Analog Electronics - Study Mode
[#221] The given circuit represents the amplifier type as:
Correct Answer
(B) voltage-shunt feedback
[#222] Consider the common-collector amplifier in the figure (bias circuitry ensures that the transistor operates in forward active region, but has been omitted for simplicity). Let I C be the collector current, V BE be the base-emitter voltage and V T be the thermal voltage. Also, g m and r o are the small-signal trans-conductance and output resistance of the transistor, respectively. Which one of the following conditions ensures a nearly constant small signal voltage gain for a wide range of values of R E ?
Correct Answer
(B) I C R E >> V T
[#223] Find V O for the given circuit. (Assume ideal diode)
Correct Answer
(B) +35 V, +5 V
[#224] Which of the stages listed below would drive the loudspeaker, in a class D amplifier?
Correct Answer
(D) A mosfet power switch
[#225] In a digital frequency meter, the Schmitt trigger is used for
Correct Answer
(A) Converting sinusoidal waveforms into rectangular pulses