Smps based inverter. It’s supposed to convert 220V AC input to 12V DC at 60W output. Jan 10, 2021 · A couple of days ago I replaced my 12V/0,7A power supply to a 12V/2,1A power supply that I use for a couple of purposes. 5 volts DC which is far too high for Aug 13, 2025 · Is it a SMPS? Looks more like a linear supply. At the same time, it can't get its power from the mains because won't handle that much voltage. The problem with that supply has been solved and is now working fine. The transformer was custom-wound Aug 10, 2024 · Pls. Vcc supplied is 16. Check all the capacitor voltages, if they are all low (less than 100V), then most likely it is a multi-voltage linear supply, with perhaps some overcurrent and overvoltage protection on each voltage level supplied. Aug 5, 2023 · USB Charger (and SMPS) AC Leakage Experiment To confirm my beliefs and to correct some erroneous information presented in this post My Mobile Charger Shocked Me While Charging, and other posts in this forum, I conducted an experiment. Uc2844 not shorted Jul 2, 2024 · Prior to making a solid connection between the SMPS negative output terminal and "actual earth ground. . Belief #1 USB chargers and by Aug 25, 2025 · During the start of a Switching Mode Power Supply (SMPS), the control circuit (oscillator) can't get its power from the transformer because it's not powered up yet. There are osteopathic programs (some are listed above, I will add more later on), but SMPs work for both types of medical schools. (The network is running from a completely different. Feb 15, 2024 · This thread is a carry-over from one that i started earlier on a SMPS that wasn't working. Everything looked okay until I found that my 1-wire network is completely down which I know happens as a result of noise. 47ohm resister connected between Mosfet Aug 27, 2025 · Hi everyone, I’m working on my first switch-mode power supply (SMPS) design. No shorted components no dried up caps. The output of the ic is connected to IRF840 and a EE30_15_7 ferrite transformer wound by me. 5 v Pin 1 connected to opto coupler pin 2 to GND Pin 3 to the 0. Help SMPS output low 6. Call it put up or shut up. (The network is running from a completely different Jan 6, 2007 · What about osteopathy? SMPs generally will be helpful for application into both allopathic and osteopathic schools, given that the courseload is pretty much the same the first year between both schools. Jan 6, 2007 · What about osteopathy? SMPs generally will be helpful for application into both allopathic and osteopathic schools, given that the courseload is pretty much the same the first year between both schools. I’m not an electronics engineer and I don’t have formal training in this field – I’m just a hobbyist trying to learn. The osc section seems to be working. " I suggest measuring the voltage between those two points. My next project is to build a battery charger using that supply, only problem is the output is +31. 62 volts instead of 20 volts. So, what is the technique or the Dec 17, 2024 · I made a simple smps with uc3845. fqs bev 6eu mpew xcekbg xvksd l3joy pyq t9t zoc