JPH10320060A - Simulation circuit for variable resistance - Google Patents
Simulation circuit for variable resistanceInfo
- Publication number
- JPH10320060A JPH10320060A JP9130694A JP13069497A JPH10320060A JP H10320060 A JPH10320060 A JP H10320060A JP 9130694 A JP9130694 A JP 9130694A JP 13069497 A JP13069497 A JP 13069497A JP H10320060 A JPH10320060 A JP H10320060A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuit
- resistance
- variable resistor
- value
- 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
Landscapes
- Control Of Voltage And Current In General (AREA)
Abstract
(57)【要約】
【課題】可変抵抗器において最大値が抵抗部の値によ
る、設定に時間がかかる、短寿命である問題点を解決す
るための電気式可変抵抗の模擬発生回路。
【解決手段】電圧源に対して２種類の抵抗を直列に入れ
た場合抵抗値に比例した電圧が発生する。抵抗に変わり
電圧をコントロールすることにより模擬抵抗値を電気的
に得る回路。
(57) [Summary] An electric variable resistor simulation generation circuit for solving the problem that it takes a long time to set and has a short life in a variable resistor in which a maximum value is determined by a value of a resistance part. When two kinds of resistors are connected in series to a voltage source, a voltage proportional to the resistance value is generated. A circuit that electrically obtains a simulated resistance value by controlling voltage instead of resistance.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は可変抵抗器を使用し
た電気信号発生回路に係り、特に応答速度を早く寿命を
長くするものに好適な電気抵抗に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric signal generating circuit using a variable resistor, and more particularly to an electric resistance suitable for a circuit having a high response speed and a long life.
【０００２】[0002]
【従来の技術】可変抵抗器は電気抵抗部と接触部があ
り、接触部を機械的に移動することにより可変の電気抵
抗を発生させていたので、発生させる抵抗値の大きさは
電気抵抗部の大きさに限定されてしまう、接触部の移動
に時間がかかる、摩耗・接触不良による短寿命のような
欠点があった。2. Description of the Related Art A variable resistor has an electric resistance portion and a contact portion, and a variable electric resistance is generated by mechanically moving the contact portion. However, there are disadvantages such as being limited to the size, a long time to move the contact portion, and a short life due to wear and poor contact.
【０００３】[0003]
【発明が解決しようとする課題】本発明の目的は、可変
抵抗器において発生させる抵抗の最大値が電気抵抗部に
よって決定される、設定に時間がかかる，短寿命であ
る、という問題点を解決するための電気式可変抵抗の発
生回路を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to solve the problems that the maximum value of the resistance generated in the variable resistor is determined by the electric resistance section, that it takes a long time to set, and that it has a short life. And a circuit for generating an electric variable resistor.
【０００４】[0004]
【課題を解決するための手段】本発明の考え方を説明す
る。Ｖ１の電圧に対して抵抗１（Ｒ１）抵抗２(Ｒ２)を
直列に入れた場合の抵抗間の電圧Ｖ２，Ｖ３はそれぞれ
Ｖ２＝Ｒ１÷（Ｒ１＋Ｒ２）×Ｖ１，Ｖ３＝Ｒ２÷（Ｒ
１＋Ｒ２）×Ｖ１によって求められる。The concept of the present invention will be described. When the resistor 1 (R1) and the resistor 2 (R2) are inserted in series with respect to the voltage V1, the voltages V2 and V3 between the resistors are V2 = R1 ÷ (R1 + R2) × V1, V3 = R2 ÷ (R
1 + R2) × V1.
【０００５】電圧コントローラによって電圧Ｖ３を発生
させれば、この電圧コントローラは疑似的に抵抗２（Ｒ
２）と同等な抵抗値を発生させているという考え方によ
り得られた。When the voltage V3 is generated by the voltage controller, the voltage controller simulates the resistance 2 (R
It was obtained by the idea that a resistance value equivalent to 2) was generated.
【０００６】本発明の電圧コントローラの考え方を図１
により説明する。外部より入力された電圧信号はスイッ
チング回路１により一定のパルス信号とする。このパル
ス信号のパルス幅は比較制御回路４よりのコントロール
信号により変化させ、任意の電圧を得ることができる。FIG. 1 shows the concept of the voltage controller of the present invention.
This will be described below. The voltage signal input from the outside is converted into a constant pulse signal by the switching circuit 1. The pulse width of the pulse signal is changed by a control signal from the comparison control circuit 4 to obtain an arbitrary voltage.
【０００７】制御された電圧は、基準抵抗回路２により
基準となる電圧を発生する。この基準電圧とスイッチン
グ回路１にて得られた電圧と、外部指令電圧を演算回路
５によって演算することにより、コントロール信号を発
生させ、外部指令電圧に比例した抵抗相当分の電圧を発
生させる。発生電圧は矩形波となるので平滑回路５によ
り波形整形する。The controlled voltage generates a reference voltage by the reference resistance circuit 2. The arithmetic circuit 5 calculates the reference voltage, the voltage obtained by the switching circuit 1, and the external command voltage, thereby generating a control signal and generating a voltage corresponding to a resistance proportional to the external command voltage. Since the generated voltage is a rectangular wave, the waveform is shaped by the smoothing circuit 5.
【０００８】[0008]
【発明の実施の形態】本発明の一実施例を図２によって
説明する。６に入力された電圧は、リレー１６によりス
イッチングされ基準抵抗８を通じて７に出力される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIG. The voltage input to 6 is switched by the relay 16 and output to 7 through the reference resistor 8.
【０００９】出力信号７はスイッチングによる矩形波と
なるのでコンデンサ９により平滑されて出力する。入力
電圧，スイッチング電圧，出力電圧は差動増幅器１０に
入力され、各々の電圧差が出力される。基準抵抗間の電
圧Ｖ４と１２の設定入力電圧Ｖ５は演算増幅器１１に入
力され、Ｖ４×Ｖ５の出力Ｖ６を得る。Ｖ６とスイッチ
ング間電圧Ｖ７を増幅器１３に入力し、比較演算する。
三角波発生回路１５による基準波形電圧と増幅器１３の
電圧を比較器１４により比較し、結果によりリレー１６
のＯＮ，ＯＦＦを制御する。The output signal 7 becomes a rectangular wave due to the switching, and is output after being smoothed by the capacitor 9. The input voltage, the switching voltage, and the output voltage are input to the differential amplifier 10, and each voltage difference is output. The set input voltage V5 between the voltages V4 and 12 between the reference resistors is input to the operational amplifier 11, and an output V6 of V4 × V5 is obtained. V6 and the switching voltage V7 are input to the amplifier 13, and a comparison operation is performed.
The comparator 14 compares the reference waveform voltage by the triangular wave generation circuit 15 with the voltage of the amplifier 13, and based on the result, the relay 16.
ON and OFF are controlled.
【００１０】これにより、コントロール電圧１２に対し
て比例した（スイッチング電圧÷基準電圧）を得ること
が出来る。この電圧は、擬似的な抵抗値に相当する。こ
の時の出力抵抗値は基準抵抗値より無限大の大きさまで
制御することが可能となる。As a result, it is possible to obtain a value proportional to the control voltage 12 (switching voltage / reference voltage). This voltage corresponds to a pseudo resistance value. The output resistance value at this time can be controlled to an infinite value from the reference resistance value.
【００１１】[0011]
【発明の効果】高速な応答と長寿命な疑似電気抵抗が得
られ、可変抵抗器による制御回路に効果がある。As described above, a high-speed response and a long life pseudo electric resistance can be obtained, which is effective for a control circuit using a variable resistor.
【図１】本発明の可変抵抗の模擬発生回路のブロック図
である。FIG. 1 is a block diagram of a simulation circuit for generating a variable resistor according to the present invention.
【図２】本発明の可変抵抗の模擬発生回路の回路図を示
す。FIG. 2 is a circuit diagram of a simulation circuit for generating a variable resistor according to the present invention.
８…基準抵抗、１０…差動増幅器、１１…演算増幅器、
１３…増幅器、１４…比較器、１５…三角波発生器、１
６…リレー。8: reference resistance, 10: differential amplifier, 11: operational amplifier,
13 amplifier, 14 comparator, 15 triangle wave generator, 1
6 ... Relay.
Claims (1)
電気回路において、外部電気信号により電気抵抗を発生
させ、応答速度を早くし寿命を長くすることを特徴とす
る電気抵抗の模擬発生回路。1. An electric circuit comprising a power supply section, a variable resistor and a voltage detecting section, wherein an electric resistance is generated by an external electric signal, whereby a response speed is increased and a life is prolonged. circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9130694A JPH10320060A (en) | 1997-05-21 | 1997-05-21 | Simulation circuit for variable resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9130694A JPH10320060A (en) | 1997-05-21 | 1997-05-21 | Simulation circuit for variable resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10320060A true JPH10320060A (en) | 1998-12-04 |
Family
ID=15040397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9130694A Pending JPH10320060A (en) | 1997-05-21 | 1997-05-21 | Simulation circuit for variable resistance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10320060A (en) |
-
1997
- 1997-05-21 JP JP9130694A patent/JPH10320060A/en active Pending
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