Power supplies

Recently made an interesting LED lamp from a set of small LEDs. Regarding the price, it came out less than the store, with almost the same brightness. The lamp housing is simple but stylish, here

They finally arrived, just like that, you didn’t hear it - an inverter without transistors, and even without double, symmetrical transformer windings! "How can we feed the whole nation when we have only one

Hi everyone, when replacing the batteries in the battery with lithium, there are still quite working batteries, such as this one for 12V. From this battery, you can make a pretty decent charging station for

A charger for acid batteries has been covered, buying a new waybill comes out. I decided to make from what is, but there is a 120 W universal power supply with voltage setting. But

Hello everybody. The prices for drivers for LEDs have risen, we are learning to make them yourself. To power a three-gated LED, I ordered PT4115 chips. There is also one penny printed circuit boards on

A radio amateur, and especially a master, cannot do without LBP. Only here the prices bite. I propose my own version of a budgetary and easy to repeat laboratory technician: For this, we need:

I have a cheap 14.4v screwdriver. The power supply of this charger with a primitive circuit for 18V, 300ma. When charging the battery, its heating was sensitive. Measured voltage during charging and

Good to all! When he wrote a shameful opus: Charging for a screwdriver from what it was, the people rightly called: “From the description it’s hard to understand anything, some fragmentary set of words and photos

IPS-1 modernization. I fell into the hands of the rarity of Soviet times IPS-1 Power supply IPS-1 - a successful product of the Soviet industry. Adjustable 0-15V (2-15V this modification) source with

I welcome all visitors to the site and who decided to look at my article. Electricity today is the most important element of our life. All appliances are now powered by electricity, be it

I got something like this on the occasion of such a night vision device. Relative garage when moving and dismantled gave. PNV-57E is called. Of the first, probably, dad told me how in the army with such

I bought a budget screwdriver "Dyold". Charging: Transformer, diode bridge and 2 LEDs; it charges like an iron when charging. I decided to collect a charger for my new friend ... Internet to help, first

One day, looking into a neighbor’s garage, I noticed among the various chaos and disorder two radios from the WEF series, which were casually lying on the rack, and a little further away was a Chinese cassette

Good day or evening! In this article I want to introduce a portable charger with the ability to adjust the output voltage from 12 to 35 v. This device was manufactured for