JPS56166757A - Brushless motor - Google Patents

Brushless motor

Info

Publication number
JPS56166757A
JPS56166757A JP6944780A JP6944780A JPS56166757A JP S56166757 A JPS56166757 A JP S56166757A JP 6944780 A JP6944780 A JP 6944780A JP 6944780 A JP6944780 A JP 6944780A JP S56166757 A JPS56166757 A JP S56166757A
Authority
JP
Japan
Prior art keywords
phase
coils
disposed
coil
outputs
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
JP6944780A
Other languages
Japanese (ja)
Inventor
Toshiaki Nakasuji
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 JP6944780A priority Critical patent/JPS56166757A/en
Publication of JPS56166757A publication Critical patent/JPS56166757A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • H02K29/08—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates, magneto-resistors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Brushless Motors (AREA)

Abstract

PURPOSE:To manufacture a motor having less torque ripple by flowing driving currents having approximately equal phase to the crossing magnetic flux of two-phase exciting coils in accordance with the sum and difference signals of the outputs from magnetoelectric transducers elements. CONSTITUTION:Coils 2, 2' and 3, 3' of A and B phase are disposed in the phase difference of pi/2.3 of electrical angle. A Hall element H1 is disposed at the position of pi/4.5 from one end of the coil 2, a Hall element H2 is disposed at the position of pi/4.5 from one end of the coil 3', and the phase difference of the Hall elements H1 and H2 is pi/2.3. Differential amplifiers 6, 7 supply the different and sum signals of the outputs from the Hall elements H1, H2 through power amplifiers 8, 9 to the coils 3, 2, respectively. Since the driving currents having equal phase to the crossing magnetic flux of the coils are thus flowed, a synthesized rotating torque can be obtained without torque ripple.
JP6944780A 1980-05-24 1980-05-24 Brushless motor Pending JPS56166757A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6944780A JPS56166757A (en) 1980-05-24 1980-05-24 Brushless motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6944780A JPS56166757A (en) 1980-05-24 1980-05-24 Brushless motor

Publications (1)

Publication Number Publication Date
JPS56166757A true JPS56166757A (en) 1981-12-22

Family

ID=13402893

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6944780A Pending JPS56166757A (en) 1980-05-24 1980-05-24 Brushless motor

Country Status (1)

Country Link
JP (1) JPS56166757A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5033201A (en) * 1973-06-07 1975-03-31
JPS5549963A (en) * 1978-10-04 1980-04-11 Micro Seiki Kk Commutatorless dc motor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5033201A (en) * 1973-06-07 1975-03-31
JPS5549963A (en) * 1978-10-04 1980-04-11 Micro Seiki Kk Commutatorless dc motor

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