Patent ID: 7401541

Claim:
An integrated electronically actuated fluid power actuator, comprising: a movable actuator portion ( 1 ); a stationary actuator portion ( 3 ) arranged adjacent said movable portion and adapted to receive ( 14 , 15 ) a fluid for moving said movable portion ( 1 ) means for sensing a position of said movable portion ( 1 ) with respect to said stationary portion ( 3 ); a pneumatic fluid power valve ( 13 ) adapted to supply at least one fluid to said stationary actuator portion ( 3 ); a valve controller ( 6 ) containing means ( 50 ) for comparing a target position for said movable actuator portion with an actual position, as detected by said sensing means, means for generating a sequence of command signals to said fluid power valve, to thereby supply fluid through said valve ( 13 ) to said stationary actuator portion ( 3 ), to bring said movable actuator portion ( 1 ) to said target position, a signal converter ( 30 ), and a valve driver ( 60 ), wherein the valve driver includes an H-bridge circuit ( 71 - 74 ) and the valve includes a voice coil.