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where will be short circuit?Hi,
the problem is that you connected two individual nodes with "GND" --> short circuit
Why the FET?
Why not sensig referenced to 220V_GND? (Why high side referenced?)
Klaus
but GNDs in first side and second side of tlp must be different,(lpc has one supply and tlp has another one for itself).Hi,
impossible.
--> The LPC is referenced to GND2...it can not output PWM to TLP which is referenced to GND1
--> Voltage measurement is referenced to GND1.. you can not connect it to ADC od LPC which is referenced to GND2.
Klaus
What exactly are you attempting to do?
What is the purpose of the FET? Why the high side voltage sensing? Why the weird transformer connection? (or is it a coupled inductor).
this is a LED driver
Hi,
LEDs seem to be harmless. But with your non isolated supply they may hurt and/or kill people.
--> I strongly recommend to use an "isolating" power supply ... and if you really want to build it on your own you first have to go through the safety regulations of your country. And for sure follow them.
Don´t hurt or kill yourself or others!
Klaus
Own circuit or not .... in any case you are reliable for safety.but this is not my own circuit
:clap:thank u for ur advice;
but this is not my own circuit,
https://ieeexplore.ieee.org/document/6755501/
i have designed an isolated one before,but not published yet.