Guest mdarrer Posted May 28, 2003 Share Posted May 28, 2003 Hi everyone, I have a problem at the moment with a PWM Controller (IC) uc3844 and I am wondering if anyone out there has any experience with them. I am using it in a Flyback converter Power supply circuit to switch a Mosfet but I am having great difficulty getting it to switch. it seems that the Voltage feed back is getting 2.5V which is max through the chip but it is meant to be an input not an output. i think that the Error amp inside is fried but any help on the situation would be greatly appericated Cheers, MD :confused: Link to comment Share on other sites More sharing options...
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