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LED drivers on Boeing and Airbus passenger aircraft?
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ocset:
Is it likely to be true that  on Boeing and Airbus passenger aircraft, the actual  LED drivers are in the form of linear regulators because switch mode types are  too noisy?
...ie for the led lighting in the cabin, the passenger section, the luggage racks and the toilets and cooking areas etc.
Yansi:
No.
rrinker:
 Friend of mine works for a company that designs and produces many of those voltage converters, and also space-rated ones for satellites. They are some of the most amazingly compact switch-mode converters you ever saw. Extremely high efficiency, as well.
 
jmelson:

--- Quote from: treez on January 02, 2020, 07:12:28 pm ---Is it likely to be true that  on Boeing and Airbus passenger aircraft, the actual  LED drivers are in the form of linear regulators because switch mode types are  too noisy?
...ie for the led lighting in the cabin, the passenger section, the luggage racks and the toilets and cooking areas etc.

--- End quote ---
Almost certainly, the cabin lighting runs off 120 V 400 Hz AC power, so not likely.  Note the cabin lights blink VERY noticeably when the engines are started and the alternators come on line
and synch to the bus.

Jon
SiliconWizard:
Contact those guys: https://utcaerospacesystems.com/product_gallery/lighting-systems/
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