Explanation Introduction: Since a diode is a nonlinear device, some portion of the analysis of a diode circuit includes deciding whether the diode is on or off. The various on and off combinations of a circuit involving more than one diode complicates the circuit. Consider two single-diode circuits. Figure 1 shows a diode in series with a resistance. Here V 0 versus V 1 shows the linear nature of this circuit as shown in Figure 2. Until V 1 =V y is achieved the diode does not conduct. Figure 1 Figure 2 In figure 3 the diode remains conducts current for V 1 <V s <V y , and the output is v 0 =v 1 +v y . When v 1 >V s − V y , the diode turns off and the current through the resistance is null, therefore, the outcome remains consistent at V s . Figure 3 Figure 4 The above explanation demonstrates that there are regions where the diode is on or conducting and regions where the diode is off or non conducting. The diode may be on or off for circuit having number of diodes. If we assume that V + > V − and V + − V − > V y , there is at least a possibility that D 2 can be turned on

MICROELECT. CIRCUIT ANALYSIS&DESIGN (LL)

4th Edition

ISBN: 9781266368622

Author: NEAMEN

Publisher: MCG

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To explain: The procedure used in the analysis of a circuit containing two diodes. Also, the number of initial assumptions concerning the state of the circuit.

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Assume that an input signal is applied to the circuit given above, as shown in the figure next to it. Accordingly, answer the following questions. The diodes used are silicon diodes, their operating voltages are 0.7 volts, and can be omitted because their resistance is very small. a) Write the name of this circuit, thinking about which circuit we do in the courses is equivalent to the purpose. b) What are the diodes/diodes that are active in a positive half-loop? Please type. c) What are the diodes/diodes active in the negative half-loop? Please type. d) Calculate ? ?−???( ?? ) for this circuit.

Q1 Figure Q1(a) is a full wave bridge circuit with a capacitor filter and the output waveform produced by the circuit is shown in Figure Q1(b). Assume all the diodes in the circuit have a forward voltage of 0.7 V. (a) Sketch the waveform in A, B, C and D as shown in Figure Q1(a).

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MICROELECT. CIRCUIT ANALYSIS&DESIGN (LL)

Ch. 2 - Repeat Example 2.1 if the input voltage is...Ch. 2 - Consider the bridge circuit shown in Figure 2.6(a)...Ch. 2 - Assume the input signal to a rectifier circuit has...Ch. 2 - The input voltage to the halfwave rectifier in...Ch. 2 - Consider the circuit in Figure 2.4. The input...Ch. 2 - The circuit in Figure 2.5(a) is used to rectify a...Ch. 2 - The secondary transformer voltage of the rectifier...Ch. 2 - Determine the fraction (percent) of the cycle that...Ch. 2 - The Zener diode regulator circuit shown in Figure...Ch. 2 - Repeat Example 2.6 for rz=4 . Assume all other...

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The procedure used in the analysis of a circuit containing two diodes. Also, the number of initial assumptions concerning the state of the circuit.

Solution Summary: The author explains the procedure used in the analysis of a circuit containing two diodes and the number of initial assumptions concerning the state of the circuit.

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To explain: The procedure used in the analysis of a circuit containing two diodes. Also, the number of initial assumptions concerning the state of the circuit.

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