Patent ID: 8937434
Filing Date: 2015-01-20
Classification: H05B

Abstract:
1. A method of controlling a power converter to provide a uniform dimming range to a solid state lighting load independent of a type of dimmer, the method comprising: determining maximum and minimum phase angles of a dimmer connected to the power converter during operation of the solid state lighting load by detecting a plurality of dimmer phase angles based on rectified input mains voltages and comparing the detected phase angles with a previously determined minimum phase angle and a previously determined maximum phase angle; and dynamically adjusting an output power of the power converter based on the detected maximum and minimum phase angles of the dimmer, the adjusted output power of the power converter adjusting a high end level of light output by the solid state lighting load at the maximum phase angle to match a predetermined high end value and adjusting a low end level of light output by the solid state lighting load at the minimum phase angle to match a predetermined low end value.