Isolated dc-dc power conversion circuit

A method comprising:

• aligning, based on a direction of power transfer, a primary side and a secondary side of DC-DC power conversion circuitry including a first switch and a second switch on either side of a first transformer, a first capacitor connected on a first side of a second transformer, and a second capacitor connected on a second side of the a second transformer, the second transformer being connected in parallel with the first transformer with the first and second capacitors therebetween;
• determining a quantity of power transfer through the DC-DC power conversion circuitry based on power and voltage characteristics of electrical components;
• determining a duty cycle and a switching frequency for the first switch or the second switch based on the quantity of power transferred through the DC-DC power conversion circuitry;
• and
• controlling switching of the first switch and the second switch.

A system controller comprising control circuitry configured to:

• align, based on a direction of power transfer, a primary side and a secondary side of DC-DC power conversion circuitry including a first switch and a second switch on either side of a first transformer, a first capacitor connected on a first side of a second transformer, and a second capacitor connected on a second side of the a second transformer, the second transformer being connected in parallel with the first transformer with the first and second capacitors therebetween;
• determine a quantity of power transfer through the DC-DC power conversion circuitry based on power and voltage characteristics of electrical components;
• determine a duty cycle and a switching frequency for the first switch or the second switch based on the quantity of power transferred through the DC-DC power conversion circuitry;
• and
• control switching of the first switch and the second switch.