Oct 13, 2013 · A centre-tapped primary on the GDT would only make sense (to me) if the outputs A,B of the SG3525 were open-collector. But they're not: they're push-pull, able to sink and …

Nov 19, 2024 · There's often been mention of the price of PCB's from the Chinese manufacturers, in this case JLC PCB. Now while the boards are cheap (and excellent quality), the cost of …

Aug 19, 2014 · 4) The GDT The "Gate Drive Transformer", or "GDT" for short, is used to drive the gates of the IGBTs. It serves as an isolation transformer which prevents nasty kickback into …

May 24, 2017 · DS202 is the model. The problem I'm having is to see my GDT Waveform correctly I need to ground on one output and probe the other on each separate coil. Now the …

Nov 30, 2019 · Somehow I thought this was a push pull, but its a 2 trans forward, the gdt is wired in phase so both trans's are on at the same time. D7 and D7' conduct when the igbt's are off to …

Apr 1, 2014 · Thanks DerStrom! you where right the GDT coils where not reversed! fixing that allowed me to get a very small output. Heres a video showing the complete setup, i also have …

Feb 29, 2020 · That all said, you can look into other devices like GDT (Gas Discharge Tubes), which act on short impulses and present a dead short (almost). Once they fire, the residual …

May 31, 2009 · Also, Q2 and Q3 need to have their signal inverted and that's quite easy, you just take it from the opposite side of the gdt. It's standard on all full bridge schematics but hopefully …

Sep 19, 2015 · Hi everybody, I have repaired a UV water treatment unit, it´s Idromar SH-5000. It had PFC circuit damaged (TD4862, 2 x 1 ohm resistors, bridge rectifier, 1N4148, IRF840, …

Aug 13, 2015 · If you want to step up the voltage than you can use a gate drive transformer, you could use such an item with the gate driver ron mentioned, you get step up and isolation with a …