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. 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. The power supply, which comes as a kit with THT type components and a PCB (so its easy to solder), takes in 24V AC supply at its input and gives between 0-30V at its output depending on user input via an onboard potentiometer. The module is able to supply up to 3A current and is equipped with safety features that help prevent overload and shorts. 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. 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 How to make 24v power supply without transformer - easy step by step with circuit diagram. 5. How to convert AC to DC 2 simple way 220 v to 9,12,24v. 6. How to make 24 Volt Dual power Supply. 7 .

how to make 24v power supply