Injector driver control unit with internal overvoltage protection

摘要

An injector driver control unit with internal overvoltage protection. The device includes a first overvoltage sense unit (18) and an injector drive inhibit unit (21) for diverting injector drive signals from an injector drive unit (14) and for diverting flyback energy from a flyback control unit (16). The device also includes a second overvoltage sense unit (19) that can control a clamp control unit (22) to thereby activate an energy clamp (23) to control voltage potential across the injector solenoid (12).