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October 2004

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DesignerCouncil <[log in to unmask]>
Subject:
Trace Heating
From:
"Jack C. Olson" <[log in to unmask]>
Date:
Thu, 7 Oct 2004 13:34:44 -0500
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1.0
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DesignerCouncil <[log in to unmask]>, [log in to unmask]
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"(Designers Council Forum)" <[log in to unmask]>, "Jack C. Olson" <[log in to unmask]>
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It seems like everyone is asking me questions I can't answer today.

We have been using the thermal trace calculator from UltraCAD
( http://www.ultracad.com/calc.htm )
but today someone asked me how time affects the temperature.
For example, what if the trace is only energized for half a second?
How hot will it get? Or how about a 50% duty cycle?

I can't seem to find any info about it. Anyone have references?

Jack (aka "one hot board designer")

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