JPS60128482U - Detection device for rotating magnetic poles of electric motors - Google Patents
Detection device for rotating magnetic poles of electric motorsInfo
- Publication number
- JPS60128482U JPS60128482U JP1191784U JP1191784U JPS60128482U JP S60128482 U JPS60128482 U JP S60128482U JP 1191784 U JP1191784 U JP 1191784U JP 1191784 U JP1191784 U JP 1191784U JP S60128482 U JPS60128482 U JP S60128482U
- Authority
- JP
- Japan
- Prior art keywords
- hall element
- rotating magnetic
- detection device
- magnetic pole
- electric motors
- 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.)
- Pending
Links
Landscapes
- Brushless Motors (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図のＡは従来の電動機の回転磁極の検出装置の概略
を示し同Ｂ図はホール素子の平面図、第２図のＡはこの
考案の電動機の回転磁極の検出装置の概略を示し同Ｂ図
はホール素子を第２図のＡにおいてＡ−Ａ線方向に見た
図、第３図はこの考案の電動機の回転磁極の検出装置の
電気回路図である。
３・・・回転磁極面、４・・・ホール素子、４ａ・・・
基板、４ｂ、４ｂ’・・・ホール素子膜厚面、４ｂ、、
４ｂｘ’ｔ ４ｈ、、 ４ｂ２’・・・電流端子、４
ｂａ、４ ｂ３’・・・電圧端子、５・・・差動増幅
器。FIG. 1A shows an outline of a conventional rotating magnetic pole detection device for an electric motor, FIG. 1B shows a plan view of a Hall element, and FIG. Figure B is a view of the Hall element as viewed in the direction of line A--A in A of Figure 2, and Figure 3 is an electrical circuit diagram of the device for detecting the rotating magnetic pole of a motor according to this invention. 3... Rotating magnetic pole surface, 4... Hall element, 4a...
Substrate, 4b, 4b'... Hall element film thickness surface, 4b, .
4bx't 4h, 4b2'...Current terminal, 4
ba, 4 b3'... Voltage terminal, 5... Differential amplifier.
Claims (2)
ール素子のホール素子膜厚面が垂直となるよう上記ホー
ル素子を上記回転磁極面から所定のギャップを置いて対
向配設したことを特徴とする電動機の回転磁極の検出装
置。(1) The Hall element is arranged to face the rotating magnetic pole surface with a predetermined gap so that the Hall element film thickness surface of the Hall element is perpendicular to the rotating magnetic pole surface which is divided into a plurality of parts and magnetized. A rotating magnetic pole detection device for an electric motor, characterized in that:
２個設けて形成するとともにそれぞれのホール素子の電
圧端子に得られる出力電圧に１８０°の位相差が生ずる
ように電流端子を電源に接続して上記それぞれの電圧端
子に得られる出力を差動増幅器のそれぞれの入力端子に
入力させ出力端子から出力を得るようにしたことを特徴
とする実用新案登録請求の範囲第１項に記載の電動機の
回転磁極の検出装置。(2) The Hall element is formed by providing two Hall element film thickness surfaces on the same substrate, and the current terminal is connected to the power supply so that a 180° phase difference occurs in the output voltage obtained at the voltage terminal of each Hall element. Claim 1 of the utility model registration claim is characterized in that the outputs obtained from the respective voltage terminals are inputted to the respective input terminals of the differential amplifier and the output is obtained from the output terminals. Detection device for rotating magnetic poles of electric motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1191784U JPS60128482U (en) | 1984-01-31 | 1984-01-31 | Detection device for rotating magnetic poles of electric motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1191784U JPS60128482U (en) | 1984-01-31 | 1984-01-31 | Detection device for rotating magnetic poles of electric motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60128482U true JPS60128482U (en) | 1985-08-29 |
Family
ID=30494485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1191784U Pending JPS60128482U (en) | 1984-01-31 | 1984-01-31 | Detection device for rotating magnetic poles of electric motors |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60128482U (en) |
-
1984
- 1984-01-31 JP JP1191784U patent/JPS60128482U/en active Pending
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