Ignoring early effect, if R2 is the total resistance at the collector, what could be the approximate output pole of a simple C.E. stage?(a) 1 / [R2 * (Ccs + Cµ*(1 + 2/gm*R2))](b) 1 / [R2 * (Ccs – Cµ*(1 + 1/gm*R2))](c) 1 / [R2 * (Ccs + Cµ*(1 – 1/gm*R2))](d) 1 / [R2 * (Ccs + Cµ*(1 + 1/gm*R2))]The question was asked during a job interview.I need to ask this question from Effect of Various Capacitors on Frequency Response in section Transistor Frequency Response of Analog Circuits

Ignoring early effect, if R2 is the total resistance at the collector,

1.	Ignoring early effect, if R2 is the total resistance at the collector, what could be the approximate output pole of a simple C.E. stage?(a) 1 / [R2 * (Ccs + Cµ(1 + 2/gmR2))](b) 1 / [R2 * (Ccs – Cµ(1 + 1/gmR2))](c) 1 / [R2 * (Ccs + Cµ(1 – 1/gmR2))](d) 1 / [R2 * (Ccs + Cµ(1 + 1/gmR2))]The question was asked during a job interview.I need to ask this question from Effect of Various Capacitors on Frequency Response in section Transistor Frequency Response of Analog Circuits
Answer» Correct option is (d) 1 / [R2 * (Ccs + Cµ(1 + 1/gmR2))] The best explanation: The output pole can be APPROXIMATELY calculated by OBSERVING the output node. For a C.E. stage, the output node is the node where the Collector of the B.J.T. is connected to the output MEASURING device. The product of TOTAL resistance and CAPACITANCE connected at that particular node is R2 * Cout and Cout is (Ccs + Cµ(1 + 1/gmR2). The inverse of this product gives us the output pole. Thus the correct option is 1 / [R2 * (Ccs + Cµ(1 + 1/gmR2))].

Discussion

No Comment Found

Related InterviewSolutions

During high frequency applications of a B.J.T., which parasitic capacitors arise between the base and the emitter?(a) Cje and Cb(b) Ccs(c) Cb(d) Ccs and CbThe question was asked in unit test.I'd like to ask this question from Effect of Various Capacitors on Frequency Response in chapter Transistor Frequency Response of Analog Circuits
During high frequency applications of a B.J.T., which parasitic capacitors arise between the collector and the emitter?(a) No capacitor arises(b) Ccs(c) Cb(d) Ccs and CbThe question was asked in my homework.Query is from Effect of Various Capacitors on Frequency Response in portion Transistor Frequency Response of Analog Circuits
During high frequency applications of a B.J.T, which parasitic capacitors arise between the collector and the base?(a) Cje and Cb(b) Ccs(c) Cπ(d) CµI got this question in an interview for internship.Question is from Effect of Various Capacitors on Frequency Response in portion Transistor Frequency Response of Analog Circuits
Which parasitic capacitors are present at the collector terminal of the B.J.T.?(a) Cje and Cb(b) Ccs and Cµ(c) Cb(d) Ccs and CbThis question was posed to me in an interview for job.Query is from Effect of Various Capacitors on Frequency Response topic in division Transistor Frequency Response of Analog Circuits
Which parasitic capacitors do not affect the frequency response of the C.E. stage, of the B.J.T.?(a) Cje and Cb(b) Ccs and Cµ(c) Cb and Cµ(d) No parasitic capacitor gets deactivatedI have been asked this question in a national level competition.My question is taken from Effect of Various Capacitors on Frequency Response in division Transistor Frequency Response of Analog Circuits
Which parasitic capacitors don’t affect the frequency response of the C.C. stage of the B.J.T.?(a) Ccs(b) Ccs and Cb(c) Cb(d) Ccs and CµI had been asked this question during an online interview.I would like to ask this question from Effect of Various Capacitors on Frequency Response in division Transistor Frequency Response of Analog Circuits
If the transconductance of the B.J.T increases, the transit frequency ______(a) Increases(b) Decreases(c) Doesn’t get affected(d) DoublesThis question was addressed to me in exam.My question is from Effect of Various Capacitors on Frequency Response topic in division Transistor Frequency Response of Analog Circuits
If the total capacitance between the base and the emitter increases by a factor of 2, the transit frequency __________(a) reduces by 2(b) increases by 2(c) reduces by 4(d) increases by 4The question was posed to me during a job interview.Origin of the question is Effect of Various Capacitors on Frequency Response topic in chapter Transistor Frequency Response of Analog Circuits
Which effect plays a critical role in producing changes in the frequency response of the B.J.T.?(a) Thevenin’s effect(b) Miller effect(c) Tellegen’s effect(d) Norton’s effectI got this question in quiz.Asked question is from Effect of Various Capacitors on Frequency Response in section Transistor Frequency Response of Analog Circuits
If a C.E. stage has a load Rl and transconductance gm, what is the factor by which the capacitance between the base and the collector at the input side gets multiplied?(a) 1 + gmRl(b) 1 – gmRl(c) 1 + 2*gmRl(d) 1 – 2*gmRlI had been asked this question during an online exam.The query is from Effect of Various Capacitors on Frequency Response topic in chapter Transistor Frequency Response of Analog Circuits

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment