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1. (WO2012145327) WIRELESS POWER TRANSMITTER TUNING
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2012/145327 International Application No.: PCT/US2012/033956
Publication Date: 26.10.2012 International Filing Date: 17.04.2012
Chapter 2 Demand Filed: 14.02.2013
IPC:
H04B 5/00 (2006.01) ,H02J 5/00 (2006.01) ,H02J 17/00 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
5
Near-field transmission systems, e.g. inductive loop type
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
J
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
5
Circuit arrangements for transfer of electric power between ac networks and dc networks
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
J
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
17
Systems for supplying or distributing electric power by electromagnetic waves
Applicants:
QUALCOMM INCORPORATED [US/US]; 5775 Morehouse Drive San Diego, California 92121, US (AllExceptUS)
LOW, Zhen Ning [SG/US]; US (UsOnly)
WHEATLEY III, Charles Edward [US/US]; US (UsOnly)
KASTURI, Sreenivas [IN/US]; US (UsOnly)
Inventors:
LOW, Zhen Ning; US
WHEATLEY III, Charles Edward; US
KASTURI, Sreenivas; US
Agent:
ABUMERI, Mark M.; Knobbe Martens Olson & Bear LLP 2040 Main Street, Fourteenth Floor Irvine, California 92614, US
Priority Data:
13/399,29217.02.2012US
61/477,10919.04.2011US
Title (EN) WIRELESS POWER TRANSMITTER TUNING
(FR) RÉGLAGE D'ÉMETTEUR D'ALIMENTATION SANS FIL
Abstract:
(EN) This disclosure provides systems, methods and apparatus for tuning a wireless power transmitter (1404). In one aspect an apparatus (1406) configured to wirelessly provide power to a load is provided. The apparatus (1406) includes a transmit circuit (1450) including a transmit coil (1414). The transmit circuit (1450) is configured to wirelessly provide power to the load. The transmit coil (1414) is configured to resonate at a resonant frequency. The transmit circuit (1450) has a reactance. The apparatus (1406) further includes a detection circuit (1480) configured to detect a change in the resonant frequency while providing power to the load. The apparatus (1406) further includes a tuning circuit (852) configured to adjust the reactance based on the change.
(FR) Cette invention concerne des systèmes, des procédés et des appareils de réglage d'un émetteur d'alimentation sans fil (1404). Selon un aspect, un appareil (1406) configuré pour fournir sans fil de l'énergie à une charge est utilisé. L'appareil (1406) comprend un circuit d'émission (1450) comprenant une bobine d'émission (1414). Le circuit d'émission (1450) est configuré pour fournir sans fil de l'énergie à la charge. La bobine d'émission (1414) est configurée pour résonner à une fréquence de résonance. Le circuit d'émission (1450) possède une réactance. L'appareil (1406) comprend en outre un circuit de détection (1480) configuré pour détecter un changement de la fréquence de résonance pendant la fourniture d'énergie à la charge. L'appareil (1406) comprend en outre un circuit de réglage (852) configuré pour ajuster la réactance sur la base du changement.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP2700176CN103534956JP2014515919KR1020140036188IN8432/CHENP/2013