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Power Conditioning

This project focuses on the power conditioning requirements for advanced detection functions, ensuring zero false positives and unauthorized access. The goal is to safely power the Arduino controller and maintain a secure and dependable power source with a long lifespan.

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Power Conditioning

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  1. By Joshua Hamilton Group Members: Steven Paradise, Patrick Schindler, Dr. BehrouzFarhang, Arslan Majid, Chril Miller, David Brown, and Joshua Hamilton Power Conditioning

  2. Reasoning: • Advanced detection functions require power • Zero false positives • No unauthorized access • Cannot be powered externally • Safe must stay secure until maintenance Power Conditioning

  3. Requirements of power source • Necessary 1 year lifespan with a goal of 2 • Cannot be tampered • Power detection sensors • Safely power the Arduino controller • Dependable Power Conditioning

  4. Method • Modes of operation • Wake up sensors • Self powered vibration sensors • Low power design • Efficient overall design • No leakage Power Conditioning Fig. 1 Piezoelectric vibration sensor [4]

  5. Implementation • Arduino Mega vs Arduino Pro-Mini • Piezoelectric wake-up circuit • Choice of battery • Lithium has highest power density • Sensitive to high temperature • May need a controller Power Condtioning

  6. Conclusion • Test two types of batteries • Arduino backpack • Energizer e2 AA batteries Power Condtioning Fig. 2 Arduino backpack [1]

  7. Contact Information: • Joshua Hamilton • ECE Department, University of Utah • Jham111@hotmail.com • Sources: [1] “Lithium Backpack”, Apr. 8, 2010. [Online]. Available: http://www.liquidware.com/shop/show/BP/Lithium+Backpack [2] “E2 Datasheet”, Apr. 8, 2010. [Online]. Available: http://Energizer-L91BP-8-Lithium-Battery-8-Pack/dp/B0000DC4EL [3] “Arduino Pro Mini”, Apr. 8, 2010. [Online]. Available: http://www.sparkfun.com/commerce/product_info.php?products_id=9220 [4] “Vibration Sensor/Switch” ,Apr. 8, 2010. [Online]Available: http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=MSP1007-ND Power Conditioning

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