JPS55107905A - Detector for position and speed of electric motor - Google Patents
Detector for position and speed of electric motorInfo
- Publication number
- JPS55107905A JPS55107905A JP1477979A JP1477979A JPS55107905A JP S55107905 A JPS55107905 A JP S55107905A JP 1477979 A JP1477979 A JP 1477979A JP 1477979 A JP1477979 A JP 1477979A JP S55107905 A JPS55107905 A JP S55107905A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- speed
- elements
- motor
- recesses
- 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
- Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
PURPOSE: To simultaneously detect the position and speed of rotor of a commutatorless motor, by providing projections and recesses on the peripheral surface of the rotor and attaching magnetism-sensitive elements to the stator of the motor.
CONSTITUTION: Recesses 9 and projections 8 are provided on the peripheral surface of the rotor 4 of a commutatorless motor such as a transistor motor so that a rotor speed signal pitch generation means is formed. Hall elements 11W13, which are magnetism-sensitive elements, are provided on the stator 3 of the motor. A rotor position detector is composed of the Hall elements 11, 12 and comparators 30, 40. The outputs of the elements 11, 12 are added to that of the other Hall element 13 whose input is connected inversely to those of the elements 11, 12. Higher harmonic due to the recesses 9 and projections 8 is picked out through a filter 50 to detect the speed of the rotor 4. The speed can thus be simultaneously detected by the means for detecting the position of the rotor.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54014779A JPS6021347B2 (en) | 1979-02-12 | 1979-02-12 | Motor position and speed detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54014779A JPS6021347B2 (en) | 1979-02-12 | 1979-02-12 | Motor position and speed detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55107905A true JPS55107905A (en) | 1980-08-19 |
| JPS6021347B2 JPS6021347B2 (en) | 1985-05-27 |
Family
ID=11870532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54014779A Expired JPS6021347B2 (en) | 1979-02-12 | 1979-02-12 | Motor position and speed detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6021347B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58157382A (en) * | 1982-03-15 | 1983-09-19 | Matsushita Electric Ind Co Ltd | Rotor drive device |
| WO1993009393A1 (en) * | 1991-11-06 | 1993-05-13 | Orbital Engine Company (Australia) Pty. Limited | Method and apparatus for determining position of a body in cyclic movement |
| CN110988672A (en) * | 2019-08-05 | 2020-04-10 | 江苏科技大学 | Locked-rotor anti-interference method and device for signal acquisition of Hall sensor of permanent magnet synchronous motor |
-
1979
- 1979-02-12 JP JP54014779A patent/JPS6021347B2/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58157382A (en) * | 1982-03-15 | 1983-09-19 | Matsushita Electric Ind Co Ltd | Rotor drive device |
| WO1993009393A1 (en) * | 1991-11-06 | 1993-05-13 | Orbital Engine Company (Australia) Pty. Limited | Method and apparatus for determining position of a body in cyclic movement |
| CN110988672A (en) * | 2019-08-05 | 2020-04-10 | 江苏科技大学 | Locked-rotor anti-interference method and device for signal acquisition of Hall sensor of permanent magnet synchronous motor |
| CN110988672B (en) * | 2019-08-05 | 2021-10-19 | 百恒石油装备有限公司 | Locked-rotor anti-interference method and device for signal acquisition of Hall sensor of permanent magnet synchronous motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6021347B2 (en) | 1985-05-27 |
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