SMPS with UC3845 - All About Circuits
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 …
I want to turn a Boost SMPS into the simplest audio power amplifier.
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 …
SMPS with UC3845 | Page 3 | All About Circuits
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 …
USB and SMPS Leakage Current - All About Circuits
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 …
Providing the earth ground to the DC output of SMPS
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.
SMPS set to output 12.81V (it is laptop 20V power supply), but it ...
Feb 19, 2025 · I have an SMPS set to output 12.81V (it is laptop 20V power supply), but it fluctuates between 12.2V and 12.8V at idle, which is around 6%. It stabilizes at 12.81V under …
Designing flyback transformer for SMPS | All About Circuits
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 …
SOLVED - SMPS - UC3842 ULVO issue - All About Circuits
Sep 26, 2024 · Background I'm repairing a monitor with a SMPS utilizing a UC3842 IC. I've tested the monitor in my shop and worked fine. When I get to the customer's site, it wouldn't startup. …
SMPS output low... 6.62 volts instead of 20 volts. - All About Circuits
Aug 10, 2024 · Pls. Help SMPS output low... 6.62 volts instead of 20 volts. No shorted components no dried up caps. Uc2844 not shorted...
How well do you understand SMPS circuits? - All About Circuits
Jul 16, 2025 · Picked up a 50 inch Onn Roku TV someone threw out. Tested components on power supply (with multimeter). Fuse, bridge rectifier and MOSFET are bad.(Bridge …