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Knowledge-based driver apparatus for high lumen maintenance and end-of-life adaptation
Knowledge-based driver apparatus for high lumen maintenance and end-of-life adaptation
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机译:基于知识的驱动器设备,可实现高流明维持率和寿命终止
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摘要
A knowledge-based driver is provided for powering a solid-state light source with a constant current, including a memory that stores lumens per amp and volts per amp performance characterizations of the light source over time, and a controller that operates in a test mode to estimate the light source degradation based on voltage feedback obtained at a predetermined test current value, and to adjust the drive current in normal operating mode according to the estimated device degradation to implement constant lumens control without external optical feedback components.
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