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How to Use BEC in Radio Systems

A battery eliminator circuit (BEC) is a light-weight component that makes use of the battery power from the motor of a radio-controlled (RC) flight vehicle to power the radio system as well. Aiding the demand to make RCs smaller and still have the power for various flight capabilities, BEC allows for the elimination of a weighty four-cell NiCd battery to power the radio system that receives the flight signal from the RC's remote.

Instructions

- 1
  Use a standard configuration where the BEC is attached to the motorboard. The power input, from the throttle to BEC, will be transferred to power the radio system receiver through the power output connection, from BEC to receiver.
- 2
  Use a hybrid configuration where the NiCd battery power both the motor and the receiver. The BEC provides secondary backup power for the radio system receiver if the battery dies only.
- 3
  Use an all-in-one configuration where the BEC, throttle component and radio receiver are manufactured as a single unit on the motorboard. This configuration allows for the lightest RC motor setup.

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