rc oscillator.doc - Addis Ababa University Faculty of Technology Department of Electrical Computer Engineering Laboratory Report Course No ECEG

rc oscillator.doc - Addis Ababa University Faculty of...

This preview shows page 1 - 3 out of 8 pages.

Addis Ababa University Faculty of Technology Department of Electrical & Computer Engineering Laboratory Report Course No. ECEG - Experiment No-4 Title: RC – Oscillators By: S irack Hailu Group: 10 Date of Experiment: May 22 , 2009 Date of Submission: May 29, 2009
Image of page 1
1. Introduction This session of lab will discuss the ideas behind RC – Oscillators. 2. Materials used Equipments Used No Description Code/Lab Reference Quantity 1 Function Generator 1 2 Oscilloscope 1 3 DC Source 1 Components Used No Description Type Quantity 1 IC (op-amp) 741 1 2 Resistor 3.9K,56K - 3 Capacitor 10 ηF 2 3. Theory 3. 1 Phase shift Oscillator An example of an oscillator circuit that follows the basic development of a feedback circuit is the phase-shift oscillator. An idealized version of this circuit is below. The requirements for oscillation are that the loop gain, B A , is greater than unity and that the phase shift around the feedback network is 180° (providing positive feedback). In the present idealization, we are considering the feedback network to be driven by a perfect
Image of page 2
Image of page 3

You've reached the end of your free preview.

Want to read all 8 pages?

  • Winter '17

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Stuck? We have tutors online 24/7 who can help you get unstuck.
A+ icon
Ask Expert Tutors You can ask You can ask ( soon) You can ask (will expire )
Answers in as fast as 15 minutes
A+ icon
Ask Expert Tutors