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PSU

A power supply is an electrical device that supplies electric power to an electrical load. The primary function of a power supply is to convert electric current from a source to the correct voltage, current, and frequency to power the load. As a result, power supplies are sometimes referred to as electric power converters. Some power supplies are separate standalone pieces of equipment, while others are built into the load appliances that they power. Examples of the latter include power supplies found in desktop computers and consumer electronics devices. Other functions that power supplies may perform include limiting the current drawn by the load to safe levels, shutting off the current in the event of an electrical fault, power conditioning to prevent electronic noise or voltage surges on the input from reaching the load, power-factor correction, and storing energy so it can continue to power the load in the event of a temporary interruption in the source power (uninterruptible power supply).

Dual +5 V/-5V @ 200 mA Regulated Linear Power Supply

“The project presented here is a dual AC to DC output linear power supply. This power supply provides low ripple low noise DC regulated output. Usually, transformer-based linear power supplies are considered very bulky and inefficient, but this power supply …

DIY Dual Channel Variable Lab Bench Power Supply 30V 10A 300W

“A bench Power supply is a very important piece of equipment that every electronics hobbyist can own. It helps to limit the voltage and current. That is mandatory when were testing circuits, charging batteries, and testing components, as well as …

DIY Variable Isolation Transformer

“Let’s clear one thing first. This is not a “Step by step -How to” guide to make your own variable isolation transformer. This is just me sharing my work, comments and ideas while building a piece of much needed …

Mini Regulated Power Supply Unit

“I’ve always been attracted by compact instruments, and I love to buy electronics kits and build small and pretty devices.Years ago I bought a regulated power supply unit (PSU), which has the interesting feature to vary current intensity …

Micro Breadboard Power Supply

“A small Micro USB connected power supply that is designed to fit onto the power rails of a standard solderless breadboard. Inspiration While working with some of the more common breadboard power supplies that are available, I was always wanting …

Variable Breadboard Power Supply

“Power supplies are the most basic tool every DIY / maker / electro-enthusiast should have. While the lab bench power supplies are great but you can’t carry them everywhere and that’s why you need a portable power supply, but they …

2x 48V 5A Bench Top Power Supply

“This is a tutorial for assembling a bench top power supply. Don’t expect any electronics development or lots of soldering, I just ordered some parts from AliExpress and put them in a box. Please beware that I made some …

DIY Mini Lab Power Supply

“A bench power supply is extremely useful for electronics hobbyists, but they can be expensive when purchased from the market. In this Instructable, I will show you, how to make a mini-lab power supply with a limited budget. It is …

Small Portable Variable Power Supply

“Idea is to make small cheap portable variable power supply for hobbyists. It main purpose is to test some electronic components or to power some projects in their early development or for POC stage. Parts used in project are: - Digital …

USB-C Powered Bench Power Supply

“A bench power supply is an essential tool to have when working with electronics, being able to set the exact voltage your project needs and also being able to limit the current for when things go to plan really useful …