Power Supply Circuits

This Stable 5V 3A Power Source Circuit using IC LM350 is to make stable 5V 3A DC output from AC mains. It use transformer, bridge rectifier, filter capacitors and LM350 adjustable regulator. LM350 can give up to 3A current which is good for microcontroller, charger, LED strip and many circuits. The unregulated power supply works […]

This Simple IC L7660 Dual Power Generator Circuit makes dual power from single 5V input. It gives +5V and -5V output. It is useful for op amp circuits, analog circuits and small signal circuits. The design uses ICL7660 voltage converter IC. The circuit is simple and uses only two capacitors. Circuit Working: Parts List: Component […]

This 5V 3A Linear Power Supply Circuit is very simple for one to give it a try. It uses only LM323K IC and few more parts which are easily available. It gives 5V fixed output and can handle load up to 3A. Circuit Working: Parts List: Component Specification Quantity Capacitors Electrolytic 4700uF 25V, 470uF 25V […]

Many electronic projects need 12V clean power for output devices like LCD, graphic LCD and DC motors. A simple AC to DC converter using 7812 regulator. It provides fixed 12V for small devices and general use. Big 100uF capacitor remove big AC ripple from rectified DC. Small 0.1uF capacitor remove small ripple from regulated output. […]