DIY power supply

Now we have to stay at home. Boring. The housing with the power transformer became free. While wondering what to do with it, I decided to do a long-standing project. Although I have a similar device, I will make more. I will make a charger for lead batteries

I decided to remake my laboratory power supply. Although it is reliable, it is heavy and takes up a lot of space. There is never enough on the desktop. Planning a reshuffle. I decided to hang a wall shelf and there is plenty of space under it. The idea came quickly, I do it

An adjustable power supply is a necessary thing. In general, I think there should be a sufficient number of power supplies. For small needs, my father needed an adjustable power supply. Having studied our deposits, we collected a number of components. I decided to collect

In this article I want to share with you my experience in creating switching power supplies. We will talk about how to assemble a switching power supply using the IR2153 chip with your own hands. The IR2153 chip is a high voltage driver

There was a need to charge the car battery. You can take LBP, but I use it in the workshop. I decided to build a charger for the garage. Thinking through the design, I decided to focus on redesigning the computer's power supply.

Every person who assembles electronic circuits needs a universal power source that allows them to vary the output voltage over a wide range, control the current, and, if necessary, turn off the powered device. Similar in stores

I decided to make a multi-voltage power supply from a computer power supply. There are many designs on the World Wide Web. China also has ready-made solutions, such as attachments for a computer power supply. I, having collected a certain amount

Many of us have accumulated various power supplies from laptops, printers or monitors with voltages of +12, +19, +22. These are excellent power supplies that are protected against both short circuits and overheating. Whereas in home, amateur radio

I have a regulated power supply.Only voltage is regulated; therefore, there is no current regulation. For some purposes it is enough. I decided to assemble a unit with current and voltage regulation. Laboratory power supply, hereinafter referred to as LBP, is very

To power various electronic devices and DIY circuits, you need a power source whose output voltage can be adjusted within a wide range. With its help, you can observe how the circuit behaves under one or another

When you repair a computer power supply or perform modifications, you need to constantly take voltage measurements. It is also sometimes necessary to measure resistance using output voltages. I decided to assemble an adapter device between the power supply and

When you assemble any electronic homemade product, you need a power supply to test it. There is a wide variety of ready-made solutions on the market. Beautifully designed, have many functions. There are also many kits for DIY production. I'm already not

When creating various electronic devices, sooner or later the question arises of what to use as a power source for homemade electronics. Let's say you've assembled some kind of LED flasher, now you need it for something

Good afternoon, dear readers! Today we will build a simple power supply for low-power loads. Let me make a reservation right away: the power of the circuit can be increased, but more on that later.

As you know, no electronic device works without a suitable power source. In the simplest case, a conventional transformer and a diode bridge (rectifier) ​​with a smoothing capacitor can act as a power source.

Hello, today I will tell you how to make an adjustable power supply based on lm317 chips. The circuit will be able to produce up to 12 volts and 5 amperes.

How to charge a cell phone using a candle? It’s very simple - for this you can assemble a simple thermal power plant from just a few very affordable elements. This little thing is pretty cool, you can take it with you on a hike or fishing trip.

This master class will be a little controversial and will cause more than one disparate opinion. I want to share how to make a powerful rectifier from a microwave oven transformer - a power supply for the voltage I need. Very often microwaves

Hello! This is my first instruction! We are all surrounded by electrical appliances with different specifications.Most of them operate directly from a 220 V AC network. But what if you come up with some non-standard device, or

Good day to all! Today I would like to present to your attention the Laboratory Power Supply (LBP). I think every beginning radio amateur is faced with the problem of obtaining the necessary voltage for one or another of his homemade products, because every

Video cameras, like cars, have now ceased to be luxury items and have become necessary devices. But, if the video camera itself is made with high quality and its failure without any external reasons is an infrequent phenomenon, then with

Every motorist sooner or later has problems with the battery. I did not escape this fate either. After 10 minutes of unsuccessful attempts to start my car, I decided that I needed to purchase or make my own charger. In the evening

On one of the amateur radio sites I saw a circuit for charging portable Ni-Mn and Ni-Cd batteries with an operating voltage of 1.2-1.4 V from a USB port. Using this device you can charge portable batteries with a current of approximately 100

I bought myself a car six months ago. I will not describe all the modernizations made to improve it, I will focus on only one.This is a 12-220V inverter for powering consumer electronics from the vehicle's on-board network. Of course it would be possible