Patent ID: 7036469

Claim:
An electronic circuit, comprising: a first electromechanical actuator coil coupled to one of a plurality of cylinder valves of an internal combustion engine, where a first end of said first electromechanical actuator coil is coupled to a reference; a second electromechanical actuator coil, where a first end of said second electromechanical actuator coil is coupled to said reference; a first energy storage device, where a first end of said first energy storage device is coupled to said reference; a second energy storage device, where a first end of said second energy storage device is coupled to said reference; a first switch, where a first end of said first switch is coupled to a second end of said first electromechanical actuator coil; a second switch, where a first end of said second switch is coupled to said second end of said first electromechanical actuator coil; a third switch, where a first end of said third switch is coupled to a second end of said second coil; a fourth switch, where a first end of said fourth switch is coupled to said second end of said second coil; and a controller to activate said switches to route electrical energy from at least one of said energy storage devices through each of said first and second coils in any one of two opposing directions.