Rotating monitor circuit

Published:2011/9/8 20:20:00 Author:Christina | Keyword: Rotating monitor | From:SeekIC

This circuit can be used to monitor the rotation of the mechanical part, the transmitter uses the approach switch AS. When the mechanical part is rotating, the switch cuts off the oscilation circuit through the gap. The approach switch AS can be used as the variable resistor which is connected with the voltage divider circuit, the fulcrum of the voltage divider circuit is connected with the Schmidt trigger, the trigger can make the square-wave voltage have the rising edge and the down edge, the hysteresis loop can produce the disturbance voltage. The left transistor's collector electrode of the Schmidt trigger is connected with the base electrode of the next transistor through the RC.



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