Jun 16, 2006 #1 wjxcom Full Member level 5 Joined Sep 7, 2005 Messages 281 Helped 4 Reputation 8 Reaction score 3 Trophy points 1,298 Activity points 3,840 Hi all: I designed a full differential opa shown in the file opa.jpg, and I designed a cmfb circuit shown in the file cmfb.jpg too. Though I have already analyse the AC character of this opa, I do not know how to test the stability of the cmfb circuit, who can help me? thanx!!!
Hi all: I designed a full differential opa shown in the file opa.jpg, and I designed a cmfb circuit shown in the file cmfb.jpg too. Though I have already analyse the AC character of this opa, I do not know how to test the stability of the cmfb circuit, who can help me? thanx!!!
Jun 19, 2006 #2 wjxcom Full Member level 5 Joined Sep 7, 2005 Messages 281 Helped 4 Reputation 8 Reaction score 3 Trophy points 1,298 Activity points 3,840 thanx all: I have already know how to affirm the stability of a cmfb circuit. this is the simulation circuit!
thanx all: I have already know how to affirm the stability of a cmfb circuit. this is the simulation circuit!
Jun 20, 2006 #3 B boooser Junior Member level 1 Joined Jun 16, 2006 Messages 18 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,443 wjxcom said: thanx all: I have already know how to affirm the stability of a cmfb circuit. this is the simulation circuit! Click to expand... Can you explain it? thanx I guess test the GBW of the and phrase margin of the cmfb will help.
wjxcom said: thanx all: I have already know how to affirm the stability of a cmfb circuit. this is the simulation circuit! Click to expand... Can you explain it? thanx I guess test the GBW of the and phrase margin of the cmfb will help.