CEA-2042 1-A-2012 Wireless Power Glossary of Terms.pdf
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1、 CEA Standard Wireless Power Glossary of Terms CEA-2042.1-A June 2012 Copyright Consumer Electronics Association Provided by IHS under license with CEA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-NOTICE Consumer Electronics Association (CEA) Standards, Bulletin
2、s and other technical publications are designed to serve the public interest through eliminating misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper p
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4、xistence of such Standards, Bulletins and other technical publications preclude their voluntary use by those other than CEA members, whether the standard is to be used either domestically or internationally. Standards, Bulletins and other technical publications are adopted by CEA in accordance with
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6、afety problems associated with its use or all applicable regulatory requirements. It is the responsibility of the user of this document to establish appropriate safety and health practices and to determine the applicability of regulatory limitations before its use. This document is copyrighted by th
7、e Consumer Electronics Association (CEA) and may not be reproduced, in whole or part, without written permission. Federal copyright law prohibits unauthorized reproduction of this document by any means. Organizations may obtain permission to reproduce a limited number of copies by entering into a li
8、cense agreement. Requests to reproduce text, data, charts, figures or other material should be made to CEA. (Formulated under the cognizance of the CEA R6.3 Wireless Power Subcommittee.) Published by CONSUMER ELECTRONICS ASSOCIATION 2012 Technology & Standards Department www.CE.org All rights reserv
9、ed Copyright Consumer Electronics Association Provided by IHS under license with CEA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-i FOREWORD This document was developed by the Consumer Electronics Association (CEA) R6.3, Wireless Power Subcommittee. Copyright Co
10、nsumer Electronics Association Provided by IHS under license with CEA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ii This page is intentionally blank.Copyright Consumer Electronics Association Provided by IHS under license with CEA Not for ResaleNo reproduction
11、 or networking permitted without license from IHS-,-,-iii CONTENTS 1 Scope. 1 2 Terms & Definitions . 1 Copyright Consumer Electronics Association Provided by IHS under license with CEA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-iv This page is intentionally b
12、lank. Copyright Consumer Electronics Association Provided by IHS under license with CEA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-1 Wireless Power Glossary of Terms 1 Scope This document specifies terms and definitions for wireless power. 2 Terms & Definition
13、s Term Definition Alignment Aid A method of positioning a receiver relative to a transmitter that provides the user with feedback to properly align the active area of the receiver to the active area of the transmitter. Authentication The process of validating that a proper receiver has been placed w
14、ithin proximity before power is transmitted. Without a proper validation, power should not be transmitted. Battery Management System (BMS) A system of circuits (may be integrated with a battery into a “battery pack”) to monitor key operational parameters of a battery during charging and discharging,
15、 e.g. voltages, currents, internal temperature of the battery, ambient temperature. The monitoring circuits may provide inputs to protection devices which would generate alarms or disconnect the battery from the load or charger should any of the parameters become out of limits. Charging Region The a
16、rea from where power is made available to receivers. (e.g., a charging pad is one example of a charging region) Communication Protocol A formal description of digital message formats and the rules a receiver and a transmitter follow for exchanging those messages for wireless power transfer. This may
17、 include signaling, compliance verification and error detection/correction capabilities and may also be implemented in hardware, software or both. Conductive Wireless Power Systems These systems allow wire-free power delivery. A wireless power system that provides a conductive surface to which recei
18、vers are connected through direct electrical contacts. Coupling Coefficient (k) K = M / SQRT(L1 L2) Where M is the Mutual Inductance, and L1 and L2 are the inductance of first and second coil, respectively Device Detection The process by which a transmitter identifies that a receiver is within proxi
19、mity of the transmitter. Electromagnetic The properties of interdependent, time-varying electric and magnetic fields. Electromagnetic Induction (aka Magnetic Induction) The production of a current within, and transfer of, voltage across a conductor moving through a magnetic field or, alternatively,
20、a magnetic field moving through a conductor without wires or metal contacts. Copyright Consumer Electronics Association Provided by IHS under license with CEA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-2 Electrostatic Induction The redistribution of electrical
21、 charge through the use or presence of external charges. Uncharged matter becomes charged through the placement of a strong electrically charged object, attracting the opposite electrical charges within the uncharged matter and polarizing the uncharged matter. Far Field Distances greater than two wa
22、velengths from transmitter to receiver. Field Transition Zone In a power transition this is the range between one and two wavelengths from the transmitter to the receiver (range between Near Field and Far Field). Free Positioning The ability to place a receiver in any position relative to the transm
23、itter. Highly Resonant Wireless Power Transfer Wireless transfer of power through magnetic induction between a transmitter coil and receiver coil(s) where the coupling factor (k) can be less than 0.1, though values up to 1 may also be supported and where the system requires magnetic resonance. Induc
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