JPS55153287A - Brushless motor - Google Patents

Brushless motor

Info

Publication number
JPS55153287A
JPS55153287A JP6115979A JP6115979A JPS55153287A JP S55153287 A JPS55153287 A JP S55153287A JP 6115979 A JP6115979 A JP 6115979A JP 6115979 A JP6115979 A JP 6115979A JP S55153287 A JPS55153287 A JP S55153287A
Authority
JP
Japan
Prior art keywords
transistor
reference voltage
power
constant
resistors
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
JP6115979A
Other languages
Japanese (ja)
Inventor
Kotoji Kawashima
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.)
Sanyo Electric Co Ltd
Kumagaya Seimitsu Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Kumagaya Seimitsu 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 Sanyo Electric Co Ltd, Kumagaya Seimitsu Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP6115979A priority Critical patent/JPS55153287A/en
Publication of JPS55153287A publication Critical patent/JPS55153287A/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
    • H02P6/08—Arrangements for controlling the speed or torque of a single motor

Landscapes

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

Abstract

PURPOSE:To make the rotating speed constant with regard to the variation in a power-supply voltage by comparing the reference voltage formed by a reference transistor and a plurality of resistors and performing control. CONSTITUTION:Stator windings L1-L3 are sequentially switched and excited by controlling power transistors Q1-Q3 by a rotating position sensor 3 via controlling transistors Q4-Q6. While a reference-voltage source 9 comprising a reference transistor Q9 and resistors R1-R5 and the counter-electromotive force of stator windings L1-L3 are compared at a comparison transistor Q8. Then, a common transistor Q7 is controlled and the power transistors Q1-Q3 are controlled. The value of each resistor in the reference voltage source 9 is so selected as to have specific relationship. Therefore even though the power-supply voltage is varied, the reference voltage can be held constant and the rotating speed is also kept at a constant speed; and the reference voltage can set without steps by the selection of the resistance.
JP6115979A 1979-05-17 1979-05-17 Brushless motor Pending JPS55153287A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6115979A JPS55153287A (en) 1979-05-17 1979-05-17 Brushless motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6115979A JPS55153287A (en) 1979-05-17 1979-05-17 Brushless motor

Publications (1)

Publication Number Publication Date
JPS55153287A true JPS55153287A (en) 1980-11-29

Family

ID=13163073

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6115979A Pending JPS55153287A (en) 1979-05-17 1979-05-17 Brushless motor

Country Status (1)

Country Link
JP (1) JPS55153287A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59189491U (en) * 1983-05-18 1984-12-15 東光株式会社 Motor drive circuit
JPS59226679A (en) * 1983-05-18 1984-12-19 Toko Inc Drive circuit for motor
FR2644015A1 (en) * 1989-03-03 1990-09-07 Abg Semca Control of brushless DC motor and device including such a control

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59189491U (en) * 1983-05-18 1984-12-15 東光株式会社 Motor drive circuit
JPS59226679A (en) * 1983-05-18 1984-12-19 Toko Inc Drive circuit for motor
FR2644015A1 (en) * 1989-03-03 1990-09-07 Abg Semca Control of brushless DC motor and device including such a control

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