H and y parameters for CB and CE transistors

  • Thread starter evol_w10lv
  • Start date
  • #1
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Homework Statement



When I measure CB ciruit:
cx53fiyhqs1xxlokcfe.png

I have got these results:
xxer7tg35jruq8wnrxn.png


And here CE:
7i6xjfvb09dzkgncvt6i.png

1od1gc5pnuzqx0w8x0.png



Homework Equations





The Attempt at a Solution


So.. here is table, how to calculate h parameters:
onac6pa5p06f8jfg8zv.png


But I don't understand, am I using it correctly. When I use results of my table where results are 0, then always h parameters is 0 or infinity.
Both circuit is without resistance.. so Hie should be 0?
How to calculate there parameters correctly?
 

Answers and Replies

  • #2
34,951
11,140
Zero measured current just means your amperemeter was not precise enough. Ignore those (and maybe very small current values as well).
Zero voltage values: Similar issue, ignore them.
 

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