Part Number:UCC38083
I am interesting to use a PWM IC, UCC38083, and employ it to implement a DC/DC full bridge converter.
Unfortunately, the pulse current of MOSFET is very large as the output short- circuit test,
because I must choose a smaller current sense resistor value and R_Iset value to implement enough slope compensation (The maximum duty cycle is upon 40~43%) for a stable operation.
But it causes the peak current protection insufficient. I do trade-off very hard between a stable steady-state operation and a safe transient-state operation, but I can't do well.
May I ask some suggestion for satisfing both, or use a smart method to do a insufficient and fast peak current protection with enough slope compensation.
Thanks for your patient reply.
Sincerely,
Billy