extra analog 2 Flashcards
(15 cards)
AC signals see a coupling capacitor as a _____ while a DC signals see it as an ____
short / open
power mosfets are ____ prone to ESD than BJT
more
a ____ coulping capacitor will add a DC component to the output signal
shorted
classes of amplifiers
inverted:
noninverted:
inverted: class A
noninverted: class B, AB, C
push pull amplifiers are class _____ or _____ amplifiers
B / AB
class _____ is biases slightly above cutoff to avoid _____
class AB / crossover distortion
an emitter bias:
utilizes _____ opposite polarity power supplies for biasing
provides excellent _____ in spite of changes in beta and temp
2 / bias stability
_____ is used to create an offsetting effect to make the Q-point more stable in biasing circuits
negative feedback
what is used as a high power amplifier?
common emitter bias
in an emitter bias configuration, the emitter resistor (RE) is used to ?
provide negative feedback
the collector feedback bias configuraiton is designed to ?
stabilize the operating point (Q-point)
what is the advantage and disadvantage of a base bias
advantage: only uses 1 resistor to obtain bias
disadvantage: is very beta dependent
the ____ is defined by the operating point of the transistor without input signal
Q-point
what are the other names for a common collector amplifier?
emitter follower & buffer
class AB amps are combine characteristics of class ____ & ____ amplifiers
A & B
