JPS6419979A - Device for driving piezoelectric actuator for precision positioning - Google Patents

Device for driving piezoelectric actuator for precision positioning

Info

Publication number
JPS6419979A
JPS6419979A JP62172354A JP17235487A JPS6419979A JP S6419979 A JPS6419979 A JP S6419979A JP 62172354 A JP62172354 A JP 62172354A JP 17235487 A JP17235487 A JP 17235487A JP S6419979 A JPS6419979 A JP S6419979A
Authority
JP
Japan
Prior art keywords
piezoelectric actuator
displacement
length measuring
circuit
current source
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
JP62172354A
Other languages
Japanese (ja)
Inventor
Hiroki Tsuchida
Mikio Uratsuji
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.)
Lossev Technology Corp
Original Assignee
Lossev Technology Corp
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 Lossev Technology Corp filed Critical Lossev Technology Corp
Priority to JP62172354A priority Critical patent/JPS6419979A/en
Publication of JPS6419979A publication Critical patent/JPS6419979A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/80—Constructional details
    • H10N30/802—Circuitry or processes for operating piezoelectric or electrostrictive devices not otherwise provided for, e.g. drive circuits

Landscapes

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

Abstract

PURPOSE:To adjust the quantity of displacement accurately by installing a common constant current source between a charging circuit and a discharging circuit for a piezoelectric actuator, and controlling the duration of the flow of current to control the quantity of displacement of the piezoelectric actuator. CONSTITUTION:A common constant current source 5 is mounted between a charging circuit and a discharging circuit including a piezoelectric actuator 2. A length measuring machine 18 and a length measuring counter 17 for measuring the quantity of displacement of a displacement member 20 for positioning controlled by the piezoelectric actuator 2 are set up. The length measuring values of these length measuring means and an aimed length measuring value are compared, and the charging circuit or the discharging circuit is selected by a control circuit 16 by a deviation among them and switch corresponding to the circuit is turned ON. The operating time of the constant current source 5 is controlled by a timer 19 in response to the deviation. Accordingly, hysteresis is eliminated in the quantity of displacement, thus improving accuracy.
JP62172354A 1987-07-10 1987-07-10 Device for driving piezoelectric actuator for precision positioning Pending JPS6419979A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62172354A JPS6419979A (en) 1987-07-10 1987-07-10 Device for driving piezoelectric actuator for precision positioning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62172354A JPS6419979A (en) 1987-07-10 1987-07-10 Device for driving piezoelectric actuator for precision positioning

Publications (1)

Publication Number Publication Date
JPS6419979A true JPS6419979A (en) 1989-01-24

Family

ID=15940344

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62172354A Pending JPS6419979A (en) 1987-07-10 1987-07-10 Device for driving piezoelectric actuator for precision positioning

Country Status (1)

Country Link
JP (1) JPS6419979A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007088390A1 (en) * 2006-02-03 2007-08-09 Pbt (Ip) Limited Control system for piezo-electric actuator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60259347A (en) * 1984-06-02 1985-12-21 Canon Inc Piezoelectric type finely moving element and finely positioning device using thereof
JPS6217339A (en) * 1985-07-17 1987-01-26 Toyota Motor Corp Drive circuit for electrostrictive actuator for fuel injection valve

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60259347A (en) * 1984-06-02 1985-12-21 Canon Inc Piezoelectric type finely moving element and finely positioning device using thereof
JPS6217339A (en) * 1985-07-17 1987-01-26 Toyota Motor Corp Drive circuit for electrostrictive actuator for fuel injection valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007088390A1 (en) * 2006-02-03 2007-08-09 Pbt (Ip) Limited Control system for piezo-electric actuator

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