JPS561789A - Driving circuit for brushless dc motor - Google Patents

Driving circuit for brushless dc motor

Info

Publication number
JPS561789A
JPS561789A JP7706579A JP7706579A JPS561789A JP S561789 A JPS561789 A JP S561789A JP 7706579 A JP7706579 A JP 7706579A JP 7706579 A JP7706579 A JP 7706579A JP S561789 A JPS561789 A JP S561789A
Authority
JP
Japan
Prior art keywords
supplied
output
outputs
stator coil
amplifier
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
JP7706579A
Other languages
Japanese (ja)
Inventor
Toshimi Fukuoka
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP7706579A priority Critical patent/JPS561789A/en
Publication of JPS561789A publication Critical patent/JPS561789A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/10—Arrangements for controlling torque ripple, e.g. providing reduced torque ripple

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

PURPOSE:To obtain a motor having no torque variation by employing a rotor magnet having the sine-wave distribution of magnetic fluxes, vertically summing the outputs of two Hall elements 6 and 7 whose electrical angles are separated by 90 deg., and supplying the resultant outputs to stator coils. CONSTITUTION:Two Hall elements 6 and 7 whose electrical angles are separated by 90 deg. send out the outputs of since-wave signals by the rotation of a rotor magnet having the sine-wave distribution of magnetic fluxes. The output of said Hall element 6 is supplied to an amplifier 19, from which the output SA is supplied to one end of a stator coil 4. The output of the Hall element 7 is supplied to an amplifier 21, from which the output SB is supplied to one end of a stator coil 5. The output SA is supplied to the connecting point of the stator coils 4 and 5 via an inversion amplifier 20. Therefore, the resultant vector 29 of the outputs SA and SB is supplied to the stator coil 4, and resultant vector 30 of the inverted output SA and output SB is supplied to a stator coil 5, thereby the driving voltage separated by 90 deg. of an electrical angle can be obtained.
JP7706579A 1979-06-19 1979-06-19 Driving circuit for brushless dc motor Pending JPS561789A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7706579A JPS561789A (en) 1979-06-19 1979-06-19 Driving circuit for brushless dc motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7706579A JPS561789A (en) 1979-06-19 1979-06-19 Driving circuit for brushless dc motor

Publications (1)

Publication Number Publication Date
JPS561789A true JPS561789A (en) 1981-01-09

Family

ID=13623383

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7706579A Pending JPS561789A (en) 1979-06-19 1979-06-19 Driving circuit for brushless dc motor

Country Status (1)

Country Link
JP (1) JPS561789A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57153591A (en) * 1981-03-17 1982-09-22 Pioneer Electronic Corp Driving system for 2-phase brushless motor
JPS5857300U (en) * 1981-10-12 1983-04-18 三菱電機株式会社 Transistor motor drive circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57153591A (en) * 1981-03-17 1982-09-22 Pioneer Electronic Corp Driving system for 2-phase brushless motor
JPS5857300U (en) * 1981-10-12 1983-04-18 三菱電機株式会社 Transistor motor drive circuit

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