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my choises are:
1. when the pwm unit output is high the supply voltage be at the motor terminals and when the pwm unit output is low disconnect the Vs and let the motor rotate freely.
2. when the pwm unit output is high Vs be at the motor terminals and when the pwm unit output is low brake the motor by connecting both terminals to Vs or Gnd.
3.when the pwm unit output is high the supply voltage be at the motor terminals and when the pwm unit output is low revers Vs become to the motor terminal.
i do not need the motor to rotate in both directions but fast reaching to the desire speed is critical.
1. when the pwm unit output is high the supply voltage be at the motor terminals and when the pwm unit output is low disconnect the Vs and let the motor rotate freely.
2. when the pwm unit output is high Vs be at the motor terminals and when the pwm unit output is low brake the motor by connecting both terminals to Vs or Gnd.
3.when the pwm unit output is high the supply voltage be at the motor terminals and when the pwm unit output is low revers Vs become to the motor terminal.
i do not need the motor to rotate in both directions but fast reaching to the desire speed is critical.