JPS56157643A - Dc power source device for car - Google Patents
Dc power source device for carInfo
- Publication number
- JPS56157643A JPS56157643A JP6113480A JP6113480A JPS56157643A JP S56157643 A JPS56157643 A JP S56157643A JP 6113480 A JP6113480 A JP 6113480A JP 6113480 A JP6113480 A JP 6113480A JP S56157643 A JPS56157643 A JP S56157643A
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- becomes
- load
- voltage
- engine
- 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
- Stand-By Power Supply Arrangements (AREA)
Abstract
PURPOSE: To make it possible to impress almost constant voltage on such a load as an electronic device, etc. as all times and also to operate the load even at the time when an engine is stopped, by ultilizing a battery and a generator at the same time.
CONSTITUTION: When an engine's rotating speed is sufficiently high, voltage at a point (b) of a constant voltage circuit 10 is also high, and an input voltage Vi at a point (c) of a voltage detecting circuit 20 also becomes higher than a threshold value VT of a Schmitt circuit. For this reason, a transistor 21 becomes turned on, and a transistor 22 becomes turned off. And therefore, a switching transistor 30 becomes turned off, and a battery is separated from a load 50. When the engine's rotating speed decreased, and the input voltage Vi at the point (c) became lower than the threshold value VT, the transistor 21 becomes turnd off and the transistor 22 becomes turned on. For this reason, a transistor 30 becomes turned on, and the battery becomes connected to the load.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6113480A JPS56157643A (en) | 1980-05-08 | 1980-05-08 | Dc power source device for car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6113480A JPS56157643A (en) | 1980-05-08 | 1980-05-08 | Dc power source device for car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56157643A true JPS56157643A (en) | 1981-12-04 |
Family
ID=13162299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6113480A Pending JPS56157643A (en) | 1980-05-08 | 1980-05-08 | Dc power source device for car |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56157643A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6246244U (en) * | 1985-09-10 | 1987-03-20 | ||
| JPS63231044A (en) * | 1987-03-18 | 1988-09-27 | Hitachi Ltd | Power source device for vehicle |
| WO2017094612A1 (en) * | 2015-11-30 | 2017-06-08 | 株式会社オートネットワーク技術研究所 | Voltage measurement device, voltage measurement system |
-
1980
- 1980-05-08 JP JP6113480A patent/JPS56157643A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6246244U (en) * | 1985-09-10 | 1987-03-20 | ||
| JPS63231044A (en) * | 1987-03-18 | 1988-09-27 | Hitachi Ltd | Power source device for vehicle |
| WO2017094612A1 (en) * | 2015-11-30 | 2017-06-08 | 株式会社オートネットワーク技術研究所 | Voltage measurement device, voltage measurement system |
| JP2017100487A (en) * | 2015-11-30 | 2017-06-08 | 株式会社オートネットワーク技術研究所 | Voltage measurement device, and voltage measurement system |
| CN108349451A (en) * | 2015-11-30 | 2018-07-31 | 株式会社自动网络技术研究所 | Voltage measuring device, voltage measurement system |
| CN108349451B (en) * | 2015-11-30 | 2020-12-18 | 株式会社自动网络技术研究所 | Voltage measurement device and voltage measurement system |
| US11061075B2 (en) | 2015-11-30 | 2021-07-13 | Autonetworks Technologies, Ltd. | Voltage measurement device, voltage measurement system |
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