Charge shedding circuit

A method comprising:

• generating, by a voltage converter, a shed comparison signal that is based on a comparison of a voltage detected from a voltage converter to a reference voltage;
• generating, by the voltage converter, a zero cross signal that indicates whether a current from the voltage converter has crossed zero;
• sampling the shed comparison signal for a first number of clock cycles to generate shed comparison sampled values;
• sampling the zero cross signal for a second number of clock cycles to generate zero cross sampled values, wherein the second number of clock cycles are less than the first number of clock cycles;
• monitoring the shed comparison sampled values for the first number of clock cycles and the zero cross sampled values for the second number of clock cycles;
• and
• causing a change between a shed state and an unshed state corresponding to a portion of a plurality of transistors of the voltage converter based on determining either the shed comparison sampled values have essentially a first same value or the zero cross sampled values have essentially a second same value.

A voltage converter comprising:

• means for generating a shed comparison signal that is based on a comparison of a voltage detected from a voltage converter to a reference voltage;
• means for generating a zero cross signal that indicates whether a current detected from the voltage converter has crossed zero;
• means for sampling the shed comparison signal for a first number of clock cycles to generate shed comparison sampled values;
• means for sampling the zero cross signal for a second number of clock cycles to generate zero cross sampled values, wherein the second number of clock cycles are less than the first number of clock cycles;
• and
• means for determining a change between a shed state and an unshed state corresponding to a portion of a plurality of transistors of the voltage converter based on monitoring the shed comparison sampled values for the first number of clock cycles and the zero cross sampled values for the second number of clock cycles to determine either the shed comparison sampled values have essentially a first same value or the zero cross sampled values have essentially a second same value.