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JPS648876A - Drive controller for supersonic motor - Google Patents

Drive controller for supersonic motor

Info

Publication number
JPS648876A
JPS648876A JP62164553A JP16455387A JPS648876A JP S648876 A JPS648876 A JP S648876A JP 62164553 A JP62164553 A JP 62164553A JP 16455387 A JP16455387 A JP 16455387A JP S648876 A JPS648876 A JP S648876A
Authority
JP
Japan
Prior art keywords
speed
voltage
serrated
sweeping
supersonic motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62164553A
Other languages
Japanese (ja)
Inventor
Masaru Nakahama
Hiroyoshi Nomura
Kunikazu Ozawa
Osamu Kawasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62164553A priority Critical patent/JPS648876A/en
Publication of JPS648876A publication Critical patent/JPS648876A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/10—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors
    • H02N2/14—Drive circuits; Control arrangements or methods

Landscapes

  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)

Abstract

PURPOSE:To drive a supersonic motor with constant speed, by varying the sweeping period of a frequency sweeping means corresponding to the output from a speed detection means, thereby controlling the speed of a moving member. CONSTITUTION:A drive controller for a supersonic motor 6 comprises a serrated voltage generator 1, a voltage control oscillation circuit 2, a phase shifter 3 and power amplifier 4, 5. A speed detector 7 for a moving member 14 and a speed comparator 8 are provided. The serrated voltage generator 1 outputs a serrated control voltage sweeping continuously from high voltage to low voltage with a period corresponding to the output from the comparator 8. The oscillation circuit 2 outputs a signal sweeping from high to low frequencies based on the serrated control voltage and applies it onto the supersonic motor 6. Moving speed of the moving member 14 is detected through the speed detector 7, and a control signal is fed through the speed comparator 8 to the serrated voltage generator 1. Consequently, the speed can be maintained at a constant level by varying the sweeping period.
JP62164553A 1987-07-01 1987-07-01 Drive controller for supersonic motor Pending JPS648876A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62164553A JPS648876A (en) 1987-07-01 1987-07-01 Drive controller for supersonic motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62164553A JPS648876A (en) 1987-07-01 1987-07-01 Drive controller for supersonic motor

Publications (1)

Publication Number Publication Date
JPS648876A true JPS648876A (en) 1989-01-12

Family

ID=15795347

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62164553A Pending JPS648876A (en) 1987-07-01 1987-07-01 Drive controller for supersonic motor

Country Status (1)

Country Link
JP (1) JPS648876A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5214339A (en) * 1990-07-04 1993-05-25 Asmo Co., Ltd. Circuit and method of driving an ultrasonic motor to method for driving an ultrasonic motor
JP2009233515A (en) * 2008-03-26 2009-10-15 Sony Corp Driving gear of piezoelectric element and electrical equipment as well as method of controlling piezoelectric element driving frequency

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5214339A (en) * 1990-07-04 1993-05-25 Asmo Co., Ltd. Circuit and method of driving an ultrasonic motor to method for driving an ultrasonic motor
JP2009233515A (en) * 2008-03-26 2009-10-15 Sony Corp Driving gear of piezoelectric element and electrical equipment as well as method of controlling piezoelectric element driving frequency

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