Therefore stage 1 pole is moved closer to origin. The power amplifier or Class B amplifier, driven by a DC source amplifies that sigal ao as to drive an output load. A typical load would be an 8 ohm speaker. The upper half amplifies possitive signals while the lower half amplifies the negative signals. Class B complementary stage no voltage gain two emitter followers as shown below.
Causes cross over distortion.
This can be done with resistors or transistors. See Class B amplifiers handout for further detail and examples. In addition, Dr. Comer worked the homework problems due today on the board. November 26,1996 Dr. Comer lectured from 9.11 in manuscript. One way to do that is varying a Vos dc source until Vout goes to zero.