Charge-recycling circuits

A circuit comprising:

• a current sourcing circuit having an output;
• a current sinking circuit having an output;
• a first switch configured to couple a first voltage signal to a first power switching device in response to a first control signal being active;
• a second switch configured to couple the first switching device to the output of the current sourcing circuit in response to a second control signal, wherein the first control signal and the second control signal are non-overlapping signals;
• a third switch configured to couple the output of the current sinking circuit to a second power switching device in response to the first control signal;
• a fourth switch configured to couple the second power switching device to ground in response to the second control signal;
• and
• a charge-recycling circuit coupled to the output of the current sourcing circuit and to the output of the current sinking circuit, the charge-recycling circuit receiving charge from the current sourcing circuit in response to the second control signal being inactive and the first control signal being inactive, and providing charge to the current sinking circuit in response to the second control signal being active.

A method comprising:

• providing a first current from a first input voltage to a first load circuit coupled to a first node, the first node being at a first node voltage;
• providing a second current from a second node to a second load circuit coupled to ground;
• sinking a third current from the first node through a current sinking circuit to ground;
• sourcing a fourth current from a second input voltage to the second node, the second node being at a second node voltage, the second node voltage being greater than the first node voltage;
• and
• transferring charge from the first node to the second node to reduce the third current.