JPS58201428A - Magnetic signal transmitter - Google Patents
Magnetic signal transmitterInfo
- Publication number
- JPS58201428A JPS58201428A JP57085376A JP8537682A JPS58201428A JP S58201428 A JPS58201428 A JP S58201428A JP 57085376 A JP57085376 A JP 57085376A JP 8537682 A JP8537682 A JP 8537682A JP S58201428 A JPS58201428 A JP S58201428A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- output
- coil
- amplifier
- input
- 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
- 230000008054 signal transmission Effects 0.000 claims description 3
- 230000004907 flux Effects 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 2
- 238000001514 detection method Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive loop type
Abstract
Description
【発明の詳細な説明】
この発明は磁気抵抗素子を用いた磁気信号伝送装置（二
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic signal transmission device using a magnetoresistive element.
従来この槍の装置は磁気抵抗素子を永久ｉ石で付勢して
いたために装［をＩ・ウジング等にエリ密封することが
鍵かしくしたがって水中や悪環境下での使用が不可ｎ′
、、７であった。Conventionally, this spear device used a permanent magnet to energize the magnetoresistive element, so it was difficult to seal the device to the magnet, making it impossible to use it underwater or in bad environments.
,,7.
こＯ発明はこのような従来の欠点を解消しようとするも
ので、以下図に工ってこの発明の一実施ψ１１；ついて
説明する。The present invention aims to eliminate such conventional drawbacks, and one embodiment of the present invention ψ11 will be explained below with reference to the drawings.
すなわち第１図に示すブロック図において送信側回路は
コイルＬと、このコイルに流れる電流を制御する電流制
御器３お工びこのｔｍｍ器へ信号を入力する入力［１４
とから構成されている。１九受信側回路は磁気抵抗素子
ｌ：工や構成されたブリッジ回ｉ１ｉ％Ｂと、このブリ
ッジ回路の出力を増−する増幅器＾、増幅された信号を
基準電圧と比較してスイッチングするスイッチング［ｇ
Ｊｍｓと、このスイッチング回路の出力を外部（：出力
する出力部０１゛あ・工びこれらに電源を供給する電源
部Ｅに工り＊欧されている。That is, in the block diagram shown in FIG. 1, the transmitting side circuit includes a coil L, a current controller 3 that controls the current flowing through this coil, and an input [14] that inputs a signal to the TMM device.
It is composed of. 19 The receiving side circuit includes a bridge circuit made up of magnetoresistive elements, an amplifier that increases the output of this bridge circuit, and a switching device that compares the amplified signal with a reference voltage and performs switching. g
Jms and the output of this switching circuit to the outside (an output section 01 for outputting the output) and a power supply section E for supplying power to these.
第２図はこの発明の具体例を示すもので、この回路は送
信側回路１と受信側回路２とη・ら構成されている。送
信側回ｗ１１においてコイルＬの一端は電源の−１５の
端子１１−１また他端はトランジスタＴｒｉのコレクタ
に接続されている。トランジスタ１′ｒ１のエミッタは
電源の他方の端子ｂ（二、ま九ペースは抵抗Ｒ１を介し
て入力端子Ｃに接続されている。電源の一方の端子畠と
トランジスタＴｒｉのベース間（二は抵抗Ｒ２が、を九
そのベースと１１源の他方の端子す間には抵抗Ｒ３が接
続され、これらの抵抗に１つて分圧された′１！ｒａ−
がトランジスタＴｒｉのベース（二印加される。そして
トランジスタＴｒｉ、抵抗Ｒト４３により電流制振器３
が形成されている。FIG. 2 shows a specific example of the present invention, and this circuit is composed of a transmitting side circuit 1, a receiving side circuit 2, and .eta.. In the transmitting circuit w11, one end of the coil L is connected to the -15 terminal 11-1 of the power supply, and the other end is connected to the collector of the transistor Tri. The emitter of the transistor 1'r1 is connected to the input terminal C via the resistor R1 at the other terminal b of the power supply (the second terminal is connected to the input terminal C via the resistor R1). A resistor R3 is connected between the base of R2 and the other terminal of the source 11, and the voltage divided by one of these resistors is '1!ra-
is applied to the base of the transistor Tri (2).Then, the current damper 3 is applied to the base of the transistor Tri and the resistor R 43.
is formed.
また受信側回路２においてブリッジ回路Ｂは磁気抵抗効
果素子Ｍ１．Ｍ２．Ｍ３およびＭ４により構成され、こ
の出力端はたとえば差動増幅器等の増幅器ムの入力趨に
接続されている。この増幅器の出力端は電圧比較器Ｃｍ
の一方の端子に接続されている。電圧比較器Ｃｍの他方
の端子は抵抗Ｒ４，Ｒ５お工び可変抵抗器ｆＬＶ ｔ：
１９構成される基準１１圧発生器Ｇに接続され、かつそ
の出力端は抵抗Ｒ６を介して出力回路ＯＴを構成するト
ランジスタＴｒ２のベースにＭ！絞されている。このト
ランジスタのコレクタは出力端子の一方のｍ子Ｏ１に、
またそのエミッタは出力端子の他方の端子０２に接続さ
れている。また符号２は定電圧回路でトランジスタＴｒ
３、ツェナーダイオードＤＺ、ｔＫｆＬ７およびコンデ
ンサ０１により構成されている。なお符号Ｃ２はコンデ
ンサ、Ｒ８−Ｒ１３は抵抗である。Further, in the receiving side circuit 2, the bridge circuit B includes magnetoresistive effect elements M1. M2. The output terminal is connected to the input terminal of an amplifier such as a differential amplifier. The output terminal of this amplifier is the voltage comparator Cm
is connected to one terminal of the The other terminal of the voltage comparator Cm is connected to a variable resistor fLV t by resistors R4 and R5.
M!19 is connected to the reference 11 pressure generator G, and its output terminal is connected to the base of the transistor Tr2 constituting the output circuit OT via the resistor R6. It's being squeezed. The collector of this transistor is connected to one of the output terminals, O1,
Further, its emitter is connected to the other terminal 02 of the output terminals. Also, reference numeral 2 is a constant voltage circuit, which is a transistor Tr.
3, a Zener diode DZ, tKfL7, and a capacitor 01. Note that C2 is a capacitor, and R8 to R13 are resistors.
次に上配構敗（二おいて、送信側回路ｌの入力端Ｃ工り
入った信号によりトランジスタＴｒｉはオン・オフされ
、ＩｂＪ時≦：そのコレクタ電流もその入力信号によっ
てオン・オフし、これＣ：Ｌってコイルしは入力信号に
不じた磁束を断続的に発生する。そしてこの断続的な磁
束の変化は受信側回路２しブリッジ回路Ｂに工す検出さ
れ、さらにこの検出信号は稙幅甜Ａにエリ鯵）陥され、
この増幅器の出力Ｖｉイ圧比較＃ Ｏｍ により比較さ
れ、出力回路Ｏの入力となり、その出力端子０１．０２
に出力される。Next, the upper circuit fails (2) The transistor Tri is turned on and off by the elaborate signal at the input terminal C of the transmitting circuit l, and when IbJ≦: its collector current is also turned on and off by the input signal, This coil C:L intermittently generates a magnetic flux that is different from the input signal.This intermittent change in magnetic flux is detected by the receiving circuit 2 and sent to the bridge circuit B, and the detected signal is was defeated by A.
The output Vi of this amplifier is compared by the pressure comparison #Om, becomes the input of the output circuit O, and its output terminal 01.02
is output to.
また第３図は回路図中の各部の波形を示す。そして波形
ｈｒｉ入力信号、波形Ｂはコイル電流、波形Ｃはブリッ
ジ回路Ｂの出力、波形りは出力回路ＯＴの出力波形をそ
れぞれ示している。Further, FIG. 3 shows waveforms at various parts in the circuit diagram. The waveform hri input signal, waveform B shows the coil current, waveform C shows the output of the bridge circuit B, and waveform 2 shows the output waveform of the output circuit OT.
なお上記実施例において電流制御Ｉｌ器３はトランジス
タＴｒｉを用いたものについて説明したが、この制御器
はメカニカルなスイッチにより構成することも可能であ
る。In the above embodiment, the current control device 3 has been described as using a transistor Tri, but this controller can also be configured with a mechanical switch.
この発明は上述の工うに受信側回路を磁気抵抗素子のブ
リッジ回路を用いて構成するとともに送信側回路をブリ
ッジ回路を付勢するコイルとこのコイルに流れる電流を
制御する電流制振器に工す形成しているので、装置の構
成が単純で、安価に供給することかで斡、また送信側お
工び受信側をそれぞれ非磁性体金属やプラスチックハウ
ジング給に工りＶ封することができるので、水中や息環
境下での使用が可能となる祠点がある。In accordance with the above-described method, the receiving side circuit is constructed using a bridge circuit of a magnetic resistance element, and the transmitting side circuit is constructed using a coil that energizes the bridge circuit and a current damper that controls the current flowing through this coil. Since the structure of the device is simple and can be supplied at low cost, the transmitter side and receiver side can be made into non-magnetic metal or plastic housings and V-sealed. There are shrine points that can be used underwater or in a breathing environment.
第１図はこの発明における磁気信号伝送装置のブロック
図、第２図はこの兄明の一実施例を示す回路図、１８３
図は第２図における各部の波形を示す図である。FIG. 1 is a block diagram of a magnetic signal transmission device according to the present invention, and FIG. 2 is a circuit diagram showing an embodiment of this older brother.
The figure is a diagram showing waveforms of various parts in FIG. 2.
Claims (1)
ッジ回路の出力を増幅器の入力とするとともにこの増幅
器の出力を電圧比較器の一力の入力（二接続し、かつこ
の′Ｎ電圧比較器他力の入力を基準電子発生回路に接続
し、さらにＬ記電圧比較器の出力を出力回路に接続して
受信側回路を形成し、−万上記ブリッジ回路を付勢する
コイルとこのコイルに流れる電流を制御する電流制御器
に工す送信側回路を形成した磁気信号伝送装置。A bridge circuit is formed using magnetoresistive elements, and the output of this bridge circuit is used as the input of an amplifier, and the output of this amplifier is connected to one input of a voltage comparator. Connect the input to the reference electron generation circuit, and further connect the output of the voltage comparator L to the output circuit to form a receiving circuit, and control the coil that energizes the bridge circuit and the current flowing through this coil. A magnetic signal transmission device with a transmitter circuit built into a current controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57085376A JPS58201428A (en) | 1982-05-20 | 1982-05-20 | Magnetic signal transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57085376A JPS58201428A (en) | 1982-05-20 | 1982-05-20 | Magnetic signal transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58201428A true JPS58201428A (en) | 1983-11-24 |
Family
ID=13857000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57085376A Pending JPS58201428A (en) | 1982-05-20 | 1982-05-20 | Magnetic signal transmitter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58201428A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1772295A1 (en) * | 2005-10-10 | 2007-04-11 | Infineon Technologies SensoNor AS | Low frequency receiver with magnetically sensitive detector element |
-
1982
- 1982-05-20 JP JP57085376A patent/JPS58201428A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1772295A1 (en) * | 2005-10-10 | 2007-04-11 | Infineon Technologies SensoNor AS | Low frequency receiver with magnetically sensitive detector element |
| JP2007106401A (en) * | 2005-10-10 | 2007-04-26 | Infineon Technologies Sensonor As | Tire air pressure monitoring system, tire module and receiver |
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