DC/DC conversion system

A DC/DC conversion system, comprising:

• a plurality of switch conversion branches, each of the switch conversion branches comprises:
• a primary side circuit, having an input end connected in parallel with an input capacitor;
• a transformer, having a primary winding coupled to the primary side circuit;
• and
• a secondary side circuit, coupled to a secondary winding of the transformer,
• wherein, input ends of the primary side circuits of the plurality of switch conversion branches are connected in series to form a system input end, output ends of the secondary side circuits of the plurality of switch conversion branches are connected in series to form a system output end, and a filter circuit is connected in parallel with the system output end, and
• DC/DC conversion system, further comprises a voltage equalization control module, wherein the voltage equalization control module is configured to:
• compare a voltage of each input capacitor with a reference input voltage to obtain a corresponding first error signal;
• compare an output voltage of the DC/DC conversion system with a reference output voltage to obtain a second error signal;
• and
• adjust a duty ratio of a driving signal of a switch of the primary side circuit according to the corresponding first error signal and the second error signal.