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JPH0316282A - Hall effect device - Google Patents

Hall effect device

Info

Publication number
JPH0316282A
JPH0316282A JP1151877A JP15187789A JPH0316282A JP H0316282 A JPH0316282 A JP H0316282A JP 1151877 A JP1151877 A JP 1151877A JP 15187789 A JP15187789 A JP 15187789A JP H0316282 A JPH0316282 A JP H0316282A
Authority
JP
Japan
Prior art keywords
electrodes
voltage
hall effect
output
pitch
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
Application number
JP1151877A
Other languages
Japanese (ja)
Inventor
Jutaro Kotani
小谷 壽太郎
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electronics 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 Matsushita Electronics Corp filed Critical Matsushita Electronics Corp
Priority to JP1151877A priority Critical patent/JPH0316282A/en
Publication of JPH0316282A publication Critical patent/JPH0316282A/en
Pending legal-status Critical Current

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  • Hall/Mr Elements (AREA)

Abstract

PURPOSE:To enable generation of an FG pulse signal of a microbrushless-motor by providing two or more Hall effect detection sections and by detecting a polarity of a magnet between two pitches in a series structure. CONSTITUTION:A pattern pitch M is a width between Hall effect detection sections 1 and 2. By narrowing the width, a pitch between magnets 10 and 11 also becomes narrow; and a pitch is M=P. When an input voltage is applied to input electrodes 3, 4, a voltage is not output among output electrodes 5, 6, 7, 8 at a center of a pattern of a magnetic pole of a rotating drum 9; however, if it is deviated to either, a voltage is output between electrodes 5 to 6 and between electrodes 7 and 8. Although a voltage between electrodes 5 to 6 and that between electrodes 7 and 8 are the same level, a phase deviates by 180 deg., thereby resulting in a wiring as illustrated when a total output voltage is taken. Accordingly, it is possible to oscillate an FG pulse signal precisely even with a small rotating drum having a multipolar magnet and to form a microbrushless-motor.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、2個以上のホール素子をアレーとして構或す
る事で、多極着磁した回転ドラムの回転センサとしての
機能を果し、超小型ブラシレスモーターを作或するため
に必要となるFGのパノレス信号発生用ホール効果装置
に関するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention functions as a rotation sensor for a multi-pole magnetized rotating drum by configuring two or more Hall elements as an array. This invention relates to a Hall effect device for generating a panoless signal of an FG, which is necessary for producing a brushless motor.

従来の技術 従来、この種のFGのバノレス信号発生には磁気抵抗効
果装置を用いていた。第4図の構或図に示すように多極
着磁されていた回転ドラムの回転センサとして用いられ
ていた。第4図にお・いて、9は多極着磁された回転ド
ラム、10ぱN磁極、11はS磁極、12は磁気抵抗効
果装置である。
2. Description of the Related Art Conventionally, a magnetoresistive effect device has been used to generate a vanorless signal in this type of FG. As shown in the schematic diagram of FIG. 4, it was used as a rotation sensor for a rotating drum that was magnetized with multiple poles. In FIG. 4, numeral 9 is a multi-pole magnetized rotary drum, 10 is an N magnetic pole, 11 is an S magnetic pole, and 12 is a magnetoresistive effect device.

磁気抵抗効果装置12は、磁気変化を電気抵抗として検
出するものであり、センサパターンのストライブピッチ
をP,多極着磁パターン9のピッチをVとすると、M=
2Pとなるように構或されている。
The magnetoresistive effect device 12 detects magnetic changes as electrical resistance, and if the stripe pitch of the sensor pattern is P and the pitch of the multipolar magnetized pattern 9 is V, then M=
It is configured to be 2P.

発明が解決しようとする課題 このような従来の構我では、回転ドラムが大きく、多極
着磁パターンが広かった。そのため、超薄型ブラシレス
モーターはできても、超小型ブラシレスモーターは作戊
できないという問題があった。
Problems to be Solved by the Invention In such conventional structures, the rotating drum was large and the multipole magnetization pattern was wide. Therefore, although an ultra-thin brushless motor could be made, there was a problem in that it was impossible to make an ultra-compact brushless motor.

本発明は、このような問題点を解決するもので、超小型
ブラシレスモーターを作或するためのFGパルス信号を
発生するホー〃効果装置を提供することを目的とするも
のである。
The present invention solves these problems and aims to provide a Hoh effect device that generates an FG pulse signal for producing an ultra-small brushless motor.

課題を解決するための手段 この問題を解決するために、本発明は、FGパノレス信
号発生用に、ホール効果検出部分を2個以上所有し、直
列構造にすることで2つのピッチ間で、磁石の極性を検
出できるようにしたものである。
Means for Solving the Problem In order to solve this problem, the present invention has two or more Hall effect detection parts for FG panoless signal generation, and has a serial structure, so that magnets can be detected between two pitches. The polarity of the signal can be detected.

作用 この構造により、ホール効果検出部分ともう一つのホー
ル効果検出のピッチ間隔Pで磁石の極性を検出できるた
め、多極着磁の極性のパターンピッチの幅を狭くでき磁
石の極の幅も小さくでき、回転ドラム自体も小さくでき
る。
Effect With this structure, the polarity of the magnet can be detected by the pitch interval P between the Hall effect detection part and another Hall effect detection part, so the width of the pattern pitch of the polarity of multi-pole magnetization can be narrowed, and the width of the magnet poles can also be made small. The rotating drum itself can also be made smaller.

実施例 第1図は、本発明の一実施例によるホール効果装置の構
造図であり、第2図に使用例を示す。
Embodiment FIG. 1 is a structural diagram of a Hall effect device according to an embodiment of the present invention, and FIG. 2 shows an example of its use.

第1図において、1 ,2はホーp効果検出部分、3,
4は入力電極、5,6,7.8は出力電極である。第2
図において、9ぱ多極着磁付回転ドラム、10はN極磁
石、11はS極磁石である。ホール効果検出部分1と2
の間が、パターンピッチVになシ、この幅を狭ぐするこ
とで磁石10,11のピッチも狭くなり、m=pのピッ
チで良い。
In Fig. 1, 1 and 2 are the Hope effect detection parts, 3,
4 is an input electrode, and 5, 6, 7.8 are output electrodes. Second
In the figure, 9 is a multi-pole magnetized rotary drum, 10 is a N-pole magnet, and 11 is a S-pole magnet. Hall effect detection part 1 and 2
The gap between them is equal to the pattern pitch V, and by narrowing this width, the pitch of the magnets 10 and 11 is also narrowed, and the pitch of m=p may be sufficient.

入力電極3,4に入力電圧が印加される。回転ドラム9
の磁極のパターンの中心では、出力電極6,6 ,7 
.8には電圧はでない。これをどちらかにずらすと 電
極6−6間及び電極7−8間に電圧が出力される。同5
−6間と同アー8間の電圧は、同レベルであるが、18
00位相がずれている。この為配線は、電極5と8を結
び電極eと7を結んで、合計の出力電圧をとると第5図
のようになる。
An input voltage is applied to input electrodes 3 and 4. rotating drum 9
At the center of the pattern of magnetic poles, the output electrodes 6, 6, 7
.. 8 has no voltage. When this is shifted in either direction, a voltage is output between electrodes 6-6 and between electrodes 7-8. Same 5
The voltages between -6 and -8 are at the same level, but 18
00 phase is shifted. For this reason, the wiring is as shown in FIG. 5 by connecting electrodes 5 and 8 and connecting electrodes e and 7 to obtain the total output voltage.

第3図は、従来品と本発明実施例製品とのFGパルス発
信周波数を比較した特性図で、回転ドラムを小型にして
本発明実施例製品を用いれば、従来と同様の性能を得る
ことができ、回転センサとしての機能を果すことが確認
できる。
Figure 3 is a characteristic diagram comparing the FG pulse oscillation frequencies of the conventional product and the product according to the present invention.If the rotary drum is made smaller and the product according to the present invention is used, the same performance as the conventional product can be obtained. It can be confirmed that it functions as a rotation sensor.

発明の効果 以上のように、本発明によれば実施例にして示したよう
に、多極着磁付回転ドラムを小型にしても本発明実施例
製品を用いることにより、従来と同様の精度でFGバ/
レス信号を発振させることが出来、超小型ブラシ1/ス
モーターを作或できるという効果が得られる。
Effects of the Invention As described above, according to the present invention, as shown in the embodiments, even if the multi-pole magnetized rotating drum is made smaller, by using the product of the embodiments of the present invention, it is possible to maintain the same accuracy as before. FGba/
It is possible to oscillate a response signal, and it is possible to produce an ultra-small brush 1/smoter.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例によるホ・一ル効果装置の構
造図、第2図はその使用例図、第3図は従来製品と本発
明実施例製品のFGパルス発信周波数を比較した特性図
、第4図は従来の磁気抵抗効果装置を使用した構造図、
第6図は本発明の一実施例のホーIレ効果装置の出力特
性図である。 1 .2・・・・・・ホール効果検出部分、3,4 ・
・・・入力電極、5 ,6 ,7 .8・・・・・出力
電極、9・・・・・・多極着磁付回転ドラム、1o・・
・・・・N極磁石・11・・・・・S極磁石、12・・
・・・・磁気抵抗効果装置。
Fig. 1 is a structural diagram of a hole effect device according to an embodiment of the present invention, Fig. 2 is an example of its use, and Fig. 3 is a comparison of the FG pulse oscillation frequency of a conventional product and a product of an embodiment of the present invention. Characteristic diagram, Figure 4 is a structural diagram using a conventional magnetoresistive device,
FIG. 6 is an output characteristic diagram of a Hohle effect device according to an embodiment of the present invention. 1. 2... Hall effect detection part, 3, 4 ・
...input electrodes, 5, 6, 7 . 8...Output electrode, 9...Rotating drum with multipolar magnetization, 1o...
...N pole magnet, 11...S pole magnet, 12...
...Magnetoresistance effect device.

Claims (1)

【特許請求の範囲】[Claims]  2個以上のホール効果検出部分を直列に接続され、各
々の上記ホール効果検出部分の入力が共通となっている
事を特徴とするホール効果装置。
A Hall effect device characterized in that two or more Hall effect detection parts are connected in series, and each of the Hall effect detection parts has a common input.
JP1151877A 1989-06-14 1989-06-14 Hall effect device Pending JPH0316282A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1151877A JPH0316282A (en) 1989-06-14 1989-06-14 Hall effect device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1151877A JPH0316282A (en) 1989-06-14 1989-06-14 Hall effect device

Publications (1)

Publication Number Publication Date
JPH0316282A true JPH0316282A (en) 1991-01-24

Family

ID=15528158

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1151877A Pending JPH0316282A (en) 1989-06-14 1989-06-14 Hall effect device

Country Status (1)

Country Link
JP (1) JPH0316282A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7540505B2 (en) 2002-02-06 2009-06-02 Toyota Jidosha Kabushiki Kaisha Stabilizer system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7540505B2 (en) 2002-02-06 2009-06-02 Toyota Jidosha Kabushiki Kaisha Stabilizer system

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