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Old 16th August 2007, 05:59 PM   #1
aldovan is offline aldovan  
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Default Thermal compensation circuit

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I need a thermal compensation circuit for control the transistor Ic current.
Anyone have a simple circuit for this ?
I will put the sensor in the transistor TO-3 case.

Thanks,

Aldovan
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Old 16th August 2007, 06:13 PM   #2
AndrewT is offline AndrewT  
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Use the standard Vbe multplier.
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regards Andrew T.
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Old 16th August 2007, 10:35 PM   #3
Giaime is offline Giaime  
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Take a look here:
http://paginas.fe.up.pt/~fff/eBook/MDA/Mult_Vbe.html
http://sound.westhost.com/amp_design.htm#thermal-stab
http://www.headwize.com/ubb/showpage...num=3&tid=5688

Also I suggest strongly reading this book:
http://www.dself.dsl.pipex.com/ampins/books/book.htm
(a whole chapter on thermal compensation and design!)
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