LED lighting apparatus for use with AC-output lighting ballasts
First Claim
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1. An apparatus for interfacing a ballast to at least one light emitting diode (LED), the apparatus comprising:
- a passive rectifier circuit; and
a matching circuit coupled at an input port and/or an output port of the passive rectifier circuit and configured to at least partially match an impedance of the ballast, wherein the at least one LED is provided in a housing and mounted on a substrate contained within a translucent portion of the housing, wherein the housing comprises non-translucent first and second end caps that cap respective ones of the first and second ends of the elongated housing and wherein the passive rectifier circuit and the matching circuit are at least partially contained within at least one of the first and second end caps.
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Accused Products
Abstract
An apparatus for interfacing a ballast to at least one light emitting diode (LED) includes a passive rectifier circuit and matching circuit coupled to an input port and/or an output port of the passive rectifier circuit and configured to at least partially match an impedance of the ballast.
121 Citations
17 Claims
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1. An apparatus for interfacing a ballast to at least one light emitting diode (LED), the apparatus comprising:
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a passive rectifier circuit; and a matching circuit coupled at an input port and/or an output port of the passive rectifier circuit and configured to at least partially match an impedance of the ballast, wherein the at least one LED is provided in a housing and mounted on a substrate contained within a translucent portion of the housing, wherein the housing comprises non-translucent first and second end caps that cap respective ones of the first and second ends of the elongated housing and wherein the passive rectifier circuit and the matching circuit are at least partially contained within at least one of the first and second end caps. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A lamp comprising:
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an elongated housing; at least one electrical contact positioned proximate at least one of first and second ends of the housing; at least one light emitting diode (LED) positioned in the housing and configured to provide illumination through at least one translucent portion of the housing between the first and second ends; a substrate contained within the housing, wherein the at least one LED is mounted on the substrate; and an impedance matching passive rectifier circuit at least partially contained within the housing and coupled to the at least one LED and the at least one electrical contact, wherein the housing comprises first and second non-translucent end caps that cap respective ones of the first and second ends of the elongated housing and wherein the impedance matching passive rectifier circuit is at least partially contained within at least one of the first and second end caps. - View Dependent Claims (15, 16, 17)
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Specification