Synchronous rectification assembly, manufacturing method thereof and power supply

A manufacturing method of a synchronous rectification assembly, characterized in comprising the following steps of:

• providing a transformer on a synchronous rectification board and electrically connecting the transformer to the synchronous rectification board, wherein the synchronous rectification board is provided with a conductive contact for being electrically connected to an external apparatus, and the synchronous rectification board is used for synchronously rectifying an output signal of the transformer and thereafter transmitting the output signal to the conductive contact;
• providing the synchronous rectification board on the main board and electrically connecting the synchronous rectification board to the main board;
• wherein the synchronous rectification board is disposed above the main board, the transformer is disposed above the synchronous rectification board, a pin of a secondary side assembly of the transformer is led out from below the transformer, the pin extending from a lower side of the transformer is directly inserted into corresponding metal holes of the synchronous rectification board and electrically connected to the synchronous rectification board.