Led drive for generating constant light output

Details Led drive for generating constant light output Led drive for generating constant light output

H - Electricity

05

B

H05B 37/02 (2006.01) H01L 27/15 (2006.01)

Patent

CA 2456391

An LED light source drive includes an LED current generating circuit and an LED drive controller. The current generating circuit is operable to receive power from a power source and to generate a do current that can be used to the drive an LED light source. The drive controller is operable to control the do current to ensure that the light output of the light source remains approximately constant over its operating lifetime. In one embodiment; the drive controller ensures that the effective light output of the light source remains approximately constant by automatically increasing the do current in predetermined amounts at predetermined times. In an alternative embodiment, the drive controller includes an LED light sensor that is operable to generate a light signal indicative of the effective light output of the light source and the controller uses this light signal to control the do current output.

Affiliated with

Also associated with

Rating

Led drive for generating constant light output does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Led drive for generating constant light output, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Led drive for generating constant light output will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1488942