Adaptive lighting driver
First Claim
1. A method of adapting output power of a driver to conduction duration of a phase-cut dimmer, the method comprising:
- determining a first conduction duration of an electrical signal generated by a phase-cut dimmer, the first conduction duration corresponding to a dimmest setting of the phase-cut dimmer;
storing a first value corresponding to the first conduction duration;
determining a second conduction duration of the electrical signal, the second conduction duration corresponding to a brightest setting of the phase-cut dimmer;
storing a second value corresponding to the second conduction duration;
generating intermediate values that are between the first value and the second value; and
adjusting an output power of a driver based on a conduction duration of the electrical signal, the first value, the second value, and the intermediate values, wherein changing a dim level setting of the phase-cut dimmer changes the conduction duration of the electrical signal.
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Accused Products
Abstract
A method of adapting output power of a driver to conduction duration of a phase-cut dimmer includes determining a first conduction duration of an electrical signal generated by a phase-cut dimmer. The first conduction duration corresponds to a dimmest setting of the phase-cut dimmer. The method further includes storing a first value corresponding to the first conduction duration and determining a second conduction duration of the electrical signal. The second conduction duration corresponds to a brightest setting of the phase-cut dimmer. The method also includes storing a second value corresponding to the second conduction duration and generating intermediate values that are between the first value and the second value. The method further includes adjusting an output power of a driver based on a conduction duration of the electrical signal, the first value, the second value, and the intermediate values.
7 Citations
20 Claims
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1. A method of adapting output power of a driver to conduction duration of a phase-cut dimmer, the method comprising:
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determining a first conduction duration of an electrical signal generated by a phase-cut dimmer, the first conduction duration corresponding to a dimmest setting of the phase-cut dimmer; storing a first value corresponding to the first conduction duration; determining a second conduction duration of the electrical signal, the second conduction duration corresponding to a brightest setting of the phase-cut dimmer; storing a second value corresponding to the second conduction duration; generating intermediate values that are between the first value and the second value; and adjusting an output power of a driver based on a conduction duration of the electrical signal, the first value, the second value, and the intermediate values, wherein changing a dim level setting of the phase-cut dimmer changes the conduction duration of the electrical signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A lighting system, comprising:
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a phase-cut dimmer; a light source; and an adaptive driver coupled to the phase cut dimmer and to the light source, the adaptive driver comprising; a conduction duration detector to determine a conduction duration of the electrical signal, wherein changing a dim level setting of the dimmer changes the conduction duration of the electrical signal; a memory device to store values corresponding to the conduction duration of the electrical signal determined by the conduction duration detector, the values including a first value, a second value, and intermediate values that are between the first value and the second value, wherein the first value corresponds to a minimum conduction duration of the electrical signal determined by the conduction duration detector, wherein the second value corresponds to a maximum conduction duration of the electrical signal determined by the conduction duration detector, and the intermediate values correspond to intermediate conduction durations of the electrical signal; and a power processor to provide power to the light source based on the first value, the second value, and the intermediate values. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A lighting fixture, comprising:
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a light emitting diode (LED) light source; and an adaptive driver coupled to the LED light source, the adaptive driver comprising; a conduction duration detector to determine a conduction duration of the electrical signal based on the rectified electrical signal, wherein changing a dim level setting of the dimmer changes the conduction duration of the electrical signal; a memory device to store values corresponding to the conduction duration of the electrical signal determined by the conduction duration detector, the values including a first value, a second value, and intermediate values that are between the first value and the second value, wherein the first value corresponds to a minimum conduction duration of the electrical signal determined by the conduction duration detector, wherein the second value corresponds to a maximum conduction duration of the electrical signal determined by the conduction duration detector, and the intermediate values correspond to intermediate conduction durations of the electrical signal; and a power processor to provide power to the LED light source based on the first value, the second value, and the intermediate values. - View Dependent Claims (17, 18, 19, 20)
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Specification