Hi engineers,
I use UC3846 to implement push-pull application, the present question is that Vin1 powered down, pin11 and pin14 duty ratio is 40%; Vin powered on, the duty ratio is very small, only about 5%, above the two situations the duty ratio can not be adjustable. Please help to give some support, the schematic as illustrated.
Thank you very much!
Best Regards,
Jenny