Electronic Schematic Diagram

This is the circuit diagram of TRIAC, SCR and Transistor tester. This is a very simple circuit which can be used for testing of SCRs […]

Here is the USB printer switch circuit design with two USB input ports and one USB output port. This a really simple device that allow […]

This is the digital fan speed control circuit design that can be utilize to control the speed of 220V fans using induction motor. The speed […]

This is the circuit design of unipolar stepper motor driver to control unipolar stepper motors with 5, 6 or 8 wires. It uses four MOSFET […]

This is 500W RMS power amplifier circuit design, build based on MOSFET. The circuit is very popular in EE audio hobbyist as “LEGEND stage Master […]

This is a low cost, simple, yet a surprisingly powerful electronic siren powered by just a 9V battery. The circuit may provide the final circuit […]

This bipolar stepper motor driver circuit will drive a bipolar stepper motor using externally supplied 5V levels for stepping and direction. These usually come from […]