Build Your Own 5v Power Supply

Transformer after the ac plug we need a step down transformer.

Build your own 5v power supply.

A switch mode power supply smps is an indispensable part of any electronic design. Dual rail variable supply both positive and negative voltages multiple fixed power outputs 3 3v 5v powered via batteries or wall wart. If not then tell. It is used to convert mains high voltage ac to low voltage dc and it does it by first converting the mains ac to high voltage dc then switching.

Build your own 5v 1a adjustable smps using a dead computer atx power supply power. But if you make a power. A switch mode power supply smps is an indispensable part of any electronic design. You could use any other power brick just make sure the brick is able to supply the voltages what your project needs.

There are more efficient and complex power supplies in the world. By debashis das aug 18 2020 0. It is used to convert mains high voltage ac to low voltage dc and it does it by first converting the mains ac to high voltage dc then switching the high voltage dc to generate the desired voltage. It can also work with a two prong ac plug.

Make 5v 3a dc power supply. Add a 5 1 v zener diode we used a 1n4733a in series with a resistor r zener we used a 68 ω and 680 ω resistor in series. The tranformer s job is to take the 120v ac voltage from the mains line and step. Check the water level in the cells often and replenish as needed with distilled water.

We have already made a few smps circuits earlier like. First we need to select a suitable power source i m using a laptop power brick as this is capable of giving me 16 5v and has a power rating of 65w. We add new projects every month. To build a dc power supply purchase a 3 prong ac plug.

But having a 3 prong plug is better because ground provides better against possible electric fires. There are easier ways to get a simple power supply like this one re using a wall wart for instance. One of the main advantages of building your own power supply is the ridiculous cost savings and our power supply will have a number of features including. Add a zener diode and a resistor to your circuit to create a 5v power source and stabilize the voltage even more.

Please tell required spec of capacitors and circuit. Easily buildable on breadboard or stripboard. I want to make 5v dc supply so that i can run 3 dc motors in parallel having spec 5v each and max currrent rating 900ma but i have transformer of 3amp step down transformer 220v to 12v to run lm7805 ic whose max load current is 1a.