Recent content by PEEng

That's a good point. I started at lower current just trying to understand all of the details like this, but I plan on increasing the current closer to 80 A. I didn't want to start put also having to worry about thermal. This isn't for a product. I'm just working with this as a learning...

The part is CSD19536KTT. I lifted the lower gate pin and shorted it to the source as recommended. There's no difference in the current spike. It changed with Vds and not Ids which is another thing leading me to believe it was a capacitance issue and not reverse recovery. The datasheet provides...

If I remove the fet and have only the schottky, it looks as I expected. Current is flat and there is no reverse recovery. I tried several different schottkys in parallel with the lower fet thinking it was the diode which it may have been. I finally found this one with a much lower forward...

Dave, Thanks for your reply. Unfortunately I cannot post scope photos but hopefully I can explain. As I mention in the response to Tom, I've been pulling my hair out just trying to figure out what's happening for a few days now. I'm using a TI Evaluation board so I'll post the datasheet and URL...

I'm using an evaluation board made by TI. I don't think they did a good job laying it out as it looks like they gate driver IC is a lot further from the devices than they need to be. I'm guessing that's for ease of testing and making modifications like I'm trying to do. The link to the datasheet...

Hi, im fairly new to this so this is probably a straight forward question. I'm usimg a half-bridge basically as a synchronous buck converter. I'm not trying to get any specific conversion ratio at the moment, I'm just trying to understand all of the operating principles. One of the things...