Windshield wiper controller

Posted on Jul 30, 2012

This circuit provides complete speed control over car`s windshield wipers. They can be slowed down to any rate even down to four sweeps per minute

Windshield wiper controller
Click here to download the full size of the above Circuit.

The controller has two principal circuits: The rate-determining circuit—a unijunction transistor connected as a freerunning oscillator, and the silicon-controlled rectifier which is the actuator.

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