JPH0640289B2 - Non-linear temperature compensation circuit - Google Patents
Non-linear temperature compensation circuitInfo
- Publication number
- JPH0640289B2 JPH0640289B2 JP8294689A JP8294689A JPH0640289B2 JP H0640289 B2 JPH0640289 B2 JP H0640289B2 JP 8294689 A JP8294689 A JP 8294689A JP 8294689 A JP8294689 A JP 8294689A JP H0640289 B2 JPH0640289 B2 JP H0640289B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- circuit
- resistor
- diode
- linear
- 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.)
- Expired - Lifetime
Links
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Control Of Voltage And Current In General (AREA)
- Control Of Electrical Variables (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、非直線温度補償回路に関し、特に非直線性の
温度特性をもつた回路の温度特性を補償する非直線温度
補償回路に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-linear temperature compensation circuit, and more particularly to a non-linear temperature compensation circuit that compensates the temperature characteristic of a circuit having non-linear temperature characteristics.
（従来の技術） 第２図に従来の温度補償回路の一例を示す。第２図にお
いて、正の電源＋Ｖに接続された抵抗器１の他端が温度
補償用ダイオード２のアノードに接続され、カソードが
抵抗器２の一端に接続され、その他端が負電源−Ｖに接
続された回路構成となつている。(Prior Art) FIG. 2 shows an example of a conventional temperature compensation circuit. In FIG. 2, the other end of the resistor 1 connected to the positive power supply + V is connected to the anode of the temperature compensating diode 2, the cathode is connected to one end of the resistor 2, and the other end is connected to the negative power supply -V. It has a connected circuit configuration.
非直線性の温度特性をもつた回路４はダイオード２のア
ノードに接続され、温度補償制御電圧Ｖ１が供給され
る。温度補償用ダイオード２は非直線性の温度特性に対
し、直線性の温度特性を持つているため、各特性の傾き
を平均的に合せ込んだ温度補償を行うことができる。The circuit 4 having a non-linear temperature characteristic is connected to the anode of the diode 2 and supplied with the temperature compensation control voltage V 1 . Since the temperature compensating diode 2 has a linear temperature characteristic with respect to a non-linear temperature characteristic, it is possible to perform temperature compensation in which the slopes of the respective characteristics are averagely matched.
（発明が解決しようとする課題） この従来の温度補償回路の温度補償制御電圧Ｖ１の特性
を第３図に示す。第３図において、Ｖ１は線１のような
直線となつている。一方、非直線性の温度特性をもつた
回路４は第３図の点線２のように非直線の特性となつて
いる。このため従来のＶ１特性は最適な温度制御電圧で
はなく、温度特性が大幅に劣化するという欠点があつ
た。(Problems to be Solved by the Invention) FIG. 3 shows the characteristics of the temperature compensation control voltage V 1 of this conventional temperature compensation circuit. In FIG. 3, V 1 is a straight line like line 1. On the other hand, the circuit 4 having a non-linear temperature characteristic has a non-linear characteristic as indicated by a dotted line 2 in FIG. Therefore, the conventional V 1 characteristic is not an optimum temperature control voltage, and the temperature characteristic is significantly deteriorated.
本発明の目的は非直線性の温度特性を持つた回路の非直
線特性を良好に補償することができる非直線温度補償回
路を提供することにある。An object of the present invention is to provide a non-linear temperature compensating circuit which can favorably compensate the non-linear characteristic of a circuit having a non-linear temperature characteristic.
（課題を解決するための手段） 前記目的を達成するために本発明による非直線温度補償
回路は第１の抵抗、温度補償用ダイオード、および第２
の抵抗をこの順序で接続した直列回路を、正の電源端子
と負の電源端子との間に接続し、前記第１の抵抗と温度
補償用ダイオードのアノードとの接続点に、補償を行な
うべく非直線の温度特性をもつた回路を接続する非直線
温度補償回路において、非直線補償用サーミスタと第３
の抵抗との直列回路を、前記温度補償用ダイオードと第
２の抵抗よりなる直列回路に並列に接続して構成してあ
る。(Means for Solving the Problems) In order to achieve the above object, a nonlinear temperature compensation circuit according to the present invention includes a first resistor, a temperature compensation diode, and a second temperature compensation diode.
A series circuit in which the resistors are connected in this order is connected between the positive power supply terminal and the negative power supply terminal, and compensation is performed at the connection point between the first resistance and the anode of the temperature compensation diode. In a non-linear temperature compensation circuit connecting a circuit having a non-linear temperature characteristic, a non-linear compensation thermistor and a third
Is connected in parallel to the series circuit including the temperature compensating diode and the second resistor.
このような構成によれば並列接続された非直線補償用サ
ーミスタの抵抗値が温度により変化することにより、温
度補償用ダイオードに流れる電流つまりダイオードのＶ
−Ｉ特性の非直線部分の電流が変化し、温度による傾き
が調整され、非直線特性が補償される。With such a configuration, the resistance value of the non-linear compensation thermistors connected in parallel changes with temperature, so that the current flowing through the temperature compensation diode, that is, the V of the diode.
The current in the non-linear portion of the −I characteristic changes, the slope due to temperature is adjusted, and the non-linear characteristic is compensated.
（実施例） 以下、図面を参照して本発明をさらに詳しく説明する。(Example) Hereinafter, the present invention will be described in more detail with reference to the drawings.
第１図は本発明による非直線補償回路の一実施例を示す
回路図である。FIG. 1 is a circuit diagram showing an embodiment of a nonlinear compensation circuit according to the present invention.
第１図において、正の電源＋Ｖと接続された抵抗器１が
温度補償用ダイオード２（以下ダイオードと略称す）お
よび抵抗器３に各々直列接続され、抵抗器３の他端が負
電源−Ｖに接続されている。さらに直列接続されている
ダイオード２のアノードと抵抗器３の負電源−Ｖ側の両
端に、非直線補償サーミスタ５（以下サーミスタと略称
す）と直列接続された抵抗器６が並列に接続されてい
る。In FIG. 1, a resistor 1 connected to a positive power source + V is serially connected to a temperature compensating diode 2 (hereinafter abbreviated as a diode) and a resistor 3, and the other end of the resistor 3 is a negative power source −V. It is connected to the. Further, a resistor 6 connected in series with a non-linear compensation thermistor 5 (hereinafter abbreviated as a thermistor) is connected in parallel with both ends of the anode of the diode 2 and the negative power source −V side of the resistor 3 which are connected in series. There is.
そして非直線の温度特性をもつた回路４がダイオード２
のアノードに接続され、温度補償制御電圧Ｖ１が供給さ
れる。The circuit 4 having a non-linear temperature characteristic is a diode 2
, And the temperature compensation control voltage V 1 is supplied.
この非直線温度補償回路では非直線の温度特性をもつた
回路４（以下温特回路と略称す）の入力電圧つまり、各
温度に対する温度補償制御電圧Ｖ１は第３図の点線２の
ようになる。この第３図の点線２を補償するために、ダ
イオード２に流れる電流を抵抗器３で調整し、ダイオー
ド２のＶ−Ｉ特性の非直線部分の電流Ｉとなるようにす
る。さらにサーミスタ５の直列に接続されている抵抗器
６を調整し、ある温度でサーミスタ５に流れる電流Ｉ１
が変化したとき、ダイオード２に流れる電流Ｉも変化す
るようにしている。この結果、温度補償制御電圧Ｖ１が
変化し補償値が非直線となる。つまり、温度が低くなつ
たとき、サーミスタ５の抵抗値が大きくなるのでダイオ
ード２に流れる電流Ｉが大きくなりダイオード２のＶ−
Ｉ特性の低温側の温度特性傾斜が大きくなり、第３図の
線３のような特性を有することになる。逆に温度が高く
なつたとき、サーミスタ５の抵抗値が小さくなるので電
流Ｉ１が大きくなり、ダイオード２に流れる電流Ｉが小
さくなりダイオード２の高温側のＶ−Ｉ特性の斜傾が小
さくなり第３図の線３のような特性となる。In this non-linear temperature compensation circuit, the input voltage of the circuit 4 having a non-linear temperature characteristic (hereinafter abbreviated as temperature special circuit), that is, the temperature compensation control voltage V 1 for each temperature is as shown by the dotted line 2 in FIG. Become. In order to compensate for the dotted line 2 in FIG. 3, the current flowing through the diode 2 is adjusted by the resistor 3 so that it becomes the current I in the non-linear portion of the VI characteristic of the diode 2. Further, by adjusting the resistor 6 connected in series with the thermistor 5, the current I 1 flowing through the thermistor 5 at a certain temperature
Is changed, the current I flowing through the diode 2 is also changed. As a result, the temperature compensation control voltage V 1 changes and the compensation value becomes non-linear. That is, when the temperature becomes low, the resistance value of the thermistor 5 increases, so that the current I flowing in the diode 2 increases and V− of the diode 2 increases.
The temperature characteristic slope of the I characteristic on the low temperature side becomes large, and the characteristic shown by the line 3 in FIG. 3 is obtained. On the contrary, when the temperature rises, the resistance value of the thermistor 5 decreases, so that the current I 1 increases, the current I flowing through the diode 2 decreases, and the inclination of the VI characteristic on the high temperature side of the diode 2 decreases. The characteristic is as shown by line 3 in FIG.
したがつて、回路４への入力電圧つまり温度補償制御電
圧Ｖ１は、ダイオード２に流れる電流Ｉを抵抗器３およ
びサーミスタ５に流れる電流Ｉ１を抵抗器６で調整する
ことにより最適な傾斜となる。It was but connexion, input voltage, i.e. the temperature compensation control voltages V 1 to the circuit 4, the optimum slope and by adjusting the current I 1 flowing through the current I flowing through the diode 2 into the resistor 3 and the thermistor 5 at the resistor 6 Become.
（発明の効果） 以上、説明したように本発明は、ダイオードと第２の抵
抗器の直列回路に、サーミスタと第３の抵抗器を並列接
続してあるので、温度変動が生じた場合、サーミスタの
抵抗値が変化し、これに従つてダイオードに流れる電流
が変化し、その結果、ダイオードのＶ−Ｉ特性の温度に
よる傾きが変化し、被補償回路に対し、良好な温度補償
制御電圧を与えることができる。(Effect of the Invention) As described above, according to the present invention, the thermistor and the third resistor are connected in parallel to the series circuit of the diode and the second resistor. Resistance value changes, and accordingly the current flowing through the diode changes, and as a result, the inclination of the VI characteristic of the diode due to temperature changes, and a good temperature compensation control voltage is applied to the compensated circuit. be able to.
本発明ではダイオードに直列に接続された第２の抵抗器
およびサーミスタに直列に接続されている第３の抵抗値
の値を変えることにより、被補償回路の被直線温度特性
に容易に調整できるという効果がある。According to the present invention, the linear temperature characteristic of the compensated circuit can be easily adjusted by changing the value of the second resistor connected in series with the diode and the third resistance value connected in series with the thermistor. effective.
第１図は、本発明による非直線温度補償回路の一実施例
を示す回路図、第２図は、従来の非直線温度補償回路の
一例を示す回路図、第３図は、温度対制御電圧の関係を
示した図である。 １，３，６……抵抗器 ２……温度補償用ダイオード ４……非直線の温度特性をもつた回路 ５……非直線補償用サーミスタ ＋Ｖ……正の電源 −Ｖ……負電源 Ｉ，Ｉ１……電流FIG. 1 is a circuit diagram showing an embodiment of a nonlinear temperature compensation circuit according to the present invention, FIG. 2 is a circuit diagram showing an example of a conventional nonlinear temperature compensation circuit, and FIG. 3 is a temperature vs. control voltage. It is the figure which showed the relationship of. 1, 3, 6 ... Resistor 2 ... Temperature compensating diode 4 ... Circuit having non-linear temperature characteristics 5 ... Non-linear compensating thermistor + V ... Positive power supply -V ... Negative power supply I, I 1 ... current
Claims (1)
び第２の抵抗をこの順序で接続した直列回路を、正の電
源端子と負の電源端子との間に接続し、前記第１の抵抗
と温度補償用ダイオードのアノードとの接続点に、補償
を行なうべく非直線の温度特性をもつた回路を接続する
非直線温度補償回路において、非直線補償用サーミスタ
と第３の抵抗との直列回路を、前記温度補償用ダイオー
ドと第２の抵抗よりなる直列回路に並列に接続したこと
を特徴とする非直線温度補償回路。1. A series circuit in which a first resistor, a temperature compensating diode, and a second resistor are connected in this order is connected between a positive power source terminal and a negative power source terminal, and the first resistor is connected. In a non-linear temperature compensating circuit in which a circuit having a non-linear temperature characteristic is connected at the connection point between the resistor and the anode of the temperature compensating diode, a non-linear compensating thermistor and a third resistor are connected in series. A non-linear temperature compensation circuit, wherein the circuit is connected in parallel to a series circuit composed of the temperature compensation diode and a second resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8294689A JPH0640289B2 (en) | 1989-03-31 | 1989-03-31 | Non-linear temperature compensation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8294689A JPH0640289B2 (en) | 1989-03-31 | 1989-03-31 | Non-linear temperature compensation circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02260012A JPH02260012A (en) | 1990-10-22 |
| JPH0640289B2 true JPH0640289B2 (en) | 1994-05-25 |
Family
ID=13788386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8294689A Expired - Lifetime JPH0640289B2 (en) | 1989-03-31 | 1989-03-31 | Non-linear temperature compensation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0640289B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020050833A1 (en) * | 2018-09-05 | 2020-03-12 | Medisim Usa | Temperature sensor calibration |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4313698B2 (en) | 2004-02-27 | 2009-08-12 | 株式会社エヌ・ティ・ティ・データ | Electronic document processing apparatus, electronic document processing method, and electronic document processing program |
-
1989
- 1989-03-31 JP JP8294689A patent/JPH0640289B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4313698B2 (en) | 2004-02-27 | 2009-08-12 | 株式会社エヌ・ティ・ティ・データ | Electronic document processing apparatus, electronic document processing method, and electronic document processing program |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02260012A (en) | 1990-10-22 |
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