This is the schematic diagram of DC motor speed controller circuit. The circuit applies two oscillators/timers which are connected as…
Here the project report of DC/AC pure sine wave inverter. This report focuses on DC to AC electrical power inverters,…
This is a very simple adjustable analog timer circuit diagram. You can build this circuit just for fun, for newbie…
Here the simple Mini UPS circuit diagram. This circuit can provide an uninterrupted power supply (UPS) to operate 12V, 9V…
This is the circuit diagram of automatic light controller which use 78xx voltage regulator IC series. The voltage regulator ICs…
This is the schematic diagram of LPG gas leakage sensor alarm. The circuit operates off a 9V PP3 battery. Zener…
The circuit, consisting of an infrared transmitter-receiver pair, utilizes IR beam transmission to switch the toy car "on" or "off',…
This is the circuit diagram of laser communication system that transmit the sound or music signals by way of a…
The above diagram is the schematic diagram of an electronic motor starter circuit. This motor starter protects singlephase motors against…
This is the very simple circuit diagram of 150W power amplifier. The circuit is easy enough to built without PCB.…