Illumination systems
First Claim
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1. An illumination system, comprising:
- a master power supply including an AC inverter and an amplitude modulator, said master power supply being constructed and arranged to generate high-frequency current provided to a primary wire forming a current-carrying loop;
said amplitude modulator being constructed to amplitude modulate said current at at least two modulation frequencies; and
at least two illumination modules each including several light emitting diodes receiving power by inductive coupling from said current-carrying loop, each said illumination module including a frequency discriminator, responsive to one of said modulation frequencies, constructed to enable control of a DC current to said light emitting diodes and thereby control emission of light from said light emitting diodes.
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Abstract
An illumination system includes a master power supply providing power to several illumination modules. The master power supply is constructed and arranged to generate high-frequency and low-voltage electrical power provided to a primary wire forming a current loop. Each illumination module includes an electromagnetic coupling element and several light sources.
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Citations
24 Claims
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1. An illumination system, comprising:
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a master power supply including an AC inverter and an amplitude modulator, said master power supply being constructed and arranged to generate high-frequency current provided to a primary wire forming a current-carrying loop;
said amplitude modulator being constructed to amplitude modulate said current at at least two modulation frequencies; andat least two illumination modules each including several light emitting diodes receiving power by inductive coupling from said current-carrying loop, each said illumination module including a frequency discriminator, responsive to one of said modulation frequencies, constructed to enable control of a DC current to said light emitting diodes and thereby control emission of light from said light emitting diodes. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An illumination system, comprising:
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a master power supply, including an AC inverter and a modulator, constructed and arranged to generate high-frequency and low-voltage electrical power being modulated and provided to a primary wire forming a current carrying loop; and an illumination module including an electromagnetic coupling element and a light source, said electromagnetic coupling element including a magnetic core arranged to receive said current loop, and a secondary wire wound around at least a portion of said magnetic core to enable inductive coupling of said modulated power from said primary wire, said secondary wire being connected to provide current to said light source. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An illumination method, comprising the acts of:
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generating high-frequency and low-voltage electrical power; modulating said high-frequency and low-voltage electrical power at modulation frequencies in the range of 1 kHz to 10 kHz providing said modulated high-frequency and low-voltage electrical power to a primary wire forming a current carrying loop; inductively coupling energy from said current carrying loop in a contactless manner to a secondary wire included in an illumination module; demodulating a signal corresponding to said inductively coupled energy in said illumination module; and delivering current to one or more light sources. - View Dependent Claims (23, 24)
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Specification