Controlled function light emitting diode lighting device and method

摘要

A lighting device includes an electrical circuit for energizing an LED light source. The electrical circuit is configured to: have a target relationship between two illuminating operational parameters of the LED, connect the LED to a power source, energize the LED with a voltage waveform to effect a current waveform, determine a magnitude of each of the two operational parameters, determine an operational relationship between the two operational parameters, compare the target relationship with the operational relationship, determine a difference between the target relationship and the operational relationship and respond to the difference by adjusting the voltage waveform such that it changes one or both operational parameters to bring the operational relationship towards the target relationship.

主权项

1. A lighting device comprising:
an electrical circuit comprising a light-emitting diode (LED) light source, said LED light source comprising at least one LED, said electrical circuit connected to a power source configured to energize the LED light source with an energizing waveform effecting a plurality of operational parameters, said electrical circuit comprising a memory storing a target relationship between a first electrical operational parameter and a second electrical operational parameter, said electrical circuit configured to effect a determination of an operational relationship between the first electrical operational parameter and the second electrical operational parameter, and said electrical circuit configured to determine a difference between said operational relationship and said target relationship and to effect a change in said energizing waveform in response to the difference, said change bringing the operational relationship towards said target relationship.