Simple 12v Power Supply Circuit Diagram

But first i wanted to start by creating a simple circuit that converts from the main power voltage 220v or 110v to 5v.

Simple 12v power supply circuit diagram.

This is a schematic of a simple dc 12v 3a power supply circuit using 2n3055 transistor. Figure 1 the simple 12v 2a power supply circuit diagram. Here are 4 simple 12v power supply circuits with output voltages around 12v. The final project i wanted to build was a wall adapter with a usb socket to charge my iphone.

The output current of. I have built many circuits in my life but this is actually the first time i ve built a power supply circuit from scratch. This circuit can be very useful on the places where you want high current like 3a. Parts you will needs.

Leds as you like s1. A lot of 6v supply diagrams. Lm7812 is a three terminal fixed voltage regulator ic comes in to220 package. 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.

5v power supplies digital power supplies. 1 5v 3v adapter usb to 1 5v or 3v converter circuit small uninterruptible ups. Fuse 1a copper wires and nail 0 5inch ac line power. 1n5402 3a diode c1.

First power supply circuit is built with bd139 one zener diode and a few passive components. 12v ct 12v 2a transformer d1 d2. Make 12v dc power supply. Each of the schematic is very simple to construct and will function without problems if you respect the maximum power supply ratings.

Here is a very simple and useful project of a 12v power supply circuit using lm7812 ic. 2 200uf 25v electrolytic capacitor r1. Digital dc regulator if you are looking for 5v dc power supply for the digital. Many ideas of 12v and 5v dual power supply circuit diagram at 3a max.