Ultrasonic motor driving circuit

Details Ultrasonic motor driving circuit Ultrasonic motor driving circuit

1991-03-28

1992-03-03

Budd, Mark O.

Electricity: motive power systems

Nonmagnetic motor

310316, H01L 4108

Patent

active

050936069

ABSTRACT:
A driving circuit for an ultrasonic motor is disclosed which utilizes a single transformer. A phase shifter frequency-divides the signal from an oscillator by N and generates a plurality of frequency divide signals having different phases. These divided signals are then used to control the driving of the piezoelectric element used to power the ultrasonic motor.

REFERENCES:
patent: 4749896 (1988-06-01), Suzuki et al.

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