IEC 63563-2:2025

Qi Specification version 2.0 - Part 2: Glossary

IEC 63563-2:2025 provides glossary of definitions, acronyms, and symbols for the the Qi Specification, which applies to flat surface devices such as mobile phones and tablets that use up to 15 W of power

General Information

• Status: Published
• Publication Date: 09-Feb-2025
• ICS: 29.240.99 - Other equipment related to power transmission and distribution networks
• ICS: 35.240.99 - IT applications in other fields
• Technical Committee: TA 15 - Wireless Power Transfer
• Drafting Committee: WG 1 - TC 100/TA 15/WG 1
• Current Stage: PRVD - Preparation of RVD
• Start Date: 17-Jan-2025
• Due Date: 17-Jan-2025
• Completion Date: 17-Jan-2025

Standards Content (Sample)

IEC 63563-2 ®
Edition 1.0 2025-02
INTERNATIONAL
STANDARD
Qi Specification version 2.0 –
Part 2: Glossary
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IEC 63563-2 ®
Edition 1.0 2025-02
INTERNATIONAL
STANDARD
Qi Specification version 2.0 –

Part 2: Glossary
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.240.99; 35.240.99 ISBN 978-2-8327-0185-0

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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
QI SPECIFICATION VERSION 2.0 –
Part 2: Glossary
FOREWORD
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IEC 635-2 has been prepared by technical area 15: Wireless Power Transfer, of IEC
technical committee 100: Audio, video and multimedia systems and equipment. It is an
International Standard.
It is based on Qi Specification version 2.0, Glossary and was submitted as a Fast-Track
document.
The text of this International Standard is based on the following documents:
Draft Report on voting
//FDIS //RVD
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Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
The structure and editorial rules used in this publication reflect the practice of the organization
which submitted it.
This document was developed in accordance with ISO/IEC Directives, Part 1 and ISO/IEC
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specific document. At this date, the document will be
x reconfirmed,
x withdrawn, or
x revised.
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WIRELESS POWER
CONSORTIUM
Qi Specification
Glossary
Definitions, Acronyms, and Symbols
Version 2.0
April 2023
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DISCLAIMER
Theinformationcontainedhereinisbelievedtobeaccurateasofthedateofpublication,
butisprovided“asis”andmaycontainerrors.TheWirelessPowerConsortiummakesno
warranty,expressorimplied,withrespecttothisdocumentanditscontents,includingany
warrantyoftitle,ownership,merchantability,orfitnessforaparticularuseorpurpose.
NeithertheWirelessPowerConsortium,noranymemberoftheWirelessPower
Consortiumwillbeliableforerrorsinthisdocumentorforanydamages,includingindirect
orconsequential,fromuseoforrelianceontheaccuracyofthisdocument.For any further
explanation of the contents of this document, or in case of any perceived inconsistency or ambiguity
of interpretation, contact: [e-mail].
RELEASE HISTORY
Specification Version Release Date Description
2.0 April 2023 Initial release of the v2.0 Qi Specification.

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Table of Contents
1  Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2  Acronyms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3  Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

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1 Definitions
ActiveArea: The part of the Interface Surface of a Power Transmitter Product or
Power Receiver Product through which a sufficiently high magnetic flux
penetrates when the Power Transmitter Product is providing power to
the Power Receiver Product.
AirGap: The distance between the top surface of a Power Transmitter Product
and the bottom surface of a Power Receiver Product.
NOTE: The Air Gap also comprises any additional spacing between a Power
Transmitter Product and a Power Receiver Product introduced by accessories
added by a user to either product.
AnalogPing: A short-duration Power Signal applied by a Power Transmitter with the
purpose of detecting the presence of an object, without waking up a
Power Receiver.
Authentication: A tamper-resistant process of a Power Receiver verifying the identity of a
Power Transmitter.
BaselinePowerProfile:A supported Power Profile.
BaselineProtocol: The communications protocol introduced in version 1.0 of the
QiSpecification.
Certificate: A digital form of identification that provides information about a
Certificate Authority, a manufacturer, or a Power Transmitter Product
Unit, and certifies ownership of a public key.
CertificateAuthority: An organization that issues Certificates.
CertificateChain: A series of two or more Certificates where each Certificate is signed by
the owner of the preceding Certificate in the chain.
CommunicationsandControlUnit:
The functional part of a Power Transmitter or Power Receiver that
controls the power transfer.
ControlPoint: The combination of voltage and current provided at the output of the
Power Receiver, and other parameters that are specific to a particular
Power Receiver implementation.
DataStreamInitiator: A Power Transmitter or Power Receiver that can open a data transport
stream.
DataStreamResponder:
A Power Transmitter or Power Receiver that can accept a data transport
stream.
DetectionUnit: The functional part of a Power Transmitter that detects the presence of a
Power Receiver on the Interface Surface.
DigitalPing: A Power Signal applied by a Power Transmitter with the purpose to
wake up a Power Receiver.
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EvaluationAssuranceLevel:
A numerical rating describing the depth and rigor of a security
evaluation.
ExtendedProtocol: The communications protocol introduced in version 1.2 and enhanced in
later versions of the QiSpecification.
ExtendedPowerProfile:A supported Power Profile.
ForeignObject: An object that is neither part of a Power Transmitter Product nor of a
Power Receiver Product and that can generate heat when exposed to a
Power Signal.
ForeignObjectDetection:
A process used by a Power Transmitter and Power Receiver to determine
whether a Foreign Object is present in the Operating Volume and can
generate heat beyond safe limits.
FriendlyMetal: An integral part of a Power Receiver Product or a Power Transmitter
Product that can unintentionally generate heat when exposed to a Power
Signal.
GuaranteedLoadPower:
A Load Power level agreed between the Power Receiver and the Power
Transmitter.
InterfaceSurface: The flat part of the surface of a Power Transmitter Product that is closest
to the Primary Coil(s).
IntermediateCertificate:
A Certificate that is positioned in a Certificate Chain between the Root
Certificate and the Leaf Certificate.
Issuer: A Certificate-providing entity such as the WPC CA or a Manufacturer CA.
LeafCertificate: The last Certificate in a Certificate Chain.
Load: A subsystem that can draw power from a Power Receiver.
LoadPower: The power dissipated in the Load.
ManufacturerCACertificate:
A Certificate that describes a manufacturer. It is signed by the Certificate
Authority and is used as an Intermediate Certificate.
ManufacturerCode: A 16-bit number that identifies the manufacturer of the Power
Transmitter or Power Receiver. This number is also referred to as the
Power Transmitter Manufacturer Code (PTMC) or the Power Receiver
Manufacturer Code (PRMC).
Nonce: A number used only once in any given context of the Authentication
protocol.
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OperatingPoint: The combination of the frequency, duty cycle, and amplitude of the
voltage that is applied to the Primary Cell.
OperatingVolume: The set of Power Receiver spatial positions at which the Power
Transmitter can sustain a power transfer.
NOTE: The Operating Volume varies with the Power Receiver design as well as
with the power level.
Policy: A set of rules defining the behavior of a Power Receiver depending on the
outcome of Authentication.
PotentialLoad
...