JPS558227A - Motor drive device - Google Patents

Motor drive device

Info

Publication number
JPS558227A
JPS558227A JP7947478A JP7947478A JPS558227A JP S558227 A JPS558227 A JP S558227A JP 7947478 A JP7947478 A JP 7947478A JP 7947478 A JP7947478 A JP 7947478A JP S558227 A JPS558227 A JP S558227A
Authority
JP
Japan
Prior art keywords
voltage
hall
control
balance
position detector
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
JP7947478A
Other languages
Japanese (ja)
Inventor
Hiroshi Nakane
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP7947478A priority Critical patent/JPS558227A/en
Publication of JPS558227A publication Critical patent/JPS558227A/en
Pending legal-status Critical Current

Links

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  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

PURPOSE: To provide a motor drive device used to drive a turntable or the like by incorporating a control circuit for controlling the balance voltage of a hall voltage in a hall element as a rotor position detector by the balance voltage of a hall voltage of other hall element.
CONSTITUTION: Control transistors (TR) Q7, Q8 are selectively conducted as a result of comparing the output voltages HB1, HB2 at both terminals of a hall effect element H2 as a rotor position detector with the voltage of a bias power supply EB. Switching transistors Q3, Q4 are alternatively conducted by the relationship between the collector potentials of the control transistors Q7, Q8 and a voltage ES across a constant current drive circuit SD to thus supply a constant current IS alternatively to stator windings W3, W4. The balanced voltage between the hall voltages from the hall voltage output terminals of the elements H1, H2 are extracted via resistors R1-R4 of the same resistance, and one of the bias current of the elements H1, H2 is controlled via an operational amplifier A1 by the other thereof as a standard to thereby control so that the balance voltage may become the same as that at the standard side.
COPYRIGHT: (C)1980,JPO&Japio
JP7947478A 1978-06-30 1978-06-30 Motor drive device Pending JPS558227A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7947478A JPS558227A (en) 1978-06-30 1978-06-30 Motor drive device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7947478A JPS558227A (en) 1978-06-30 1978-06-30 Motor drive device

Publications (1)

Publication Number Publication Date
JPS558227A true JPS558227A (en) 1980-01-21

Family

ID=13690880

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7947478A Pending JPS558227A (en) 1978-06-30 1978-06-30 Motor drive device

Country Status (1)

Country Link
JP (1) JPS558227A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113341356A (en) * 2021-05-12 2021-09-03 深圳市国匠数控科技有限公司 Novel automatic magnetic balance detection component and method for engraving head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113341356A (en) * 2021-05-12 2021-09-03 深圳市国匠数控科技有限公司 Novel automatic magnetic balance detection component and method for engraving head
CN113341356B (en) * 2021-05-12 2023-03-10 深圳市国匠数控科技有限公司 Automatic magnetic balance detection component and method for engraving head

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