Скачать или смотреть Turn Computer ATX Power Supply Into Adjustable Voltage 1V To 30V

A switched-mode power supply ATX (SMPS) is an electronic circuit that converts power using switching devices that are turned on and off at high frequencies, and storage components such as inductors or capacitors to supply power. uses microcontroller / Ic to oscillate - most common IC is the TL494 or KA7500 - That are suitable for modifications it has many pins but the pin no 1 is used as feedback by voltage devider. So we will use pin 1 and a potentiometer ( 5K to 25K ) To adjust the voltage . if you think wow i can adjust it from 0v to 30v . thats not right . you need to use 3v rail 5v rail and 12v each rail gives different voltage like 12v rail will give 8v to 15v but if you use 12v+ and 12v - you will get 9v to 30v

warning
-[ before powering the atx please use a 100 watt lamp ]

tags;
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