While looking at transistor based circuits, I am always trying to understand it with the transistor operating regions.
While looking at a push pull transistor based circuit, I want to understand in what transistor operating region the NPN and PNP transistor will be working. It can't be working in cut-off. So, is it in saturation state or active/linear state in push pull configuration?
It is always a dilemma between the saturation and active state. I have now figured on how to find out whether a transistor is working in saturation or active state (using the Ic and Ib factors, forced drive or overdrive factors.) But in a simple push pull configuration, there are no resistors. So, I am not able to find the working region of the transistor. Can anyone help with this?
Similarly, in a current mirror circuit, I understand that both the matched transistors need to be in active region for proper working in the current mirror operation. But how do you find out the operating region of the transistor with no Ic or Ib factors?