Dim-to-warm system and method of operating the same
First Claim
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1. A dim-to-warm lighting system comprising:
- a first light channel including a white light emitting diode having a first correlated color temperature and in electrical communication with the current drive;
a first current control controlling a first current through the white light emitting diode of the first light channel based on a first current value;
a second light channel having a second correlated color temperature different than the first correlated color temperature and in electrical communication with the current drive;
a second current control controlling a second current through the second light channel based on a second current value;
a dimming curve adjustment interface outputting a correlated color temperature signal; and
a controller receiving the measured current value from the current measuring device, the controller configured to;
determine a light control value from the measured current value,using the light control value, determine the first current value for the first current control,using the light control value, determine the second current value for the second current control, andprovide the first current value to the first current control and the second current value to the second current control.
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Abstract
A method of controlling a correlated color temperature for light output by a lighting device including a dim-to-warm circuit having a first light channel and a second light channel. The method including determining a light control value based on the measured current value. The method further including using the light control value, determining a first current value for applying a first current to the first light channel and determining a second current value for applying a second current to the second light channel; and providing the first current to the first light channel and providing the second current to the second light channel.
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Citations
9 Claims
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1. A dim-to-warm lighting system comprising:
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a first light channel including a white light emitting diode having a first correlated color temperature and in electrical communication with the current drive; a first current control controlling a first current through the white light emitting diode of the first light channel based on a first current value; a second light channel having a second correlated color temperature different than the first correlated color temperature and in electrical communication with the current drive; a second current control controlling a second current through the second light channel based on a second current value; a dimming curve adjustment interface outputting a correlated color temperature signal; and a controller receiving the measured current value from the current measuring device, the controller configured to; determine a light control value from the measured current value, using the light control value, determine the first current value for the first current control, using the light control value, determine the second current value for the second current control, and provide the first current value to the first current control and the second current value to the second current control. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification