Other Parts Discussed in Thread: UCC27712
Hello, TI experts!
I am designing an ACF converter based on UCC28780 and UCC27712.It was supposed to make a converter for an output voltage of 24 V, a maximum power of 80 watts.
I ran into an error triggering problem, presumably OPP.
RM8 (TDK) is used as the transformer core, namely B65811J0250A087, winding 20: 5: 5. The problem is that I observe the saturation of this core at a switching frequency of 2 kHz, which is why I suppose the OPP is triggered.
How can this problem be solved? Or is this considered normal operation?
Also the UCC27712 fails often, I get LO of no more than 2.25 volts.
Thanks in advance for your answer!
If necessary, I am ready to provide a schematic and a design calculator.