В проекте представлена простая конструкция ШИМ-регулятора, с помощью которой можно легко переделать компьютерный блок питания, собранный на контроллере, отличном от популярного **TL494**, в частности, DR-B2002, DR-B2003, SG6105 и прочих, в блок питания с регулируемым выходным напряжением и ограничением тока в нагрузке.
This PCB is designed to drive five strips with WS2812B LEDs (or their variants) along with a Raspberry Pi (any version) from a single ATX power supply unit.
The five 5V ATX power rails are distributed to the five LED strips. While the data is forwarded between the strips.
The data path starts at the Raspberry Pi, which is connected to the first LED strip. From the end of the firs...
Some HP business class desktops use a proprietary Power Supply with (2) 6 pin connectors
This PCB allows you to cut off the connectors from your current power supply and use a
standard 24-pin ATX power supply
you still need a small 5v to 12v boost converter which can be found on ebay
Note: I had to use a 3-wire fan instead of a 4-wire fan to get rid of the [NO Power Supply Fan] warnings
This circuit uses the Buck/Boost Converter circuit for typically for use in a lab bench power supply. It features both adjustable voltage AND current using potentiometers.
Without a buck/boost converter,a computer power supply can only provide a 3.3V, 5V and 12 supply lines. With the buck/boost converter created with the aid of a 555 timer, adjustable voltage is allowed. A simple transistor is us...