JPH0340579U - - Google Patents

Info

Publication number
JPH0340579U
JPH0340579U JP10247189U JP10247189U JPH0340579U JP H0340579 U JPH0340579 U JP H0340579U JP 10247189 U JP10247189 U JP 10247189U JP 10247189 U JP10247189 U JP 10247189U JP H0340579 U JPH0340579 U JP H0340579U
Authority
JP
Japan
Prior art keywords
magnetoresistive element
common potential
potential point
magnetic field
magnetoresistive
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
Application number
JP10247189U
Other languages
Japanese (ja)
Other versions
JPH0642223Y2 (en
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 filed Critical
Priority to JP10247189U priority Critical patent/JPH0642223Y2/en
Publication of JPH0340579U publication Critical patent/JPH0340579U/ja
Application granted granted Critical
Publication of JPH0642223Y2 publication Critical patent/JPH0642223Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Landscapes

  • Measuring Magnetic Variables (AREA)
  • Magnetic Heads (AREA)

Description

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

第１図は本考案の１実施例の構成を示す回路図
、第２図は本考案の他の実施例の構成を示す回路
図、第３図は従来の磁場検出回路の構成を示す回
路図である。 Ｅｒ……基準電源、Ｑ１……演算増幅器、ＭＲ
１〜ＭＲ４……磁気抵抗素子、Ｒ２……感温素子
。 Fig. 1 is a circuit diagram showing the structure of one embodiment of the present invention, Fig. 2 is a circuit diagram showing the structure of another embodiment of the present invention, and Fig. 3 is a circuit diagram showing the structure of a conventional magnetic field detection circuit. It is. Er...Reference power supply, Q1 ...Operation amplifier, MR
1 to MR4 ... Magnetoresistive element, R2 ... Temperature sensing element.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 磁場の印加により互いに逆方向に抵抗を変化さ
せる少なくとも一対の磁気抵抗素子と、入力端の
一端に共通電位点に対して基準電圧が印加され前
記磁気抵抗素子の一端が出力端に接続されると共
にその他端が入力端の他端に接続された演算増幅
器と、前記磁気抵抗素子の他端と前記共通電位点
との間に接続された抵抗と、一端に所定の電圧が
印加されその他端が前記磁気抵抗素子の他端に接
続された前記磁気抵抗素子とは逆の温度係数を持
つ感温素子とを有し、前記磁気抵抗素子から前記
磁場に対応した出力信号を得るようにしたことを
特徴とする磁気検出回路。 at least a pair of magnetoresistive elements whose resistances change in opposite directions when a magnetic field is applied; a reference voltage is applied to one end of an input terminal with respect to a common potential point; one end of the magnetoresistive element is connected to an output terminal; an operational amplifier whose other end is connected to the other end of the input terminal; a resistor connected between the other end of the magnetoresistive element and the common potential point; and a predetermined voltage applied to one end and the other end connected to the common potential point. A temperature sensing element having a temperature coefficient opposite to that of the magnetoresistive element is connected to the other end of the magnetoresistive element, and an output signal corresponding to the magnetic field is obtained from the magnetoresistive element. magnetic detection circuit.
JP10247189U 1989-08-31 1989-08-31 Magnetic detection circuit Expired - Lifetime JPH0642223Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10247189U JPH0642223Y2 (en) 1989-08-31 1989-08-31 Magnetic detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10247189U JPH0642223Y2 (en) 1989-08-31 1989-08-31 Magnetic detection circuit

Publications (2)

Publication Number Publication Date
JPH0340579U true JPH0340579U (en) 1991-04-18
JPH0642223Y2 JPH0642223Y2 (en) 1994-11-02

Family

ID=31651366

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10247189U Expired - Lifetime JPH0642223Y2 (en) 1989-08-31 1989-08-31 Magnetic detection circuit

Country Status (1)

Country Link
JP (1) JPH0642223Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63107530A (en) * 1986-10-23 1988-05-12 Nec Kyushu Ltd Resin sealing mold for multi-molding

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63107530A (en) * 1986-10-23 1988-05-12 Nec Kyushu Ltd Resin sealing mold for multi-molding
JPH0469533B2 (en) * 1986-10-23 1992-11-06 Kyushu Nippon Electric

Also Published As

Publication number Publication date
JPH0642223Y2 (en) 1994-11-02

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