Abstract |
Today, in the field of high torque low speed actuators, centimetric piezoelectric drive constitute
products with highly attractive functionality for Home Automation, Optics, Aeronautics, Space
and Bio-medical Engineering. But the constraints inherent to the supply of rather capacitive
armature piezoelectrics which works under the high voltage at ultrasonic frequencies, need to
consider again classical supply usually used for magnetic actuators. So this paper presents a
survey of classical and optimised supply for the main type of operating piezoelectric actuators. |