1 / 9

ECE 11 Final Project: Boom Box Design and Implementation

ECE 11 Final Project: Boom Box Design and Implementation. By Scott Trocchia ECE 11 Fall 2008 Professor Korman, GTA Yi Jin Presented on 12/16/08. Definition: break large project (seemingly complicated and daunting task) into its constituents (piece by piece)

claire-lamb
Download Presentation

ECE 11 Final Project: Boom Box Design and Implementation

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. ECE 11 Final Project: Boom Box Design and Implementation By Scott Trocchia ECE 11 Fall 2008 Professor Korman, GTA Yi Jin Presented on 12/16/08

  2. Definition: break large project (seemingly complicated and daunting task) into its constituents (piece by piece) • The following slides will explain the circuit through this concept The Approach: Divide and Conquer

  3. 1st order • Inverting design • Establish unity gain • Simple illustration of phasor usage • Eliminates all noise above 10 kHz Stage [1] : Initial Low Pass Filter

  4. Treble channel 2nd order high pass filter • Reason for order? • Unity gain • Frequency range of interest: 5360 Hz to 10 kHz Stage [2a]: Decision to make - Treble or Bass?

  5. Bass channel 2nd order low pass filter • R  C, C  R • Unity gain, again • Frequency range of interest: 150 Hz to 7360 Hz Stage [2b]: Decision to make - Treble or Bass?

  6. Same for treble and bass channels • C6 and R8 together represent passive low pass filter • Attenuates all frequency <150 Hz • C7 makes sure AC voltage passes to speaker Stage [3]: Output Stage

  7. Concept of voltage ladder (+,- polarity) • Initial resistor  highest voltage drop • Personal preference and guess and check • LED resistor? Treble’s Voltage Ladder

  8. Concept of voltage ladder (+,- polarity) • Personal preference, again • LED resistor and why we need it Bass’s Voltage Ladder

  9. Troubleshooting • Parts • Time issue? • Lessons learned and applications Troubleshooting / Problems / Resolutions

More Related