JPS6295962U - - Google Patents
Info
- Publication number
- JPS6295962U JPS6295962U JP18793085U JP18793085U JPS6295962U JP S6295962 U JPS6295962 U JP S6295962U JP 18793085 U JP18793085 U JP 18793085U JP 18793085 U JP18793085 U JP 18793085U JP S6295962 U JPS6295962 U JP S6295962U
- Authority
- JP
- Japan
- Prior art keywords
- switch
- signal
- diode
- schmitt trigger
- trigger circuit
- 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
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は、本考案の一実施例を示す回路図、第
２図は従来例を示す回路図、第３図はシユミツト
トリガ回路の特性図である。
１…スイツチ、２…シユミツトトリガ回路、３
…安定化電源、Ｂ…バツテリ、Ｄ１…第１のダイ
オード、Ｄ２…第２のダイオード、Ｒ０〜Ｒ３…
抵抗。
FIG. 1 is a circuit diagram showing an embodiment of the present invention, FIG. 2 is a circuit diagram showing a conventional example, and FIG. 3 is a characteristic diagram of a Schmitt trigger circuit. 1... Switch, 2... Schmitt trigger circuit, 3
...Stabilized power supply, B...Battery, D1 ...First diode, D2 ...Second diode, R0 to R3 ...
resistance.
Claims (1)
等のスイツチを、抵抗及び第１のダイオードを介
してバツテリ電源に接続すると共に、前記スイツ
チのＯＮ，ＯＦＦ切換によつて変化する前記抵抗
とダイオードとの接続点の電位を安定化電源によ
つて作動するシユミツトトリガ回路に入力させ、
かつ、シユミツトトリガ回路の入力端子と安定化
電源の出力端子とを前者から後者への電流を許容
する向きに第２のダイオードを介して接続してな
り、シユミツトトリガ回路からの信号をスイツチ
のＯＮ，ＯＦＦ信号としてマイクロコンピユータ
に出力するようにしたことを特徴とする自動車用
電子制御装置のスイツチ信号出力回路。 A switch for detecting the driving state in an automotive electronic control device is connected to a battery power source through a resistor and a first diode, and the resistor and the diode are connected to each other so that the switch changes when the switch is turned on and off. The potential at the point is input to a Schmitt trigger circuit operated by a stabilized power supply,
The input terminal of the Schmitt trigger circuit and the output terminal of the stabilized power supply are connected via a second diode in a direction that allows current to flow from the former to the latter, and the signal from the Schmitt trigger circuit is used to turn on and off the switch. A switch signal output circuit for an electronic control device for an automobile, characterized in that the signal is output to a microcomputer as a signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18793085U JPS6295962U (en) | 1985-12-07 | 1985-12-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18793085U JPS6295962U (en) | 1985-12-07 | 1985-12-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6295962U true JPS6295962U (en) | 1987-06-18 |
Family
ID=31138834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18793085U Pending JPS6295962U (en) | 1985-12-07 | 1985-12-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6295962U (en) |
-
1985
- 1985-12-07 JP JP18793085U patent/JPS6295962U/ja active Pending
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