UBEC 3A 2-6S LiPo Power Stabilizer

UBEC 3 A is a switched DC power stabilizer; Powered by a 2-6S LiPo battery, the input voltage drops to a level suitable for powering RC receivers and onboard electronics and stabilizes the output voltage at a set value (5.0 or 6.0 V). The UBEC load is 3 A continuous, 5 A peak. This makes it suitable for smaller RC helicopters, multi-kickers, cars, boats or aircraft models.

• It uses an advanced DC down-converter with current and thermal overload protection, operating at an efficiency approaching 90%.
• Small dimensions and low weight for easy installation and use.
• 2 optional output voltages (with short-circuit jumper) suitable for all types of receivers, gyros, servos, etc.
• Indicator LED indicating UBEC operating state.
• Protection against reverse polarity of the supply voltage. If UBEC is connected to the opposite polarity of the supply voltage, the UBEC will not work but will not be destroyed for this reason. All you have to do is involve it with the correct polarity.
• Electronic electronics cover and ferrite ring on the output cable to suppress electromagnetic radiation.

Comparison of linear BEC and switched BEC

• When powered from a lithium battery with more than 3 cells, the switching BEC has a much higher efficiency than a linear BEC.
• Traditional linear BEC: eg 4 S LiPo battery has a rated voltage of 14.8 V; To make a BEC output of 5 V at a current of 1 A, the BEC will be at least 1 A, so the BEC power will be 14.8 V x 1 A = 14.8 W. But we only use 5 V x 1 A = 5 W , So the efficiency of the linear BEC is only 5 W / 14.8 W = 33.8%, the remainder (14.8 W - 5 W = 9.8 W) is converted to heat without heat, which causes a strong BEC heating.
• Switched BEC under the same conditions will only receive 0.38 A (actual measured value) to ensure current 1 A at 5 V output, so the BEC power input is 14.8 V x 0.38 A = 5.6 A and the BEC efficiency is 5 W / 5.6 W = 89.3%" / Li>

Using UBEC

• Model with electric drive with OPTO controller: Connect the UBEC directly to the outputs of the drive accumulator and plug the UBEC output connector into the battery socket (or other free power socket) on the receiver.
• Electric drive model with controller with built-in power stabilizer (BEC): Before connecting UBEC, you must disconnect the red wire (+) in the regulator servo unit to disable the built-in BEC. Otherwise, the UBEC connection is the same as the OPTO controller.
• Model with combustion engine or glider: Connect the UBEC directly to the outputs of the battery, and plug the UBEC output connector into the battery socket (or other free power socket) on the receiver.

Tip: Place a UBEC in the model at a distance of at least 5 cm from the receiver to reduce possible interference.