Hi team,
Here's an issue from the customer may need your help:
The customer is going to design the receiver side of the wireless charging power supply, do not consider the receive coil, but consider the circuit behind the coil.
The input voltage is 18~20V AC, the current is 4A, the output is 16.8V, and the constant current of 2A charges the battery. The customer would like to know how to select a power chip?
Select the AC input with WEBENCH design software, as shown in the figure below, and then design to reduce ripple and increase efficiency, leaving 7 recommended circuits. There are seven circuits, UCC2802\UCC3802\UCC2813-2\UCC3813-2-Q1\UCC2802-Q1\UCC1802, all of which have the same peripheral design, but different chips.
a. can these chips meet the requirements, which one is more appropriate?
b. what are the main differences between these chips?
c. Can circuits designed by WEBENCH be directly applied to draw circuit diagrams?
Could you help check this case? Thanks.
Best Regards,
Cherry