Dec 30, 2016 #1 R reyhane12 Newbie level 3 Joined May 16, 2016 Messages 3 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 35 Hello, How can we calculate a common gate amplifier gain which doesn't have any resistance in its drain? ro is neglected.
Hello, How can we calculate a common gate amplifier gain which doesn't have any resistance in its drain? ro is neglected.
Dec 30, 2016 #2 FvM Super Moderator Staff member Joined Jan 22, 2008 Messages 53,099 Helped 14,792 Reputation 29,871 Reaction score 14,290 Trophy points 1,393 Location Bochum, Germany Activity points 301,018 There will be a load impedance.
Dec 30, 2016 #3 R reyhane12 Newbie level 3 Joined May 16, 2016 Messages 3 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 35 FvM said: There will be a load impedance. Click to expand... The circuit is attached. https://obrazki.elektroda.pl/5960498500_1483097304.png - - - Updated - - - FvM said: There will be a load impedance. Click to expand... I don't understand, would you explain more? I have sent the circuit.
FvM said: There will be a load impedance. Click to expand... The circuit is attached. https://obrazki.elektroda.pl/5960498500_1483097304.png - - - Updated - - - FvM said: There will be a load impedance. Click to expand... I don't understand, would you explain more? I have sent the circuit.
Dec 30, 2016 #4 FvM Super Moderator Staff member Joined Jan 22, 2008 Messages 53,099 Helped 14,792 Reputation 29,871 Reaction score 14,290 Trophy points 1,393 Location Bochum, Germany Activity points 301,018 The circuit is incomplete. Presumed there's an ideal bias circuit and you are asking for voltage gain. Under your over-simplified assumptions, voltage gain is infinite. As simple as meaningless.
The circuit is incomplete. Presumed there's an ideal bias circuit and you are asking for voltage gain. Under your over-simplified assumptions, voltage gain is infinite. As simple as meaningless.
Dec 31, 2016 #5 LvW Advanced Member level 6 Joined May 7, 2008 Messages 5,915 Helped 1,754 Reputation 3,514 Reaction score 1,366 Trophy points 1,393 Location Germany Activity points 40,552 Each transistor based amplifier needs a supply voltage. Gain properties can be discussed for a working system only.
Each transistor based amplifier needs a supply voltage. Gain properties can be discussed for a working system only.