Tool/software:
Hi,
The customer has the following two problems when using this chip design, please help troubleshoot the problems, the schematic design is as follows;
1. The customer found that there will be a whistle when the circuit is unloaded, and there will be a sound with a load of 0.3A. The ceramic capacitor used is not confirmed whether it is a capacitor whistle or an inductor whistle.
2.The customer uses this board to connect the wireless charging device, which cannot be started and has no current. But using this board to do large current output is no problem, small current output will be a problem.
Requirements, Vin36-48V,Vout 13.5V, connected to wireless charging equipment.
Please help to check the design of the original processing diagram and suggest troubleshooting.
Thanks!
