A DC power supply takes AC from the wall outlet, converts it to unregulated DC, and reduces the voltage using an input power transformer. typically stepping it down to the voltage required by the load. For safety reasons, the transformer also separates the output power supply from the mains input. In this project, we will design a simple 3A 12V power supply circuit using a 2N3055 power Transistor.

2N3055 power transistors are a common part of 12V power supply circuits The 2N3055 is a semiconductor NPN bipolar power transistor that consists of three terminals called emitter, base, and collector

JLCPCB is the foremost PCB prototype & manufacturing company in china, providing us with the best service we have ever experienced regarding (Quality, Price Service & Time). We strongly recommend ordering PCBs from JLCPCB

Circuit Diagram

Hardware Components