Author Topic: 2 channel isolated testbench power supply  (Read 682 times)

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Offline bogdantTopic starter

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2 channel isolated testbench power supply
« on: November 14, 2019, 06:24:57 am »
I am trying to design a 2 channel liniar power supply: 0-30V, 0-2A. I have a STM32 used to measure current and voltage. My question to you is: If I have separate gnd_ch1 and gnd_ch2, what topology is used to measure current and voltage but the supply to remain isolated.
 

Offline rvalente

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Re: 2 channel isolated testbench power supply
« Reply #1 on: November 14, 2019, 11:31:50 am »
For each measurement go with a uc. Suplly them with a flyback power supply with multiple secondaries (or use a off ghe shelf brick). Feedback de values with an photocoupler.

Check the isolated channel scopes service manual for inspiration.
 
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Offline xavier60

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Re: 2 channel isolated testbench power supply
« Reply #2 on: November 14, 2019, 01:39:46 pm »
« Last Edit: November 14, 2019, 06:09:51 pm by xavier60 »
HP 54645A dso, Fluke 87V dmm,  Agilent U8002A psu,  FY6600 function gen,  Brymen BM857S, HAKKO FM-204, New! HAKKO FX-971.
 
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