Drive circuit for vibratory-wave motor

Details Drive circuit for vibratory-wave motor Drive circuit for vibratory-wave motor

1989-05-22

1990-10-23

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

318116, H01L 4108

Patent

active

049654810

ABSTRACT:
In a drive circuit for a vibratory-wave motor, there is provided a changeover circuit for alternately changing over a direction in which a current is supplied to a primary coil of a transformer in response to a frequency signal, a low-voltage power source is used as a power source of the changeover circuit, and a low voltage is boosted by the switching operation of the changeover circuit to obtain a frequency high voltage for driving the vibratory-wave motor.

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