Download Circuit Systems with MATLAB and PSpice by Won Y. Yang PDF

By Won Y. Yang

Software program instruments utilized to circuit research and layout are speedily evolving, permitting scholars to maneuver past the time-consuming, math-intensive tools of conventional circuit guideline. by means of incorporating MATLAB 7.0 and PSpice 10.0, along systematic use of the Laplace remodel, Yang and Lee support readers speedily achieve an intuitive realizing of circuit strategies.

  • Unified scheme utilizing the Laplace rework hurries up comprehension
  • Focuses on studying strategies and comparing layout effects, no longer exhausting computation
  • Most examples illustrated with MATLAB analyses and PSpice simulations
  • Downloadable courses on hand for hands-on practice
  • Over a hundred thirty difficulties to enhance and expand conceptual understanding

Includes extended insurance of key parts such as:

  • Positive suggestions OP Amp circuits
  • Nonlinear resistor circuit analysis
  • Real global 555 timer circuit examples
  • Power issue correction programs
  • Three-phase AC strength method analysis
  • Two-port parameter conversion

Based on a long time of educating electric engineering scholars, Yang and Lee have written this article for an entire path in circuit idea or circuit research. Researchers and engineers with no vast electric engineering backgrounds also will locate this publication a invaluable advent to circuit structures

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Additional resources for Circuit Systems with MATLAB and PSpice

Example text

A) Noting that the meshes 2 and 3 sharing the current source I1 constitute a supermesh 23, KVL is applied to mesh 1, supermesh 23, and the loop A: Mesh 1 : vC1 þ vR3 À vR4 þ V1 þ vR2 ¼ 0 Supermesh 23 : ÀV1 þ vR4 þ vL6 þ vR5 ¼ 0 Loop A : vC1 þ vR3 þ vL6 þ vR5 þ vR2 ¼ 0 ðE1:2:1Þ ðE1:2:2Þ ðE1:2:3Þ (b) The dependence among the above KCL equations is checked. 3). This indicates that only two of the three equations are independent. (Question) Can KVL be applied to mesh 2 or mesh 3? (Answer) No, because the voltage across the current source I1 (hanging on to those meshes) is not specified in terms of its current.

Using this equivalent circuit, find the current iRL through RL . 5. 2(b). 1(c). 1(d). 2(a) shows the circuit in Fig. 3(b). 2(b)) and combined with the 3A source and the 2 resistor in parallel to make a ( )A-source in parallel with a ( ) resistor, as in Fig. 2(c). 2(d). 4(b). The 9V source with the 1 resistor in series can be transformed into a 9A source in parallel with the 1  resistor, the three voltage sources of 42V, 9V, and 12Vare combined into a 63V source, as in Fig. 3(c). 3(d). 5(b).

Write the KCL equations in the branch currents iR1 ; iR2 , and iR3 at those nodes. Substitute the above VCRs (voltage–current relationships) of the branch elements into the independent KCL equation(s) to find the node equations in the node voltages v2 and v3 . Are there as many independent KCL equations as estimated in (a)? (c) Unlike the voltage across the current source Is1 , the voltages across the resistors R1 , R2 , and R3 can be expressed in terms of the mesh currents i1 and i2 based on Ohm’s law as vR1 ¼ R1 iR1 ¼ R1 i1 ; vR2 ¼ R2 iR2 ¼ R2 i2 ; and vR3 ¼ R3 iR3 ¼ ÀR3 i2 ðP1:7:2Þ Find the appropriate mesh(es) or loop(s) around which KVL can be applied.

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