IGBT Pack and Drive Pin Diagram

So if anyone runs into an IGBT pack from a York Chiller I’ll do you a solid and give you a pin diagram. York part number: 031-02061-001 The connector is of this style (p/n from package, I forget which side): 1-794223-0 http://www.digikey.com P/N: A100435CT-ND .. using this you can find both pieces. .. all TTL…

Killed my IGBT pack & driver

What a rookie mistake… My variac is grounded… I’ve gotten too spoiled by working on a lot of isolated 24VAC circuits lately… One little check with the scope and boom. PCB death… So much for my one-of-kind short cut. I suppose I need to invest in one of those sets of isolated probes. Silver lining…

IGBT EconoPACK test for my homebrew variable frequency drive.

I mocked-up a test of my IGBT Infineon EconoPACK. I had a 24VDC to 95VDC 200w boost brick and fed the IGBT that just because… It made a nice isolated power supply. After I got everything together I feared I had gotten a bad module, but because I know myself I went over everything and…

Variable Frequency Drive Shortcut

I’ve had a project sitting on the back burner for quite a lot of time, really an embarrassing amount of time. It’s been a good 3 or 4 years since I started a yet unfinished variable frequency (speed) drive. I plan to drive a 3 phase AC motor for another project later to be reviled.…

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