GIMBAL MICROPOSITIONING DEVICE

摘要

A head positioning mechanism in a disc drive system is disclosed. The disc drive system includes a rotatable disc (12), an actuator arm (18), and a suspension load beam (22, 32, 52, 72) connected to the actuator arm (18). The head positioning mechanism includes a motor (38, 58) attached to the suspension load beam (22, 32, 52, 72). A gimbal (23, 33, 53, 73) has a first end attached to the motor (38, 58), and a slider (24, 34, 54, 74) carrying a transducing head (35, 55, 75) is attached to a second end of the gimbal (23, 33, 53, 73). Control circuitry (39, 59, 79) generates electrical control signals to operate the motor (38, 58) to selectively position the transducing head (35, 55, 75) proximate a predetermined radial location on the rotatable disc (12).