TI and Würth Elektronik LED RoadTest+ - Thermal Mania - 6/10

RE: TI and Würth Elektronik LED RoadTest+ - Thermal Mania - 6/10

gpolder — Fri, 01 Jan 2016 14:34:50 GMT

Hi Antony,

whats the reason for the swirled traces?

The larger the coper area the faster the heat is dissipated.

I would say just use a solid coper area, which is as large as possible added to a heatsink.

Look for instance to the example Würth sent me in post: LED Road Test - LED PCB issues - Blog 3 - Dec 5, where four LEDs are connected to one heatsink.

RE: TI and Würth Elektronik LED RoadTest+ - Thermal Mania - 6/10

DAB — Thu, 31 Dec 2015 20:16:47 GMT

I am concerned about your possible EMI creation along the traces.

You are adding many antennas, even at low power, which can introduce some unwanted effects.

That said, I am waiting to see what you find in testing the first boards. You might want to set up a signal analyzer to see what kind of EMI you emit.

DAB