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Consider the circuit shown in Figure 4.14(a) for the case in which R = 10kOhm. The power supply V* has a dc value of 10V over which is super-imposed a 60HZ sinusoid of 1V peak amplitude (known as the supply rinnle)

Consider the circuit shown in Figure 4.14(a) for the case in which R = 10kOhm. The power supply V* has a dc value of 10V over which is super-imposed a 60HZ sinusoid of 1V peak amplitude (known as the supply rinnle)

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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Example 4.5: Small-Signal Model · Consider the circuit shown in Figure 4.14(a) for the case in which R = 10kOhm. The power supply V* has a dc value of 10V over which is super-imposed a 60HZ sinusoid of 1V peak amplitude (known as the supply ripple) - Q: Calculate both the dc voltage of the diode and the amplitude of the sine-wave signal observed across the diode. · Assume diode to have 0.7V drop at 1mA current. 52 A V+ A 10 V ER + UD (a) (b) R + (c) Figure 4.14: (a) circuit for Example 4.5. (b) circuit for calculating the dc operating point. (c) small-signal equivalent circuit. 53
Transcribed Image Text:Example 4.5: Small-Signal Model · Consider the circuit shown in Figure 4.14(a) for the case in which R = 10kOhm. The power supply V* has a dc value of 10V over which is super-imposed a 60HZ sinusoid of 1V peak amplitude (known as the supply ripple) - Q: Calculate both the dc voltage of the diode and the amplitude of the sine-wave signal observed across the diode. · Assume diode to have 0.7V drop at 1mA current. 52 A V+ A 10 V ER + UD (a) (b) R + (c) Figure 4.14: (a) circuit for Example 4.5. (b) circuit for calculating the dc operating point. (c) small-signal equivalent circuit. 53
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