Current Sharing Control Method And AC-DC Conversion System

A method for current sharing control, characterized in that, the method is applied to a current sharing controller, wherein the current sharing controller is configured to control an operating state of an AC-DC converter, and the AC-DC converter comprises at least two rectification units, each of the at least two rectification units is a bridge topology combined with an LLC resonant tank;

• and the method comprises:
• acquiring current sampling values of the at least two rectification units;
• determining a target phase shift angle for each of the at least two rectification units according to the current sampling values of the at least two rectification units, wherein the target phase shift angle is used to indicate a duration of an input voltage of the LLC resonant tank being in a zero-level state;
• controlling, according to the target phase shift angle of each of the at least two rectification units, a control signal of a target switch in the bridge topology of each of the at least two rectification units to perform phase shifting.