richiewillmott
New Member
Hi,
I'm looking for some help on this Adjustable SMPS Circuit found on Danyk.cz,
I've built the circuit on a PCB and everything works fine Voltage regulation etc...
But as soon as I attach a load (A 60 Watt 12V Light Bulb) in this case, the IGBTs short out and die, all 3 legs are shorted together.
I tried with 600v Mosfets as well but the same still happens.
It's not on the PCB I designed, but I have soldered RC Snubbers accross the IGBTs
Any Help would be much appreciated.
I'm looking for some help on this Adjustable SMPS Circuit found on Danyk.cz,
![reg60v.png](https://danyk.cz/reg60v.png)
I've built the circuit on a PCB and everything works fine Voltage regulation etc...
But as soon as I attach a load (A 60 Watt 12V Light Bulb) in this case, the IGBTs short out and die, all 3 legs are shorted together.
I tried with 600v Mosfets as well but the same still happens.
It's not on the PCB I designed, but I have soldered RC Snubbers accross the IGBTs
![BX4fHs4.png](https://i.imgur.com/BX4fHs4.png)
Any Help would be much appreciated.