HW4 - ECE 2100 Homework 4 Professor Alyssa Apsel Subjects...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
ECE 2100 Homework 4 Professor Alyssa Apsel Subjects: Sinusoidal steady-state analysis, phasors, complex impedance, complex circuit analysis, AC power transfer, transformers, mutual inductance. 1) Prelab: Looking at the overlaid input/output sinewaves below, extract: -2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 0 0.2 0.4 0.6 0.8 1 1.2 time, microseconds Voltage Input Output a. The frequency in Hz. b. The frequency in radians per second. c. The change in amplitude between input and output (that is the ratio of output to input amplitudes) d. The change in phase between input and output (Remember that time delay corresponds to negative phase) e. Write the transformation from input to output as a phasor, and as a complex number. That is, Vout = (A+jB)Vin. What are A and B? 2) Prelab: You will be analyzing the impedance and voltage-division characteristics of a several “black box” circuits in lab. Several example circuits are given below. In each case analyze the impedance across each pair of terminals (a complex number, as a function of ω), and in particular analyze Z for f=0Hz. Also use voltage divider analysis to find the phase and amplitude of V 2 for V 1 =1V·cos(2πft), as a function of f, and find it explicitly for f=1kHz and 100kHz. Also, find the frequency (in the range from 1kHz to 100kHz) at which the amplitude of V 2 is maximized. Perform the same analyses for V 1 when V 2 =1V·cos(2πft).
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
a. Pure resistors: analyze the circuit in Fig. 2a i. What are Zac, Zbc and Zab? What are they at f=0Hz? ii.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 10/25/2011 for the course ECE 2100 taught by Professor Kelley/seyler during the Spring '05 term at Cornell.

Page1 / 6

HW4 - ECE 2100 Homework 4 Professor Alyssa Apsel Subjects...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online