JPS6474142A - Lighting system for vehicle mounted device - Google Patents
Lighting system for vehicle mounted deviceInfo
- Publication number
- JPS6474142A JPS6474142A JP62230557A JP23055787A JPS6474142A JP S6474142 A JPS6474142 A JP S6474142A JP 62230557 A JP62230557 A JP 62230557A JP 23055787 A JP23055787 A JP 23055787A JP S6474142 A JPS6474142 A JP S6474142A
- Authority
- JP
- Japan
- Prior art keywords
- constitution
- circuit
- engine
- voltage
- illumination
- 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.)
- Granted
Links
Abstract
PURPOSE:To facilitate control in case of using a vehicle-mounted device at night simplified in its constitution by detecting a drop in battery voltage, when an engine is started, and, at the time of this detection, closing a switching means, provided in an illuminating power supply line, for the predetermined fixed time. CONSTITUTION:For nighttime use of an automobile, by turning an ignition key, when an engine switch SW is turned on, a starter motor 36 is driven, cranking an engine. A large motor current is allowed to flow, causing a large load to be applied to a battery 30, and its voltage generates a large drop. Then decreasing charging voltage of a capacitor C1 in a voltage fluctuation detecting circuit 44 turning on a transistor Tr3, a pulse generating circuit 46 operates outputting a pulse signal to a pulse width setter circuit 48. By the constitution thus obtained, an illumination-on control signal is output to an illumination power supply switching circuit 40 over a predetermined width, for instance, 10sec, causing an illumination lamp 42 of an acoustic device 34 to be turned on.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62230557A JPH0735139B2 (en) | 1987-09-14 | 1987-09-14 | Lighting equipment for in-vehicle equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62230557A JPH0735139B2 (en) | 1987-09-14 | 1987-09-14 | Lighting equipment for in-vehicle equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6474142A true JPS6474142A (en) | 1989-03-20 |
JPH0735139B2 JPH0735139B2 (en) | 1995-04-19 |
Family
ID=16909622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62230557A Expired - Lifetime JPH0735139B2 (en) | 1987-09-14 | 1987-09-14 | Lighting equipment for in-vehicle equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0735139B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6603857B1 (en) * | 1997-07-14 | 2003-08-05 | Entrust Technologies Limited | Method and apparatus for controlling release of time sensitive information |
US7628472B2 (en) | 2003-01-10 | 2009-12-08 | Canon Kabushiki Kaisha | Ink-jet recording head |
-
1987
- 1987-09-14 JP JP62230557A patent/JPH0735139B2/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6603857B1 (en) * | 1997-07-14 | 2003-08-05 | Entrust Technologies Limited | Method and apparatus for controlling release of time sensitive information |
US7628472B2 (en) | 2003-01-10 | 2009-12-08 | Canon Kabushiki Kaisha | Ink-jet recording head |
US8083322B2 (en) | 2003-01-10 | 2011-12-27 | Canon Kabushiki Kaisha | Ink-jet recording head |
Also Published As
Publication number | Publication date |
---|---|
JPH0735139B2 (en) | 1995-04-19 |
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