A bridgeamplifier is used to realize a high CMRR a high maxi

A bridge-amplifier is used to realize_______. a high CMRR a high maximum common-mode input voltage a high out-put voltage swing a high output resistance all of the above none of the above A V -multiplier is used for biasing______amplifier. Class A Class B Class AB Class E all of these Thermal shut-down circuit is connected to the_________of the operational amplifier. first-stage second-stage output stage from output to the input The second-breakdown in power BJTs is caused by____________. avalanche multiplication across B-C junction current-crowding in the periphery of B-E junction Zener breakdown across B-E junction melting of bond wire connecting the contact pads to package terminals A feedback amplifier with one pole is_________. unconditionally stable always unstable can be unstable depending on the amount of feedback none of these If the phase angle of A beta is -200 degree at the frequency where the magnitude of A beta = 1, then the feedback amplifier is____________. stable unstable cannot determine To obtain a phase Margin (PM) of ~60 degree, the magnitude vs. frequency plots of open loop gain, A, and 1/beta (inverse of the transfer of feedback circuit), should intersect each other with a slope difference of_____________. 60 dB/decade 40 dB/decade 20 dB/decade 0 dB/decade

Solution

(3) thermal shutdown circuit is connected to the output stage of operational amplifier

therefore the correct option is (c).

(4) the second breakdown in power BJT is caused due to current crowding periphery of B-E

therefore the correct option is (b).

(5) a feedback amplifier with one pole is unconditionally STABLE.

therefore the correct option is (a).