I understand basic analog electronics and network thery concepts. Have been doing a few questions lately. I can derive, using the small signal model the exact formula to compute the impedance seen while looking into a MOSFET or JFET from its drain or source terminal. I can mathematically understand that it is higher when looking through drain than when looking through source. BUT HOW?
I want to understand this qualitatively. Maybe it is the general case while looking into any current source from its either end but I want to seek a verbal description.
Thanks in advance to all those who will be replying. I really love this forum.
I want to understand this qualitatively. Maybe it is the general case while looking into any current source from its either end but I want to seek a verbal description.
Thanks in advance to all those who will be replying. I really love this forum.