Posted on May 17, 2011 at 10:19Hi! We are driving MOSFET thru SG3524 pwm driver. When we connect load(Resisitive) to Drain we are getting perfect results. When we connect load to source, 'ON' is working perfectly, but during 'OFF' , Voltage across D...

Posted on May 17, 2011 at 10:19Hi! We are desining a AC-AC chopper using STGF20NB60S. We have connected incadecent lamp as a load. spark is occuirng at IGBT's as an when we switch on AC power Source. Will any body to suggest me to overcome the above...