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#1 Dec 21, 2016
PowerWoo
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Last seen: 9 months 2 weeks ago
Joined: 2016-08-08 17:35

LED Pspice model with Temperature

I am trying to model LED, but there is one problem I cannot correct it.  I tried to simulate the custom LED module with temperature sweep, but the forward voltage increases with temperature increases.  However, the reality should be reversed (negative temperature coefficient).  How I can correct this problem?  If anyone knows the way, please share it with us.  Thank you.

Fri, 2016-12-30 02:13
alok
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Last seen: 1 year 1 month ago
Joined: 2016-05-10 23:49

To get more accurate temperature characterstics - You should use diode model and modify it to suit desired characterstics. You may want to start with DBREAK from breakout library or if you are using LED modelling app - do - Edit >PSpice model on LED after placing it on schematic. 

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