Reply to following questions below

Reply to following questions below


“The collector-base junction is reverse-biased . . .”

That is true for all transistor amplifiers, regardless of biasing method.

“Due to the negative feedback loop created between the emitter and the collector . . .” — and — “A negative feedback effect is produced by the voltage drop across the collector-base junction . . .”

The collector pin and CB PN  junction are not part of the negative feedback mechanism for an emitter  biased transistor.  What is really happening to produce the negative  feedback?

“Base bias, on the other hand, is less stable than emitter bias since it is dependent on a single forward-biased junction.”

Only the BE PN junction is  forward biased in all transistor amplifiers.  What is the real reason  that base biased transistors are affected more by changes in beta than  emitter biased transistors?  I think you misunderstood what Boylestad  and Nashelsky wrote.

“the Q-point shift caused by  temperature is more pronounced in base bias topologies because there is  only one forward-biased junction in the base bias configuration, which  makes it more sensitive to temperature fluctuations,”

All transistor amplifiers have  only one forward-biased PN junction — the base-emitter junction.  The  collector-base junction is always reverse biased.  This does not affect  stability.  What is really happening?

“Emitter-feedback bias has the  additional benefit of doing away with the separate biasing resistor that  base bias systems frequently ask for.”

Base bias circuits always have a base resistor, but no emitter resistor.

Emitter bias circuits usually  have an emitter resistor, but no base resistor.  The number of  components is the same, so a lower component count is not an  “improvement”.  What is?