What do they mean ( BQ1 )?

Thread Starter

doug08

Joined Jan 30, 2011
153
I have a formula which makes no sense to me. Here it is:


R1 = VbeQ1
_____

Ireg - IQ1 / BQ1


What is the (BQ1)? What do they want to know regarding the base of Q1?


Thanks.
 

Jony130

Joined Feb 17, 2009
4,983
Yes for sure IQ1 is the Q1 collector current. And BQ1 is a BJT current gain β (beta) also known as hfe. β = Ic/Ib
 
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