Patent ID: 6971346

Claim:
A system for electronically actuating valves in an internal combustion engine, comprising: a first voltage source; a second voltage source; and plural valve actuator subsystems coupled between the first voltage source and the second voltage source, each valve actuator subsystem having a valve actuator and a switch, where the switch and the valve actuator of one of the valve actuator subsystems are configured so that current flows from the first voltage source through the valve actuator when the switch is in a first position, and when the switch is in a second position, current is permitted to flow from the valve actuator toward the second voltage source, and where the switch and the valve actuator of another of the valve actuator subsystems are configured so that current flows from the second voltage source through the valve actuator when the switch is in a first position, and when the switch is in a second position, current is permitted to flow from the valve actuator toward the first voltage source.