Automatic Wiper Control Circuit

A continuosly working wiper is a big problem when it is raining slightly.The wiper control given here makes the wiper to sweep at rates fro...

Car subwoofer filter by TL072

Here is the circuit diagram of a simple subwoofer filter that can be operated from a 12V DC supply. Such a circuit is very useful in automo...

Op Amp NOTCH Filter circuit

Operational amplifiers can be used to make notch filter circuits. Here we show two, a standard notch filter circuit, and another for a twin ...