JPH0480137U - - Google Patents
Info
- Publication number
- JPH0480137U JPH0480137U JP12411490U JP12411490U JPH0480137U JP H0480137 U JPH0480137 U JP H0480137U JP 12411490 U JP12411490 U JP 12411490U JP 12411490 U JP12411490 U JP 12411490U JP H0480137 U JPH0480137 U JP H0480137U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- switch
- controlled oscillator
- conversion value
- analog
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Analogue/Digital Conversion (AREA)
Description
第１図は本考案の実施例の構成図、第２図から
第４図までは従来のこの種のアナログ・デイジタ
ル変換器の構成図である。
１……被測定電圧、２……デイジタル変換値、
３……タイマ、４……スイツチ、５……電圧制御
発振器、６ａ……周波数カウンタ、６ｂ……時間
カウンタ、７……基準電圧発生器、８……積分器
、９……コンパレータ、１０……制御ロジツク部
、１１……発振器。
FIG. 1 is a block diagram of an embodiment of the present invention, and FIGS. 2 to 4 are block diagrams of conventional analog-to-digital converters of this type. 1...Voltage to be measured, 2...Digital conversion value,
3...Timer, 4...Switch, 5...Voltage controlled oscillator, 6a...Frequency counter, 6b...Time counter, 7...Reference voltage generator, 8...Integrator, 9...Comparator, 10... ...control logic section, 11...oscillator.
Claims (1)
定電圧を入力する電圧制御発振器を備え、前記電
圧制御発振器の出力周波数を計測しデイジタル変
換値として出力する周波数カウンタとを備えたこ
とを特徴とするアナログ・デイジタル変換器。 It is characterized by comprising one switch, a voltage-controlled oscillator that inputs the voltage to be measured via the switch, and a frequency counter that measures the output frequency of the voltage-controlled oscillator and outputs it as a digital conversion value. Analog to digital converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12411490U JPH0480137U (en) | 1990-11-26 | 1990-11-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12411490U JPH0480137U (en) | 1990-11-26 | 1990-11-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0480137U true JPH0480137U (en) | 1992-07-13 |
Family
ID=31871784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12411490U Pending JPH0480137U (en) | 1990-11-26 | 1990-11-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0480137U (en) |
-
1990
- 1990-11-26 JP JP12411490U patent/JPH0480137U/ja active Pending