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Find the voltage v and the current i for each of the following sets of given values. For the first three parts, use the diagram to the right. Vo a. V = 0.54V, R = 322, and the voltage across the diode is equal to 0.7V when it is "on". V= b. V = 1.42V, R = 822, and the voltage across the diode is equal to 0.62V when it is "on". || V= i No || V= i || R c. V = -0.14V, R = 492, and the voltage across the diode is equal to 0.66V when it is "on". + DI

Find the voltage v and the current i for each of the following sets of given values. For the first three parts, use the diagram to the right. Vo a. V = 0.54V, R = 322, and the voltage across the diode is equal to 0.7V when it is "on". V= b. V = 1.42V, R = 822, and the voltage across the diode is equal to 0.62V when it is "on". || V= i No || V= i || R c. V = -0.14V, R = 492, and the voltage across the diode is equal to 0.66V when it is "on". + DI

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
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Find the voltage v and the current i for each of the following sets of given values. For the first three parts, use the diagram to the right. a. V = 0.54V, R = 32, and the voltage across the diode is equal to 0.7V when it is "on". V= i= b. V=1.42V, R = 82, and the voltage across the diode is equal to 0.62V when it is "on". V= i = V = i = For the last two parts, use the diagram to the right. d. V=-1.14V, R = 69, and the voltage across the diode is equal to 0.68V when it is "on". i c. Vo = -0.14V, R = 492, and the voltage across the diode is equal to 0.66V when it is "on". V= i = e. V = -0.16V, R = 59, and the voltage across the diode is equal to 0.64V when it is "on". V = Vo i = R www11 Vo R≤ KHI I + (Enter at least 3 significant digits. Each answer must be within 1% to be marked correct.) I c +
Transcribed Image Text:Find the voltage v and the current i for each of the following sets of given values. For the first three parts, use the diagram to the right. a. V = 0.54V, R = 32, and the voltage across the diode is equal to 0.7V when it is "on". V= i= b. V=1.42V, R = 82, and the voltage across the diode is equal to 0.62V when it is "on". V= i = V = i = For the last two parts, use the diagram to the right. d. V=-1.14V, R = 69, and the voltage across the diode is equal to 0.68V when it is "on". i c. Vo = -0.14V, R = 492, and the voltage across the diode is equal to 0.66V when it is "on". V= i = e. V = -0.16V, R = 59, and the voltage across the diode is equal to 0.64V when it is "on". V = Vo i = R www11 Vo R≤ KHI I + (Enter at least 3 significant digits. Each answer must be within 1% to be marked correct.) I c +
A diode is a two-terminal, electronic device made using semiconductors that is designed to prevent current from flowing in a particular direction. The symbol is a triangle pointing in the direction that (positive) current is allowed to flow and a wall preventing (positive) current from flowing in the opposite direction: 1: A diode has two modes, "on" and "off". When "on", current flows, and when "off", no current flows. We generally view diodes as either "ideal" or "modeled", as described below. "Ideal" view of a diode + The "ideal" diode is either a short circuit or an open circuit. Specifically, when the voltage across its terminals is negative, no current flows, and when current flows, there is zero voltage across its terminals, as pictured below: Diode "Modeled" view of a diode +51 Diode V Ideal Diode "Off" i=0| + U≤0 + I Therefore, with current i and voltage v defined as shown on the left above, for an "ideal" diode: • Current i cannot be negative. Voltage v cannot be positive. . The diode cannot absorb or deliver power. NOTE: The first two statements will change if the current arrow and/or voltage polarity change. Ideal Diode "On" i> 0 For a more realistic view of a diode, we replace the short when "on" with a small independent voltage source. When (positive) current is flowing in the direction of the triangle, the diode behaves like a 0.7V source. (Other values of the voltage are possible, but 0.7V is a particularly common value.) When the voltage is less than 0.7V, the diode is "off" and no current flows, as pictured below: Modeled Diode "Off" + v=0 Modeled Diode "On" i=0| + IZETTE V < 0.7V i> 0 + V = 0.7V Therefore, again with current i and voltage v defined as shown on the left above, for a "modeled" diode: • Current i cannot be negative. • Voltage v cannot be greater than 0.7V. (It can be negative.) • When "off", the modeled diode absorbs no power. When "on", the modeled diode necessarily absorbs positive power. NOTE: The first two statements will change if the current arrow and/or voltage polarity change.
Transcribed Image Text:A diode is a two-terminal, electronic device made using semiconductors that is designed to prevent current from flowing in a particular direction. The symbol is a triangle pointing in the direction that (positive) current is allowed to flow and a wall preventing (positive) current from flowing in the opposite direction: 1: A diode has two modes, "on" and "off". When "on", current flows, and when "off", no current flows. We generally view diodes as either "ideal" or "modeled", as described below. "Ideal" view of a diode + The "ideal" diode is either a short circuit or an open circuit. Specifically, when the voltage across its terminals is negative, no current flows, and when current flows, there is zero voltage across its terminals, as pictured below: Diode "Modeled" view of a diode +51 Diode V Ideal Diode "Off" i=0| + U≤0 + I Therefore, with current i and voltage v defined as shown on the left above, for an "ideal" diode: • Current i cannot be negative. Voltage v cannot be positive. . The diode cannot absorb or deliver power. NOTE: The first two statements will change if the current arrow and/or voltage polarity change. Ideal Diode "On" i> 0 For a more realistic view of a diode, we replace the short when "on" with a small independent voltage source. When (positive) current is flowing in the direction of the triangle, the diode behaves like a 0.7V source. (Other values of the voltage are possible, but 0.7V is a particularly common value.) When the voltage is less than 0.7V, the diode is "off" and no current flows, as pictured below: Modeled Diode "Off" + v=0 Modeled Diode "On" i=0| + IZETTE V < 0.7V i> 0 + V = 0.7V Therefore, again with current i and voltage v defined as shown on the left above, for a "modeled" diode: • Current i cannot be negative. • Voltage v cannot be greater than 0.7V. (It can be negative.) • When "off", the modeled diode absorbs no power. When "on", the modeled diode necessarily absorbs positive power. NOTE: The first two statements will change if the current arrow and/or voltage polarity change.
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