1 / 28

Class-D Garage Band Amplifier

Class-D Garage Band Amplifier. Team: Aaron Danielson, Robert Mann, Randall Newcomb, Andrew Russell Sponsor: Nigel Thompson, RT Logic Advisor: Dr. William Harrison. Overview. Purpose of the Class-D Garage Band Amplifier Versus Commercial Products System Concept System Block Diagram

errin
Télécharger la présentation

Class-D Garage Band Amplifier

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. Class-D Garage Band Amplifier Team: Aaron Danielson, Robert Mann, Randall Newcomb, Andrew Russell Sponsor: Nigel Thompson, RT Logic Advisor: Dr. William Harrison

  2. Overview • Purpose of the Class-D Garage Band Amplifier • Versus Commercial Products • System Concept • System Block Diagram • Major Tasks • Stretch Goals • Digital Signal Processor • Budget Overview • Project Schedule

  3. Purpose • Class D Amplifier Power Efficiency • Price Point • Customizability • Open Source

  4. To Compete withCommercial Products

  5. System Concept

  6. FPGA Block Diagram

  7. System Block Diagram - Output

  8. Major Tasks - FPGA • Top Level Wrapper - Randy • Contains all the modules for testing that will be synthesized onto the FPGA. • Digital Signal Processor - Aaron • Design 4 filters – two each for bass & treble. • Interface with menu HSM to allow user to adjust settings. • Hardware State Machine - Rob • Implement a menu to control all the systems (LCD, ADC, DAC, DSP, SIGGEN, USER INPUT)

  9. Major Tasks – Output Stage • Amplifier Output Stage - Andrew • Order and solder breakout boards • Surface mount pin packages (64 pin) • Used for initial testing of components • Layout custom PCB • 4 layer for power handling capability • Implement final design and test the output stage

  10. Stretch Goals • An all digital amplifier will be implemented • No analog signals between input and speaker out • Add sound effects to the DSP • Echo • Reverb • Vacuum tube emulation • Speaker Enclosure • Build the enclosure • Design bandpass filters for the selected speaker

  11. Digital Signal Processor

  12. Design Choices forControlling Logic

  13. Design Choices for DSP

  14. Will Design MeetRequirements?

  15. Printed Circuit Board (PCB) • 4 Layer PCB • Gives full ground and power planes • Necessary for high power circuits • Qualities/Needs outweigh the cost Signal Ground Power 12V 50V Signal

  16. PCB Ground • Analog and Digital GND

  17. PCB Power • Split Planes • Half-Bridge Power (+50V) • Regulators, Other Circuitry (+12V)

  18. Noise • PWM amplifier switching • Analog and Digital ground shorted • Crosstalk • Power Supply • How to deal with it • Decoupling Capacitors • Maximize distance between traces • Proper component selection

  19. Budget

  20. Budget

  21. Project Schedule

  22. Conclusion • Minimal Cost Versus Commercial Products • Design Implementation • Stretch Goals if Time Permits • Budget Situation • Task Scheduling and Project Progress

  23. APPENDIX

  24. Menu HSM

  25. SPI

  26. DSP

  27. Signed/Unsigned Issue

  28. Title

More Related