Patent ID: 8072163
Filing Date: 2011-12-06
Classification: H05B

Abstract:
1. A driver apparatus for powering a solid-state light source, the driver apparatus comprising: a constant current power source with an input to receive input electrical power and an output coupleable to a solid-state light source, the output operative to provide electrical output current to drive the at least one solid-state light source; a memory storing a lumens per amp performance characterization of the solid-state light source over time as well as a volts per amp performance characterization of the solid-state light source over time; and a controller operatively coupled with the memory and with the power source to receive at least one feedback value from the power source and to provide a current setpoint signal or value to the power source; the controller being operative in a normal mode to provide an operating current setpoint value or signal to cause the power source to drive the solid-state light source at a corresponding output current level; and the controller being operative in a test mode: