LLC power converter with PWM signals to truncate on-time period

A method, comprising:

• receiving a current input indication, the current input indication to indicate a voltage to represent a current passing through of a primary side of an inductor-inductor-capacitor (LLC) power converter;
• receiving a voltage input, the voltage input to include a representative voltage to be provided from a secondary side of the LLC power converter;
• generating pulsed-width modulation (PWM) control signals for the LLC power converter to initiate an on-time period of a first leg of the LLC power converter;
• generating PWM control signals to truncate the on-time period of the first leg of the LLC power converter after a truncated on-time period, the truncated on-time period based on the current input indication and the voltage input;
• and
• generating PWM control signals to initiate an on-time period of a second leg of the LLC power converter following a duration of time when the first leg and the second leg are off;
• generating PWM control signals to match the truncated on-time period of the first leg of the LLC power converter and the on-time period of the second leg of the LLC power converter, the on-time period of the second leg of the LLC power converter approximately equal to the truncated on-time period of the first leg of the LLC power converter.

An inductor-inductor-capacitor (LLC) power converter, comprising:

• a first leg including a first switch;
• a second leg including a second switch, the first switch connected between a voltage supply and a midpoint, and the second switch connected between the midpoint and ground;
• a transformer including a primary side inductor and a secondary side inductor;
• a low side inductor connected between the midpoint and the primary side inductor;
• a capacitor connected between the primary side inductor and ground;
• a current sensor in series with the capacitor, the primary side inductor and the current sensor to generate a current input indication;
• a representative voltage received from the second side inductor;
• a control circuit to:
• receive the current input indication;
• receive the representative voltage;
• and
• based upon the current input indication and the representative voltage, generate pulsed-width modulation (PWM) control signals for the first leg and the second leg to:
• initiate an on-time period of a first leg of the LLC power converter, truncate the on-time period of the first leg, initiate an on-time period of the second leg of the LLC power converter following a duration of time when the first leg and the second leg are off, and match the on-time period of the second leg and the truncated on-time period of the first leg, the on-time period of the second leg approximately equal to the truncated on-time period of the first leg.