- #1
likephysics
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What is the requirement to turn on a transistor. I always thought Base-Emitter junction should be forward biased.
But I was looking at the TTL inverter and in that ckt, the collector of one transistor is connected to base of another transistor. How do you find out the voltage on the collector?
Ic=beta*Ib - is it valid even when B-E junction is not forward biased?
I am normally used to seeing B-E junction fwd biased and C-B reverse biased. The TTL inverter is a bit confusing.
Link - fig 10-16, page 159.
http://books.google.com/books?id=Qq...Ni1Cw&sa=X&oi=book_result&ct=result&resnum=10
But I was looking at the TTL inverter and in that ckt, the collector of one transistor is connected to base of another transistor. How do you find out the voltage on the collector?
Ic=beta*Ib - is it valid even when B-E junction is not forward biased?
I am normally used to seeing B-E junction fwd biased and C-B reverse biased. The TTL inverter is a bit confusing.
Link - fig 10-16, page 159.
http://books.google.com/books?id=Qq...Ni1Cw&sa=X&oi=book_result&ct=result&resnum=10