JPS54133765A - Circuit for lighting lamps - Google Patents
Circuit for lighting lampsInfo
- Publication number
- JPS54133765A JPS54133765A JP4120578A JP4120578A JPS54133765A JP S54133765 A JPS54133765 A JP S54133765A JP 4120578 A JP4120578 A JP 4120578A JP 4120578 A JP4120578 A JP 4120578A JP S54133765 A JPS54133765 A JP S54133765A
- Authority
- JP
- Japan
- Prior art keywords
- gate
- electric source
- activated
- lamps
- signal
- 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
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
PURPOSE: To prevent over-current for lamps by lighting bulbs with rectangular pulse in lighting mode when a electric source is closed or lamp-checks is effected.
CONSTITUTION: An electric source V1 for a switching circuit SW is activated alone immediate after closing an electric source, subsequently, an output from a gate OR becomes to be one (1) by a voltage establishing signal P-AVL output from a control circuit and a gate G2 is activated. Simultaneously, a gate G1 is inactivated throuh an inverter iNV. Subsequently, an electric source V2 is activated, however, respective lamps are lighted by pulse signal through the gate G2 and a rectangular wave generating circuit OSC at this time, and rush current upon closing the electric source will never be flown. When lamp-check is effected, a signal L- TEST becomes to be one (1) and the gate G2 is activated, thereby, lamps are lighted by the pulse signal from the rectangular wave generating circuit OSC.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4120578A JPS54133765A (en) | 1978-04-10 | 1978-04-10 | Circuit for lighting lamps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4120578A JPS54133765A (en) | 1978-04-10 | 1978-04-10 | Circuit for lighting lamps |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54133765A true JPS54133765A (en) | 1979-10-17 |
Family
ID=12601901
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4120578A Pending JPS54133765A (en) | 1978-04-10 | 1978-04-10 | Circuit for lighting lamps |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54133765A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016103368A (en) * | 2014-11-27 | 2016-06-02 | 株式会社小糸製作所 | Lighting circuit and lighting fixture for vehicle |
-
1978
- 1978-04-10 JP JP4120578A patent/JPS54133765A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016103368A (en) * | 2014-11-27 | 2016-06-02 | 株式会社小糸製作所 | Lighting circuit and lighting fixture for vehicle |
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