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Wireless Power Transmission and Near Field Communication. 國立台北科技 大學 電子工程系 林丁 丙 教授. Outline. Introduction Wireless Power Transmission (WPT) Near Field Communication (NFC) Wireless Power Transmission Literature Review Proposed Design and Parametric Analysis Near Field Communication

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Wireless Power Transmission and Near Field Communication


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    1. Wireless Power TransmissionandNear Field Communication 國立台北科技大學 電子工程系 林丁丙 教授

    2. Outline • Introduction • Wireless Power Transmission (WPT) • Near Field Communication (NFC) • Wireless Power Transmission • Literature Review • Proposed Design and Parametric Analysis • Near Field Communication • Literature Review • Proposed Design and Theoretical Analysis • Conclusions

    3. Outline • Introduction • Wireless Power Transmission (WPT) • Near Field Communication (NFC) • Wireless Power Transmission • Literature Review • Proposed Design and Parametric Analysis • Near Field Communication • Literature Review • Proposed Design and Theoretical Analysis • Conclusion

    4. Why Transmit Power by Wireless Instead of Wire? • Advantages of WPT • Safety • Flexibility • Reliability • Operation Frequency • 100~200 KHz (Short distance) • 6.28 MHzand 13.56 MHz (Middle distance) • 0.3~ 300 GHz (Long distance)

    5. WPT forShort Distance (1/2) Operation Frequency:100~200 KHz Transmission Distance:Less than 5 cm Faraday’s law IS IP:Primary current IS:Secondary current H:Magnetic Field IP Equivalent Circuit Schematic Diagram

    6. WPT forShort Distance (2/2) Name of Organization:Wireless Power Consortium Operation Frequency:100~200 KHz Output Power:5 ~ 15 W Charging Methods:Magnetic Field Coupling Fixed Position Free Position Free Position (Moving Coil) (Array Coil)

    7. Application of WPT for Short Distance Samsung Galaxy S4 Nokia Lumia 920 Nexus 4

    8. WPT forMiddle Distance(1/2) Name of Organization:NFC Forum Operation Frequency:13.56 MHz Output Power:Less than 5 W Charging Methods:Magnetic Field Coupling Transmission Distance:Less than 50 cm NFC Antenna Schematic Diagram NFC Antenna of New HTCOne

    9. WPT forMiddle Distance(2/2) Name of Organization:Alliance for Wireless Power Operation Frequency:13.56 MHz、6.28 MHz Output Power:20~50 W Charging Methods:Magnetic Resonance Transmission Distance:Less than 2 M Current Magnetic Field Schematic Diagram Equivalent Circuit

    10. Application of WPT for Middle Distance NFC Nokia Lumia 920 Sony Z1 Speaker Phone Phone Camera Lens NFC

    11. WPT forLong distance Operation Frequency:0.3~ 300 GHz Output Power: Less than 0.5 W Charging Methods:Microwave Transmission Distance:More than 2 M Schematic Diagram of Microwave Wireless Power Transmission

    12. Outline • Introduction • Wireless Power Transmission (WPT) • Near Field Communication (NFC) • Wireless Power Transmission • Literature Review • Proposed Design and Parametric Analysis • Near Field Communication • Literature Review • Proposed Design and Theoretical Analysis • Conclusion

    13. Efficiency Calculation for WPT Conversion Efficiency CE: Conversion Efficiency Total Transmission Efficiency

    14. Block Diagram for Rectenna Proposed Rectenna in currently research Za Zd Za = Zd for maximum power transfer Pi Po For IL = 0.48 dB Po = 0.89 x Pi

    15. Literature Review for WPT (1/2) The new dual-diode rectenna can provide at least twice the dc output voltage than the traditional one

    16. Literature Review for WPT (2/2) Additional matching network is needed for better power transformation 3rd harmonic rejection filter will cause the additional loss Matching Network

    17. Proposed DCP Rectenna(1/3) Proposed dual circularly polarized rectenna with high-order harmonic rejection property From View Bottom View Side View