Question

Please do not copy the previous answer for this question. and please explain and write clearly. Many thanks!

Please answer questions 1,2,3 for n=1,8=2,a=3,B=4,8=5 The component values in the circuit shown in Fig. I are: • • • • vs(t) = A sin (2 reft) mV, where A = (2000+ n) and f = (10+8) Hz Ri -(1000 + a)2 R2-(1000+B) 22 R, (1000+ €) 22 For example, if n = 8,8 = 5 and a=1, Vs(t) = 2.008 sin( 30xt) V and R, = 1001 2. You may assume that the diode can be approximated by an ideal diode and that the op amp has saturation voltages of -15V and +15V. vs R₂31 Figure 1 Question 1 (5 marks) Calculate and record the numerical values of A, F, R. Rz, and R, (including units) in tabular form. Question 2 (5 marks) Referring to Fig. 1. draw the simplified equivalent circuits (i) when the diode is conducting and (ii) when the diode is not conducting. Indicate the ranges of v, over which the diode is (i) conducting and (ii) not conducting Question 3 (5 marks) Derive expressions for the voltage v, in terms of v., R, Rand R, (i) when the diode is conducting and (ii) when the diode is not conducting. Sketch v.(t) and v.(0) for two cycles of the sinewave v.().

Answer 1

Given n = 1, 8,0=3,3=4, E = 5 Vs(+)* A sin Qnft my A: f = 2003 12Hz 1003.12, R2 = 1004-.3 1005-12 . Vs(t)= 200) Sin (@txt) mv R = R3 Vo - when diode is conducting RI VP vo Range of us Up=UN when diode conduct when not conducting Vp = Us x R2 als 1004 0500245 RitRY 2004+1003 vb positives 2:001* 0.5002: 1-001V Va(t) 0 to 2.001 V. Vs(t) = 0-2.001 to ov Vict) 2.001 When conducting Up = VW 0.167 Vp: N A Toronto forces u Vs x R R+R2 10.0417 bat 20.4547 assec -> sec -2.0017 1.001 Zvo 1-0017 Ri+RE 0 162 X Vw = Upo Vs R2 when diode not conducting Vo = INR3 since INFO Vo=0 ooit No si o put