Schaum s outline of electronic devices and circuits second edition cathey jimmie
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Using the result of Problem 3. We may do so because reactances asso- ciated with inherent capacitances have been assumed infinitely large neglected in the equivalent circuit. Netlist code available at author website. Sketch the results on a transfer characteristic. Manufactured in the United States of America. A complete Bode plot is shown in Fig. Since the load line is continually changing, it is referred to as a dynamic load line.

An ideal voltage source is deactivated by replacing it with a short circuit. The Thevenin equivalent circuit of Problem 2. Click Here for Terms of Use. Any desired signal can be measured directly in the time domain to form signal ratios that yield current and voltage gains. Also, by 1 , iD2 Â¼ 0. If the independent source is deactivated, then vg Â¼ 0; thus, gm vg Â¼ 0, and the dependent current source acts as an open circuit. In the circuit of Fig.

Setting V2 Â¼ 0 in 1. Except as permitted under the Copyright Act of 1976 and the right to store and retrieve one copy of the work, you may not decompile, disassemble, reverse engineer, reproduce, modify, create derivative works based upon, transmit, distribute, disseminate, sell, publish or subUcense the work or any part of it without McGraw-Hill's prior consent. Find the value of that just results in saturation if a the capacitor is present, and h the capacitor is replaced with a short circuit. Determine the smallest value of duty cycle possible if the inductor current is continuous. Each year, hundreds of thousands of students improve their test scores and final grades with these indispensable study guides. Use the circuit of Fig.

Since the average value of a sinusoidal function of time is zero, the half-cycle average value, which is nonzero, is often useful. Support this statement by calculating the collector power dissipated in a Prob- lem 3. Examination of the output voltage vL shows that the spike is clipped so that only a 0. The linearized equation set describes the circuit in terms of its interconnected passive elements and independent or controlled voltage and current sources; formulation and solution require knowledge of the circuit analysis and circuit reduction principles reviewed in this chapter. Values can be calculated for the nominal, maximum, and minimum transfer characteristics using {4. For the frequency-sensitive two-port network of Fig. It will help you cut study time, hone problem-solving skills, and achieve your personal best on exams and projects! It will help you cut study time, hone problem-solving skills, and achieve your personal best on exams and projects! Circuits containing electronic devices are analyzed and designed either by utilizing graphs of experimentally measured characteristics or by linearizing the voltage-cvirrent characteristics of the devices.

If the dependency relation for the voltage or current of a controlled source is of the first degree, then the source is called a linear controlled or dependent source. Signal v2 is erratic, dropping below nominal logic level on occasion. Both features give the correct full- period values at the end of each period of the source waveform. Terminal 2 is the noninverting input labeled with a plus sign ; output due to V2 is phase-preserved. Find the h parameters for the two-port network of Fig. The inductor current is continuous. Verify that the voltage gain predicted by 9.

The simplest model, in Fig. Find a Fee, {h Rg, and c Rd- a By 4. Rather than put a trademark symbol after every occurrence of a trademarked name, we use names in an editorial fashion only, and to the benefit of the trademark owner, with no intention of infringement of the trademark. A sinusoidal source, a dc source, and a 10f2 resistor are connected as shown by Fig. Assume that the tran- sistor is the device of Example 5. A buck-boost converter with a 30-kHz switching frequency is operating with D Â¼ 0:25.

The range of frequencies above is called the high-frequency region. Support this statement by calculating the collector power dissipated in a Problem 3. Thus, V13 is the voltage across terminals 1 and 3, where terminal 1 is at a higher potential than terminal 3. If Vqg is of the polarity indicated in Fig. Assume an ideal op amp. The z parameters as given by 1.

The current gain is determined by the ratio of maximum or peak values of output current I'l} to input current ig as displayed by the lower plot of Fig. Find the TheÂ´venin equivalent for the circuit to the right of terminals b; b, assume that hre Â¼ hoe 0, and show that the circuit of Fig. Each year, hundreds of thousands of students improve their test scores and final grades with these indispensable study guides. Since the i-v characteristic has two breakpoints, two diodes are required. It is not necessary to add tiie current source Icbo of Fig- 5-1 as the parameter Isc of the transistor model specifies the collector-base leakage current.

The low-frequency gain magnitude is seen to have the value predicted by the results of Example 9. Use the op amp model of Section 9. In the circuit of Fig. The active or linear mode describes transistor operation in the region to the right of saturation and above cutoff in Figs. Netlist code available at author download site. However, the material from that chapter relating to triode vacuum tubes has been dispersed into Chapters 4 and 7. As a consequence of the above approximations, vL and iL can be appropriately determined by 10.