DIY. A Simple Power Supply. Vin Marshall. There are more efficient and complex power supplies in the world. There are easier ways to get a simple power supply like this one (re-using a One would expect that a power supply for a 400W amp, would be capable of well over that to keep the peaks from distorting. A 10A transformer at 24V is only 240W. Hey guys, welcome to my channel .Today we are going to see about, how to make a 24 variable dc power supply at home using a old ups transformer. How make a dual +-12V supply from a 24V SMPS. Asked 5 years ago. Modified 2 years, 7 months ago. Viewed 14k times. 18. I'm trying to power a home-made load cell transmitter using a 24V single SMPS. I need to make +12, 0 and -12 Volts that are capable of 50mA. I wish to power multiple channels of opamps and bridges. 24V Transformer. Full Wave Bridge Rectifier. LM317 Voltage Regulator. Heat Sink. 2200μF electrolytic capacitor. 100μF electrolytic capacitor. 240Ω Resistor. 3.6KΩ Potentiometer. DC Power Supply Schematic Diagram. Above are the parts needed to create a DC power supply. The following components are required to make a 24V Adjustable Power Supply Circuit. LM317T Pinout. For a detailed description of pinout, dimension features, and specifications download the datasheet of LM317T. 24V Adjustable Power Supply Circuit. Working Explanation. 5 Answers. Sorted by: 19. You can open the supply and look for the TL431 chip. There will be two resistors forming a voltage divider from the 5V rail to the 2.5V that the TL431 compares against. If you calculate the right resistor values, you can set this divider to output half the voltage it currently does. how to make 24v DC power supply. for making this project we need some components. Components for making 24v adapter: 12-0-12 or 24V 1 Amp Transformer. LM7824 Voltage regulator. Heat sink. 50v 1000uf capacitor. 1N4007 Diode (4) LED. 1K 1/4W Resistor. PCB Board. Soldering wire. Soldering iron. Circuit Diagram of how to 24v dc power supply: in this video we learn How to make 24v power supply with transformer easy at home. its very simple and homemade project. make easy step by step with circuit diagram. Watch More Related Well, what you get when done is a 24 Direct Current (DC) Power Supply (PSU). Parts list: 2* XXXX W ATX power supply. Pliers/knife. A good length of mains cable. Scrap wood or what you think is suitable. Common tools (screw driver/hammer, saw, nails/screws and so forth) Soldering iron with accessories or alot of male/female connectors. Nice to GYqBG8.