75.그림과 같은 회로의 전달함수는?

1

2

정답

3

4

해설

G(S) = Cs+1/R1 / Cs+1/R1+1/R2 = (RCs+1) / R1Cs+1+R1/R2 = (Rcs+1) / (R1Cs + (R2+R1/R2)) = (T1s+1) / (T1s + 1/T2) = T2(T1s+1) / (T1T2s+1)