Other Parts Discussed in Thread: UCC256403
Tool/software:
Hello.
I'm planning to design an LLC resonant converter using UCC256403. For initial testing, I bought UCC25640EVM-020 and followed the user guide to do some tests.
However, no output is produced when AC 220V or DC 380V inputs are applied.
Upon checking the attached schematic, we found that the bridge rectifier (D10) output is connected to the resistor only.
Should UCC25640EVM-020 apply AC and DC inputs at the same time?
I only have one high power supply, so it's hard to provide both at the same time.
Thank you for your support.
