Electric Flight Shop
01293 406634
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Electric Flight Shop |
01293 406634 |
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Switch Mode U-BEC 3-5 Amp 42V Input, 5v Output
The Ultimate BEC eliminates the need for a separate battery pack to power your Rx and servos in electric powered aircraft, cars and boats. Numerous glow and gas powered models can also benefit from the UBEC by using it to regulate a 3-cell Lithium pack to power servos and receivers.
(Read below for more info) Use the Ultimate BEC when: Your cell count and / or number of servos exceed your speed control's ratings, or your speed controller is OPTO only (without built in BEC)
Simple to install All you do is solder the UBEC input leads onto your speed control power input leads. Plug the UBEC into your RX where you would plug in your Rx battery. - OR - Plug the UBEC into a standard on/off switch harness. Make sure you disable your speed control's BEC if it has one. It's that simple!
FAQ What makes the Ultimate BEC different from the BEC in my speed controls? Speed controls use a linear voltage regulator to reduce your battery pack voltage to 5 volts. The challenge with this kind of system is that it is limited by the input voltage and output current. Each ESC has a limit as to the amount of watts of heat it can dissipate. The Ultimate BEC is a switching power supply where input voltage and output current are independent of each other.
How do you keep your battery from running too low? Most speed controls have a low voltage cutoff feature to keep you from running down your battery too low. Thus, your Rx will still get power from your battery.
How can the UBEC be used in glow and gas powered applications? Since the UBEC is much more efficient than a linear regulator, it is a perfect match to use with lithium batteries to power a receiver. The UBEC runs at better than 90% efficiencies when run within specs. What does this mean? You will get significantly more useable energy from the lithium battery pack to power your receiver than if you used a linear regulator. We only recommend 3-cell packs in this application. the higher your input voltage....the more efficient your system will be. When using a 3-cell pack for your source power, the current draw from the battery pack will be almost half of what a 4-cell nicad pack would require.
Here's an example: A 3-cell lithium pack that is 840 mah in capacity would power your receiver and servos for about the same amount of time as a 1500 mah 4-cell nicad pack. If the radio system draws 4 amps @ 5 volts (20 watts)...the 4-cell nicad pack will have to drain at 4 amps. However...the 3-cell lithium pack will only have to dump about 2 amps to deliver the 20 watts through the UBEC.
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