JPS5745616A - Electromagnet driving controller in magnetic supporting device - Google Patents

Electromagnet driving controller in magnetic supporting device

Info

Publication number
JPS5745616A
JPS5745616A JP12214580A JP12214580A JPS5745616A JP S5745616 A JPS5745616 A JP S5745616A JP 12214580 A JP12214580 A JP 12214580A JP 12214580 A JP12214580 A JP 12214580A JP S5745616 A JPS5745616 A JP S5745616A
Authority
JP
Japan
Prior art keywords
signal
inputted
electromagnets
control
voltage
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.)
Granted
Application number
JP12214580A
Other languages
Japanese (ja)
Other versions
JPS6330643B2 (en
Inventor
Chikayuki Hanami
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 JP12214580A priority Critical patent/JPS5745616A/en
Publication of JPS5745616A publication Critical patent/JPS5745616A/en
Publication of JPS6330643B2 publication Critical patent/JPS6330643B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/14—Control of position or direction using feedback using an analogue comparing device
    • G05D3/16—Control of position or direction using feedback using an analogue comparing device whose output amplitude can only take a number of discrete values

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Position Or Direction (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

PURPOSE:To improve the operating characteristics such as elimination of dead band and cancellation of effect of counter electromotive force, by operating two sets of DC electromagnets at the same time when an object to be supported is near a reference position, in a magnetic supporting controller by both DC electromagnet. CONSTITUTION:On (x) and (y) axes at the external circumference of a object to be supported (rotating body) (1) under position control, two sets of corresponding electromagnet groups 4, 5 and detectors 6, 7 detecting the position of rotating body on the (x), (y) axes are provided. A displacement detected at a detector is converted into a voltage V at a conversion circuit 8 and enters a comparator 9 and it is compared with an output voltage VO from a reference position setter 10, and the output difference is inputted to a control circuit 11 to obtain a control signal (e). The signal (e) and an auxiliary reference voltage EO are added and inputted to a discrimination circuit to obtain the 1st command signal picking up a positive signal only and this signal is subtracted by the EO and inputted to the discrimination circuit to obtain the 2nd command signal picking up a negative signal only. The both command signals control the electromagnets. As a result, since the opposing electromagnets are operated at the same time, the operation characteristics are improved for decrease in dead band and increase in restoring force.
JP12214580A 1980-09-02 1980-09-02 Electromagnet driving controller in magnetic supporting device Granted JPS5745616A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12214580A JPS5745616A (en) 1980-09-02 1980-09-02 Electromagnet driving controller in magnetic supporting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12214580A JPS5745616A (en) 1980-09-02 1980-09-02 Electromagnet driving controller in magnetic supporting device

Publications (2)

Publication Number Publication Date
JPS5745616A true JPS5745616A (en) 1982-03-15
JPS6330643B2 JPS6330643B2 (en) 1988-06-20

Family

ID=14828716

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12214580A Granted JPS5745616A (en) 1980-09-02 1980-09-02 Electromagnet driving controller in magnetic supporting device

Country Status (1)

Country Link
JP (1) JPS5745616A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6091020A (en) * 1983-09-30 1985-05-22 Ntn Toyo Bearing Co Ltd Control device of magnetic bearing

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0514693U (en) * 1991-08-09 1993-02-26 カヤバ工業株式会社 Spring load adjusting device for hydraulic shock absorber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6091020A (en) * 1983-09-30 1985-05-22 Ntn Toyo Bearing Co Ltd Control device of magnetic bearing
JPS6311536B2 (en) * 1983-09-30 1988-03-15 Ntn Toyo Bearing Co Ltd

Also Published As

Publication number Publication date
JPS6330643B2 (en) 1988-06-20

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