1 / 6

Announcements

Announcements. Midterm No. 1 Thursday Oct. 6 in class; one 8-1/2 x 11 sheet of notes allowed. No text, no calculator, no operating cell phones; no blue books needed. The next lab will begin on Monday Oct. 10 (RC filters) Be sure to put your discussion section leader’s name on your homework

peers
Download Presentation

Announcements

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Announcements • Midterm No. 1 Thursday Oct. 6 in class; one 8-1/2 x 11 sheet of notes • allowed. No text, no calculator, no operating cell phones; no blue books • needed. • The next lab will begin on Monday Oct. 10 (RC filters) • Be sure to put your discussion section leader’s name on your homework • to facilitate its return to you. • HW 5 is due at 12:00 noon Tuesday Oct. 4 in 42/100 boxes in 240 Cory. • Solutions will be put on top of the boxes at 1 pm that day. • Midterm 1 will not include a problem on 2nd-order transients. • Prof. Fearing will conduct a review session in class Tuesday Oct. 4. • A list of topics covered to date will appear shortly on the web site.

  2. EE 42/100: Running Checklist of Electronics Terms (Midterm 1) 28 Sept. 2005 – Dick White Terms are listed roughly in order of their introduction. Terms in square braces [like this] are for information only.

  3. Linear Time- Invariant Circuit Linear Time- Invariant Circuit Linear Time- Invariant Circuit Linear Time- Invariant Circuit Digital Pulse Source Types of Circuit Excitation Steady-State Excitation OR (DC Steady-State) Sinusoidal (Single- Frequency) Excitation AC Steady-State Transient Excitation Coming Attraction!

  4. Why is Single-Frequency Excitation Important? • Some circuits are driven by a single-frequency sinusoidal source. • Some circuits are driven by sinusoidal sources whose frequency changes slowly over time. • You can express any periodic electrical signal as a sum of single-frequency sinusoids – so you can analyze the response of the (linear, time-invariant) circuit to each individual frequency component and then sum the responses to get the total response. • This is known as Fourier Transform and is tremendously important to all kinds of engineering disciplines!

  5. Representing a Square Wave as a Sum of Sinusoids • Square wave with 1-second period. (b) Fundamental component (dotted) with 1-second period, third-harmonic (solid black) with1/3-second period, and their sum (blue). (c) Sum of first ten components. (d) Spectrum with 20 terms.

More Related