Here is the circuit diagram of active DC voltage doubler which used to increase the DC voltage. This circuit drives…
This document explains about Basic Theory of DC to AC Inverters. Title: "The ABC's of DC to AC Inverters", arranged…
Here is the circuit diagram of 100W audio amplifier which using power transistor BDW83D and BDW84D for the final amplification.…
This is an audio bandpass filter circuit which will filtering the audio frequency from 300Hz to 2500Hz.. The lower and…
This is door knob touch alarm for your home security purpose. The alarm will be activated when someone touch the…
This is a mini fm transmitter circuit. I think this is the simplest one. Simple, easy and of course... inexpensive...…
This easy electronic buzzer circuit built based on timer works for gaining the frequency. The IC timer NE 555 used…
This is the circuit diagram of emergency light included the alarm circuit to show you that there is no power…
This is the circuit diagram of portable mic preamp. This circuit consumes low current supply (about 2mA), so will have…