Dec 6, 2022 · Switch Mode Power Supply (SMPS) Repair - Low output voltages whilst under load.

Dec 17, 2024 · For the SMPS stuff, a 100MHz CRO is usually good enough and there are some newer CROs around that have mutlichannel digital inputs you can use for all manner of digital circuit tests …

Dec 17, 2024 · I made a simple smps with uc3845. The output of the ic is connected to IRF840 and a EE30_15_7 ferrite transformer wound by me. The osc section seems to be working. Vcc supplied is …

Jul 2, 2024 · Prior to making a solid connection between the SMPS negative output terminal and "actual earth ground." I suggest measuring the voltage between those two points.

Nov 1, 2007 · Very often when I attempt to repair electronic devices, either mine or from friends, I find out the problem is with the power supply which these days is most often a Switched Mode Power …

Nov 8, 2024 · I'm trying to turn a Boost into a Flyback and then into an audio amplifier. Basically I wanted a simple SMPS modulated with an audio signal. I know, you will say that the class D amplifier …

Jun 3, 2022 · Hi, I'm searching for an example circuit to be run on LTSpice with a SMPS together with a common mode choke. The idea is to run a transient simulation in order to see the effect of this latest …

Oct 15, 2025 · This is an SMPS (12 Volt, 10 Ampere) from the company HIKVISION. Someone gave it to me for repair, but I don’t have much experience in this kind of work, and I’ve never fixed one …

Jul 8, 2020 · It probably (hopefully) doesn't need to be said, but don't go probing the hot (mains) side of a SMPS with a normal scope probe as its typically 400+ volt above the incoming neutral rail. You will …

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, …