JPS5466416A - Brushless motor - Google Patents

Brushless motor

Info

Publication number
JPS5466416A
JPS5466416A JP13370877A JP13370877A JPS5466416A JP S5466416 A JPS5466416 A JP S5466416A JP 13370877 A JP13370877 A JP 13370877A JP 13370877 A JP13370877 A JP 13370877A JP S5466416 A JPS5466416 A JP S5466416A
Authority
JP
Japan
Prior art keywords
differential
output currents
stator
current
brushless motor
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.)
Granted
Application number
JP13370877A
Other languages
Japanese (ja)
Other versions
JPS5927196B2 (en
Inventor
Noriaki Wakabayashi
Takeshi Shimamoto
Yoshiaki Igarashi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP52133708A priority Critical patent/JPS5927196B2/en
Publication of JPS5466416A publication Critical patent/JPS5466416A/en
Publication of JPS5927196B2 publication Critical patent/JPS5927196B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: Not to generate a vibration in the winding, by smoothly switching a current in each stator winding, with a conduction angle of each stator winding in the brushless motor made below 180°.
CONSTITUTION: Output terminals A, -A and B, -B Hall elements, 110, 111, connected in parallel to a DC power source +E2, are connected to differential amplifiers 112a, 112b, 115a, 115b,116a,116b respectively, with a rotating position of the rotor being detected. Current mirror circuits 114a, 114b are connected to the respective differential amplifier circuits, and collector output currents IA, I-A of a first differential transistor are given to common emitters of two sets of differential transistors 115 and 116, and output currents IA-B, IAB of a second differential transistor 115 and output currents I-AB, I-A-B of the differential transistor 116 are made while switching at every 90° to stator windings 121a to 121d through transistors 120a to 120d, to successively and smoothly control a stator current.
COPYRIGHT: (C)1979,JPO&Japio
JP52133708A 1977-11-07 1977-11-07 brushless electric motor Expired JPS5927196B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52133708A JPS5927196B2 (en) 1977-11-07 1977-11-07 brushless electric motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52133708A JPS5927196B2 (en) 1977-11-07 1977-11-07 brushless electric motor

Publications (2)

Publication Number Publication Date
JPS5466416A true JPS5466416A (en) 1979-05-29
JPS5927196B2 JPS5927196B2 (en) 1984-07-04

Family

ID=15111024

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52133708A Expired JPS5927196B2 (en) 1977-11-07 1977-11-07 brushless electric motor

Country Status (1)

Country Link
JP (1) JPS5927196B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5944992A (en) * 1982-09-03 1984-03-13 Citizen Watch Co Ltd Drive circuit for motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5944992A (en) * 1982-09-03 1984-03-13 Citizen Watch Co Ltd Drive circuit for motor
JPH0561877B2 (en) * 1982-09-03 1993-09-07 Citizen Watch Co Ltd

Also Published As

Publication number Publication date
JPS5927196B2 (en) 1984-07-04

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