Design Of Car Wiper Speed Controller

Mohammad Zul Aizam , Mazlan (2009) Design Of Car Wiper Speed Controller. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The main objective of this project is to design and develop a wiper speed controller. In this project, wiper speed controller will be explained. It will describe the discipline where some of power electronic methods are developed that attempt to emulate the important characteristics of human intelligence. A continuously working wiper in a car may prove to be nuisance, especially when it is not raining heavily. By using the circuit described here, one can vary sweeping rate of the wiper from once a second to once in ten seconds. For this project, two timers are used namely NE555 IC1 and NE555 IC2, one decade counter is also used namely TIP32 driver transistor, a 2N3055 power transistor and few other discrete components are also used. A pulse will be produced by a timer that is acted as a monostable multivibrator and then this pulse acts as a clock pulse for the decade counter. Then the output of the timer is applied to PNP driver transistor for driving the final power transistor which in turn drives the wiper motor at the selected sweep speed. The power supply for the wiper motor as well as the circuit is tapped from the vehicle‟s battery itself.

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