A diode is an electronic device that let the current flow in only one direction, that is the current through the diode is I=V/R (R is the diode resistance, a constant) if V > 0 and I=0 if V≤0. The diode is excited by an alternative voltage V(t) = cos(wot). (a) Sketch the diode response I(t) as a function of t. Indicate clearly the minimum values +to for which I(t) drops to zero. (b) Calculate the Fourier transform F(w) of the diode response. Hint: because the function is periodic, you only have to calculate the integral between ±to. (c) Schematically plot F(w) versus w. (d) A Lock-in amplifier is an electronic setup that can measure the response at integer frequency of the excitation frequency. What would a Lock-in measure at f = 2fo? (wo = 2nfo).
A diode is an electronic device that let the current flow in only one direction, that is the current through the diode is I=V/R (R is the diode resistance, a constant) if V > 0 and I=0 if V≤0. The diode is excited by an alternative voltage V(t) = cos(wot). (a) Sketch the diode response I(t) as a function of t. Indicate clearly the minimum values +to for which I(t) drops to zero. (b) Calculate the Fourier transform F(w) of the diode response. Hint: because the function is periodic, you only have to calculate the integral between ±to. (c) Schematically plot F(w) versus w. (d) A Lock-in amplifier is an electronic setup that can measure the response at integer frequency of the excitation frequency. What would a Lock-in measure at f = 2fo? (wo = 2nfo).
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
Related questions
Question
Transcribed Image Text:A diode is an electronic device that let the current flow in only one direction, that is the current
through the diode is I=V/R (R is the diode resistance, a constant) if V > 0 and I=0 if V≤0. The
diode is excited by an alternative voltage V(t) = cos(wot).
(a) Sketch the diode response I(t) as a function of t. Indicate clearly the minimum values +to
for which I(t) drops to zero.
(b) Calculate the Fourier transform F(w) of the diode response. Hint: because the function is
periodic, you only have to calculate the integral between ±to.
(c) Schematically plot F(w) versus w.
(d) A Lock-in amplifier is an electronic setup that can measure the response at integer
frequency of the excitation frequency. What would a Lock-in measure at f = 2fo?
(wo = 2nfo).
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps
Recommended textbooks for you
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:
9780321820464
Author:
Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:
Addison-Wesley
College Physics: A Strategic Approach (4th Editio…
Physics
ISBN:
9780134609034
Author:
Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:
PEARSON