LM317T Voltage Regulator with Pass Transistor

Here is a Losi Micro SCT modified for 3S operation. a 7805 voltage regulator was added on the switch terminal to trick the esc board of a continuous 5V supply thus disabling the over voltage cut off. Only the FETs and the voltage regulator is directly connected to the battery thus allowing full 3S operation on the motor and the usual 5V operation on the micro controller, AM receiver and the servo. The above video shows board power-up using multiple batteries - Stock NimH, 2S lipo, and 3S Lipo



http://www.youtube.com/watch?v=ZXW-95yYnNE&hl=en