JPS6074340U - Switching signal input circuit - Google Patents
Switching signal input circuitInfo
- Publication number
- JPS6074340U JPS6074340U JP16537883U JP16537883U JPS6074340U JP S6074340 U JPS6074340 U JP S6074340U JP 16537883 U JP16537883 U JP 16537883U JP 16537883 U JP16537883 U JP 16537883U JP S6074340 U JPS6074340 U JP S6074340U
- Authority
- JP
- Japan
- Prior art keywords
- switching signal
- signal input
- input circuit
- circuit
- impedance
- 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
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
- Electronic Switches (AREA)
- Television Signal Processing For Recording (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図は従来のスイッチング信号入力回路を示す回路図
、第２図は本考案の一実施例に係るスイッチング信号入
力回路を示す回路図、第３図は第２図の動作を説明子る
ための説明図、第４図は本考案の他の実施例に係るスイ
ッチング信号入力回路を示す回路図、第５図は第４図の
動作を説明するための説明図である。
１・・・・・・スイッチ、２・・・・・・電圧源端子、
３・・・・・・入力部（５・・・・・・ラッチ回路）、
６・・・・・・電流制御回路、１０・・・・・・遅延回
路、１１・・・・・・インバータ、１２・・・・・・ア
ンドゲート、Ｑ工・・・・・・電界効果トランジスタ。
第３図
第５図Fig. 1 is a circuit diagram showing a conventional switching signal input circuit, Fig. 2 is a circuit diagram showing a switching signal input circuit according to an embodiment of the present invention, and Fig. 3 is for explaining the operation of Fig. 2. FIG. 4 is a circuit diagram showing a switching signal input circuit according to another embodiment of the present invention, and FIG. 5 is an explanatory diagram for explaining the operation of FIG. 4. 1...Switch, 2...Voltage source terminal,
3...Input section (5...Latch circuit),
6...Current control circuit, 10...Delay circuit, 11...Inverter, 12...AND gate, Q unit...Field effect transistor. Figure 3 Figure 5
Claims (2)
ることのできるスイッチング信号入力回路であって、前
記スイッチング信号の供給源となる電圧源端子と、この
電圧源端子と接地点との間で前記スイッチに直列となる
ように出力端子間が接続され、この出力端子間のインピ
ーダンスを間欠的に低インピーダンスと高インピーダン
スに変化するようにして前記スイッチの電流を制御する
電流制御回路と、この電流制御回路の低インピーダンス
時および高インピーダンス時のいずれか一方の期間に前
記スイッチング信号の読込み動作を行う入力部とを具備
したことを特徴とするスイッチング信号入力回路。(1) A switching signal input circuit that can temporally control the current flowing through the switch when it is conductive, and is connected between a voltage source terminal that serves as a supply source of the switching signal, and this voltage source terminal and a ground point. a current control circuit, the output terminals of which are connected in series with the switch, and which controls the current of the switch by intermittently changing the impedance between the output terminals to low impedance and high impedance; 1. A switching signal input circuit comprising: an input section that reads the switching signal during either a low impedance period or a high impedance period of the current control circuit.
を所定時間遅延する遅延回路を設け、この遅延回路の出
力で前記入力部の読込み後の一定期間、インピーダンス
変化動作を禁止するよう比したことを特徴とする実用新
案登録請求の範囲第１項に記載のスイッチング信号入力
回路。(2) The current control circuit includes a delay circuit that delays the signal read by the input section for a predetermined period of time, and the output of the delay circuit inhibits impedance changing operation for a certain period of time after the signal is read from the input section. The switching signal input circuit according to claim 1 of the utility model registration claim, characterized in that the switching signal input circuit is compared with the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16537883U JPS6074340U (en) | 1983-10-27 | 1983-10-27 | Switching signal input circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16537883U JPS6074340U (en) | 1983-10-27 | 1983-10-27 | Switching signal input circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6074340U true JPS6074340U (en) | 1985-05-24 |
Family
ID=30362337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16537883U Pending JPS6074340U (en) | 1983-10-27 | 1983-10-27 | Switching signal input circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6074340U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014118082A (en) * | 2012-12-18 | 2014-06-30 | Nippon Seiki Co Ltd | Meter for vehicle |
-
1983
- 1983-10-27 JP JP16537883U patent/JPS6074340U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014118082A (en) * | 2012-12-18 | 2014-06-30 | Nippon Seiki Co Ltd | Meter for vehicle |
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