Multi-phase llc converters connected in parallel and series

A converter comprising:

• an input voltage terminal;
• a first phase circuit;
• and
• a second phase circuit;
• and
• an output voltage terminal;
• wherein each of the first phase circuit and the second phase circuit includes:
• a transformer including a primary winding and at least two secondary windings;
• a series circuit connected between the input voltage terminal and the primary winding, the series circuit including:
• a first switch and a second switch connected in series;
• and
• a resonant capacitor and a resonant inductor connected in series between the primary winding and a node between the first switch and the second switch;
• and
• a half-bridge rectifier circuit connected between the at least two secondary windings and the output voltage terminal;
• the at least two secondary windings of the first phase circuit are separate from the at least two secondary windings of the second phase circuit;
• the input voltage terminal is connected in parallel with an input of the first phase circuit and an input of the second phase circuit;
• and
• the output voltage terminal is connected in series with an output of the first phase circuit and an output of the second phase circuit.