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Hi Kees, I repair commercial amps everyday and rarely find a regulated supply. For an LLC supply using IGBTs at 120khz it is a must...

Hi Kees, I repair commercial amps everyday and rarely find a regulated supply. For an LLC supply using IGBTs at 120khz it is a must...

Hi Bocko, I never used copper foil but If you have copper wire especially for the primary I think it is better. Just remember that the...

Hi there. Nice thread. I am busy with resonance smps for tube hybrid, it is a LCC because it is a supply for tube drivers and pre-amp...

Hi there. Nice thread. I am busy with resonance smps for tube hybrid, it is a LCC because it is a supply for tube drivers and pre-amp...

hi all Jagd ,here is my updated version , just wondering whether you can draft where i can place the feedback . and also will it make...

The key part of any electronic device is the power supply. Any instability or malfunction of the power supply part causes the device to...

Hello, I have not been there for a long time. I now own a pretty nice digital scope and truth is open to me - my gdt is very slow even...

What is ETD70? Never heard about such cores. If you are after few kW's SMPS look at welding inverter's schematics. They are very robust

I tried with EEL 19 cores salvaged from ATX PSU. Leakage inductance was kind of high so I opted for a toroid core instead. EMI filters...

You picked up wrong drivers. Check post #99, there is an example of the driver with negative bias (I put there parasitic elements you...

Also it's a good idea to install 15-18v zeners back-to back to protect the gate (connect them to source of the mosfet and emitter of...

Post schematic/pic How many of these do you have? Are you ready to buy extra IGBTS when yours blow up (that could happen)? Are you set...

I also used to chat a lot on messenger with Andrew Lebon. He was a good man, and we used to chat on all sorts of things about our...

That`s too big for GDT, but you can test it. I will try to show my GDT + Some waves, will try