JPS6228264U - - Google Patents
Info
- Publication number
- JPS6228264U JPS6228264U JP11860285U JP11860285U JPS6228264U JP S6228264 U JPS6228264 U JP S6228264U JP 11860285 U JP11860285 U JP 11860285U JP 11860285 U JP11860285 U JP 11860285U JP S6228264 U JPS6228264 U JP S6228264U
- Authority
- JP
- Japan
- Prior art keywords
- output
- circuit
- reset signal
- input
- falls
- 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 1
Description
第１図は本考案の実施例を示す電気回路図、第
２図は出力状態を示すタイミングチヤートである
。
１……マイコン、２……ウオツチドツグ回路、
６……スイツチングトランジスタ、３１……フロ
ツプフロツプ回路、３２……オア回路。
FIG. 1 is an electric circuit diagram showing an embodiment of the present invention, and FIG. 2 is a timing chart showing the output state. 1...Microcomputer, 2...Watchdog circuit,
6... Switching transistor, 31... Flop-flop circuit, 32... OR circuit.
Claims (1)
出力とを入力し、ｃｋ出力が高値の時のリセツト
信号の立ち上がりにより出力が立ち下がり、ｃｋ
出力が低値の時のリセツト信号の立ち下がりによ
り出力が立ち上がり、リセツト信号の高値時のｃ
ｋ出力の立ち上がりにより出力が立ち下がるフリ
ツプフロツプ回路と、一方の入力端にこのフリツ
プフロツプ回路の出力を、他方の入力端にマイコ
ンのトラブル出力をそれぞれ入力し、出力端が被
制御機器の駆動電源供給回路を開閉するスイツチ
ングトランジスタのベースに接続されるオア回路
とを設けたことを特徴とするマイコン暴走時の安
全装置。 Watchdog circuit reset signal output and ck
When the ck output is high, the output falls due to the rise of the reset signal, and the ck
The output rises when the reset signal falls when the output is low, and c when the reset signal is high.
A flip-flop circuit whose output falls when the k output rises, the output of this flip-flop circuit is input to one input terminal, the trouble output of the microcomputer is input to the other input terminal, and the output terminal is a drive power supply circuit for the controlled equipment. A safety device in the event of a runaway microcomputer, characterized by having an OR circuit connected to the base of a switching transistor that opens and closes the circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11860285U JPS6228264U (en) | 1985-07-31 | 1985-07-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11860285U JPS6228264U (en) | 1985-07-31 | 1985-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6228264U true JPS6228264U (en) | 1987-02-20 |
Family
ID=31005208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11860285U Pending JPS6228264U (en) | 1985-07-31 | 1985-07-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6228264U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5587252A (en) * | 1978-12-26 | 1980-07-01 | Komatsu Ltd | Display and prevention circuit for computer reckless run |
| JPS5851356B2 (en) * | 1977-12-12 | 1983-11-16 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | optical data storage |
-
1985
- 1985-07-31 JP JP11860285U patent/JPS6228264U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5851356B2 (en) * | 1977-12-12 | 1983-11-16 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | optical data storage |
| JPS5587252A (en) * | 1978-12-26 | 1980-07-01 | Komatsu Ltd | Display and prevention circuit for computer reckless run |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6228264U (en) | ||
| JPH01173809U (en) | ||
| JPS60129726U (en) | electronic timer | |
| JPS6112125U (en) | Electronics | |
| JPS58134774U (en) | Battery check circuit | |
| JPS60187936U (en) | Microcomputer startup circuit | |
| JPS59187239U (en) | switch circuit | |
| JPS59139761U (en) | switch device | |
| JPS593790U (en) | power circuit | |
| JPS58102955U (en) | Combustor timer device | |
| JPS5886598U (en) | timer time setting device | |
| JPS58103594U (en) | Inverter device | |
| JPS609747U (en) | warning device | |
| JPS60172434U (en) | Malfunction prevention circuit at startup | |
| JPS5980650U (en) | combustion heater | |
| JPS6077226U (en) | Vehicle electronic equipment power supply | |
| JPH0279137U (en) | ||
| JPS5931772U (en) | emergency power supply | |
| JPS5945637U (en) | Microcomputer output signal generation circuit device | |
| JPS59180147U (en) | Temperature setting device for hot water appliances | |
| JPS6118637U (en) | timer circuit device | |
| JPS60148633U (en) | Power supply circuit for electronic equipment | |
| JPS61204225U (en) | ||
| JPS58125430U (en) | timer circuit | |
| JPS5915130U (en) | Control device |