|
This circuit has me confused. The bottom transistor has its base and emitter shorted. In effect I don't think it would ever forward bias and thus doesn't actually have any function at all.
Am I missing something or would the circuit run the same if it were removed? It looks like it should almost be a classic linear constant current sink, but in the normal ones you see in the textbook there's a resistor between the base and emitter and the current ends up being ~0.7V / resistor.
I'm confused.
|