The rectifier bridge comes from ZOWIE Zhiwei, model Z4RGP30MP, it is a fast recovery rectifier bridge, the specification is 1000V 3A, it adopts SMD package.

The pulsating direct current output by the rectifier bridge is connected to the small side board, and is filtered by an electrolytic capacitor to supply power to the GaN packaged chip.

The front side of the small side board is welded with differential mode inductors, filter electrolytic capacitors and transformers.