Synchronous quadrature current controlled resonant power converter

A power converter comprising:

• a voltage controlled bridge circuit comprising a first plurality of switching devices across a first voltage bus, wherein the first plurality of switches are coupled to a first transformer winding of a transformer device;
• a voltage controller circuit configured to pulse width modulate the first bus voltage by controlling the first plurality of switching devices associated with a primary harmonic voltage;
• a current controlled bridge circuit comprising a second plurality of switching devices across a second voltage bus, wherein the second plurality of switches are coupled to a second transformer winding of the transformer device;
• a resonant network comprised of a capacitance element and an inductance element coupled with:
• the first transformer winding, or the second transformer winding, or both the first transformer winding and the second transformer winding;
• a bridge current sensor configured to measure a signal related to current flow across switching nodes of the current controlled bridge circuit;
• a current controller circuit configured to pulse width modulate the second bus voltage by comparing a synchronous modulation waveform and a feedback signal to control the second plurality of switching devices associated with a secondary harmonic voltage;
• a synchronous average harmonic current compensator configured to integrate and compensate the bridge current sensor signal synchronously over each half of a square wave switching period and sample compensator output to generate the feedback signal;
• and
• a quadrature current compensator configured to reduce error between a quadrature current command and an estimated linearized harmonic current flow between the primary harmonic voltage and secondary harmonic voltage.