- #1
Harrison G
- 41
- 2
Homework Statement
Hello my fellow PF mates! Today i received my electronic textbook from Russia. The book is great, however i can't explain myself one single equation, but i hope you will help me:-)
The question is about the blocking capacitor in a common emitter amplifier. R1 and R2 are the voltage divider resistors (sorry, but i still haven't learned how to post images) and C is the blocking capacitor.
There is one relationship that i can't figure out.
Homework Equations
The textbook says that when choosing C, C>= 1/2пf(R1||R2)
My question is why C should be equal or greater then 1/2пf(R1||R2)?