EN IEC 63563-2:2025
(Main)Qi Specification version 2.0 - Part 2: Glossary
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
Qi Spezifikation Version 2.0 - Teil 2: Glossar
Spécification Qi version 2.0 - Partie 2: Glossaire
Različica specifikacije Qi 2.0 - 2. del: Slovar (Hitri postopek)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2024
Različica specifikacije Qi 2.0 - 2. del: Slovar (Hitri postopek)
Qi Specification version 2.0 - Part 2: Glossary (Fast track)
Ta slovenski standard je istoveten z: prEN IEC 63563-2:2024
ICS:
29.240.99 Druga oprema v zvezi z Other equipment related to
omrežji za prenos in power transmission and
distribucijo električne energije distribution networks
33.160.99 Druga avdio, video in Other audio, video and
avdiovizuelna oprema audiovisual equipment
35.200 Vmesniška in povezovalna Interface and interconnection
oprema equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
100/4123/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 63563-2 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2024-05-03 2024-07-26
SUPERSEDES DOCUMENTS:
IEC TA 15 : WIRELESS POWER TRANSFER
SECRETARIAT: SECRETARY:
Korea, Republic of Mr Ockwoo Nam
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
TC 106,TC 108
Other TC/SCs are requested to indicate their interest, if any,
in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they
are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries”
clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for
submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).
TITLE:
Qi Specification version 2.0 - Part 2: Glossary (Fast track)
PROPOSED STABILITY DATE: 2029
NOTE FROM TC/SC OFFICERS:
This document is only in PDF format. IEC and WPC have agreed to use the pdf files as this is an adoption.
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
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WIRELESS POWER
CONSORTIUM
Qi Specification
Glossary
Definitions, Acronyms, and Symbols
Version 2.0
April 2023
COPYRIGHT
© 2023 by the Wireless Power Consortium, Inc. All rights reserved.
The QiSpecification, Glossary, is published by the Wireless Power Consortium and has been
prepared by the members of the Wireless Power Consortium. Reproduction in whole or in part is
prohibited without express and prior written permission of the Wireless Power Consortium.
DISCLAIMER
The information contained herein is believed to be accurate as of the date of publication,
but is provided “as is” and may contain errors. The Wireless Power Consortium makes no
warranty, express or implied, with respect to this document and its contents, including any
warranty of title, ownership, merchantability, or fitness for a particular use or purpose.
Neither the Wireless Power Consortium, nor any member of the Wireless Power
Consortium will be liable for errors in this document or for any damages, including indirect
or consequential, from use of or reliance on the accuracy of this document. For any further
explanation of the contents of this document, or in case of any perceived inconsistency or ambiguity
of interpretation, contact: info@wirelesspowerconsortium.com.
RELEASE HISTORY
Specification Version Release Date Description
2.0 April 2023 Initial release of the v2.0 Qi Specification.
Table of Contents
1 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2 Acronyms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1 Definitions
Active Area: 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.
Air Gap: 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.
Analog Ping: 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.
Baseline Power Profile: A supported Power Profile.
Baseline Protocol: 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.
Certificate Authority: An organization that issues Certificates.
Certificate Chain: A series of two or more Certificates where each Certificate is signed by
the owner of the preceding Certificate in the chain.
Communications and Control Unit:
The functional part of a Power Transmitter or Power Receiver that
controls the power transfer.
Control Point: 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.
Data Stream Initiator: A Power Transmitter or Power Receiver that can open a data transport
stream.
Data Stream Responder:
A Power Transmitter or Power Receiver that can accept a data transport
stream.
Detection Unit: The functional part of a Power Transmitter that detects the presence of a
Power Receiver on the Interface Surface.
Digital Ping: A Power Signal applied by a Power Transmitter with the purpose to
wake up a Power Receiver.
Evaluation Assurance Level:
A numerical rating describing the depth and rigor of a security
evaluation.
Extended Protocol: The communications protocol introduced in version 1.2 and enhanced in
later versions of the QiSpecification.
Extended Power Profile: A supported Power Profile.
Foreign Object: 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.
Foreign Object Detection:
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.
Friendly Metal: An integral part of a Power Receiver Product or a Power Transmitter
Product that can unintentionally generate heat when exposed to a Power
Signal.
Guaranteed Load Power:
A Load Power level agreed between the Power Receiver and the Power
Transmitter.
Interface Surface: The flat part of the surface of a Power Transmitter Product that is closest
to the Primary Coil(s).
Intermediate Certificate:
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.
Leaf Certificate: The last Certificate in a Certificate Chain.
Load: A subsystem that can draw power from a Power Receiver.
Load Power: The power dissipated in the Load.
Manufacturer CA Certificate:
A Certificate that describes a manufacturer. It is signed by the Certificate
Authority and is used as an Intermediate Certificate.
Manufacturer Code: 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.
Operating Point: The combination of the frequency, duty cycle, and amplitude of the
voltage that is applied to the Primary Cell.
Operating Volume: 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.
Potential Load Power: The highest Guaranteed Load Power level the Power Transmitter can
negotiate.
Power Conversion Unit:
The functional part of a Power Transmitter that converts electrical
energy to a Power Signal.
Power Pick-up Unit: The functional part of a Power Receiver that converts a Power Signal to
electrical energy.
Power Profile: A set of features that define a compliance level of a Power Transmitter or
a Power Receiver.
NOTE: The General Section of the books in the QiSpecification lists the defined
Power Profiles.
Power Receiver: A subsystem that can extract electric power from a Power Signal.
Power Receiver Product:
A device containing a Power Receiver.
Power Signal: An alternating magnetic field.
Power Transfer Contract:
A collection of settings and limits governing a power transfer.
Power Transmitter: A subsystem that can generate a Power Signal.
Power Transmitter Product:
A device containing one or more Power Transmitters.
Power Transmitter Product Unit:
A Power Transmitter Product with a unique identity.
Primary Cell: A single Primary Coil or a combination of Primary Coils that are used to
provide a sufficiently high magnetic flux through the Active Area.
Primary Coil: A component of a Power Transmitter that converts electric current to
magnetic flux.
Product Unit Certificate:
A Certificate that describes a Power Transmitter Product Unit. It only
occurs as a Leaf Certificate.
Received Power: The power from the Power Signal dissipated by any component that is
an integral part of the Power Receiver Product.
Reference Quality Factor:
The lowest quality factor of a reference Power Transmitter's tank circuit,
measured with a Power Receiver positioned in the reference Power
Transmitter's Operating Volume at five reference positions.
NOTE: The Reference Quality Factor is a design property of the Power Receiver
and applies with the Power Receiver switched off.
Reference Resonance Frequency:
The highest resonance frequency of a reference Power Transmitter's
tank circuit, measured with a Power Receiver positioned in the reference
Power Transmitter's Operating Volume at five reference positions.
NOTE: The Reference Resonance Frequency is a design property of the Power
Receiver and applies with the Power Receiver switched off.
Reserved bits: The unused parts of data packets. Set to ZERO by an originator; ignored
by a recipient.
Reserved values: The unused ranges of values associated with defined fields in data
packets. Not to be used by an originator; can cause undefined behavior
by a recipient.
Response Pattern: A sequence of eight consecutive bi-phase modulated bits transmitted by a
Power Transmitter in response to a request from a Power Receiver.
Revocation: The act of removing the validity of a Certificate. Revocation is performed
by the WPC CA.
Revocation List: A list identifying Certificates that have been revoked. The format of
Revocation Lists is outside the scope of this specification.
Root Certificate: The first Certificate in a Certificate Chain. This Certificate is self-signed.
Secondary Coil: The component of a Power Receiver that converts magnetic flux to
electromotive force.
Shielding: A component in the Power Transmitter that restricts magnetic fields to
the appropriate parts of the Power Transmitter Product, or a component
in the Power Receiver that restricts magnetic fields to the appropriate
parts of the Power Receiver Product.
Supply Power: The power dissipated from the supply.
Test Power Transmitter:
A Power Transmitter Product designed to analyze and check the
operation of a Power Receiver Product’s wireless power functionality.
Test Power Receiver: A Power Receiver Product designed to analyze and check the operation
of a Power Transmitter Product’s wireless power functionality.
To Be Signed Authentication Data:
The data that is used to generate the signature for a response to an
authentication challenge.
To Be Signed Certificate:
The data that is used to generate the signature for a Certificate.
Transmitted Power: The power from the Power Signal dissipated by any object that is not an
integral part of the Power Transmitter Product.
WPID: A 48-bit number that uniquely identifies a Qi-compliant device.
2 Acronyms
AC Alternating Current
AWG American Wire Gauge
BPP Baseline Power Profile
CA Certificate Authority
CCU Communications and Control Unit
DC Direct Current
DCR Direct Current Resistance
EAL Evaluation Assurance Level
EM Electro Magnetic
EMC Electro Magnetic Compatibility
EMF Electro Magnetic Fields
EPP Extended Power Profile
ESR Equivalent Series Resistance
FET Field Effect Transistor
FOD Foreign Object Detection
FSK Frequency-Shift Keying
lsb Least Significant Bit
msb Most Significant Bit
N/A Not Applicable
NFC Near Field Communication
PICC Proximity Integrated Circuit Card
PID Proportional Integral Differential
PRNG Pseudo-random Number Generator
PRx Power Receiver
PTx Power Transmitter
RFID Radio Frequency Identification
rms Root Mean Square
TBSAuth To Be Signed Authenticati
...
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