UC3625 brushless DC motor open loop speed control

28 is 45V/8A brushless DC motor driving circuit diagram. It is an open voltage-controlled, adjustable by one pin external potentiometer adjustment of the PWM duty cycle, the av

erage voltage supplied to the motor control to adjust the speed. Table figure only shows the way to a three-phase bridge by 16 feet (PUC) and 12 feet (PDC) are driven P-channel and N-channel MOSFET. Rejection two current sensing resistor RT and helmet, so the circuit can operate in four-quadrant mode, the brake can be controlled, and an average current control system.

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