RADIATIVE WIRELESS POWER TRANSFER Driven by Nanoelectronics Innovation
RADIATIVE WIRELESS POWER TRANSFER driven by nanoelectronics innovation Peter Lemmens – General Manager imec (Taiwan) CONFIDENTIAL 1. ENERGY HARVESTING Movement 1831 Faraday dynamo WWII Philips dyno torch Modern dyno torch Piezoelectricity 1880 Curie discovery of RPG7 fuse Enocean wireless switch piezoelectricity Temperature 1821 Seebeck experiment 1948 USSR oil lamp powered radio 1977 Voyager 2 Radioisotope Thermoelectric Generator Light 1839 Becquerel experiment 1954 Bell Labs PV Modern PV CONFIDENTIAL 1. ENERGY HARVESTING Source Available Power Density Typical Harvested Power Density Ambient Light Indoor 0.1 mW/cm2 10 W/cm2 Outdoor 100 mW/cm2 10 mW/cm2 Vibration/Motion Human 0.5 m at 1 Hz 4 W/cm2 1 m/s2 at 50 Hz Industrial 1 m at 5 Hz 100 W/cm2 10 m/s2 at 1 kHz Thermal Human 20 mW/cm2 30 W/cm2 Industrial 100 mW/cm2 1-10 mW/cm2 RF GSM Base Station 0.3 W/cm2 0.1 W/cm2 CONFIDENTIAL 2. WIRELESS POWER TRANSFER (WPT) (Non-Radiative) Near-Field Power Transfer 1961 2007 General Electric Kurs et al., Science Inductively charged toothbrush Wireless Power Transfer via Strongly Coupled Magnetic Resonances (Radiative) Far-Field Power Transfer 1901 1931 Nikola Tesla Westinghouse Idea to wirelessly Wirelessly powering a transfer energy lightbulb at 5m, 15kW CONFIDENTIAL 3. (NON-RADIATIVE) NEAR-FIELD POWER TRANSFER loss R R s r + High power + High efficiency V L + Standard s s Lr RL Cs Cr - Short distance RF source Rectification and - Standard Transmit coil Ls power resonated with Cs management Receive coil Lr resonated with Cr & Asus, Blackberry, Broadcom, Dell, Fairchild, Freescale, Hama, Hitachi, HTC, Acer, Asus, AT&T, Broadcom, Canon, Deutsche Telekom, Dialog, Fairchild, Huawei, IKEA, Keysight, LG, Microsoft, Motorola, Nokia, NXP, Omron, Fujitsu, HP, Hitachi, HTC, Intel, Keysight, Lenovo, LG, Microsoft, Motorola, Panasonic, Philips, Powercast, Qualcomm, Ricoh, Samsung, Sony, TDK, TI, Nordic, NXP, Omron, Panasonic, P&G, Qualcomm, Renesas, Rohm, Toshiba, Toyota, and others Samsung, Starbucks, Sandisk, Sharp, Sony, ST, TDK, TI, Toshiba, Witricity, and others CONFIDENTIAL 4.
[Show full text]