The smart car drive circuit is a full bridge drive circuit. Four triodes Q1, Q2, Q3 and Q4 form four bridge arms. Q5 controls the on and off of Q2 and Q3, and Q6 controls the on and off of Q1 and Q4. The drive circuit is used for the rear wheel power drive circuit and the front wheel direction drive circuit respectively. When pin 1 is at high level and pin 2 is at low level, Q1 and Q4 are on, Q2 and Q3 are off, and the motor drives the wheel to run; When pin 1 is at low level and pin 2 is at high level, Q1 and Q4 are cut off, Q2 and Q3 are turned on, and the motor drives the wheel to run in reverse.
- Circuit Diagram