JPH0449804U - - Google Patents
Info
- Publication number
- JPH0449804U JPH0449804U JP9112490U JP9112490U JPH0449804U JP H0449804 U JPH0449804 U JP H0449804U JP 9112490 U JP9112490 U JP 9112490U JP 9112490 U JP9112490 U JP 9112490U JP H0449804 U JPH0449804 U JP H0449804U
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- slider
- slip
- potential
- reference resistor
- 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
- 238000005259 measurement 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)
Description
第１図は本考案に係るすべり抵抗器の摺動子位
置測定回路の一実施例を示す回路構成図、第２図
は従来の摺動子位置測定回路と本考案の摺動子位
置測定回路を比較した表、第３図は従来のすべり
抵抗器の摺動子位置測定回路の一例を示す回路構
成図である。
２……摺動子位置測定回路、２１……マルチプ
レクサ、２２……Ａ／Ｄ変換器、２３……マイク
ロプロセツサ、Ｖｒｅｆ……定電圧源、Ｒｒｅｆ
……基準抵抗Ｒ……すべり抵抗器、ｐ……摺動子
、ｒ１，ｒ２……配線抵抗。
Fig. 1 is a circuit configuration diagram showing an embodiment of a slider position measuring circuit for a sliding resistor according to the present invention, and Fig. 2 shows a conventional slider position measuring circuit and a slider position measuring circuit of the present invention. FIG. 3 is a circuit configuration diagram showing an example of a conventional slider position measuring circuit for a slip resistor. 2...Slider position measurement circuit, 21...Multiplexer, 22...A/D converter, 23...Microprocessor, V ref ... Constant voltage source, R ref
...Reference resistance R...Slip resistor, p...Slider, r1 , r2 ...Wiring resistance.
Claims (1)
る回路において、 定電圧を回路に供給する定電圧源と、 この定電圧源の高電位側に接続された基準抵抗
と、 この基準抵抗に直列接続されたすべり抵抗器と
、 前記基準抵抗の高電位側、前記基準抵抗の低電
位側、前記すべり抵抗器の摺動子の位置、及びこ
の測定回路の最も低電位側の点の４点を入力とす
るマルチプレクサと、 このマルチプレクサの出力値をＡ／Ｄ変換する
Ａ／Ｄ変換器と、 この変換値よりすべり抵抗器の摺動子の位置を
測定するマイクロプロセツサと、 を具備し、 前記マイクロプロセツサは、すべり抵抗器の摺
動子の位置を次式から算出することを特徴とする
すべり抵抗器の摺動子位置測定回路。 但し、 ｋ…すべり抵抗器の摺動子の抵抗に対する比率 Ｒ…すべり抵抗器の全抵抗値 Ｒｒｅｆ…基準抵抗の抵抗値 ｘ１…基準抵抗の低電位側の電位 ｘ２…基準抵抗の高電位側の電位 ｘ…すべり抵抗器の摺動子の接触点の電位 とする。[Claim for Utility Model Registration] In a circuit for measuring the slider position of a sliding resistor input card, a constant voltage source that supplies a constant voltage to the circuit, and a reference resistor connected to the high potential side of this constant voltage source. and a slip resistor connected in series to this reference resistor, the high potential side of the reference resistor, the low potential side of the reference resistor, the position of the slider of the slip resistor, and the lowest potential of this measurement circuit. A multiplexer that receives the four side points as input, an A/D converter that converts the output value of this multiplexer into A/D, and a microprocessor that measures the position of the slider of the slip resistor from this converted value. A slider position measuring circuit for a slip resistor, characterized in that the microprocessor calculates the position of the slider of the slip resistor from the following equation. However, k...Ratio to the resistance of the slider of the slip resistor R...Total resistance value of the slip resistor R ref ...Resistance value of the reference resistor x 1 ...Potential on the low potential side of the reference resistor x 2 ...High potential of the reference resistor Potential side potential x: Potential at the contact point of the slider of the slip resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9112490U JPH0725607Y2 (en) | 1990-08-30 | 1990-08-30 | Slip resistor slider position measurement circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9112490U JPH0725607Y2 (en) | 1990-08-30 | 1990-08-30 | Slip resistor slider position measurement circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0449804U true JPH0449804U (en) | 1992-04-27 |
| JPH0725607Y2 JPH0725607Y2 (en) | 1995-06-07 |
Family
ID=31826454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9112490U Expired - Lifetime JPH0725607Y2 (en) | 1990-08-30 | 1990-08-30 | Slip resistor slider position measurement circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0725607Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004245839A (en) * | 2003-02-12 | 2004-09-02 | Dialog Semiconductor Gmbh | Readout for detector |
| JP2012195764A (en) * | 2011-03-16 | 2012-10-11 | Ricoh Co Ltd | Ad converter, dial type input device and resistance-voltage conversion circuit |
-
1990
- 1990-08-30 JP JP9112490U patent/JPH0725607Y2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004245839A (en) * | 2003-02-12 | 2004-09-02 | Dialog Semiconductor Gmbh | Readout for detector |
| JP4698152B2 (en) * | 2003-02-12 | 2011-06-08 | ディアローク・セミコンダクター・ゲーエムベーハー | Reading the detector |
| JP2012195764A (en) * | 2011-03-16 | 2012-10-11 | Ricoh Co Ltd | Ad converter, dial type input device and resistance-voltage conversion circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0725607Y2 (en) | 1995-06-07 |