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AMPLIFIERS AND OPERATIONAL AMPLIFIER CIRCUITS

[CHAP. 5 

5.45

Find v2 in the leaky integrator of Fig. 5-24 with R1 ¼ Rf ¼ 1 k, C ¼ 1 mF, and v1 ¼ ( Ans:

v2 ðtÞ ¼

1 þ e1000t ðVÞ 0 

1V 0

t>0 . t<0

t>0 t<0 1V 0

t<0 . t>0



e1000t ðVÞ 1 V

t>0 t<0

5.46

Repeat Problem 5.45 for v1 ¼

5.47

In the differential equation 102 dv2 =dt þ v2 ¼ vs , vs is the forcing function and v2 is the response. Design an op amp circuit to obtain v2 from vs . Ans: See Fig. 5-24, with R1 ¼ Rf ; RC ¼ 102 , and v1 ¼ vs .

5.48

Design a circuit containing op amps to solve the following set of equations:

Ans:

v2 ðtÞ ¼

y 0 þ x ¼ vs1 2y þ x 0 þ 3x ¼ vs2 Ans. See Fig. 5-55, with R1 C ¼ R4 C ¼ 1 s, R2 C ¼ 13 s, R3 C ¼ 12 s.

Fig. 5-55

Mahmood_Nahvi_eBook_Schaum_s_Outlines_Theory_An  
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