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7th June 2008, 09:36 AM
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#1 |
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diyAudio Member
Join Date: Aug 2004
Location: Huskvarna
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How to calculate gain and output impedance?
I would like to know how to calculate voltage gain and output
impedance in a few impedance converters. Please, look at the questions and the schematics here: http://twin-x.com/groupdiy/displayimage.php?pos=-2345 http://twin-x.com/groupdiy/displayimage.php?pos=-2344 Roger |
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7th June 2008, 05:09 PM
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#2 |
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diyAudio Member
Join Date: Mar 2008
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#1
Hello Roger,
seems ok to me. For the cascode take gm of the bottom transistor, same calculation like above. Try a bipolar transistor. You'll be surprised! gm = Ie/UT gm = transconductance Ie = DC Emitter current UT = 40mV (silicon) Darius |
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