H ELECTRICITY
H02 GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02N ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
H02N2/00 Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
H02N2/02 producing linear motion, e.g. actuators; Linear positioners; ; Linear motors
H02N2/06 Drive circuits; Control arrangements; or methods
H02N2/062 Small signal circuits; Means for controlling position or derived quantities, e.g. for removing hysteresis