Low-cost low-power lighting system and lamp assembly
AssigneePhilips Lighting Holding B.V.
InventorsJohn L. Melanson, Eric J. King
Life of this patent
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Abstract
In accordance with embodiments of the present disclosure, a method and apparatus may include receiving an input waveform from a dimmer, wherein the input waveform is periodic at a first frequency. The method and apparatus may also include generating an output waveform independent of a load coupled to the output waveform, wherein the output waveform is periodic at a second frequency substantially greater than the first frequency, wherein at least one of the second frequency and an amplitude of the output waveform is based on a phase-cut angle of the input waveform indicative of a control setting of the dimmer.
Claims13
An apparatus comprising a modulator having an input and an output configured to:
- receive at the input an input waveform from a dimmer, wherein the input waveform is periodic at a first frequency;
- and
- generate at the output an output waveform independent of a load coupled to the output, wherein the output waveform is periodic at a second frequency substantially greater than the first frequency, wherein the second frequency is based on a phase-cut angle of the input waveform indicative of a control setting of the dimmer.
A method comprising:
- receiving an input waveform from a dimmer, wherein the input waveform is periodic at a first frequency;
- and
- generating an output waveform independent of a load coupled to the output waveform, wherein the output waveform is periodic at a second frequency substantially greater than the first frequency, wherein the second frequency is based on a phase-cut angle of the input waveform indicative of a control setting of the dimmer.
Dependencies are inferred from the claim text.