By Steven Karris

This article is an creation to the elemental ideas of electric engineering and covers DC and AC circuit research and Transients. it truly is meant for all engineering majors and presumes wisdom of first yr differential and fundamental calculus and physics. The final chapters contain step by step methods for the strategies of straightforward differential equations utilized in the derivation of the traditional and forces responses. Appendices A, B, and C are introductions to MATLAB, Simulink, and SimPowerSystems respectively. Appendix D is a evaluate of advanced Numbers, and Appendix E is an advent to matrices and determinants. for more information. please stopover at the Orchard courses web site

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Extra info for Circuit Analysis I with MATLAB Computing and Simulink/SimPowerSystems Modeling

Sample text

69) and the constants k and  will be evaluated from the initial conditions. 69), we evaluate it at t = 0 , we write the equation which describes the circuit at t = 0 + , and we equate these two expressions. 70). 21. 21. 83 sec . Values for the maximum and minimum accurate to 3 decimal places are determined with the MATLAB script below. 981 The maximum and minimum values and the times at which they occur are listed in the table below. 75) and setting it equal to zero. 2 Response of Parallel RLC Circuits with AC Excitation The total response of a parallel RLC circuit that is excited by a sinusoidal source also consists of the natural and forced response components.

62) v  t  = e  5 + k2 t  As before, we need to compute the derivative dv  dt in order to apply the second initial condition and find the value of the constant k 2 . 19. 19. 67), we see that at t = 0 , v  t  = 5 V and thus the second initial condition is satisfied. 67). 20, i L  0  = 2 A and v C  0  = 5 V . Compute and sketch v  t  for t  0 . 20. 5 Solution: This is the same circuit as the that of the two previous examples except that the resistance has been increased to 50  . 96 and as before, 2 1 1  0 = -------- = ---------------------------- = 64 10  1  640 LC Also,  20   2P .

26 a known as a Multiple Feed Back (MFB) active lowpass filter. For this circuit, the initial conditions are v C1 = v C2 = 0 . Compute and sketch v out  t  for t  0 . 26. 83) 130 Circuit Analysis II with MATLAB Computing and Simulink / SimPowerSystems Modeling Copyright © Orchard Publications Other Second Order Circuits We observe that v 2 = 0 (virtual ground). 92). syms s; y0=solve('s^2+2*10^3*s+2*10^6') % Must have Symbolic Math Toolbox installed y0 = [-1000+1000*i] [-1000-1000*i] that is, s 1 ,s 2 = –   j = – 1000  j1000 = 1000  – 1  j1  We cannot classify the given circuit as series or parallel and therefore, we should not use the damping ratio  S or  P .

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