Simple 12v Power Supply Circuit Diagram

This is a schematic of a simple dc 12v 3a power supply circuit using 2n3055 transistor.

Simple 12v power supply circuit diagram. This circuit can be very useful on the places where you want high current like 3a. Simple dc regulators 12v 15v 30v. A lot of 6v supply diagrams. 1n5402 3a diode c1.

2 200uf 25v electrolytic capacitor r1. Each of the schematic is very simple to construct and will function without problems if you respect the maximum power supply ratings. It is very difficult to find that type of regulated ics which deliver that high current so this circuit will work on the places where. Leds as you like s1.

Fuse 1a copper wires and nail 0 5inch ac line power. The final project i wanted to build was a wall adapter with a usb socket to charge my iphone. 12v ct 12v 2a transformer d1 d2. Parts you will needs.

Here are 4 simple 12v power supply circuits with output voltages around 12v. First power supply circuit is built with bd139 one zener diode and a few passive components. I have built many circuits in my life but this is actually the first time i ve built a power supply circuit from scratch. 1 5v 3v adapter usb to 1 5v or 3v converter circuit small uninterruptible ups.

The output current of. Here is a very simple and useful project of a 12v power supply circuit using lm7812 ic. Make 12v dc power supply. 1 2k 0 5w resistors led1.

But first i wanted to start by creating a simple circuit that converts from the main power voltage 220v or 110v to 5v. Many ideas of 12v and 5v dual power supply circuit diagram at 3a max. 5v power supplies digital power supplies. Figure 1 the simple 12v 2a power supply circuit diagram.