Multi-module dc-dc converter, integrated magnetic component, and manufacturing method of integrated magnetic component

A manufacturing method of an integrated magnetic component for a multi-module DC-DC converter, comprising:

• providing N primary windings and N secondary windings, wherein N is an integer greater than one;
• providing N magnetic cores arranged sequentially, wherein each of the N magnetic cores comprises a plate, a first common core leg, a second common core leg, an inductor core leg and a transformer core leg, wherein in each of the N magnetic cores, the first common core leg and the second common core leg are disposed at a first side and a second side of the plate respectively, the inductor core leg and the transformer core leg are disposed on the plate;
• and
• in each of the N magnetic cores, configuring the inductor core leg to be wound with a corresponding primary winding of the N primary windings or a corresponding secondary winding of the N secondary windings, and configuring the transformer core leg to be wound with the corresponding primary winding and the corresponding secondary winding interleaved with each other.

A multi-module DC-DC converter, comprising:

• N conversion modules, configured to be connected between a power source and a load, wherein N is an integer greater than one, and each of the N conversion modules comprises a DC/AC cell, a transformer and inductor cell and an AC/DC cell,
• wherein N transformer and inductor cells of the N conversion modules are formed by an integrated magnetic component, the integrated magnetic component comprises N primary windings, N secondary windings and N magnetic cores, the N magnetic cores are arranged sequentially, and each of the N magnetic cores comprises:
• a plate;
• a first common core leg and a second common core leg, disposed at a first side and a second side of the plate respectively;
• and
• an inductor core leg and a transformer core leg, disposed on the plate, wherein the inductor core leg is configured to be wound with a corresponding primary winding of the N primary windings or a corresponding secondary winding of the N secondary windings, and the transformer core leg is configured to be wound with the corresponding primary winding and the corresponding secondary winding interleaved with each other.