JPS5468908A - Brushless motor - Google Patents

Brushless motor

Info

Publication number
JPS5468908A
JPS5468908A JP13471777A JP13471777A JPS5468908A JP S5468908 A JPS5468908 A JP S5468908A JP 13471777 A JP13471777 A JP 13471777A JP 13471777 A JP13471777 A JP 13471777A JP S5468908 A JPS5468908 A JP S5468908A
Authority
JP
Japan
Prior art keywords
driving
windings
rotor
amplifier
current
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
JP13471777A
Other languages
Japanese (ja)
Inventor
Shigetoshi Noda
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 JP13471777A priority Critical patent/JPS5468908A/en
Publication of JPS5468908A publication Critical patent/JPS5468908A/en
Pending legal-status Critical Current

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  • Brushless Motors (AREA)

Abstract

PURPOSE:To rotate a rotor by a driving force resulting from electrical current and the magnetic flux of stator magnet, by controlling a driving circuit by a magnetic pole position detector means to sequentially supply the elctrical current to driving windings. CONSTITUTION:The rotor 2 of the motor 1 comprises a plurality of driving windings 3, a driving amplifier 4 for the windings 3, a Hall element 6 for detecting the position of magentic pole of the permanent magnet 5 of the stator, a part of a no- contact power supply means 7 for the driving amplifier 4, for example, the secondary winding n2 of a rotary high-frequency transformer 8, diodes D1, D2 and a smoothing capacitor C. Power is supplied from a square-wave power source 9 to the primary winding n1 of the high-frequency transformer 8. A position detection output corresponding to the position of magnetic pole of the stator magnet 5 is obtained from the Hall element 6 to control the amplifier 4 to sequentially supply the electrical current to the windings 3. The rotor is rotated by the driving force resulting from the interaction between the current and the magnetic flux of the stator magnet 5.
JP13471777A 1977-11-11 1977-11-11 Brushless motor Pending JPS5468908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13471777A JPS5468908A (en) 1977-11-11 1977-11-11 Brushless motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13471777A JPS5468908A (en) 1977-11-11 1977-11-11 Brushless motor

Publications (1)

Publication Number Publication Date
JPS5468908A true JPS5468908A (en) 1979-06-02

Family

ID=15134941

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13471777A Pending JPS5468908A (en) 1977-11-11 1977-11-11 Brushless motor

Country Status (1)

Country Link
JP (1) JPS5468908A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4763051A (en) * 1985-02-12 1988-08-09 Deutsche Forschungs- Und Versuchsanstalt Fur Luft- Und Raumfahrt E.V. Driving and positioning system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4763051A (en) * 1985-02-12 1988-08-09 Deutsche Forschungs- Und Versuchsanstalt Fur Luft- Und Raumfahrt E.V. Driving and positioning system

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