Cree XD16 measurements

[clemence]

@JaredM

@clemence

under the same setup the gapless design maxed in 4,8A (Jensen tested up to 5,5A). Spaced by 0,2mm made no difference. But using the alpha board spaced at 0,4mm it peaked very close to 12A.
250% max current increase.

No it’s not about phosphor cooling. Yes, the phosphor in E21A is indeed hotter than average but it still productive up to 3,2A/die. While in gapless quadtrix (4xarrays) max current was limited to only 1,2A/die.

- Clemence

Could you explain what you believe is the mechanism causing this phenomenon then?

You’ll find most of the information here:

New VirEnce MCPCB for E17/E21/119/144/233U

Hi guys, I'm going to make custom copper round CDTP MCPCB for a single Nichia 144A. This new board will have several features: Non insulated for superior heatsinking with direct soldering OR Insulated with options to use either thermal adhesives or pad High reflectance white masking ink High temperature masking ink (lead free/direct soldering friendly - less yellowing) Hopefully will performs same or better than my previous 30mm x 30mm VirEnce board (will post the test result …

- Clemence