Question

8 using a 250nF capacitor. (a) Draw the OPP. HP amp-based high-pass filter with a cut-off of 4kHz and a passband gain of of capacitor. (a) Draw the circuit, label the component values and the output voltage Coif th I the value of the feedback resistor in the filter is changed but the value of the resistor in the forward path is unchanged, what can changed? The input the filter is 250 coswin n the forward path is unchanged, what characteristic of the filter is ne input the filter is 250 coswt mV. (c) Find the output voltage when W = Wc, W = 5W. (25 points) W=5w. Wez 46 the Veľ RTI W = 5(250) (W = psoth

Answer 1

1.273 koz mm 250 nF 2015 & Ril te = 1TB, C = c = 25oxio? 2 159.15 R - - 2T X250x107x4x103 h = R2 = 8 Ri = 1.273k z Rg= 8x 159.15 6 wath the value of Rp changed, pass band well be changed, but gais es cut off frequency remais sane. @ Vi = 250 Cos (at) mv Vo = Ve (7 3 ay I- I when we we, Vo = Ve = 250x103 Loo x 441-45 = 1414-43x107245 Volt) = 1414. 43 Cos (80007t +225 mV.

when a = 5 We, Vo = Vi (-8 - wc I 50 = 250 x103 ( 81180° U-10.2 = 250x103 Loo x 81180 1.02-11.31 = 1960x10 3 191.310 Volt) = 1960 Cos (40000t + 191.310 mv