Hey everyone... I've gotten my hands on an hifonics bxi4000d. It had some shorted output fets wich i have already replaced. It now powers up fine and doesnt go into protection anymore. However now whenever the output relays switch the output on, i get -83V on the output terminals. My suspicion is that the Gate drivers are dead.... The signal they give to my mosfets is Sometimes -12v or some horrible square wave with a huge dc offset. Sadly the markings of the driver ics are scraped off... Does anybody know what drivers hifonics might be using? Thanks in advance!
Kind regards,
Karl
Kind regards,
Karl