Title:
CIRCUIT FOR DRIVING AND CONTROLLING ULTRASONIC OSCILLATOR
Document Type and Number:
Japanese Patent JPH067743
Kind Code:
A
Abstract:
PURPOSE: To control the frequency of an output signal for driving an ultrasonic oscillator at a const. amplitude and to output a signal with a tuning frequency even if the change in vibrational frequency of the ultrasonic oscillator is wide.
CONSTITUTION: A resonance circuit 2 for an oscillator generating a driving signal for an ultrasonic oscillator 3 and loading it to the ultrasonic oscillator 3 and a variable frequency setting circuit 1 changing continuously the inductance of this resonance circuit 2 for the oscillator at a const. period, are provided.
Inventors:
UNO MASAMI
Application Number:
JP19337992A
Publication Date:
January 18, 1994
Filing Date:
June 26, 1992
Export Citation:
Assignee:
SUZUKI MOTOR CO
International Classes:
B06B1/06; B23K1/06; G05D19/02; (IPC1-7): B06B1/06; G05D19/02
Attorney, Agent or Firm:
Takahashi Isamu