JPS6079844U - Electronic blood pressure monitor AD converter - Google Patents
Electronic blood pressure monitor AD converterInfo
- Publication number
- JPS6079844U JPS6079844U JP17091383U JP17091383U JPS6079844U JP S6079844 U JPS6079844 U JP S6079844U JP 17091383 U JP17091383 U JP 17091383U JP 17091383 U JP17091383 U JP 17091383U JP S6079844 U JPS6079844 U JP S6079844U
- Authority
- JP
- Japan
- Prior art keywords
- constant current
- operational amplifier
- converter
- blood pressure
- double
- 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)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (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
第１図は本考案の実施例の機能図を示した図、第２図は
タイミングチャート、第３図は信号電圧−基準定電流切
換スイッチ１の回路例である。
１・・・・・・信号電圧−基準定電流切換スイッチ、２
・・・・・・定電流回路、３・・・・・・オペアンプ、
４・・・・・・比較器、５・・・・・・トリガ端子、６
・・・・・・入力端子、Ｒ・・・・・・抵抗、Ｃ・・・
・・・コンデンサ、Ａ・・・・・・オペアンプ３の出力
電圧、Ｂ・・・・・・比較器４の出力電圧、Ｃ・・・・
・・トリガ端子５の入力電圧、７・・・・・・トリガト
ランジスタ、８・・・・・・出力トランジスタ。FIG. 1 is a diagram showing a functional diagram of an embodiment of the present invention, FIG. 2 is a timing chart, and FIG. 3 is a circuit example of the signal voltage-reference constant current changeover switch 1. 1...Signal voltage-reference constant current selector switch, 2
... Constant current circuit, 3... Operational amplifier,
4...Comparator, 5...Trigger terminal, 6
...Input terminal, R...Resistance, C...
... Capacitor, A ... Output voltage of operational amplifier 3, B ... Output voltage of comparator 4, C ...
...Input voltage of trigger terminal 5, 7...Trigger transistor, 8...Output transistor.
Claims (1)
え、前記二重積分型心変換器の信号電流−基準定電流切
換スイッチとしてオペアンプを用い、前記オペアンプの
出力段は定電流バイアスにより駆動され、前記オペアン
プの入力段の片方の端子は２個の同等のトランジスタに
より構成され前記トランジスタの一方をトリガトランジ
スタとし、前記二重積分型心変換器を充電する場合は前
記トリがトランジスタをカットオフして前記オペアンプ
をボルテージフォロワとして動作させ、前記オペアンプ
の出力電圧により抵抗を介して充電し、基準定電流で放
電する場合は、前記トリガトランジスタをオンさせ前記
出力段の定電流バイアスのみを動作させ、前記定電流バ
イアスをもって前記二重積分型ＡＤ変換器の基準定電流
とすることを特徴とする電子血圧計心変換器。The electronic blood pressure monitor Oki transducer is equipped with a double-integrating cardiac transducer, an operational amplifier is used as a signal current-reference constant current switch of the double-integrating cardiac transducer, and the output stage of the operational amplifier is controlled by a constant current bias. One terminal of the input stage of the operational amplifier is constituted by two equivalent transistors, one of which is used as a trigger transistor, and when charging the double-integrating converter, the transistor cuts the transistor. When the operational amplifier is turned off to operate as a voltage follower, charged via a resistor by the output voltage of the operational amplifier, and discharged with a reference constant current, the trigger transistor is turned on and only the constant current bias of the output stage is operated. An electronic blood pressure monitor cardiac converter, characterized in that the constant current bias is used as a reference constant current of the double integral type AD converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17091383U JPS6079844U (en) | 1983-11-04 | 1983-11-04 | Electronic blood pressure monitor AD converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17091383U JPS6079844U (en) | 1983-11-04 | 1983-11-04 | Electronic blood pressure monitor AD converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6079844U true JPS6079844U (en) | 1985-06-03 |
Family
ID=30372974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17091383U Pending JPS6079844U (en) | 1983-11-04 | 1983-11-04 | Electronic blood pressure monitor AD converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6079844U (en) |
-
1983
- 1983-11-04 JP JP17091383U patent/JPS6079844U/en active Pending
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