JPS647728A - Instantaneous interruption preventing circuit - Google Patents
Instantaneous interruption preventing circuitInfo
- Publication number
- JPS647728A JPS647728A JP62161262A JP16126287A JPS647728A JP S647728 A JPS647728 A JP S647728A JP 62161262 A JP62161262 A JP 62161262A JP 16126287 A JP16126287 A JP 16126287A JP S647728 A JPS647728 A JP S647728A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- power source
- switch
- voltage
- action
- 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
- Transceivers (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Power Sources (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
Abstract
PURPOSE:To correctly actuate a timer function and to realize a highly accurate instantaneous interruption prevention by controlling a switch with the action of a supply voltage supervising circuit and compensating the action of a memory circuit with a back-up power source circuit. CONSTITUTION:When the impressed voltage of a terminal 7 is instantaneously interrupted or when a switch 1 is off for a short time, the output of a stabilizing power source circuit 2 is reduced, a supervising circuit 9 of the supply voltage is operated, and a switch 8 is turned on. Thus, a voltage is supplied from a back-up power source circuit 6 to a CPU 4 and a power source resetting circuit 3. At such time, for a memory circuit 5, a power source is supplied from the circuit 6, the action is compensated, memory information can be sent to the CPU 4 and a correct timer function is displayed. When the voltage reduction is continued for a long time, the switch 8 is turned off by a time constant circuit in the circuit 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62161262A JPS647728A (en) | 1987-06-30 | 1987-06-30 | Instantaneous interruption preventing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62161262A JPS647728A (en) | 1987-06-30 | 1987-06-30 | Instantaneous interruption preventing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS647728A true JPS647728A (en) | 1989-01-11 |
Family
ID=15731755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62161262A Pending JPS647728A (en) | 1987-06-30 | 1987-06-30 | Instantaneous interruption preventing circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS647728A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013145853A1 (en) * | 2012-03-30 | 2013-10-03 | 日立オートモティブシステムズ株式会社 | Electronic control apparatus |
| JP2021093833A (en) * | 2019-12-10 | 2021-06-17 | 日立Astemo株式会社 | Electronic control device |
-
1987
- 1987-06-30 JP JP62161262A patent/JPS647728A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013145853A1 (en) * | 2012-03-30 | 2013-10-03 | 日立オートモティブシステムズ株式会社 | Electronic control apparatus |
| JP2013210855A (en) * | 2012-03-30 | 2013-10-10 | Hitachi Automotive Systems Ltd | Electronic control unit |
| CN104094189A (en) * | 2012-03-30 | 2014-10-08 | 日立汽车系统株式会社 | electronic control unit |
| CN104094189B (en) * | 2012-03-30 | 2016-11-09 | 日立汽车系统株式会社 | electronic control unit |
| US9600047B2 (en) | 2012-03-30 | 2017-03-21 | Hitachi Automotive Systems, Ltd. | Electronic control unit |
| JP2021093833A (en) * | 2019-12-10 | 2021-06-17 | 日立Astemo株式会社 | Electronic control device |
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