Jan 3, 2012 #1 B baby_1 Advanced Member level 1 Joined Dec 3, 2010 Messages 415 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,298 Activity points 4,277 hello my friends please download the attachment and see the 15 page View attachment Lec_19_Colpitts_Osc_10.pdf i see every where that oscillation frequency: **broken link removed** what is diffrence?
hello my friends please download the attachment and see the 15 page View attachment Lec_19_Colpitts_Osc_10.pdf i see every where that oscillation frequency: **broken link removed** what is diffrence?
Jan 3, 2012 #2 LvW Advanced Member level 6 Joined May 7, 2008 Messages 5,910 Helped 1,753 Reputation 3,512 Reaction score 1,364 Trophy points 1,393 Location Germany Activity points 40,401 Sorry, but I doubt that you "see everywhere" for the Colpitt type the formula as given with your 2nd link. Instead, the formula as given in the pdf doc is correct. -
Sorry, but I doubt that you "see everywhere" for the Colpitt type the formula as given with your 2nd link. Instead, the formula as given in the pdf doc is correct. -
Jan 3, 2012 #3 U uday mehta Advanced Member level 4 Joined Dec 30, 2011 Messages 104 Helped 6 Reputation 12 Reaction score 6 Trophy points 1,298 Activity points 1,979 formula in your 2nd link is used for negative feedback. which is basic requirement for oscillation.(for constant gain)
formula in your 2nd link is used for negative feedback. which is basic requirement for oscillation.(for constant gain)
Jan 3, 2012 #4 B baby_1 Advanced Member level 1 Joined Dec 3, 2010 Messages 415 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,298 Activity points 4,277 could you tell more about uday mehta? how it is possible that we have oscillation with negative feedback?
could you tell more about uday mehta? how it is possible that we have oscillation with negative feedback?
Jan 3, 2012 #5 Z zorro Advanced Member level 4 Joined Sep 6, 2001 Messages 1,130 Helped 357 Reputation 712 Reaction score 298 Trophy points 1,363 Location Argentina Activity points 8,913 They are the same, provided that C is the series of C1 with C2 (C=C1*C2/(C1+C2) and of course Wx=2*pi*f0. Z Last edited: Jan 3, 2012
They are the same, provided that C is the series of C1 with C2 (C=C1*C2/(C1+C2) and of course Wx=2*pi*f0. Z
Jan 3, 2012 #6 U uday mehta Advanced Member level 4 Joined Dec 30, 2011 Messages 104 Helped 6 Reputation 12 Reaction score 6 Trophy points 1,298 Activity points 1,979 sorry I had a mistake. both answers are correct. in your pdf W is given. and w=2*pi*f in your second link c=(1/c1+1/c2)
sorry I had a mistake. both answers are correct. in your pdf W is given. and w=2*pi*f in your second link c=(1/c1+1/c2)