Phase Control Dimming Compatible Lighting Systems
First Claim
1. An apparatus comprising:
- a controller having an input to receive a phase control dimming signal, wherein the controller is configured to;
(i) convert the phase control dimming signal into dimming information and (ii) generate a power factor correction (PFC) control signal for a switching power converter, wherein the controller further includes a first output to provide the dimming information and a second output to provide the PFC control signal.
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Accused Products
Abstract
A power control/lighting system includes a controller to provide compatibility between a lamp ballast configured to receive a dedicated dimmer signal and a phase control dimmer. In at least one embodiment, the controller converts a phase control dimming signal into dimming information useable by a lamp ballast of a gas discharge lamp based lighting system. Additionally, in at least one embodiment, the controller also controls power factor correction of the power control/lighting system. In at least one embodiment, the controller provides dimming information based on the phase control dimming signal that allows the lamp ballast to be used in conjunction with a phase control dimmer.
151 Citations
30 Claims
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1. An apparatus comprising:
a controller having an input to receive a phase control dimming signal, wherein the controller is configured to;
(i) convert the phase control dimming signal into dimming information and (ii) generate a power factor correction (PFC) control signal for a switching power converter, wherein the controller further includes a first output to provide the dimming information and a second output to provide the PFC control signal.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method comprising:
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receiving a phase control dimming signal; converting the phase control dimming signal into dimming information for a lighting system; and generating a power factor correction (PFC) control signal for a switching power converter. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A power control/lighting system comprising:
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a switching power converter having at least one input to receive a phase control dimming signal; a controller having an input to receive the phase control dimming signal, wherein the controller is configured to;
(i) convert the phase control dimming signal into dimming information and (ii) generate a power factor correction (PFC) control signal for a switching power converter, wherein the controller further includes a first output to provide the dimming information and a second output coupled to the switching power converter to provide the PFC control signal;a lamp ballast coupled to the switching power converter and the second output of the controller; and a discharge-type lamp coupled to the lamp ballast. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30)
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Specification