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DC motor servo control circuit diagram

2015-03-01 09:55  
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DC motor servo control circuit diagram
In the circuit, when E, O are input DC voltage, the motor will be moved to a position corresponding with the voltage. The potentiometer connected to the same coaxially of motor is used as position feedback. When the given voltage is equal to 1k potentiometer wiper contact voltage, the differential amplifier output is zero, so the motor is stationary; Otherwise, the motor will be transferred or reversal according to the size of the signal.