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Aircraft Landing and Navigation LED Lighting

Everwild

New Member
Hi. I'm in the process of building an experimental kit aircraft. A Vans RV-10. I'm thinking about designing my own landing and navigation lights. There are existing solutions out there but like most things in aviation, the cost is high for quality commercial options. I consider myself to be a quick learner, enjoy learning new things, but have a limited electronics background.

For landing and taxi lights, I'm thinking about using Cree XHP35.3, XHP50.3 or XHP70.3 LED chips available in 3v 6v or 12v, off the shelf optics, heat sinks and other components to make the system design simple and repairable should something fail. The aircraft will have a 12v system (12.4-12.9 fully charged, up to 14.4 volts when charging the battery). The main alternator can provide up to 60amps of current with a backup alternator that delivers up to 40amps if the main fails.

So far I'm thinking about using some combination of adjustable linear voltage and current regulators to drive the LEDs. Efficiency is less important than keeping RF noise to a minimum as to not interfere with communications or navigation radios. The idea is to use multiple LED projector units in combination to provide LOTS of light. Think 15-20k lumens. I would like each LED projector unit to have it's own driver for redundancy.

The Cree XHP50 at 6V has a maximum current of 3A and puts out 2300 lumens. The XHP70.3 can push a max of 7A at 6V and 5000 lumens.

I'm assuming I need to start by identifying the right linear voltage and current regulator for the job and then design my circuits around those? Any ideas on which linear regulators I should consider?

Thanks!
 

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