Automatic Wiper Control Circuit using NE 555 IC
The circuit utilizes the NE 555 timer IC configured in astable mode to control the operation of a windshield wiper motor. The primary function of this circuit is to provide an adjustable intermittent wipe feature, allowing the wipers to operate at a set interval, specifically every 10 seconds.
In this design, the NE 555 generates a square wave output that drives a transistor, which acts as a switch for the wiper motor. The frequency of the square wave is determined by the values of two resistors (R1 and R2) and a capacitor (C1) connected to the 555 timer. The duty cycle can be adjusted by varying the resistance values, which in turn changes the time the wipers are on and off.
The circuit is powered by the vehicle’s battery, typically at 12V, and includes components such as diodes for flyback protection to prevent back EMF from damaging the circuit when the motor is turned off. Additionally, a potentiometer may be included in the circuit to allow for fine-tuning of the delay interval based on user preference.
This design not only enhances the functionality of the windshield wipers but also contributes to safer driving conditions during inclement weather by ensuring optimal visibility through controlled wiper operation.A circuit for car windshield/wiper motor speed control built using NE 555 IC.This enables intermittent windshield wiper control which changes sweep rate to 10 seconds.. 🔗 External reference
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