Mastodawn

Continuing on the "Hangell" switching bench power supply I received a few weeks ago...

I mentioned there was some switching noise visible on the output - not a lot, but more than I'd ideally want. Today I built a filter for its outputs, with a large-ish common-mode inductor/choke rated 10 mH (accurate enough, though my meter says it drops to about half that at 100 kHz) sandwiched between a couple of 1 μF class X2 safety capacitors.

It seems to have done the trick. Under a moderate load, all the random hash has disappeared, leaving only some spikes at the switching frequency, and those are much smaller than they were before. The RMS noise value is now (barely) under 1 mV, if you believe my cheapish oscilloscope.

Like a lot of switching supplies, there's a lot of open space in the chassis, so I had room to squeeze the filter inside. I'm pretty happy with it!

Now to see if this no-brand thing works for any length of time.

#YumCha #SMPS #PowerSupply #SwitchModeSupply #Hangell #bench #workbench #noise #filter #electronics #hobby

Phos Feb 21

building and experimenting with a mock Peak Current Mode Controller similar to the ones found in buck converters, with just an op-amp and SR latch!

This is such a fun exercise, and lets you get hands on with PCMC type control at a more human timescale

https://youtu.be/wZyIUIjUAuU

#electronics #smps #powerelectronics #opamp

Lone Soldier Feb 11

It's time to change some #smps On Feb 11 Wednesday 2026

#retiredstudent #soldier #soldier1375 #lonesoldier #freegames #frankquotes #shorts #reels #tiktok #game #gaming #gameplay #console #consolegaming #ps #playstation #xbox #nintendo #nes #gameboy #retro #pc #pcgamer

13 Jan 18

Calculating the Capacitance and ESR Specifications for the Output Capacitor in Your Switching-Mode Power Supply https://hackaday.com/2026/01/18/calculating-the-capacitance-and-esr-specifications-for-the-output-capacitor-in-your-switching-mode-power-supply/
#Hardware #Equivalentseriesresistance #ESR #Outputcapacitor #Smps #Switchingmodepowersupply

Calculating The Capacitance And ESR Specifications For The Output Capacitor In Your Switching-Mode Power Supply

[Dr Ali Shirsavar] from Biricha Digital runs us through How to Select the Perfect Output Capacitor for Your Power Supply. Your switching-mode power supply (SMPS) will require an output capacitor bo…

Hackaday

Open Power Electronics Jan 16

How to calculate the voltage undershoot (ΔVo) of an SMPS during a load step (ΔIo)?

ΔVo = ΔIo/ (2π fc Co)

where
fc = Cross-over frequency of the control loop
Co = Output capacitance

#SMPS #DCDC #DynamicLoading

e_es Dec 31

Schaltnetzteiltopologien, switched mode power supplies #smps

https://ww1.microchip.com/downloads/en/appnotes/01114a.pdf

#todo

windowsCult Oct 22

A #computer has two main parts: #Hardware and #Software. Hardware refers to the physical components, and Software is the set of instructions and programs that tell the hardware what to do. https://windows101tricks.com/parts-of-computer/
#CPU #Motherboard #RAM #HDD #SSD #SMPS #Graphics #Tech #technology #PC #Laptop

Habr Sep 26

Проектирование импульсных источников питания: ключевые параметры и распространенные ошибки

В этой статье мы рассмотрим проектирование импульсных источников питания: ключевые параметры и распространенные ошибки. Импульсные источники питания (SMPS) стали стандартом в современной электронике благодаря высокому КПД, компактности и гибкости применения. Однако их проектирование связано с рядом сложностей: от правильного выбора топологии и компонентов до грамотной разводки печатной платы и обеспечения электромагнитной совместимости.

https://habr.com/ru/articles/950654/

#smps

Проектирование импульсных источников питания: ключевые параметры и распространенные ошибки

Импульсные источники питания (SMPS) стали стандартом в современной электронике благодаря высокому КПД, компактности и гибкости применения. Однако их проектирование связано с рядом сложностей: от...

Хабр