Solid-state lighting apparatus for use with fluorescent ballasts
First Claim
1. A lighting apparatus comprising:
- a housing having at least one translucent portion;
a solid-state lighting circuit within the housing and comprising at least one light emitting diode (LED);
first and second ballast connection ports supported by the housing and configured to be coupled to a ballast;
a first filament-imitating impedance within the housing and having a first terminal coupled to the first ballast connection port;
a first low-frequency blocking impedance within the housing and coupling a second terminal of the first filament-imitating impedance to a first input terminal of the solid-state lighting circuit and configured to block at least one component having a frequency of about 60 Hz or less;
a second filament-imitating impedance within the housing and having a first terminal coupled to the second ballast connection port; and
a second low-frequency blocking impedance within the housing and coupling a second terminal of the second filament-imitating impedance to a second input terminal of the solid-state lighting circuit and configured to block at least one component having a frequency of about 60 Hz or less.
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Accused Products
Abstract
A lighting apparatus includes a solid-state lighting circuit, at least one ballast connection port and at least one low-frequency blocking impedance coupling the at least one ballast connection port to the solid-state lighting circuit. In some embodiments, the at least one low-frequency blocking impedance may be configured to block a DC offset. In further embodiments, the at least one low-frequency blocking impedance may be configured to block a nominally 60 Hz frequency component. The at least one ballast connection port may include a first ballast connection port and a second ballast connection port and the at least one low-frequency blocking impedance may include a first low-frequency blocking impedance coupling the first ballast connection port to a first terminal of the solid-state lighting circuit and a second low-frequency blocking impedance coupling the second ballast connection port to a second input terminal of the solid-state lighting circuit.
97 Citations
33 Claims
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1. A lighting apparatus comprising:
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a housing having at least one translucent portion; a solid-state lighting circuit within the housing and comprising at least one light emitting diode (LED); first and second ballast connection ports supported by the housing and configured to be coupled to a ballast; a first filament-imitating impedance within the housing and having a first terminal coupled to the first ballast connection port; a first low-frequency blocking impedance within the housing and coupling a second terminal of the first filament-imitating impedance to a first input terminal of the solid-state lighting circuit and configured to block at least one component having a frequency of about 60 Hz or less; a second filament-imitating impedance within the housing and having a first terminal coupled to the second ballast connection port; and a second low-frequency blocking impedance within the housing and coupling a second terminal of the second filament-imitating impedance to a second input terminal of the solid-state lighting circuit and configured to block at least one component having a frequency of about 60 Hz or less. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A lighting apparatus comprising:
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a housing having at least one translucent portion; a solid-state lighting circuit within the housing and comprising at least one LED; at least one ballast connection port supported by the housing; and at least one low-frequency blocking impedance within the housing and coupling the at least one ballast connection port to the solid-state lighting circuit and configured to block at least one component having a frequency of about 60 Hz or less. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification