TAILIEUCHUNG - Electric Circuits, 9th Edition P20

Electric Circuits, 9th Edition P20. Designed for use in a one or two-semester Introductory Circuit Analysis or Circuit Theory Course taught in Electrical or Computer Engineering Departments. Electric Circuits 9/e is the most widely used introductory circuits textbook of the past 25 years. As this book has evolved over the years to meet the changing learning styles of students, importantly, the underlying teaching approaches and philosophies remain unchanged. | 166 The Operational Amplifier Figure 5kil -AW- io kn -AW- Section Figure a Design an inverting amplifier using an ideal op p nSR iGFM amP that has a gain of 3. Use a set of identical resistors from Appendix H. b If you wish to amplify a 5 V input signal using the circuit you designed in part a what are the smallest power supply signals you can use The op amp in the circuit in Fig. is ideal. a Find the range of values for a in which the op amp does not saturate. b Find it in microamperes when a . Figure a The op amp in the circuit shown in Fig. is pspice ideal. The adjustable resistor 7 has a maxi- ULTISIM mum value of 100 kil and a is restricted to the range of a 1 Calculate the range of vo if - 40 mV. b If a is not restricted at what value of a will the op amp saturate Section Refer to the circuit in Fig. where the op amp pspice is assumed to be ideal. Given that Ra 4 kfl MKLHSIM 5kfl Rc 20kil 200 mV vb 150 mV vc 400 mV and Vcc 6 V specify the range of Rf for which the op amp operates within its linear region. The op amp in Fig. is ideal. pspice a y hat circuit configuration is shown in this figure MULTISIM b Find vo if va IV V and vc -4 V. c The voltages va and vc remain at 1 V and -4 V respectively. What are the limits on -yb if the op amp operates within its linear region Figure Design an inverting-summing amplifier so that DESIGN problem V - 3va 5t b 4uc 2t d . PSPICE multisim Start by choosing a feedback resistor Rf from Appendix H. Then choose single resistors from Appendix H or construct resistor neworks from resistors in Appendix H to satisfy the design values for Ra Rh Rc and Rd. Draw your final circuit diagram. Problems 167 a The op amp in Fig. is ideal. Find va if pspice 4 V 9 V. vc 13 V and yd 8 V. b Assume vc. and vd retain their values as given in a . Specify the range of va such that the op amp operates within its linear region. Figure .

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