Dec 13, 2022 #1 T transign Junior Member level 2 Joined Dec 2, 2020 Messages 20 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 176 Hi, which is the input impedance of the circuit presented ? Thanks!
Dec 13, 2022 #2 danadakk Advanced Member level 6 Joined Mar 26, 2018 Messages 3,371 Helped 423 Reputation 867 Reaction score 786 Trophy points 113 Activity points 14,480 Use a simple model and write the loop and node equations, and then use PFE to extract the input RLC lumped elements for Zin ? Small Signal Model of MOSFET - EEEGUIDE.COM If the small bulk resistances of the source and drain are neglected, the Small Signal Model of MOSFET and its equivalent circuit between www.eeeguide.com Or DC model : Regards, Dana. Upvote 0 Downvote
Use a simple model and write the loop and node equations, and then use PFE to extract the input RLC lumped elements for Zin ? Small Signal Model of MOSFET - EEEGUIDE.COM If the small bulk resistances of the source and drain are neglected, the Small Signal Model of MOSFET and its equivalent circuit between www.eeeguide.com Or DC model : Regards, Dana.
Dec 13, 2022 #3 T transign Junior Member level 2 Joined Dec 2, 2020 Messages 20 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 176 for the transistor working as a TIA which is the equal dependent source of the small signal model? the one above is as voltage amplifier operation Upvote 0 Downvote
for the transistor working as a TIA which is the equal dependent source of the small signal model? the one above is as voltage amplifier operation
Dec 13, 2022 #4 danadakk Advanced Member level 6 Joined Mar 26, 2018 Messages 3,371 Helped 423 Reputation 867 Reaction score 786 Trophy points 113 Activity points 14,480 gm*Vgs output current source of either model is the dependent source, the internal gain element of the Transistor. The MOSFET is basically a V to I transfer function. http://www.ittc.ku.edu/~jstiles/312/handouts/Steps%20for%20MOSFET%20Small%20Signal%20Analysis.pdf Regards, Dana., Upvote 0 Downvote
gm*Vgs output current source of either model is the dependent source, the internal gain element of the Transistor. The MOSFET is basically a V to I transfer function. http://www.ittc.ku.edu/~jstiles/312/handouts/Steps%20for%20MOSFET%20Small%20Signal%20Analysis.pdf Regards, Dana.,