Connect with us

How do you find Carrier Amplitude for given AM wave signal

Reply to Thread

Discussion in 'General Electronics' started by sam, Apr 30, 2004.

Apr 30, 2004 #1

sam Guest

hi i am tryig to calculte this
y1(t) = A(1+mcos(2pi5000t))cos (2pi80000t)

and have to find minimum value of A when y1(t) is greater than or
equal to .2V for all t
how do you find that i have simplified that equation using trig
iden...but still not sure how to find that A
please help
thank u
Apr 30, 2004 #2

iQbal Guest

Cosine will not exceed +/- 1
Sine will not exceed +/- 1
Therefore
the positive peak would be +A + Am = A(1+m);
The neagtive peak would be be -A(1+m);

iQbal
Apr 30, 2004 #3

Bob Stephens Guest

Cosine will not exceed +/- 1
Sine will not exceed +/- 1
Therefore
the positive peak would be +A + Am = A(1+m);
The neagtive peak would be be -A(1+m);

iQbal
Click to expand...

And thank the nice man for doing your homework.

(You must log in or sign up to reply here.)

Ask a Question

Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.

Similar Threads

Loading...