Patent ID: 7409820

Claim:
A system for moving an aircraft thrust reverser component, comprising: a power drive unit operable to rotate and thereby supply a rotational drive force; a thrust reverser actuator assembly coupled to receive the rotational drive force and operable, in response thereto, to selectively move the thrust reverser component between a stowed position and a deployed position; and a tertiary lock system configured to selectively engage and disengage the thrust reverser component to thereby prevent and allow movement thereof, respectively, the tertiary lock system including: a tertiary lock power unit configured to selectively receive an AC tertiary lock release command signal and operable, upon receipt thereof, to supply a DC lock release command signal; an electromechanical tertiary lock assembly adapted to receive a DC tertiary lock control signal and configured, upon receipt thereof, to move between a locked position and an unlocked position; and a voltage limiting circuit coupled between the tertiary lock power unit and the electromechanical tertiary lock assembly, the voltage limiting circuit coupled to receive the DC lock release command signal from the tertiary lock power unit and operable, upon receipt thereof, to supply the DC tertiary lock control signal to the electromechanical tertiary lock assembly, the DC tertiary lock control signal having a voltage magnitude that is limited to a predetermined value.