CA1013840A - Lamp failure detection system - Google Patents
Lamp failure detection systemInfo
- Publication number
- CA1013840A CA1013840A CA143,678A CA143678A CA1013840A CA 1013840 A CA1013840 A CA 1013840A CA 143678 A CA143678 A CA 143678A CA 1013840 A CA1013840 A CA 1013840A
- Authority
- CA
- Canada
- Prior art keywords
- detection system
- failure detection
- lamp failure
- lamp
- failure
- 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.)
- Expired
Links
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA143,678A CA1013840A (en) | 1972-06-02 | 1972-06-02 | Lamp failure detection system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA143,678A CA1013840A (en) | 1972-06-02 | 1972-06-02 | Lamp failure detection system |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1013840A true CA1013840A (en) | 1977-07-12 |
Family
ID=4093436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA143,678A Expired CA1013840A (en) | 1972-06-02 | 1972-06-02 | Lamp failure detection system |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA1013840A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8482213B1 (en) | 2009-06-29 | 2013-07-09 | Panasonic Corporation | Electronic ballast with pulse detection circuit for lamp end of life and output short protection |
US8947020B1 (en) | 2011-11-17 | 2015-02-03 | Universal Lighting Technologies, Inc. | End of life control for parallel lamp ballast |
-
1972
- 1972-06-02 CA CA143,678A patent/CA1013840A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8482213B1 (en) | 2009-06-29 | 2013-07-09 | Panasonic Corporation | Electronic ballast with pulse detection circuit for lamp end of life and output short protection |
US8947020B1 (en) | 2011-11-17 | 2015-02-03 | Universal Lighting Technologies, Inc. | End of life control for parallel lamp ballast |
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