JPS5443511A - Detecting rotor position in brushless motor - Google Patents

Detecting rotor position in brushless motor

Info

Publication number
JPS5443511A
JPS5443511A JP10949077A JP10949077A JPS5443511A JP S5443511 A JPS5443511 A JP S5443511A JP 10949077 A JP10949077 A JP 10949077A JP 10949077 A JP10949077 A JP 10949077A JP S5443511 A JPS5443511 A JP S5443511A
Authority
JP
Japan
Prior art keywords
rotor
brushless motor
location
rotor position
sensor element
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
JP10949077A
Other languages
Japanese (ja)
Other versions
JPS6152630B2 (en
Inventor
Tsunehiro Maruo
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 JP10949077A priority Critical patent/JPS5443511A/en
Publication of JPS5443511A publication Critical patent/JPS5443511A/en
Publication of JPS6152630B2 publication Critical patent/JPS6152630B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Brushless Motors (AREA)

Abstract

PURPOSE:To prevent a decrease of starting torque and an increase of line noise and the like, by specifically designing a location of magnetic sensor element, for detecting a position of rotor, and a direction of bias field. CONSTITUTION:A magnetic sensor element 7 is vertically arranged in a location on inside diameter near around an end face of rotor, further with a direction of bias field, due to a bias magnet 3, being of diameter of a rotor magnet. In this way, a signal field comes to be nothing but only in vertical direction, with a displacement almost removed of conduction position of excitation current flowing in a stator winding, and a position of rotor can be detected by a simplified construction in a degree of high performance.
JP10949077A 1977-09-13 1977-09-13 Detecting rotor position in brushless motor Granted JPS5443511A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10949077A JPS5443511A (en) 1977-09-13 1977-09-13 Detecting rotor position in brushless motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10949077A JPS5443511A (en) 1977-09-13 1977-09-13 Detecting rotor position in brushless motor

Publications (2)

Publication Number Publication Date
JPS5443511A true JPS5443511A (en) 1979-04-06
JPS6152630B2 JPS6152630B2 (en) 1986-11-14

Family

ID=14511560

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10949077A Granted JPS5443511A (en) 1977-09-13 1977-09-13 Detecting rotor position in brushless motor

Country Status (1)

Country Link
JP (1) JPS5443511A (en)

Also Published As

Publication number Publication date
JPS6152630B2 (en) 1986-11-14

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