Other Parts Discussed in Thread: UCC256301
Hi Team,
I am posting this inquiry on the customer's behalf.
The customer would like to use UCC256404 in his new design (changing the UCC256301 to UCC256404 because their power requirements increased) in the image below:
Here's the question from the customer:
The customer plan on having 4x outputs. One 40V output that the voltage feedback will sense. A 400V output, and two housekeeping outputs. There are conditions where the 400V output will need +700W while the 40V output is essentially unloaded.
They are curious about cross regulation performance with multiple outputs for the LLC controller. Specifically, concerned about how the control loop will respond as the loads change on the various outputs.
Also, curious about how the control loops handle transients and steady state operations when supplying power to multiple transformer outputs. If the control loop regulates the voltage based on an unloaded output, what happens to the other outputs when they're at full power?
Please let me know if you need more information.
Thanks!
Jonathan