Loop noise balance technique for cm emi noise reduction of the full bridge llc resonant converter

A resonant converter, comprising:

• a primary side input circuit receiving an input signal;
• a transformer connected to the primary side input circuit;
• a secondary side output circuit connected to the transformer and providing an output signal;
• and
• a capacitor connecting the primary side input circuit to the secondary side output circuit.

A full bridge LLC resonant converter, comprising:

• a full bridge circuit including a first input node and a second input node;
• an LLC resonant tank circuit connected to the first input node and the second input node;
• a transformer winding part connected to the LLC resonant tank circuit;
• a rectifier circuit connected to the transformer winding part through a first output node and a second output node;
• and
• a capacitor connected between the first input node and the first output node.