Simplified PWM DC Servo Circuit by Using NE5560

Published:2011/6/4 22:42:00 Author:Michel | Keyword: PWM DC Servo, Circuit | From:SeekIC

Circuit's Principle When the linear drive DC servos the motor,the heating quantity will increase if the output transistor's power drops.On high-power conditions,usually,pulse amplitude drive mode are used like this circuit.The heating is controlled through incresing power by switching transistor's switch.The PWM circuit can be consistued by division elements.But this circuit uses part of ICNE5560 to simplify the circuit.OP amplifier A1 is error amplifier. Speed control signal is proportional to deviation.The speed feedback terminal inputs rotate speed sensor signal.



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