What Does A Bec Do?

What Does A Bec Do
Dimension Engineering’s BEC FAQ What is a BEC? BEC stands for Battery Eliminator Circuit. In the old days of electric flight you had to use a separate 4.8V battery pack to power your receiver and servos. As the hobby evolved, speed controls started to include Battery Eliminator Circuits to power your receiver and servos, allowing you to get rid of the extra receiver battery pack.

How does a BEC work? A BEC is basically a step down voltage regulator. It will take your main battery voltage (e.g.11.1 Volts) and reduce it down to ~5 Volts to safely power your receiver and servos. What are the advantages of a BEC? If you are flying electric, a BEC is better than a battery pack in nearly all cases.

On average, the BEC will weigh 10-20 times less than a receiver battery pack! Then you have to take into account the hassle of charging the receiver pack. It is another battery you have to carry around along with another charger. Did you remember to charge it after the last time you flew? Uh-oh might want to double check that! With a BEC, you only have to worry about charging your main flight pack and then you are guaranteed to have a safe flight.

  1. Glow planes usually need a receiver pack, but the vast majority of electric planes out there are better off with a BEC.
  2. I have a 3A BEC in my speed control – is that enough? What is a switching BEC? It is very common for speed controls to have BECs rated at 2 or 3A.
  3. However, what the manufacturers do not tell you is that this rating is only true for an input voltage of 6V.

The BEC on your speed control is what engineers call a ‘linear voltage regulator’. It works by burning up excess voltage and turning it into heat. The higher the input voltage, the more heat gets produced. If there is too much heat, then the BEC will either fry, or shut down! The result of this is that in real world situations, if you are running a 3S lithium battery pack, your ESC’s BEC will only be able to provide about 0.5A before it overheats.

At 4S, most ESC manufacturers don’t recommend you use the BEC at all, or at best power two small servos. Dimension Engineering’s BECs are a different type of voltage regulator – a switching voltage regulator. They do not care very much about what the input voltage is, and as such can provide your servos with their full current rating all the way up to 8S or more.

For more information on the principles of a switching BEC, please visit our beginner’s guide to switching regulators, What are the pros and cons of internal BECs and external BECs? Most speed controls nowadays have an internal 5V linear BEC. It is a nice cheap, simple solution that works very well at low voltages like 2S lithium and 6 cell NiCd packs.

If you are flying a 2S lithium aircraft, stick with the internal linear BEC on your speed control because it will be cheaper.3S lithium and above is where a switching BEC starts to pay off. Since the external switching BEC will work efficiently at higher voltages you will immediately notice your speed control running cooler.

You will be able to run more and more powerful servos. You will be guaranteeing reliable power to your receiver and servos. If you have ever suddenly lost power to your receiver in flight, then an external switching BEC may be the answer to your problems.

  • Are there any other reasons to get an external BEC? Some of the new Spektrum receivers draw significantly more current than a normal receiver, and are particularly sensitive to voltage fluctuations.
  • An external switching BEC can help ensure your new receiver gets reliably powered.
  • Our switching BECs also allow you to have a choice of output voltage – 5 volts or 6 volts.

I’m not using a speed control. Can I still use the BEC to give me a steady voltage? By all means! Dimension Engineering BECs maintain all their specifications without a speed control attached. Be sure to cover or clip the BEC’s ESC pins so they don’t electrically contact anything.5V or 6V? One of the great things about an external switching BEC is that it allows you to choose your voltage output.

  • Running at 5V gives you standard servo response.
  • Running at 6V means more power will be delivered to your servos, so you will get more speed and torque.
  • Running at 5V or 6V will depend on what you are flying, and how you personally like to fly.
  • A simple parkflyer that isn’t doing any complicated maneuvers will probably feel best at 5V.

If you are doing complicated 3D aerobatics with sharp turns, you will probably appreciate the response 6V gives you. Helicopter flyers especially like the response 6V gives them on a tail servo. If you decide you want to run at 6V, make sure your servos can handle it.

  1. Most servos can, but some really tiny ones like the Hitec HS-50 will burn up at 6V.
  2. How will a switching BEC affect my flight time? Actually, it will barely make a difference to your flight time.
  3. Compared to your main motor, your receiver and servos barely draw much power at all.
  4. On a typical flight you can expect to have ~10 seconds less flying time if you have been using a receiver pack.

If you have been using a speed control’s linear BEC, then a switching BEC might get you ~10 seconds more flight time. Nothing really noticeable. I heard that switching BECs can put out harmful radio interference, causing reduced range. Is this true? This is true for a lot of the switching BECs on the market.

  • This is because it is relatively easy to make a switching BEC that gives you 5V and powers your servos, but it is not easy to come up with a design that is free of radio interference.
  • This takes hundreds of man hours, dozens of design revisions, expensive test equipment and extensive beta testing.
  • At Dimension Engineering, we put the time, money and effort into developing BECs that do not radiate.

As long as you keep the BEC at least 2 inches away from your receiver, antenna and other electronics, you will not experience any glitching. We guarantee it. Can you help me pick out a BEC? Here are some general guidelines for common configurations:

Plane setup Recommendation
Small planes with a 2S lithium pack Small planes with only 2 small analog servos and a 3S lithium pack No external BEC needed
Parkflyers with 4 to 6 sub-micro analog servos e.g. HS-55, HS-56 and 3+S lithium packs Parkflyers with 4 HS-81 servos and 3+S lithium packs ParkBEC
Small 3D/aerobatic flyers with 4 to 6 sub-micro analog servos e.g. HS-55, HS-56 and 3+S lithium packs Small 3D/aerobatic flyers with 4 HS-81 servos and 3+S lithium packs ParkBEC 6V
Sport planes, glow conversions, larger 3d planes, planes with multiple high torque servos, HS-65 servos and/or digital servos.3S to 8S lithium packs SportBEC

table>

Helicopter setup Recommendation Tiny coaxial helis (Blade CX, Lama) with 2S lithium packs No external BEC needed Micro helis with sub-micro analog servos e.g. HS-55, HS-56 and 3+S lithium packs.3xHS-56, 1xS9650 and a 401 Gyro is an especially popular combo with ParkBEC 6V. ParkBEC 6V Micro / mini helicopters with 3S to 8S lithium battery packs, running high speed/torque servos and/or digital servos.e.g. HS-65, HS-635, S9451, S9550 SportBEC Big helicopters with battery packs 9S to 14S lithium (33.6V to 60V) VHVBEC Really big (60″+) helicopters with battery packs 9S to 14S lithium (33.6V to 60V) with 4 digital servos drawing peak currents >1A Two VHVBECs in parallel

Contact us if you still need help choosing a product! Why should I get a BEC from Dimension Engineering when I can find a cheaper one elsewhere? A critical difference between our BECs and our competitors’ BECs is that our products are guaranteed to not cause radio interference.

  1. You can get a cheap imported BEC, but you’d just be paying 10 bucks to knock your plane out of the sky! Every manufacturer likes to boast that their BEC won’t cause interference.
  2. We actually have the data to prove it.
  3. The #1 design criterion with all Dimension Engineering BECs is that they absolutely cannot put out any harmful interference.

Other guys cut costs in ways that are downright scary. Our BECs also have a throttle pass through system, which means you can use our BECs without snipping the red wire of your speed control. Our higher powered BECs have the world’s easiest to use 5V/6V selection system.

Just flick the slide switch with your finger! There are no jumpers to lose or any complicated programming procedures. An LED will indicate whether you are in 5V or 6V mode. Finally we have great customer support for our products. In the extremely unlikely event of a problem with your BEC, we will quickly get a replacement out to you.

If you are confused on how to wire things up, send us an email and we will respond. Try doing that with an imported product!

What is the function of BEC?

From Wikipedia, the free encyclopedia In battery-powered equipment, a battery eliminator circuit ( BEC ) is an electronic voltage regulator used to power a subsystem at a different voltage without the need for a supplemental battery, BECs are commonly used in radio-controlled models, which need separate voltages to power the motor and the R/C equipment.

What does BEC mean on an ESC?

BEC: Battery-eliminating circuit. Basically just allows you to use the ESC to power the controls circuit, servos, etc. ( hence eliminating the need for a battery) SBEC: Switched battery-eliminating circuit. Just an improved version of the BEC which makes it more energy efficient.

Do ESCS need a BEC?

BEC is usually built into ESC, and as the name suggests, it eliminates the need for a separate battery to power the 5V electronic devices. What does ‘S’ mean in ‘2S, 3S 4S’? UBEC stands for universal BEC or sometimes ultimate BEC. It’s used when ESC doesn’t have built-in BEC, or standalone power system is required.

What does Traxxas BEC do?

Get Maximum Power for Your Steering Servo The TRX-4 ® is built tough enough to handle just about any trail you come across in the wild. For extreme rock crawling, you can outfit your TRX-4 with even more powerful brushless steering servos. These servos can provide over 3X more torque than the standard servo to get you out of the toughest jams.

All that power can pull a lot of current from your receiver. That’s why Traxxas developed the High-Output BEC, This powerful accessory keeps your receiver amped-up for even the highest electrical draws. Best of all, because it’s Traxxas, everything is waterproof and easy to install. High-Output BEC Installation What’s a BEC, you ask? Quick history lesson: when electric RC cars really started to take off in the late 70s and early 80s, receivers were designed to operate on 6 volts via a receiver battery (typically four AA “dry cells” or a 5-cell NiCd battery).

The 6-cell, 7.2 volt battery that powered your car could damage the receiver and servos if it powered them directly. And so, it was common for RC cars of the era to carry a separate 6-volt receiver battery along with the 7.2-volt “main battery.” The “battery eliminator circuit” (BEC) solved this problem by stepping down the voltage of the main battery to 6 volts. The #2262 High-Output BEC supplies plenty of power for all your power-hungry accessories. OK, so why do we need a separate BEC? The more powerful the steering servo, the higher the current draw will be. Without the High-Output BEC, your servo may draw more power than the speed control is designed to deliver to the receiver, causing the receiver to glitch or “brown out.” The High-Output BEC makes certain your accessories and receiver always have full power, even when they’re maxxed out. Apply the adhesive BEC pad Mount the BEC onto the receiver Receiver box covers The receiver-box cover included with the BEC is taller than the stock part. Plug the BEC in per the instructions (the diagram shown here will also help). The speed control’s plug goes into the port on the top of the BEC (be sure to press it in all the way), and the BEC’s plug goes into the receiver’s channel-2 port. Wiring diagram Y harness The BEC’s male red plug goes into the speed control’s female plug—which in our case, is already being used by the LED lighting system. No problem—the BEC includes a Y-harness so both accessories can share the plug. That’s all there is to it! Be sure to check out other popular TRX-4 accessory installations here,

How does a battery eliminator circuit work?

From Wikipedia, the free encyclopedia A battery eliminator is a device powered by an electrical source other than a battery, which then converts the source to a suitable DC voltage that may be used by a second device designed to be powered by batteries. A battery eliminator does away with the need to replace batteries but may remove the advantage of portability.

A battery eliminator is also effective in replacing obsolete battery designs. Some examples of battery eliminators include the nine-volt mains power supply, the size and shape of a PP12 battery, originally intended to replace the battery in portable radios in the 1960s. A solar panel providing power for a portable appliance may also be considered a battery eliminator.

The term is also sometimes used as a misnomer when using a bigger battery for more runtime when branching out a power supply to wired electrical equipment using DC input.

What is BEC connector?

JST RCY Plug with 10cm Leads, Female This JST RCY plug is also referred to as a BEC (battery eliminator circuit) connector and is commonly used with battery packs for RC applications. The connector is keyed so that power cannot be reversed. This is the female version of the connector (Polou also offer a matching ).

What is BEC in simple terms?

Bose-Einstein condensate (BEC), a state of matter in which separate atoms or subatomic particles, cooled to near absolute zero (0 K, − 273.15 °C, or − 459.67 °F; K = kelvin), coalesce into a single quantum mechanical entity—that is, one that can be described by a wave function —on a near-macroscopic scale.

  • This form of matter was predicted in 1924 by Albert Einstein on the basis of the quantum formulations of the Indian physicist Satyendra Nath Bose,
  • Although it had been predicted for decades, the first atomic BEC was made only in 1995, when Eric Cornell and Carl Wieman of JILA, a research institution jointly operated by the National Institute of Standards and Technology (NIST) and the University of Colorado at Boulder, cooled a gas of rubidium atoms to 1.7 × 10 −7 K above absolute zero.

Along with Wolfgang Ketterle of the Massachusetts Institute of Technology (MIT), who created a BEC with sodium atoms, these researchers received the 2001 Nobel Prize for Physics. Research on BECs has expanded the understanding of quantum physics and has led to the discovery of new physical effects.

BEC theory traces back to 1924, when Bose considered how groups of photons behave. Photons belong to one of the two great classes of elementary or submicroscopic particles defined by whether their quantum spin is a nonnegative integer (0, 1, 2, ) or an odd half integer (1/2, 3/2, ). The former type, called bosons, includes photons, whose spin is 1.

The latter type, called fermions, includes electrons, whose spin is 1/2. As Bose noted, the two classes behave differently ( see Bose-Einstein and Fermi-Dirac statistics ). According to the Pauli exclusion principle, fermions tend to avoid each other, for which reason each electron in a group occupies a separate quantum state (indicated by different quantum numbers, such as the electron’s energy).

  1. In contrast, an unlimited number of bosons can have the same energy state and share a single quantum state.
  2. Einstein soon extended Bose’s work to show that at extremely low temperatures “bosonic atoms” with even spins would coalesce into a shared quantum state at the lowest available energy.
  3. The requisite methods to produce temperatures low enough to test Einstein’s prediction did not become attainable, however, until the 1990s.

One of the breakthroughs depended on the novel technique of laser cooling and trapping, in which the radiation pressure of a laser beam cools and localizes atoms by slowing them down. (For this work, French physicist Claude Cohen-Tannoudji and American physicists Steven Chu and William D.

Phillips shared the 1997 Nobel Prize for Physics.) The second breakthrough depended on improvements in magnetic confinement in order to hold the atoms in place without a material container. Using these techniques, Cornell and Wieman succeeded in merging about 2,000 individual atoms into a “superatom,” a condensate large enough to observe with a microscope, that displayed distinct quantum properties.

As Wieman described the achievement, “We brought it to an almost human scale. We can poke it and prod it and look at this stuff in a way no one has been able to before.” BECs are related to two remarkable low-temperature phenomena: superfluidity, in which each of the helium isotopes 3 He and 4 He forms a liquid that flows with zero friction ; and superconductivity, in which electrons move through a material with zero electrical resistance,4 He atoms are bosons, and although 3 He atoms and electrons are fermions, they can also undergo Bose condensation if they pair up with opposite spins to form bosonlike states with zero net spin. Get a Britannica Premium subscription and gain access to exclusive content. Subscribe Now BEC research has yielded new atomic and optical physics, such as the atom laser Ketterle demonstrated in 1996. A conventional light laser emits a beam of coherent photons; they are all exactly in phase and can be focused to an extremely small, bright spot.

Similarly, an atom laser produces a coherent beam of atoms that can be focused at high intensity. Potential applications include more-accurate atomic clocks and enhanced techniques to make electronic chips, or integrated circuits, The most intriguing property of BECs is that they can slow down light.

In 1998 Lene Hau of Harvard University and her colleagues slowed light traveling through a BEC from its speed in vacuum of 3 × 10 8 metres per second to a mere 17 metres per second, or about 38 miles per hour. Since then, Hau and others have completely halted and stored a light pulse within a BEC, later releasing the light unchanged or sending it to a second BEC.

Is a BEC a voltage regulator?

MAP $8.99 | MSRP $13.00 The 3A-UBEC is a switch-mode DC-DC regulator supplied with a 2-6 cells lithium battery pack (or 5-18 cells NiMH /NiCd battery ), it outputs a consistent safe voltage for your receiver, gyro and servos. It is very suitable for RC helicopter.

What is speed controller with BEC?

What is a BEC? – BEC stands for battery elimination circuit, Without going into too much detail, modern ESC’s feature internal circuits that provide a regulated power supply, intended for running receivers and steering servos without needing to run extra cables from the battery to power these devices directly.

How do I know if my ESC has BEC?

A switching bec is not always better, depends on what you want. While the switching is best for most situations, the linear usually has less noise. On an oscilloscope it is easy to tell. If the ESC puts 5V out on the throttle cable it has BEC.

Does the ESC power the receiver?

What Does A Bec Do The Basic ESC uses standard RC style PWM signals so almost any off the shelf radio control transmitter and receiver can be used as a simple control system. This guide will provide some general information on how to use an RC transmitter with the Basic ESC.

RC Airplane World RC Car Transmitter Overview Guide

The following are brief descriptions of some of the components referred to in this guide.

ESC (Electronic Speed Controller) – Controls and regulates the speed of an electric motor/thruster. One ESC is required for every thruster. Transmitter – This is the controller that is held in the hands. It emits the radio signals that are picked up by the receiver and control the vehicle. Receiver – This is the device that is installed in the vehicle and receives the radio signals from the transmitter. This is also what the ESCs will plug into. Channel Mixer – Used to mix the signals from 2 separate channels, like throttle and steering. Also referred to as V-Tail mixers or Tank mixers.

Turnigy Ultra Small V-Tail Mixer Mtroniks VTail Mixer – Tank

BEC (Battery Eliminator Circuit) – Many ESCs have a built-in BEC that supplies power to the receiver. BlueRobotics Basic ESCs do not have a built-in BEC so it’s necessary to use a separate 5V power source when used with an RC receiver. The BlueRobotics 5V 6A Power Supply can be used to power the receiver.

There are two main types of RC transmitters: pistol grip and stick transmitters. Both can be used with the Basic ESC. Deciding which type to use depends on the desired control method and features.

What voltage is a BEC?

Dimension Engineering’s BEC FAQ What is a BEC? BEC stands for Battery Eliminator Circuit. In the old days of electric flight you had to use a separate 4.8V battery pack to power your receiver and servos. As the hobby evolved, speed controls started to include Battery Eliminator Circuits to power your receiver and servos, allowing you to get rid of the extra receiver battery pack.

How does a BEC work? A BEC is basically a step down voltage regulator. It will take your main battery voltage (e.g.11.1 Volts) and reduce it down to ~5 Volts to safely power your receiver and servos. What are the advantages of a BEC? If you are flying electric, a BEC is better than a battery pack in nearly all cases.

On average, the BEC will weigh 10-20 times less than a receiver battery pack! Then you have to take into account the hassle of charging the receiver pack. It is another battery you have to carry around along with another charger. Did you remember to charge it after the last time you flew? Uh-oh might want to double check that! With a BEC, you only have to worry about charging your main flight pack and then you are guaranteed to have a safe flight.

Glow planes usually need a receiver pack, but the vast majority of electric planes out there are better off with a BEC. I have a 3A BEC in my speed control – is that enough? What is a switching BEC? It is very common for speed controls to have BECs rated at 2 or 3A. However, what the manufacturers do not tell you is that this rating is only true for an input voltage of 6V.

The BEC on your speed control is what engineers call a ‘linear voltage regulator’. It works by burning up excess voltage and turning it into heat. The higher the input voltage, the more heat gets produced. If there is too much heat, then the BEC will either fry, or shut down! The result of this is that in real world situations, if you are running a 3S lithium battery pack, your ESC’s BEC will only be able to provide about 0.5A before it overheats.

At 4S, most ESC manufacturers don’t recommend you use the BEC at all, or at best power two small servos. Dimension Engineering’s BECs are a different type of voltage regulator – a switching voltage regulator. They do not care very much about what the input voltage is, and as such can provide your servos with their full current rating all the way up to 8S or more.

For more information on the principles of a switching BEC, please visit our beginner’s guide to switching regulators, What are the pros and cons of internal BECs and external BECs? Most speed controls nowadays have an internal 5V linear BEC. It is a nice cheap, simple solution that works very well at low voltages like 2S lithium and 6 cell NiCd packs.

If you are flying a 2S lithium aircraft, stick with the internal linear BEC on your speed control because it will be cheaper.3S lithium and above is where a switching BEC starts to pay off. Since the external switching BEC will work efficiently at higher voltages you will immediately notice your speed control running cooler.

You will be able to run more and more powerful servos. You will be guaranteeing reliable power to your receiver and servos. If you have ever suddenly lost power to your receiver in flight, then an external switching BEC may be the answer to your problems.

  1. Are there any other reasons to get an external BEC? Some of the new Spektrum receivers draw significantly more current than a normal receiver, and are particularly sensitive to voltage fluctuations.
  2. An external switching BEC can help ensure your new receiver gets reliably powered.
  3. Our switching BECs also allow you to have a choice of output voltage – 5 volts or 6 volts.

I’m not using a speed control. Can I still use the BEC to give me a steady voltage? By all means! Dimension Engineering BECs maintain all their specifications without a speed control attached. Be sure to cover or clip the BEC’s ESC pins so they don’t electrically contact anything.5V or 6V? One of the great things about an external switching BEC is that it allows you to choose your voltage output.

  1. Running at 5V gives you standard servo response.
  2. Running at 6V means more power will be delivered to your servos, so you will get more speed and torque.
  3. Running at 5V or 6V will depend on what you are flying, and how you personally like to fly.
  4. A simple parkflyer that isn’t doing any complicated maneuvers will probably feel best at 5V.

If you are doing complicated 3D aerobatics with sharp turns, you will probably appreciate the response 6V gives you. Helicopter flyers especially like the response 6V gives them on a tail servo. If you decide you want to run at 6V, make sure your servos can handle it.

Most servos can, but some really tiny ones like the Hitec HS-50 will burn up at 6V. How will a switching BEC affect my flight time? Actually, it will barely make a difference to your flight time. Compared to your main motor, your receiver and servos barely draw much power at all. On a typical flight you can expect to have ~10 seconds less flying time if you have been using a receiver pack.

If you have been using a speed control’s linear BEC, then a switching BEC might get you ~10 seconds more flight time. Nothing really noticeable. I heard that switching BECs can put out harmful radio interference, causing reduced range. Is this true? This is true for a lot of the switching BECs on the market.

This is because it is relatively easy to make a switching BEC that gives you 5V and powers your servos, but it is not easy to come up with a design that is free of radio interference. This takes hundreds of man hours, dozens of design revisions, expensive test equipment and extensive beta testing. At Dimension Engineering, we put the time, money and effort into developing BECs that do not radiate.

As long as you keep the BEC at least 2 inches away from your receiver, antenna and other electronics, you will not experience any glitching. We guarantee it. Can you help me pick out a BEC? Here are some general guidelines for common configurations:

Plane setup Recommendation
Small planes with a 2S lithium pack Small planes with only 2 small analog servos and a 3S lithium pack No external BEC needed
Parkflyers with 4 to 6 sub-micro analog servos e.g. HS-55, HS-56 and 3+S lithium packs Parkflyers with 4 HS-81 servos and 3+S lithium packs ParkBEC
Small 3D/aerobatic flyers with 4 to 6 sub-micro analog servos e.g. HS-55, HS-56 and 3+S lithium packs Small 3D/aerobatic flyers with 4 HS-81 servos and 3+S lithium packs ParkBEC 6V
Sport planes, glow conversions, larger 3d planes, planes with multiple high torque servos, HS-65 servos and/or digital servos.3S to 8S lithium packs SportBEC

table>

Helicopter setup Recommendation Tiny coaxial helis (Blade CX, Lama) with 2S lithium packs No external BEC needed Micro helis with sub-micro analog servos e.g. HS-55, HS-56 and 3+S lithium packs.3xHS-56, 1xS9650 and a 401 Gyro is an especially popular combo with ParkBEC 6V. ParkBEC 6V Micro / mini helicopters with 3S to 8S lithium battery packs, running high speed/torque servos and/or digital servos.e.g. HS-65, HS-635, S9451, S9550 SportBEC Big helicopters with battery packs 9S to 14S lithium (33.6V to 60V) VHVBEC Really big (60″+) helicopters with battery packs 9S to 14S lithium (33.6V to 60V) with 4 digital servos drawing peak currents >1A Two VHVBECs in parallel

Contact us if you still need help choosing a product! Why should I get a BEC from Dimension Engineering when I can find a cheaper one elsewhere? A critical difference between our BECs and our competitors’ BECs is that our products are guaranteed to not cause radio interference.

  • You can get a cheap imported BEC, but you’d just be paying 10 bucks to knock your plane out of the sky! Every manufacturer likes to boast that their BEC won’t cause interference.
  • We actually have the data to prove it.
  • The #1 design criterion with all Dimension Engineering BECs is that they absolutely cannot put out any harmful interference.

Other guys cut costs in ways that are downright scary. Our BECs also have a throttle pass through system, which means you can use our BECs without snipping the red wire of your speed control. Our higher powered BECs have the world’s easiest to use 5V/6V selection system.

  • Just flick the slide switch with your finger! There are no jumpers to lose or any complicated programming procedures.
  • An LED will indicate whether you are in 5V or 6V mode.
  • Finally we have great customer support for our products.
  • In the extremely unlikely event of a problem with your BEC, we will quickly get a replacement out to you.

If you are confused on how to wire things up, send us an email and we will respond. Try doing that with an imported product!

What is the difference between BEC and ESC?

OK, it’s been covered but not always understood. What is a BEC? What is a UBEC? In an electric-powered radio controlled model, the BEC is typically part of the electronic speed control (ESC). BEC allows such a model to carry only one battery (the motive power battery) instead of two (motive power, and a separate battery to operate the R/C equipment).

  • A BEC-equipped ESC meant for airplane use often incorporates a low-voltage-cutoff (LVC) circuit which can sense the voltage drop caused when the battery has little charge left in it.
  • It then cuts the power to the ‘drive’ motor in order to provide the ‘steering’ servo(s) with enough power to be able to bring the model safely back to the operator.

The power to the propeller would be cut but the operation of the control surfaces would be maintained in order to perform a dead-stick landing, Without this feature, all control would be lost when the battery expired, probably resulting in the destruction of the model.

  • In some cases, the BEC is part of the radio control receiver, instead of being part of the ESC.R/C BECs in their simplest form use a linear fixed voltage regulator with its standard circuit suggested in the manufacturer’s datasheet – usually the power supply of the receiver needs 5 V.
  • Low-drop types are preferred – especially for batteries with only a few cells.

For small models, 1.5 to 2 A are enough; for mid-size models a 3 A type needs to be considered. BECs for large models have to provide current of 5 A or more. There a more complicated switched-mode regulator should be used, as the BEC has to deal with losses.

  • These losses are proportional to the difference of the target voltage of 5 volts and the voltage of the main battery; as well as they are proportional to the provided current.
  • For example, take a 10-cell ( NiMh ) accumulator with a normal voltage of 12 volts.
  • With a peak current of 5 A, the BEC will have losses of (12 V − 5 V) × 5 A = 35 W.

With a linear regulator, these 35 W will be converted to heat and so require a large heat sink. In all cases, it is a good idea to mount some large capacitors to buffer the regulated output. In large plane or ship models, another possibility is to buffer the power supply with a further capacitor near the actuator’s (servos).

  • Hey, that was stolen from Wikipedia, no, I wrote the entry for Wikipedia.
  • Now, what’s the difference between a BEC and a UBEC? These days, the term has become somewhat askew and considered the same and there are similarities.
  • In the beginning of HV electricity in RC, capacitor based circuitry was used to supply the correct voltage to the receiver and thusly the components.

Along came the UBEC Universal Battery Eliminator Circuit. They were big, clunky and always external. And then along comes the ESC with the appropriate circuitry built in and the common name BEC was used. So, what’s the difference. Again, the terms are askew no days but the original nomenclature of each is this.

The BEC is linear while the UBEC is considered a switch mode BEC. The BEC has a more undisturbed signal an voltage and cheaper to manufacture. Adversely, they are less efficient and generate higher temperatures at greater voltages. The UBEC generally handles higher voltages, runs cooler and is more efficient.

On the down side, they have an increased component count so they are more expensive to produce and they have somewhat of a dull hum that makes them louder. Here’s a modified pic to show you how to hook one up. What Does A Bec Do

Where do you plug in BEC?

To understand why they are called battery elimination circuits, you have to go back in time — way back to the early days of electric radio controlled vehicles. Back then, you had to have two batteries to power the vehicle — one to power the motor (like today) and another to power the radio system.

  • This second battery pack, usually just a holster to hold four AA batteries, was plugged into a battery port on the receiver.
  • This was inefficient, as the batteries were heavy and took up space.
  • Eventually, someone came up with the concept of a battery eliminator circuit — a device that could step down the voltage from the main battery to make it safe for the radio system to use, and eliminate the need for the second battery (hence the name).

The first BECs were built into the receiver, not speed controls, but eventually, as the need for more powerful BECs grew, the ESC manufacturers took it upon themselves to include them into their products. Thus the modern BEC was born. A BEC is (usually) a switching voltage regulator that turns on and off very rapidly so as to allow only the necessary amount of energy through at a time.

  1. This allows for high efficiency BECs that can supply high amounts of power, and even have output voltages higher than the input voltages.
  2. The average current rating of today’s built-in BECs hovers around 3 Amps, though some are much higher.
  3. Unfortunately, the demands of today’s high-torque servos in large-scale airplanes, rock crawlers and much more means these 3A BECs are occasionally not sufficient, and now we have external BECs available to take up the slack.

Using an external BEC isn’t as easy as simply plugging it in. There is some nuance to using an external BEC correctly. Here’s what you need to know.

Power is provided from the main battery, same as the built-in BEC on your speed control. However, that means the external BEC needs to be “tapped into” the power wires before they reach the speed control. There are multiple ways to do this: you could simply solder the positive and negative wires from the external BEC to the power connector on the ESC, or you could make a wiring harness that allows for a more modular, plug-and-play option. The external BEC can be plugged into any open servo port on your receiver. If you don’t have any open, you can also Y-Harness it into any servo or ESC-occupied port. The external BEC replaces a speed control’s built in BEC; they don’t play nice together. Thus the red wire on the ESC’s receiver lead must be either clipped or pulled out before it reaches the receiver. Failure to do this can result in the overloading of the built-in BEC on the speed control, damage to your servos, damage to the external BEC, or all three! If your external BEC has adjustable voltage output, make sure to set it properly for your servos’ specs – if the voltage is too high, you can damage your servos; too low, and you run the risk of brownouts or sluggish servos.

Those are only a couple of the BEC wiring options you can do, but they should start as a launching point for your own R/C vehicle. So if you’re experiencing brown-outs or slow actuating servos, maybe try an external BEC — it’s a great way to ensure constant power to your electronics! Good luck!

What is Traxxas most powerful motor?

World-Record Performance: The 100+MPH XO-1 With a full stable of models easily capable of topping 50, 60, and even 70mph, Traxxas’ reputation as The Fastest Name In Radio Control was earned by sheer performance. But being the fastest isn’t a reason not to go faster, and with the XO-1, the Traxxas engineering team was challenged to do just that. Extreme 6s Horsepower High-output 6S power became a Traxxas staple with the award-winning E-Maxx and E-Revo Brushless Edition models as well as the Spartan superboat, but the XO-1’s 100mph mission required the most powerful brushless system yet. At more than 100mph, the XO-1 is basically pushing against a wall of air. Aerodynamic Engineering Shaping the XO-1 required more than just a sleek look. In addition to the aerodynamic efficiency required to punch a 100mph hole through the air, the XO-1 had to produce significant downforce to generate the traction required to overcome air resistance. Putting Tire Tech to the Test Very early in prototype testing, it became clear that off-the-shelf tire compounds and glues were not up to the task of repeated 100+mph passes. An entirely new type of tire, and a new glue to hold the tires onto the rims, was essential to the XO-1 program.

After many test miles and 100+mph pulls, the correct blend of tread life and traction-enhancing softness was sorted out. To resist tire-tearing centrifugal force, stretch-resistant belts were molded into the rubber. For a 100mph-proof bond, Traxxas developed an extra-pure, extra-strong cyanoacrylate glue.

In addition to its place on the XO-1 assembly line, you can find Traxxas Ultra Premium Tire Glue at your favorite hobby store. Electronic Stability At 100+mph, things happen fast. In just one second, the XO-1 covers more than 140 feet! Precise control is a must at such speeds, and the XO-1 delivers with Traxxas Stability Management (TSM).

Faster than a human can react, TSM monitors and responds to the car’s attitude and the driver’s input to virtually eliminate fishtailing and sliding. And you can dial up as much or as little assistance as you want—turn it down for big drifts and donuts, turn it up for locked-in handling at 100mph. TSM is adjusted on the fly, right from the TQi transmitter via the Multi-Function knob.

There’s no need to stop or access the XO-1’s electronics. A Technological Tour de Force Everything the Traxxas engineering team learned about going fast went into the XO-1. The shaft-drive system that made the Slash 4X4 the most popular 4WD short-course truck was extended and outfitted with new, all-metal CV axles and rugged Cush Drive for the XO-1.

The ultra-high-output brushless system built on lessons from the E-Revo and E-Maxx Brushless Edition models—which would later be further refined for the Maxx and X-Maxx. Traxxas telemetry technology became standard equipment, so drivers could see the speedometer needle swing past 100mph in real time.

Belted tires. Proprietary, speed-rated glue. Aluminum chassis and components, and more. The XO-1 puts every Traxxas innovation to work in one car, and there’s still nothing faster.

Can Traxxas get wet?

latest news What Does A Bec Do Wet Weather Maintenance Tips How to Care for your Vehicle After Running in Water Traxxas was the first manufacturer to offer waterproof electronics on a Ready-To-Race ® truck. This innovative feature now comes standard on almost every vehicle to wear the Traxxas name.

  • Inclement weather no longer puts an end to your adventures.
  • Traxxas cars and trucks plow through puddles, shred snow, and rip massive mud roosts for the kind of fun you demand from your RC vehicle.
  • The following video will show you how to care for your Traxxas car or truck after tackling the elements and keep it in peak running form.

: latest news

How long do Traxxas brushed motors last?

Brushed motor life is limited by the brush type and can attain 1,000 to 3,000 hours on average, while brushless motors can attain tens of thousands of hours on average, as there are no brushes to wear.

What are the disadvantages of battery eliminator?

What is the downside of using a battery eliminator? – Of course, even though a battery eliminator has many advantages, it has some disadvantages too. Let’s explore the major disadvantages of using a battery eliminator. One major disadvantage of using a battery eliminator is that it doesn’t allow portability.

You might ask us; how will the battery eliminator give up on the portability? As you know, battery eliminators try to remove batteries, and it ends up powering the device with the help of a power supply or a battery eliminator or any external power outlets from a wall which ends up sacrificing the portability factor of the batteries.

Source: http://www.dcmsme.gov.in/old/publications/pmryprof/it/ch4.pdf http://www.allprojectreports.com/CBSE-HBSE-School-Projects/Physics-Project-Report/battery_eliminator.htm http://www.learningaboutelectronics.com/Articles/How-to-build-a-battery-eliminator.php : What is a battery eliminator?

Does a circuit drain the battery?

However if you have a very simple circuit, for example a light bulb connected to the battery, the battery will drain slowly based on the watts used by the light bulb.

What is a BEC for RC cars?

BECs — Castle Homepage CC BEC (Battery Eliminator Circuit) is a small device that eliminates the need for a receiver battery. It draws voltage from the motor batteries and drops it to a voltage level that is suitable for your receiver and servos. This is required in applications which use high power servos, where the ESC does not have an internal BEC, or the existing BEC is inadequate. What Does A Bec Do From the trusted manufacturer of BECs comes the next generation of voltage regulators, Designed and assembled in the USA1, Castle Creations’ CC BEC 2.0 gives users higher voltage ranges in two unique packages, For pilots there is a smaller, lightweight (0.7 oz.) design capable of 14 amps peak, perfect for sport flying, helicopters, and UAVs, What Does A Bec Do What Does A Bec Do What Does A Bec Do : BECs — Castle Homepage

How to bypass a BEC?

by | Sunday, June 9, 2019 | When dealing with servos making 470-630oz-in of torque, the BEC built into the ESC struggles. In part it’s because the BECs are rated optimistically by manufacturers (e.g. under ideal conditions of cooling seldom, if ever, seen in the real world).

So when it’s hotter than in the lab, especially without the 5mph cooling breeze with which they’re rated (read the specs, they tell you), the current output goes down. Way down. The other thing is, the connector on the lead is rated at 5A – so regardless of how much current the BEC can output – the real world limit is that connector going into the receiver.5A and that’s it! Fortunately, there are ways around this problem.

We’ve seen all kinds of attempts to resolve this. Some involve monkeying around with powering the servo directly, e.g. bypassing the receiver. But this is a needless complication. Another way involves forking over for a pricey high power BEC. But in our opinion, the ideal solution involves just using an inexpensive LiPo.

  • Once you commit to powering the electronics with a LiPo instead of a BEC you’re basically treating treating the system like one used in a nitro powered model.
  • This also totally isolates propulsion-electronics from control-electronics.
  • The benefit of this is your delicate receiver and servos won’t ever again see voltage spikes or back-EMF coming from the motor, which is better because they’re not designed for that.

Note, all ProModeler packs from 1000mAh and up come with two leads to overcome the 5A limitation. Other manufacturers offer packs built this way, also. As for hooking the two lead pack up? It’s easy! Just remove the + wire from the throttle lead and that disables the power coming from the BEC to the receiver.

Next, connect the battery to the receiver and you’re in business. How do you actually connect two leads to the receiver? That’s easy too. Remember, the point of two leads is this allows the receiver to draw up to 10A (recall the limit is the plug itself, which is rated at 5A). By using two leads (e.g. two plus) the whole thing can draw 10A (5A+5A).

Little known fact, packs with two leads were our very first product at ProModeler although at the time, the reason had nothing to do with exceeding 5A. Anyway, to make it easy to power up the system, just add two short extensions to the receiver. Plug one into the BAT-port.

  • Plug the other at any free channel on the receiver.
  • And if you don’t have a spare channel, use a Y-connector (one side for the servo and the other for the second lead then connect it to the receiver).
  • Oh, and leave these permanently connected to the receiver.
  • Now when you connect the battery, you do it conveniently at the extensions instead of poking around at the receiver.

Ones from 3-6″ long work fine. This entry was posted in no categories.

Why use an external BEC?

If you’re experiencing brown-outs, glitching, or slow actuating servos it may be time to try an external BEC (Battery Eliminator Circuit). This scenario can occur in an application which uses high powered servos (or additional torque increasing modifications), where the ESC does not have an internal BEC, or the existing internal BEC is simply inadequate.

  1. A BECs primary purpose is to draw voltage from the motor batteries and drop it to a voltage level that is suitable for your receiver and servos.
  2. Simply put, an external BEC will provide clean and constant power and ensure you are not underpowered.
  3. Installing a BEC is pretty easy, assuming you don’t mind a little soldering.

Our BECs include wiring instructions.

What is dual BEC?

Alien Copter Dual BEC ESC Power Distribution Board With LED 100A

    • It can handle up to 8Â ESC/motors and makes the wiring of your multirotor system simple and tidy.
    • Inbuilt, dual BEC/voltage regulators allow the use of your main battery for powering both the flight controller (5V) and FPV systems (10~20V)
    • Suitable for multirotors up to 800mm rotor span and a total working current no higher than 120A max.
    • Features:

    • Dual, integrated UBEC and FPV voltage regulators: 1 x 5V fixed, 1 x 10~20V adjustable• Drives up to 8 ESC/motor combinations (octacopter)• Bright LED lights • Offers a simple wiring solution

  1. Specifications: With dual BEC output Round ESC distribution board With 12 ESC solder pan, 2 main power input Power solder pan: 2set ESC solder pan: 12set
  2. Max.current: 100A

N.W.: 18g Size: Outer diameter 77mm, inner diameter 40mm

  • Max.voltage support: 6S
  • BEC output: 5V 3A10-20V 3A adjustable
  • Package included:

1 x J&K Dual BEC ESC Power Distribution Board Power Connection Plate. : Alien Copter Dual BEC ESC Power Distribution Board With LED 100A

What is the difference between BEC and UBEC ESC?

What is BEC and UBEC? What is the difference? Why do I need an UBEC? BEC stands for Battery Elimination Circuit, It’s just a fancy name for voltage regulator, which converts main LiPo battery pack voltage to a lower voltage (e.g.2S 7.4V, 3S 11.1V or 4S 14.8V to 5V).

BEC is usually built into ESC, and as the name suggests, it eliminates the need for a separate battery to power the 5V electronic devices. UBEC stands for universal BEC or sometimes ultimate BEC, It’s used when ESC doesn’t have built-in BEC, or standalone power system is required. They generally are more efficient, more reliable and able to provide more current than BEC.

The UBEC is connected directly to the main battery of the multicopter, the same way as an ESC. In layman’s terms, UBEC has the following advantages over ESC built-in BEC:

UBEC are more power efficient BEC tends to overheat with large input/output voltage difference, or large load; UBEC doesn’t have this problem and thus more reliable UBEC generally can provide more current safely

The reason behind these are due to the way how voltage is regulated. Most BEC are linear type, and UBEC are switching type. For a more technical insight, please carry on to the next section: Linear BEC VS Switching BEC. If your ESC don’t have BEC, you can use an external UBEC to power your FC and RX.

The UBEC’s input cable should be connected to the LiPo battery, and the output cable to the RX and FC. No change is required in the ESC connection. But if you want to power your FC and RX with an UBEC, while your ESCs have built-in BECs, those BECs first needs to be disabled/disconnected from your system.

Simply remove the red wire (5V) from the output servo lead of the ESC.

What does switch mode BEC mean?

What is a “switch-mode” BES or ESC?

Thread OP I see some that say switch-mode and some that don’t. What does it mean?

table>

to remove ads between posts

table>

Some ESC’s have BEC’s built into them. BEC=battery elimination circuit. There are two types switch mode and linear mode BEC’s. The BEC’s job is to step down the voltage so the receiver and servos can be powered by ~5v, what they require. Linear BEC’s are not very effective at the way the step down the voltage and in the process they generate quite a bit of heat. The more input voltage they have the less efficient they are. But they are cheap. The higher the input voltage the less “output” amperage the BEC is able to provide. You will generally see 3s as the max voltage for them. Switch mode are much more effective at stepping down the voltage but they are more expensive to make. They are able to handle much higher input voltages and thus you can use 4s 5s and 6s voltages (generally) and still power 4-5 servos. Mike Last edited by pda4you; Feb 16, 2009 at 09:56 PM,

table>

Thread OP Does the turnigy plush 40a have this switch mode BEC? I see no mention of it on the site. NM, I see it’s linear. This one says it’s switch mode, but has some weird connector for the balance plug. Know of any chinese switch mode ESCs that are just normal ESCs?

table>

That balance connector is so the ESC can keep an eye on individual cell voltage. It’s not needed to use the ESC, though. Read through the comments there, there’s some good information about it. Just have to sort out the ones that stretch the truth.

table>

That “weird” connector is 3 different connectors to allow the user to connect to the balance connector that happens to be used by their preferred battery manufacturer. Only problem is that it adds a little weight, but saves you from cutting it off and installing one that fits your battery. Ron

table>

If it does not say switch mode – it is HIGHLY unlikely it is.

table>

Quote:

Originally Posted by crash331 Does the turnigy plush 40a have this switch mode BEC? I see no mention of it on the site. NM, I see it’s linear. This one says it’s switch mode, but has some weird connector for the balance plug. Know of any chinese switch mode ESCs that are just normal ESCs?

I am currently using several 60 amp Turnigy ESC’s and they are swtch mode and can be used with up to 6 cells. They are excellent and most importantly affordable!

What is a “switch-mode” BES or ESC?

What is the BEC voltage of Hobbywing 1080?

QUICRUN WP 1080 brushed ESC (G1 30112750) Water-proof and dust-proof for all-weather Rack Crawler & boat application

Water-proof and dust-proof, suitable for all-weather races. Small size, with built-in capacitor module.100% Waterproof PWM Frequency: 1K/2K/4K/8K/16K Adjustable Freewheeling (DEO) capability Drag brake rate in 9 levels (adjustable) Electronic switch Aluminum case for great heat dissipation Great current endurance capability. Great built-in BEC output capacity. Automatic throttle range calibration, easy to use. Multiple protections:

Over Voltage Protection Low voltage cut-off protection for battery Over-heating protection Throttle signal loss protection, and much more

Risk-Free manufacturer’s limited warranty available through Authorized Dealers in North America

ESC LED program card Bonus accessories (heat sink, etc) User’s manual Decal

QUICRUNBrushed ESC WP 1080 Rock CrawlerBRUSHED ESC
p/n 30112750
Waterproof Yes
Dual Mode No
80A / 400A30A / 180A
Car Applicable 1/8 – 1/10 Rock Crawler and Tank or Boat
Motor Limit Brushed Motors540/550/775 Series 2S LiPo or 6S NiMH: ≥10T or\RPM 3S LiPo or 9S NiMH: ≥16T or RPM
Battery 2-3S LiPo or 5-9S NiMH
BEC Output 6V/7.4V @ 3A (switch mode)
PWM Frequency Adjustable1K/2K/4K/8K/16K
Wires 14AWG-200mm w/ XT60 Connector
Size/ Weight 36.5(L)* 32(W)*18(H) (without fan)
External Program Port External Program Port Available
Programming LED Program card
Cooling Fan Without cooling fan
Weight* 58.5g

Available through the Authorized Dealer Network in North America