JPS55112571A - Rotation signal detection unit - Google Patents
Rotation signal detection unitInfo
- Publication number
- JPS55112571A JPS55112571A JP2003179A JP2003179A JPS55112571A JP S55112571 A JPS55112571 A JP S55112571A JP 2003179 A JP2003179 A JP 2003179A JP 2003179 A JP2003179 A JP 2003179A JP S55112571 A JPS55112571 A JP S55112571A
- Authority
- JP
- Japan
- Prior art keywords
- hall elements
- output
- detection unit
- signal detection
- rotation signal
- 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)
- Control Of Electric Motors In General (AREA)
Abstract
PURPOSE: To make a rotation signal detection unit small-size by using the field magnetic flux of a motor as the energy source of the speed detection part.
CONSTITUTION: Disc 1 where concaves and convexes and convexes are cut on the outside circumference is connected to rotor field system magnet 2 into one body. Hall elements 101W103 are fixed to stator magnetic path material 3 through insulating materials 501W503 at a pitch of 120° and detect the magnetic flux of rotor field system magnet 2 on the course 300 passing through disc 1. The current supply quantity to Hall elements 101W103 is controlled according to the output of Hall elements to enlarge the output. From the output is Hall elements 101W103, signals corresponding to the rotation position and the rotation speed of the rotor are taken out.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54020031A JPS6027380B2 (en) | 1979-02-21 | 1979-02-21 | Rotation signal detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54020031A JPS6027380B2 (en) | 1979-02-21 | 1979-02-21 | Rotation signal detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55112571A true JPS55112571A (en) | 1980-08-30 |
| JPS6027380B2 JPS6027380B2 (en) | 1985-06-28 |
Family
ID=12015693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54020031A Expired JPS6027380B2 (en) | 1979-02-21 | 1979-02-21 | Rotation signal detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6027380B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6179421A (en) * | 1984-09-27 | 1986-04-23 | ト−ソ−株式会社 | Curtain motor stopping apparatus |
-
1979
- 1979-02-21 JP JP54020031A patent/JPS6027380B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6179421A (en) * | 1984-09-27 | 1986-04-23 | ト−ソ−株式会社 | Curtain motor stopping apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6027380B2 (en) | 1985-06-28 |
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