Patent ID: 8450905
Filing Date: 2013-05-28
Classification: H02N

Abstract:
1. A method for controlling velocity of an at least partially resonant actuator system, the method comprising: obtaining at an actuator controller computing system a selected operating velocity within an operational velocity range for at least one of one or more at least partially resonant actuator devices; generating with the actuator controller computing system at least two driving signals with one or more pulses; adjusting with the actuator controller computing system a width of the one or more pulses within at least one cycle of the at least two driving signals for the at least one of one or more at least partially resonant actuator devices based on the selected operating velocity without detecting a phase difference between the at least two driving signals; and providing with the actuator controller computing system the at least two driving signals with the adjusted width of the one or more pulses to obtain the selected operating velocity at the at least one of one or more at least partially resonant actuator devices.