JPS6074343U - A-D conversion diagnostic device - Google Patents
A-D conversion diagnostic deviceInfo
- Publication number
- JPS6074343U JPS6074343U JP16680683U JP16680683U JPS6074343U JP S6074343 U JPS6074343 U JP S6074343U JP 16680683 U JP16680683 U JP 16680683U JP 16680683 U JP16680683 U JP 16680683U JP S6074343 U JPS6074343 U JP S6074343U
- Authority
- JP
- Japan
- Prior art keywords
- conversion
- voltage
- reference signals
- signals
- ground signal
- 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
- Analogue/Digital Conversion (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図は本考案に係るＡ−Ｄ変換診断装置の一実施例を示す
構成図である。
１１・・・・・・中継端子、１２・・・・・・第１のス
イッチ回路、１３・・・・・・第２のスイッチ回路、１
４・・・・・・診断制御部、１５・・・・・・Ａ−Ｄ変
換回路、Ｓ□〜Ｓｎ・・・・・・アナログ入力信号、Ｓ
Ｔ１〜ＳＴｎ・・・・・・基準信号、ＴＨ・・・・・・
接地信号。The figure is a configuration diagram showing an embodiment of the A-D conversion diagnostic device according to the present invention. 11... Relay terminal, 12... First switch circuit, 13... Second switch circuit, 1
4...Diagnosis control unit, 15...A-D conversion circuit, S□~Sn...Analog input signal, S
T1 to STn...Reference signal, TH...
Ground signal.
Claims (1)
換回路のＡ−Ｄ変換特性を診断する装置において、前記
複数のアナログ入力信号のほか、装置に使用するための
複数の基準信号（診断専用の基準信号を含む）を選択出
力する第１のスイッチ回路と、前記複数の基準信号およ
び接地信号を選択出力する第２のスイッチ回路と、少な
くとも前記第１、第２のスイッチ回路の信号入力端子部
に現われる前記複数の基準信号電圧が記憶され、前記Ａ
−Ｄ変換回路の診断時に、前記第１および第２のスイッ
チ回路を駆動制御して複数の基準信号および接地信号の
組合せによる電圧をＡ−Ｄ変換回路を通してディジタル
化し、このディジタル信号電圧と前記予め記憶されてい
る電圧とを比較して前記Ａ−Ｄ変換特性の診断を行なう
診断制御部とを備えたことを特徴とするＡ−Ｄ変換診断
装置。In a device for diagnosing the A-D conversion characteristics of an A-D conversion circuit that converts a plurality of analog input signals into digital signals, in addition to the plurality of analog input signals, there are also a plurality of reference signals for use in the device (diagnosis-specific standards). a first switch circuit that selects and outputs the plurality of reference signals and the ground signal; and a second switch circuit that selectively outputs the plurality of reference signals and the ground signal; The plurality of reference signal voltages appearing are stored and the A
- When diagnosing the D conversion circuit, the first and second switch circuits are driven and controlled to digitize the voltage resulting from the combination of a plurality of reference signals and the ground signal through the A-D conversion circuit, and this digital signal voltage and the predetermined An A/D conversion diagnostic device comprising: a diagnostic control unit that diagnoses the A/D conversion characteristics by comparing the voltage with a stored voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16680683U JPS6074343U (en) | 1983-10-27 | 1983-10-27 | A-D conversion diagnostic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16680683U JPS6074343U (en) | 1983-10-27 | 1983-10-27 | A-D conversion diagnostic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6074343U true JPS6074343U (en) | 1985-05-24 |
Family
ID=30365101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16680683U Pending JPS6074343U (en) | 1983-10-27 | 1983-10-27 | A-D conversion diagnostic device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6074343U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01196919A (en) * | 1988-02-02 | 1989-08-08 | Toshiba Corp | Monitor circuit for analog/digital converter |
| JPH04231883A (en) * | 1990-05-25 | 1992-08-20 | American Teleph & Telegr Co <Att> | Method and apparatus for testing delta-sigma modulator |
-
1983
- 1983-10-27 JP JP16680683U patent/JPS6074343U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01196919A (en) * | 1988-02-02 | 1989-08-08 | Toshiba Corp | Monitor circuit for analog/digital converter |
| JPH04231883A (en) * | 1990-05-25 | 1992-08-20 | American Teleph & Telegr Co <Att> | Method and apparatus for testing delta-sigma modulator |
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