APPARATUS AND METHOD FOR LED LIGHT CONTROL
First Claim
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1. An illumination apparatus comprising:
- a plurality of LEDs;
a control system connected to receive dimmer-modulated AC line voltage and control the plurality of LEDs, the control system configured to;
operate in a default mode wherein changes in dimmer-modulated AC line voltage adjust a first characteristic of the plurality of LEDs until the dimmer-modulated AC line voltage manifests a mode change condition;
enter a selected mode upon determining that the dimmer-modulated AC line voltage manifests the mode change condition wherein changes in dimmer-modulated AC line voltage adjust a second characteristic of the plurality of LEDs; and
,enter a different mode after the dimmer-modulated AC line voltage remains unchanged for a first predetermined time period.
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Abstract
An illumination apparatus comprises a plurality of LEDs and a control system connected to receive dimmer-modulated AC line voltage and control the LEDs. The control system is configured to operate in a plurality of different modes wherein changes in dimmer-modulated AC line voltage adjust various characteristic of the LEDs.
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Citations
32 Claims
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1. An illumination apparatus comprising:
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a plurality of LEDs; a control system connected to receive dimmer-modulated AC line voltage and control the plurality of LEDs, the control system configured to; operate in a default mode wherein changes in dimmer-modulated AC line voltage adjust a first characteristic of the plurality of LEDs until the dimmer-modulated AC line voltage manifests a mode change condition; enter a selected mode upon determining that the dimmer-modulated AC line voltage manifests the mode change condition wherein changes in dimmer-modulated AC line voltage adjust a second characteristic of the plurality of LEDs; and
,enter a different mode after the dimmer-modulated AC line voltage remains unchanged for a first predetermined time period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for controlling an LED-based illumination apparatus comprising a plurality of LEDs, the method comprising:
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receiving dimmer-modulated AC line voltage; controlling the LEDs in a default mode whereby changes in the dimmer-modulated AC line voltage are transformed into changes in a first characteristic of the plurality of LEDs until the dimmer-modulated AC line voltage manifests a mode change condition; controlling the LEDs in a selected mode whereby changes in dimmer-modulated AC line voltage are transformed into changes in a second characteristic of the plurality of LEDs upon determining that the dimmer-modulated AC line voltage manifests the mode change condition; and
,controlling the LEDs in a different mode after the dimmer-modulated AC line voltage remains unchanged for a first predetermined time period. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification