Simple question about KVL Equation in a BJT Circuit

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  • Thread starter ryNze
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  • #1
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Homework Statement



I am trying to find the KVL equation for this BJT in order to find Ib.
http://www.ece.auckland.ac.nz/oasis/a/att/qtatt/2028/2/261/IM010 [Broken]


Homework Equations





The Attempt at a Solution



My current equation looks like this.
Vcc - IcRc - IbRb - Vbe = 0

I am not entirely sure if this is correct.
 
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Answers and Replies

  • #2
rude man
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1. Is the drop across Rc really just IcRc? (Hint: you're close, but no cigars).
2. More importantly, what is the relationship between Ib and Ic for a BJT?
 
  • #3
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1. Is the drop across Rc really just IcRc? (Hint: you're close, but no cigars).
2. More importantly, what is the relationship between Ib and Ic for a BJT?
I just thought about it.
The base current and collector current equals to the emitter current.

So, the drop across the Rc is actually IeRc?
 
  • #4
rude man
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Yes. Add the IbRc term to your original equation, don't use Ie.

Now for part 2?
 

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