Wednesday, 18 February 2015

led - How to get a constant current from a DC power supply for high voltage/current



For a project we're working on we require 4 high power LEDs, we've been using these: http://www.digikey.ca/product-detail/en/bridgelux/BXRC-50C10K0-L-24/976-1277-ND/5180249.


We've purchased this power supply for running the lights: http://deltapsu.com/products/download/Datasheet/PMT-36V350W1AR


With our testing so far we've been using these lights using our bench power supply which allows us to set a current limit. We're quite unfamiliar with how current limiting works, so we're a bit concerned about just hooking our lights up to the power supply and letting it go nuts. Are there any off the shelf items that we would be able to put between the power supply and the lights to force a constant current, or are we being overly cautious?




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