Patent ID: 9159516
Filing Date: 2015-10-13
Classification: B81B,H01H

Abstract:
1. A method of controlling positioning of a movable member of a MEMS microactuator relative to a fixed member fixed to a substrate on which the MEMS microactuator resides while suppressing bouncing and ringing of the movable member comprising: linearly increasing an actuation signal from a first state to a second state using a first linear voltage ramp with a positive slope to urge the movable member from a first position to a second position; holding the movable member in the second position with the actuation signal in the second state; linearly decreasing the actuation signal from the second state to a third state using a second linear voltage ramp having a first negative slope to release the movable member to a third position; holding the movable member in the third position with the actuation signal in the third state; and linearly decreasing the actuation signal from the third state using a third linear ramp voltage having a second negative slope to the first state to release the movable member to the first position.