# Driving servo motor with PWM signal

I want to drive servo motor with PWM signal.Servo motor rotation angle changes with the ratio of the duty cycle.Generally , servo motor rotation angle according to PWM can be seen in figure below.

Suppose that

1. I apply duty cycle with 1ms but Vmax=12V and V min =-12V
2. I apply same duty cycle but Vmax=12V and Vmin=0V .

In both cases ,will I obtain same rotation angle on the servo motor?If not ,Is there spesific Vmax and Vmin voltage to rotate servo like in figure above?

• What device are you using that utilizes PWM? (e.g. is it an Arduino, etc.?) – KingDuken Dec 24 '17 at 20:25
• what does this mean? servo motor – jsotola Dec 24 '17 at 20:26
• I obtain square wave by using negative resistance converter with capacitor then I integrate square wave by using integrator op amp and finally by comparing integrator output with reference voltage I obtain PWM – distortion Dec 24 '17 at 20:27
• Some motors are polar and others are bipolar for supply and control. Which do you have? – Tony Stewart Sunnyskyguy EE75 Dec 24 '17 at 20:30
• If you apply +/-12V to a 4.8V servo you probably won't get rotation. Smoke, maybe. – Brian Drummond Dec 24 '17 at 23:25