Rectifying and chopping integrated device and hydrogen production power supply system

The utility model relates to a rectifying and chopping integrated device and a hydrogen production power supply system. The rectifying and chopping integrated device comprises a heat dissipation plate, a rectifying assembly and a chopping assembly, a heat dissipation flow channel is formed in the heat dissipation plate, and a heat dissipation medium flows in the heat dissipation flow channel; the rectification assembly is arranged on one side of the heat dissipation plate and is in heat transfer connection with the heat dissipation plate; the chopping assembly and the rectification assembly are located on the two opposite sides of the heat dissipation plate respectively and are in heat transfer connection with the heat dissipation plate. According to the scheme, the rectifying assembly and the chopping assembly are integrally arranged on the two opposite sides of the same heat dissipation plate, the size of the overall structure is reduced, heat dissipation can be conducted on the rectifying assembly and the