System and method for controlling dimming of solid state lighting device
First Claim
1. A method of determining an amount of light to be output from a solid state lighting (SSL) unit, comprising an SSL load, based on a dimmer setting of a dimmer connected to input terminals of the SSL unit, the method comprising:
- determining the dimmer setting of the dimmer during a readout mode by analyzing a power signal received from the dimmer at the input terminals of the SSL unit;
determining a desired level of light to be output from the SSL unit corresponding to the determined dimmer setting;
determining power needed at the input terminals of the SSL unit for the SSL load to output the desired level of output light;
determining a value of an adjusting signal for adjusting the power at the input terminals of the SSL unit, based at least in part on the determined dimmer setting; and
adjusting the power at the input terminals of the SSL unit during a power reception mode using the determined value of the adjusting signal, thereby powering the SSL unit to output the desired level of light.
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Accused Products
Abstract
Determining an amount of light output from a solid state lighting (SSL) unit based on a dimmer setting includes determining the dimmer setting of the dimmer during a readout mode by analyzing a power signal received from the dimmer, the dimmer setting indicating a desired level of light, determining power needed at input terminals of the SSL unit for an SSL load to output the desired level of output light, and determining a value of an adjusting signal for adjusting the power at the input terminals of the SSL unit during a power reception mode, based at least in part on the determined dimmer setting, causing the SSL unit to output the desired level of light.
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Citations
19 Claims
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1. A method of determining an amount of light to be output from a solid state lighting (SSL) unit, comprising an SSL load, based on a dimmer setting of a dimmer connected to input terminals of the SSL unit, the method comprising:
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determining the dimmer setting of the dimmer during a readout mode by analyzing a power signal received from the dimmer at the input terminals of the SSL unit; determining a desired level of light to be output from the SSL unit corresponding to the determined dimmer setting; determining power needed at the input terminals of the SSL unit for the SSL load to output the desired level of output light; determining a value of an adjusting signal for adjusting the power at the input terminals of the SSL unit, based at least in part on the determined dimmer setting; and adjusting the power at the input terminals of the SSL unit during a power reception mode using the determined value of the adjusting signal, thereby powering the SSL unit to output the desired level of light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of controlling light output by a solid state lighting (SSL) unit connectable to a dimmer, the method comprising:
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receiving a power signal at an input terminal of the SSL unit from the dimmer; determining a potentiometer setting of the dimmer based on the power signal; determining a desired level of output light from the SSL unit corresponding to the determined potentiometer setting; determining a desired input voltage at the input terminal of the SSL unit that would cause the SSL unit to output the desired level of output light; and determining a value of an adjusting signal needed to adjust an input voltage at the input terminal to equal the determined desired input voltage. - View Dependent Claims (14, 15, 16)
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17. A solid state lighting (SSL) unit configured to connect to a dimmer in a dimmer circuit, the SSL unit comprising:
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a light emitting diode (LED) module; at least one input terminal configured to receive input power from the dimmer, the input power corresponding to a dimmer voltage across the dimmer; a processing circuit configured to determine a dimmer setting of the dimmer during a readout mode by analyzing the input power, the dimmer setting indicating a desired level of output light from the LED module; a signal generating module configured to generate an adjusting signal based at least in part on the determined dimmer setting; and a power reception module configured to adjust the input power at the at least one input terminal during a power reception mode using the adjusting signal to cause the LED module to output the desired level of light. - View Dependent Claims (18, 19)
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Specification