System and method for recovering voltage in a power conversion circuit

A method comprising:

• controlling power transfer from a primary side to a secondary side of DC-DC power conversion circuitry including a first switch and a second switch on either side of a transformer via the first switch in a normal operating mode;
• recovering voltage from the secondary side to the primary side by reversing a direction of the power transfer when a voltage on the primary side of the DC-DC power conversion circuitry is less than an operating voltage of gate driver circuitry configured to operate the first switch and the second switch, the direction of power transfer being reversed independent of a phase of the first switch and the second switch;
• and
• resuming the normal operating mode when the voltage on the primary side is greater than the operating voltage of the gate driver circuitry.

A system controller comprising:

• control circuitry configured to
• control power transfer from a primary side to a secondary side of DC-DC power conversion circuitry including a first switch and a second switch on either side of a transformer via the first switch in a normal operating mode,
• recover voltage from the secondary side to the primary side by reversing a direction of the power transfer when a voltage on the primary side of the DC-DC power conversion circuitry is less than an operating voltage of gate driver circuitry configured to operate the first switch and the second switch, and
• resume the normal operating mode of the DC-DC power conversion circuitry when the voltage on the primary side is greater than the operating voltage of the gate driver circuitry,
• wherein the control circuitry is further configured to reverse the direction of power transfer independent of a phase of the first switch and the second switch.