From: ripe@bellsouth.net   
      
   "Admin"  wrote in message   
   news:2009011111222775249-sowhati@comcastnet...   
   >   
   > Hi all,   
   >   
   > I have this circuit that I am hope to use for HV electrolysis. It has   
   > damaged every Mosfet and IGBT I have tried. It even damaged an IGBT   
   > that is rated 600V and 58 amps. The circuit works without a hitch when   
   > the load is resistive like a light bulb.   
   >   
   > But as soon as I hook up a transformer the IGBT fails in 10 seconds. It   
   > has trouble with inductive loads.   
   >   
   > I have tried clamping the IGBT with a diode to no avail.   
   >   
   > Please, somebody take a look and tell me what I am doing wrong. My   
   > power source is and auto inverter.   
   >   
   >   
      
   The .22uF 400 volt cap should be 330uF 400 volts.   
      
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