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

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 …

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 …

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.

Mar 17, 2022 · Hi everyone, I was wondering if anyone can help me decide between SMPs. I recently got accepted to both Georgetown 1-year SMP and NYMC 1-year accelerated SMP, and was …

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 …

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 …

Mar 2, 2021 · Hello all, I have the following 12V center-tap transformer with below number of turns, I used (Np/Ns = Vp/Vs) to calculate output but i didn't get 12V although transformer specification says …

Mar 4, 2023 · on a SMPS that has MOSFETs and other transistors, with the board remover from the power supply to discharge the power capacitors or any capacitor on the board by grounding the two …

Mar 31, 2025 · hello, I was trying to build SMPS using switching ic's UC3845 or HVLED007 but ending with less current delivery or poor power factor might be due to improper flyback transformer design. …