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ECE 4007 L3 LEVITATING LED LIGHT10/20/2010

Levitating LED Light. ECE 4007 ∙ L03/04 December 9, 2010. Andy Givens Inga Shvartsman Tres Kimball Shruti Batra Chris Melton. ECE 4007 L3 LEVITATING LED LIGHT10/20/2010. Project Overview. Levitation Coil Power Transfer Antenna Illuminate 6 LEDs.

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ECE 4007 L3 LEVITATING LED LIGHT10/20/2010

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  1. Levitating LED Light ECE 4007 ∙ L03/04 December 9, 2010 Andy Givens Inga Shvartsman Tres Kimball Shruti Batra Chris Melton ECE 4007 L3 LEVITATING LED LIGHT10/20/2010

  2. Project Overview • Levitation Coil • Power Transfer Antenna • Illuminate 6 LEDs ECE 4007 L3 LEVITATING LED LIGHT10/20/2010 1

  3. Motivation • Teaching Tool • Household Illumination • Price : $120 • Market Competition: Levitating Globe ECE 4007 L3 LEVITATING LED LIGHT10/20/2010 1 3

  4. Design Objectives ECE 4007 L3 LEVITATING LED LIGHT10/20/2010 1 4

  5. High Level Block Diagram ECE 4007 L3 LEVITATING LED LIGHT10/20/2010 1 5

  6. Wireless Power ECE 4007 L3 LEVITATING LED LIGHT10/20/2010 1 6

  7. Signal Generation ECE 4007 L3 LEVITATING LED LIGHT10/20/2010

  8. Signal Generation ECE 4007 L3 LEVITATING LED LIGHT10/20/2010

  9. Signal Generation ECE 4007 L3 LEVITATING LED LIGHT10/20/2010

  10. Antenna Response • Link Coils • Tune Circuit • Increase • Turns • B-Field • Resistance • Receiver Weight ECE 4007 L3 LEVITATING LED LIGHT10/20/2010 1 10

  11. Coil Design • Wire Size: • Number of Turns • Weight • Resistance • Core Increases Levitation Distance • Coil Wrapping = Time Consuming • Smaller Wire -> More Turns -> Heat Generation ECE 4007 L3 LEVITATING LED LIGHT10/20/2010

  12. Control Circuit 1 ECE 4007 L3 LEVITATING LED LIGHT10/20/2010

  13. Control Circuit ECE 4007 L3 LEVITATING LED LIGHT10/20/2010

  14. Control Circuit ECE 4007 L3 LEVITATING LED LIGHT10/20/2010

  15. Control Circuit ECE 4007 L3 LEVITATING LED LIGHT10/20/2010

  16. Control Circuit ECE 4007 L3 LEVITATING LED LIGHT10/20/2010

  17. Control Circuit ECE 4007 L3 LEVITATING LED LIGHT10/20/2010

  18. Control Circuit ECE 4007 L3 LEVITATING LED LIGHT10/20/2010

  19. Control Circuit ECE 4007 L3 LEVITATING LED LIGHT10/20/2010

  20. Control Circuit ECE 4007 L3 LEVITATING LED LIGHT10/20/2010

  21. Putting It All Together • Incompatible Levitation and Power Circuits • Previously Destabilized Stable System • Corrupted Sensor Outputs • Solution: 10 Hz Low Pass Filters and Buffers ECE 4007 L3 LEVITATING LED LIGHT10/20/2010 1 21

  22. Audio Circuit Objectives • Create Chebyshev Filter • Filter iPod Output Signal • Control Signal for Vertical Displacement Problems • Presence of Large Noise Voltage • Inability to Decipher Kick Drum • Mixer Necessary • Instability Due to Bouncing ECE 4007 L3 LEVITATING LED LIGHT10/20/2010 1 22

  23. Challenges Oscillator -Transistor Shorting -Solution Under Voltage Lockout Bouncing -Extracting Kick Drum from Audio Signal Orb -Weight -Balancing ECE 4007 L3 LEVITATING LED LIGHT10/20/2010 1 23

  24. Challenges Hall Effect Sensors • Temperature Sensitive • Inconsistent Responses • F=m*a • Grounding ECE 4007 L3 LEVITATING LED LIGHT10/20/2010 1 24

  25. Challenges Control Circuit • Designed Around HE Sensors • Transistor Overheating • Stability ECE 4007 L3 LEVITATING LED LIGHT10/20/2010 1 25

  26. Cost Analysis ECE 4007 L3 LEVITATING LED LIGHT10/20/2010 1 26

  27. Future Work • FCC Constraints • Safeguards • Power Optimization • PCB Design • Vertical Oscillation to Music ECE 4007 L3 LEVITATING LED LIGHT10/20/2010

  28. Questions? ECE 4007 L3 LEVITATING LED LIGHT10/20/2010 1 28

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