palmeiras
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Hello guys,
Could you please, help me with the following basic question about RLC? (Book Razavi pag. 488).
(a) It is said that for very small frequencies near zero, the voltage gain is very small. Only to confirm: is it true because the impedance of this parallel of LP/Rp/CP at frequencies near zero, is very small?
(b) Razavi says: "The inductor cannot sustain a large dc drop. In other others words, if the average value of vout deviates significantly from VDD, then the inductor series resistance must carry an average current greater then I1”.
Why the current should be greater than I1?
Thank you very much,
Could you please, help me with the following basic question about RLC? (Book Razavi pag. 488).
(a) It is said that for very small frequencies near zero, the voltage gain is very small. Only to confirm: is it true because the impedance of this parallel of LP/Rp/CP at frequencies near zero, is very small?
(b) Razavi says: "The inductor cannot sustain a large dc drop. In other others words, if the average value of vout deviates significantly from VDD, then the inductor series resistance must carry an average current greater then I1”.
Why the current should be greater than I1?
Thank you very much,