Power controls with photosensor for tube mounted LEDs with ballast
First Claim
1. A light emitting diode (LED) lamp for mounting to an existing fixture for a fluorescent lamp having a ballast assembly including ballast opposed electrical contacts, comprising:
- a tube having tube ends,at least one LED positioned within said tube between said tube ends,electrical circuit means for providing electrical power from the ballast assembly to said at least one LED,means for electrically connecting said electrical circuit means with the ballast opposed electrical contacts,said electrical circuit means including an LED electrical circuit including at least one electrical string positioned within said tube and generally extending between said tube ends,said at least one LED being in electrical connection with said at least one electrical string,said at least one LED being positioned to emit light through said tube,means for supporting and holding said at least one LED and said LED electrical circuit,means for controlling the delivery of said electrical power to said at least one LED,means for detecting the level of daylight around the illumination area of said at least one LED,a signal relating to the detected level of daylight emanating from said means for detecting,means for transmitting said signal to said means for controlling, anda voltage surge suppressor device that both reduces excess voltage from the ballast assembly during the start-up mode of the electrical system and suppresses transient voltage surge during the operating mode of the electrical system.
5 Assignments
0 Petitions
Accused Products
Abstract
A power saving device for a light emitting diode (LED) lamp mounted to an existing fixture for a fluorescent lamp having a ballast assembly and LEDs positioned within a tube and electrical power delivered from the ballast assembly to the LEDs. The LED lamp includes means for controlling the delivery of the electrical power from the ballast assembly to the LEDs wherein the use of electrical power can be reduced or eliminated automatically during periods of non-use. Such means for controlling include means for detecting the level of daylight in the illumination area of said least one LED in particular a light level photosensor and means for transmitting to the means for controlling a control signal relating to the detected level of daylight from the photosensor. The photosensor can be used in operative association with an on-off switch in power connection to the LEDs, or with a computer or logic gate array in operative association with a dimmer that controls the power to the LEDs. An occupancy sensor that detects motion or a person in the illumination area of the LEDs can be optionally used in association with the photosensor and the computer and dimmer. Two or more such LED lamps with one or more computers or logic gate arrays can be in network communication with the photosensors and the occupancy sensors to control the power to the LEDs.
212 Citations
43 Claims
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1. A light emitting diode (LED) lamp for mounting to an existing fixture for a fluorescent lamp having a ballast assembly including ballast opposed electrical contacts, comprising:
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a tube having tube ends, at least one LED positioned within said tube between said tube ends, electrical circuit means for providing electrical power from the ballast assembly to said at least one LED, means for electrically connecting said electrical circuit means with the ballast opposed electrical contacts, said electrical circuit means including an LED electrical circuit including at least one electrical string positioned within said tube and generally extending between said tube ends, said at least one LED being in electrical connection with said at least one electrical string, said at least one LED being positioned to emit light through said tube, means for supporting and holding said at least one LED and said LED electrical circuit, means for controlling the delivery of said electrical power to said at least one LED, means for detecting the level of daylight around the illumination area of said at least one LED, a signal relating to the detected level of daylight emanating from said means for detecting, means for transmitting said signal to said means for controlling, and a voltage surge suppressor device that both reduces excess voltage from the ballast assembly during the start-up mode of the electrical system and suppresses transient voltage surge during the operating mode of the electrical system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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Specification