Power Supply Circuits

This Variable Power Supply Circuit using 7805 or 7812 ICs work like smart adapter. It use chip like 7805 or 7812 which normally gives 5V or 12V and add some other parts like resistor and turning knob like potentiometer. These extra parts help change the voltage up or down so we can set what our […]

Think Simple 3 Ampere Adjustable Power Supply Circuit using IC LM350 is like super cool power adapter for our electronics project. This circuit uses one chip called LM350 it is strong and give very good power. It can give power up to 3 amp and voltage we can change from 1.25V to 25V. So we […]

This DC to DC Adjustable Converter Circuit using IC TL497A works like small helper which can change voltage from power source. It takes low voltage and gives high voltage back like a small power adapter. Good thing is, this circuit can be changed to work in different way and it depends what voltage we want. […]

3V to 24V Variable Power Supply Circuit is like a Swiss knife. One supply does many things. Turn knob to change voltage from 3V to 24V. Circuit is good for projects needing different voltage. There is no need of many adapters just use this one. Circuit Working: Parts List: Category Component Quantity Resistors 3k 1/4 […]

This Simple 3V to 9V DC Boost Converter Circuit is like a hero for battery. If battery is only 3V like from old remote then this circuit makes it strong by giving it 9V as many device need 9V to work good. So if we only have small battery with low power but still want […]

Simple Solid State Relay (SSR) circuit is like ON/OFF switch but with more better and modern. Not like normal switch with moving parts but this one uses special electronics parts like transistor or triac for turning ON or OFF. It works quietly with no noise and last a long time. It is very good for […]