JPS643994A - Flickering light regulation device - Google Patents
Flickering light regulation deviceInfo
- Publication number
- JPS643994A JPS643994A JP62159160A JP15916087A JPS643994A JP S643994 A JPS643994 A JP S643994A JP 62159160 A JP62159160 A JP 62159160A JP 15916087 A JP15916087 A JP 15916087A JP S643994 A JPS643994 A JP S643994A
- Authority
- JP
- Japan
- Prior art keywords
- period
- control part
- flickering
- output
- monostable multivibrator
- 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 enable a desired flickering operation by detecting a state that one level period of a flickering control signal is equal to or smaller than one operation period of an illumination load in a lighting control part and next prolonging said one level period to be in excess of said one operation period. CONSTITUTION:An output of a monostable multivibrator 10 is raised to output a pulse at a time t11 when an output of a flickering control part 7 is raised. The output of the monostable multivibrator 10 is lowered at a time t12 behind a period W2 after the time t11, and high levels of outputs of this monostable multivibrator 10 and this flickering control part 7 are selected and outputted in a logic sum circuit 11. A light regulation signal is thus obtained to have a rising period W3 equal to a rising period W1. Even if the rising period W1 is smaller than the sampling period W2, the outputs of the flickering control part 7 and the monostable multivibrator 10 are outputted through the logic sum circuit 11. A light regulation signal with the rising period W3 equal to or larger than the rising period W1 at the flickering control part 7 can be obtained accordingly.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62159160A JPS643994A (en) | 1987-06-25 | 1987-06-25 | Flickering light regulation device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62159160A JPS643994A (en) | 1987-06-25 | 1987-06-25 | Flickering light regulation device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS643994A true JPS643994A (en) | 1989-01-09 |
Family
ID=15687579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62159160A Pending JPS643994A (en) | 1987-06-25 | 1987-06-25 | Flickering light regulation device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS643994A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5110577A (en) * | 1990-01-12 | 1992-05-05 | Ford Motor Company | Process of depositing a carbon film having metallic properties |
US5367009A (en) * | 1990-04-12 | 1994-11-22 | Arakawa Chemical Industries Ltd. | Aqueous rosin emulsion and dispersant composition useful therein |
US10149359B2 (en) | 2016-12-21 | 2018-12-04 | Panasonic Intellectual Property Management Co., Ltd. | Dimming control device, lighting apparatus, lighting system, and dimming control method |
-
1987
- 1987-06-25 JP JP62159160A patent/JPS643994A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5110577A (en) * | 1990-01-12 | 1992-05-05 | Ford Motor Company | Process of depositing a carbon film having metallic properties |
US5367009A (en) * | 1990-04-12 | 1994-11-22 | Arakawa Chemical Industries Ltd. | Aqueous rosin emulsion and dispersant composition useful therein |
US10149359B2 (en) | 2016-12-21 | 2018-12-04 | Panasonic Intellectual Property Management Co., Ltd. | Dimming control device, lighting apparatus, lighting system, and dimming control method |
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