JPS5482863A - Controller for lighting on and off lamps - Google Patents
Controller for lighting on and off lampsInfo
- Publication number
- JPS5482863A JPS5482863A JP15124177A JP15124177A JPS5482863A JP S5482863 A JPS5482863 A JP S5482863A JP 15124177 A JP15124177 A JP 15124177A JP 15124177 A JP15124177 A JP 15124177A JP S5482863 A JPS5482863 A JP S5482863A
- Authority
- JP
- Japan
- Prior art keywords
- lamps
- bcd
- decoder
- outputs
- output
- 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
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
PURPOSE: To light on and off lamps at random and heighten the display effect, by connecting a pulse generator circuit, a BCD counter and a BCD 7-segment decoder in sequence and controlling lamp switching circuits by the output of the decoder.
CONSTITUTION: Rectangular waves as shown in Fig. are produced by the output of the pulse generator circuit 1 made of a gate intergrated circuit. The BCD counter 2 receives said output to generate logic outputs A∼D. The BCD 7-segment decoder 3 produces logic outputs a∼g from the outputs A∼D. The plural switching circuits for the lamps La∼Lg are connected to a commercial power source 4 and the lamps and have switch elements which are bidirectional triode SCR's Ta∼Tg. The outputs a∼g of the decoder 3 are applied as control signals to the gates of the SCR's through resistors Ra'∼Rg. The lighting on and off of lamps La∼Lg is repeated according to the control signals.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52151241A JPS6027997B2 (en) | 1977-12-15 | 1977-12-15 | Flashing control device for lamp group |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52151241A JPS6027997B2 (en) | 1977-12-15 | 1977-12-15 | Flashing control device for lamp group |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5482863A true JPS5482863A (en) | 1979-07-02 |
JPS6027997B2 JPS6027997B2 (en) | 1985-07-02 |
Family
ID=15514329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52151241A Expired JPS6027997B2 (en) | 1977-12-15 | 1977-12-15 | Flashing control device for lamp group |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6027997B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5725386U (en) * | 1980-07-21 | 1982-02-09 | ||
JPS5895788A (en) * | 1981-12-03 | 1983-06-07 | 東京都 | Controller for light emitting display |
JPS60100192A (en) * | 1983-11-07 | 1985-06-04 | 松下電器産業株式会社 | Display unit with a plurality of flashing element |
JPH01311400A (en) * | 1988-06-09 | 1989-12-15 | Kyocera Corp | Method for lighting light emitting symbol body |
-
1977
- 1977-12-15 JP JP52151241A patent/JPS6027997B2/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5725386U (en) * | 1980-07-21 | 1982-02-09 | ||
JPS6344862Y2 (en) * | 1980-07-21 | 1988-11-21 | ||
JPS5895788A (en) * | 1981-12-03 | 1983-06-07 | 東京都 | Controller for light emitting display |
JPS60100192A (en) * | 1983-11-07 | 1985-06-04 | 松下電器産業株式会社 | Display unit with a plurality of flashing element |
JPH01311400A (en) * | 1988-06-09 | 1989-12-15 | Kyocera Corp | Method for lighting light emitting symbol body |
Also Published As
Publication number | Publication date |
---|---|
JPS6027997B2 (en) | 1985-07-02 |
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