JPS5443511A - Detecting rotor position in brushless motor - Google Patents
Detecting rotor position in brushless motorInfo
- 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
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.
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) |
-
1977
- 1977-09-13 JP JP10949077A patent/JPS5443511A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6152630B2 (en) | 1986-11-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5517478A (en) | Revolution detector | |
SE7713640L (en) | INDUCTIVE PULSE SENSOR WITH SPEED INDEPENDENT PULSE SAMPLITUD | |
IT1255811B (en) | ELECTRIC MOTOR EQUIPPED WITH A DEVICE TO DETECT THE POSITION OF THE ROTOR, THE NUMBER OF REVOLUTIONS AND / OR THE DIRECTION OF ROTATION | |
JPS57186976A (en) | Brushless motor | |
JPS5229917A (en) | Detection circuit for position of rotor in commutatorless motor | |
JPS5443511A (en) | Detecting rotor position in brushless motor | |
JPS5443510A (en) | Detecting rotor position in brushless motor | |
GB1376199A (en) | Apparatus for detecting motion and indicating speed | |
JPS52136312A (en) | Detecting device of revolving velocity in brushless motor | |
JPS52131110A (en) | Rotor of synchronous motor | |
JPS6419938A (en) | Squirrel-cage motor equipped with rotating speed detector | |
JPS5658770A (en) | Rotor for brushless motor | |
JPS5771259A (en) | Commutatorless motor | |
JPS5783150A (en) | Commutatorless motor | |
IT1264605B1 (en) | ELECTRIC MOTOR WITH A DEVICE TO DETECT THE POSITION OF THE ROTOR, THE NUMBER OF REVOLUTIONS AND, OR THE DIRECTION OF ROTATION | |
JPS57138856A (en) | Rotor for motor | |
FR2242801A2 (en) | Device for measuring vehicle displacement or speed - magnet and coil assembly produces output pulses | |
JPS5612831A (en) | Tubular potary electric machine | |
GB976861A (en) | Improvements in tachogenerators | |
KR900000118B1 (en) | Coreless type brushless motor | |
SU639001A1 (en) | Induction-type angular displacement transducer | |
JPS54122174A (en) | Sensor for detecting number of revolutions of motors | |
JPS5785564A (en) | Dc brushless motor | |
JPS57208668A (en) | Magnetic recorder | |
JPH0218691Y2 (en) |