This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

UCC2897A: Secondary Side Rectification - What is D2 doing in this circuit..

Part Number: UCC2897A
Other Parts Discussed in Thread: PMP10202, PMP5711, PMP9127

This is circuit is a reference design for the UCC2897A.      The schematic is below.    It is using a VB10150C-M3 to recifiy on the secondary side of the transformer.

As drawn, i've got no idea what the lower diode in the package is doing?   Does it do anything at all.. It appears to me its always going to be not conducting?

Any insights would be greatly appreciated.