I am attempting to use the TOPSwitch as a variable PWM mosfet for design of an AC-DC converter. From the data sheets I was under the impression that after the soft start up varying the input current to the Control pin would vary the duty cycle, but when I tested it I was unable to get the output to switch at all. I am wondering if I'm not properly setting up the soft start, I provided the control pin with up to 100mA of current (in small increments) but nothing seemed to be happening. Any insight into how the control pin functions would be much appreciated.
|첨부 파일||파일 크기|
|Testing diagram, probably not too useful||149.57 KB|