SMALL HIGH-VOLTAGE POWER DRIVING CIRCUIT FOR PIEZOELECTRIC ELEMENT

摘要

A small high-voltage power driving circuit for a piezoelectric element is disclosed. A radio wave control unit generates radio waves. A piezoelectric drive unit provides power so as to drive a small piezoelectric element. A piezoelectric element actuator generates displacement in response to a high voltage PWM signal. A reception module unit receives a radio wave signal from the radio wave control unit using an RF transmitting/receiving unit. A power module unit provides drive voltage using a separately provided battery. A microprocessor module unit generates a PWM control signal using the radio frequency signal. A full bridge drive module unit converts the PWM control signal into a PWM signal so as to drive the piezoelectric element. A high voltage conversion drive module unit outputs a high voltage PWM signal using the PWM signal and DC voltage.