Google Groups no longer supports new Usenet posts or subscriptions. Historical content remains viewable.
Dismiss

What should be the value of the resistance?

1 view
Skip to first unread message

supahi mahanta

unread,
Oct 14, 2010, 2:15:01 AM10/14/10
to
Small signal voltage gain by one small resistance connected to emitter
through a large by passed resistance and junction to base resistance
for negative feedback. If small R is 0.22K and Rc=10K. What should be
its value?

William Sommerwerck

unread,
Oct 14, 2010, 8:46:31 AM10/14/10
to
You need to find a book on transistor circuit design. A college-level text
should be okay. The math isn't complex, so you shouldn't have trouble
understanding it.

Hint: Since the "big" resistor is bypassed, you can model the small-signal
AC gain as if the big resistor weren't there at all. DC feedback is the sum
of both resistors, of course.


Michael A. Terrell

unread,
Oct 14, 2010, 12:14:48 PM10/14/10
to


His question looks to have been copied from a poorly written
textbook.


--
Politicians should only get paid if the budget is balanced, and there is
enough left over to pay them.

William Sommerwerck

unread,
Oct 14, 2010, 12:27:10 PM10/14/10
to
>> You need to find a book on transistor circuit design. A college-level
>> text should be okay. The math isn't complex, so you shouldn't have
>> trouble understanding it.

> His question looks to have been copied from a poorly written
> textbook.

He's probably asking for someone to do his homework.


D Yuniskis

unread,
Oct 14, 2010, 2:09:15 PM10/14/10
to

Flip to the back of the book and see if there is a section
called "Answers to selected exercises"...

supahi mahanta

unread,
Oct 15, 2010, 2:30:55 AM10/15/10
to
On Oct 14, 9:27 pm, "William Sommerwerck" <grizzledgee...@comcast.net>
wrote:

Thank you so much for your valuable hint sir. This is not a homework
copied from any textbook. This arise in my mind while making a home
made material and your hint helped me a lot. Thank you.

0 new messages