JPH0221581U - - Google Patents
Info
- Publication number
- JPH0221581U JPH0221581U JP1988101066U JP10106688U JPH0221581U JP H0221581 U JPH0221581 U JP H0221581U JP 1988101066 U JP1988101066 U JP 1988101066U JP 10106688 U JP10106688 U JP 10106688U JP H0221581 U JPH0221581 U JP H0221581U
- Authority
- JP
- Japan
- Prior art keywords
- midpoint
- variable
- resistance
- magnetoresistive
- magnetic field
- 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
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measuring Magnetic Variables (AREA)
Description
第１図は本考案の１実施例の構成を示す回路図
、第２図は従来の磁場検出回路の構成を示す回路
図である。
１０……第２直列回路、１１……第３直列回路
、１２……第１直列回路、Ｒ１〜Ｒ４……抵抗、
Ｒ５，Ｒ６……磁気抵抗素子、Ｂ……磁場。
FIG. 1 is a circuit diagram showing the configuration of an embodiment of the present invention, and FIG. 2 is a circuit diagram showing the configuration of a conventional magnetic field detection circuit. 10...Second series circuit, 11...Third series circuit, 12...First series circuit, R1 to R4 ...Resistance,
R5 , R6 ... Magnetoresistive element, B... Magnetic field.
Claims (1)
する一対の第１、第２磁気抵抗素子と、この一対
の第１、第２磁気抵抗素子の各一端の間に両端が
接続された第１可変抵抗素子と、前記一対の磁気
抵抗素子の各他端の間に第１抵抗と第２可変抵抗
素子と第２抵抗とが直列に接続された第１直列回
路と、前記直列回路の両端に印加される電源とを
有し、所定の温度範囲の上限において前記第１磁
気抵抗素子の他端と前記第１可変抵抗素子の中点
とで形成される第２直列回路の温度係数と前記第
２磁気抵抗素子の他端と前記第１可変抵抗素子の
中点とで形成される第３直列回路の温度係数とが
等しくなるように前記第１可変抵抗の中点の位置
を選定すると共に前記第１、第２可変抵抗の各中
点に現れるオフセツト電圧がゼロになるように前
記第２可変抵抗の中点の位置を選定し、前記磁場
に対応する出力電圧を前記第１、第２可変抵抗素
子の各中点から出力するようにしたことを特徴と
する磁場検出回路。 a pair of first and second magnetoresistive elements whose resistances change when a magnetic field is applied; and a first magnetoresistive element whose both ends are connected between one end of each of the pair of first and second magnetoresistive elements. a variable resistance element, a first series circuit in which a first resistance, a second variable resistance element, and a second resistance are connected in series between each other end of the pair of magnetic resistance elements; and a temperature coefficient of a second series circuit formed by the other end of the first magnetoresistive element and the midpoint of the first variable resistance element at the upper limit of a predetermined temperature range; The position of the midpoint of the first variable resistor is selected so that the temperature coefficient of the third series circuit formed by the other end of the second magnetoresistive element and the midpoint of the first variable resistor is equal, and the The position of the midpoint of the second variable resistor is selected so that the offset voltage appearing at the midpoint of each of the first and second variable resistors becomes zero, and the output voltage corresponding to the magnetic field is set between the first and second variable resistors. A magnetic field detection circuit characterized in that output is output from each midpoint of a resistive element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988101066U JPH0717029Y2 (en) | 1988-07-29 | 1988-07-29 | Magnetic field detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988101066U JPH0717029Y2 (en) | 1988-07-29 | 1988-07-29 | Magnetic field detection circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0221581U true JPH0221581U (en) | 1990-02-13 |
| JPH0717029Y2 JPH0717029Y2 (en) | 1995-04-19 |
Family
ID=31329719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988101066U Expired - Lifetime JPH0717029Y2 (en) | 1988-07-29 | 1988-07-29 | Magnetic field detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0717029Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016223974A (en) * | 2015-06-02 | 2016-12-28 | エスアイアイ・セミコンダクタ株式会社 | Temperature compensation circuit and sensor device |
-
1988
- 1988-07-29 JP JP1988101066U patent/JPH0717029Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016223974A (en) * | 2015-06-02 | 2016-12-28 | エスアイアイ・セミコンダクタ株式会社 | Temperature compensation circuit and sensor device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0717029Y2 (en) | 1995-04-19 |