LED tube lamp for operating in different modes
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United States of America
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Feb 25, 2020
Grant Date -
Jul 25, 2019
app pub date -
Jan 24, 2019
filing date -
Jan 24, 2019
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Abstract
A light emitting diode (LED) tube lamp configured to receive an external driving signal includes an LED module for emitting light, the LED module comprising an LED unit comprising an LED; a rectifying circuit for rectifying the external driving signal to produce a rectified signal, the rectifying circuit having a first output terminal and a second output terminal for outputting the rectified signal; a filtering circuit connected to the LED module, and configured to provide a filtered signal for the LED unit; and a protection circuit for providing protection for the LED tube lamp. The protection circuit includes a voltage divider comprising two elements connected in series between the first and second output terminals of the rectifying circuit, for producing a signal at a connection node between the two elements; and a control circuit coupled to the connection node between the two elements, for receiving, and detecting a state of, the signal at the connection node. The control circuit includes or is coupled to a switching circuit coupled to the rectifying circuit, and the switching circuit is configured to be triggered on or off by the detected state, upon the external driving signal being input to the LED tube lamp, to allow discontinuous current to flow through the LED unit.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD
International Classification(s)
- F21V:FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES....
- C03C:CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREO....
- H05B:ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE ....
- F21Y:INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21L,....
- F21K:LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- B23K:SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLA....
- G05F:SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIAB....
- [Classification Symbol]
- [Patents Count]
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Liu, Xintong | Shanghai, CN | 53 | 1267 |
Wu, Xiaojia | Jinhua, CN | 13 | 383 |
Xiong, Aiming | Jiaxing, CN | 165 | 2347 |
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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 25, 2027 |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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