prEN IEC 63758-2:2026

• Status: Not Published
• Publication Date: 23-Feb-2028
• Technical Committee: CLC/TC 100X - Audio, video and multimedia systems and equipment and related sub-systems
• Current Stage: 4020 - Enquiry circulated - Enquiry
• Start Date: 18-Sep-2026
• Completion Date: 18-Sep-2026
• Directive: 2014/53/EU - Directive 2014/53/EU of The European Parliament and of the Council of 16 April 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and repealing Directive 1999/5/EC
• Mandate: M/607 - COMMISSION IMPLEMENTING DECISION of C(2025)1207 on a Standardisation Request M/607 as regards charging interface and charging communication protocol for radio equipment capable of being recharged by means of wireless charging in relation with Article 3(4), sixth subparagraph, of Directive 2014/53/EU of the European Parliament and of the Council.
• Ref Project: oSIST prEN IEC 63758-2:2026 - Qi specification - Version 2.3 - Part 2: Power profiles (Fast Track)

prEN IEC 63758-2:2026 is a CENELEC/IEC fast-track draft for the Qi specification, Version 2.3, Part 2: Power profiles. It specifies the mandatory and optional features that define Qi power profiles for PTx products, PRx products, and MC-PRx product combinations, so product developers and certification teams can match a design to a specific power profile.

What does prEN IEC 63758-2:2026 specify?

prEN IEC 63758-2:2026 specifies the Qi power-profile framework and the feature sets associated with each profile. In practice, it tells manufacturers which protocol options, alignment methods, power levels, and foreign object detection (FOD) methods belong to each profile family.

The document is organized into five main parts:

• Clause 1 introduces power profiles.
• Clause 2 defines the features used across profiles.
• Clause 3 covers PTx power profiles.
• Clause 4 covers PRx power profiles.
• Clause 5 covers MC-PRx product combination power profiles.

This structure matters because the standard is not just a list of power levels. It links each power profile to the functions a product has to support, which is what design engineers, test labs, and certification teams need when deciding how a Qi product should behave.

What are the key requirements of prEN IEC 63758-2:2026?

The main requirement pattern in prEN IEC 63758-2:2026 is simple: a product claims a named power profile only if it implements the feature set assigned to that profile. Clauses 2 to 5 define the feature vocabulary and then map it to specific transmitter, receiver, and product-combination profiles.

Clause 2 defines the feature set used by the profiles

Clause 2 defines the shared features used across the power profiles, including PotentialLoadPower, RatedLoadPower, BaselineProtocol, ExtendedProtocol, MagneticProtocol, AlignmentMethod, Authentication, PowerModes, GainLinearization, ThermalManagement, and several FOD methods. This matters in practice because it gives a common checklist for product capability and conformance testing.

A few of the most important feature definitions are:

• PotentialLoadPower is the highest guaranteed load power level that the PTx can negotiate.
• RatedLoadPower is the highest guaranteed load power level that the PRx tries to negotiate.
• BaselineProtocol uses PRx-to-PTx communication only.
• ExtendedProtocol adds bi-directional communication, enhanced FOD, data transport stream functionality, and authentication options.
• MagneticProtocol depends on magnetic attachment or active alignment and supports RestrictedMode and FullMode.
• ActiveAlignment aligns the transmitter coil center to the receiver coil center; the text links higher-power operation to tighter alignment.
• Authentication lets a Power Receiver verify the identity of a Power Transmitter.
• PowerModes, GainLinearization, and ThermalManagement describe operating optimizations and temperature control used to improve power delivery behavior.

The PTx profiles in Clause 3 define transmitter capabilities

Clause 3 sets the available PTx power profiles and the features each one has to implement. The most important design choice here is the target power level and the communication or alignment features that go with it.

The profile families include:

• BPP for low-power operation.
• EPP and EPP5 for extended power operation.
• MPP, MPP15, and MPP25 for magnetic power operation.
• APP, APP15, and APP25 for active-alignment operation.

This matters for transmitter design because the selected profile determines which negotiation, alignment, and FOD-related features the product needs to support, and at what power level the product is expected to operate.

The PRx profiles in Clause 4 define receiver capabilities

Clause 4 mirrors the transmitter side for receivers. It sets the receiver-side power profiles and the rated load power associated with each profile family.

The receiver profiles are:

• BPP
• EPP
• MPP
• MPP15
• MPP25

For a buyer or engineer, this section is the receiver counterpart to Clause 3: it tells you what load power the PRx is expected to negotiate and which optional features belong to each profile.

The combination profiles in Clause 5 matter for magnetic covers

Clause 5 defines MC-PRx product combination power profiles. These profiles are relevant where a PRx product is used with a magnetic cover.

The two combination profiles are:

• MCPE, which combines a PRx certified to BPP or EPP with a magnetic cover containing termination magnets.
• MCPM, which combines a PRx certified to MPP, MPP15, or MPP25 with a magnetic cover containing termination magnets.

This is practical for product integration work because it ties the receiver profile to the magnetic cover design, not just to the electronics.

What terms does prEN IEC 63758-2:2026 define?

• PTx - The Power Transmitter, the side that provides power.
• PRx - The Power Receiver, the side that receives and negotiates power.
• PotentialLoadPower - The highest guaranteed load power level the PTx can negotiate.
• RatedLoadPower - The highest guaranteed load power level the PRx attempts to negotiate.
• BaselineProtocol - The power-transfer protocol that uses PRx-to-PTx communications only.
• ExtendedProtocol - The protocol variant with bi-directional communication, enhanced FOD, data transport stream functionality, and authentication options.
• MagneticProtocol - The power-transfer protocol that relies on magnetic attachment or active alignment for more efficient power transfer.
• FOD - Foreign Object Detection, used to detect unwanted objects that could affect power transfer or safety.

Who uses prEN IEC 63758-2:2026?

prEN IEC 63758-2:2026 is used by manufacturers, design engineers, test laboratories, and certification teams working on Qi wireless power products. It is also relevant to quality and procurement teams that need to specify which Qi power profile a transmitter, receiver, or magnetic cover is built for.

In practice, users apply it when they are:

• selecting a power profile for a new transmitter or receiver,
• checking whether a design supports the required protocol or alignment method,
• verifying magnetic cover behavior,
• planning conformance tests and certification evidence,
• comparing product capabilities during sourcing or technical review.

Which standards are used with prEN IEC 63758-2:2026?

The document points to several Qi companion books for details that are not repeated in Part 2:

• Communications Physical Layer book - defines the low-level formats of data bits, data bytes, and data packets used by the BaselineProtocol.
• Communications Protocol book - defines packet payloads and their use in the power-transfer protocols.
• Technical System Overview book - gives an overview of the phases of the BaselineProtocol.
• MPP Communications Protocol book - documents the MagneticProtocol.
• Authentication Protocol book - gives more information on authentication.

These references matter because Part 2 sets the power-profile rules, while the companion books supply the detailed communication and protocol behavior behind those profiles.

What does the prEN IEC 63758-2:2026 document contain?

The document contains a short introduction, a feature-definition section, and profile sections for PTx, PRx, and MC-PRx combinations. The contents list shows separate subsections for Baseline, Extended, Magnetic, and Active Alignment profiles, including 15 W and 25 W variants where relevant.

It also includes the feature methods used to build those profiles, such as ActiveAlignment, MagneticAttach, Authentication, power modes, gain linearization, thermal management, and multiple FOD methods. For a reader, that means the document is mainly a profile map: it tells you what features belong to each profile and where to look when deciding whether a product matches Qi Version 2.3 Part 2.

SLOVENSKI STANDARD
01-november-2026
Specifikacija Qi - Različica 2.3 - 2. del: Močnostni profili (hitri postopek)
Qi specification - Version 2.3 - Part 2: Power profiles (Fast Track)
Ta slovenski standard je istoveten z: prEN IEC 63758-2:2026
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.

100/4540/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 63758-2 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2026-09-18 2026-12-11
SUPERSEDES DOCUMENTS:
IEC TC 100 : AUDIO, VIDEO AND MULTIMEDIA SYSTEMS AND EQUIPMENT
SECRETARIAT: SECRETARY:
Japan Ms Mahiru Uehara
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
TC 106,TC 108
ASPECTS CONCERNED:
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft for
Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
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 2.3 - Part 2: Power profiles (Fast Track)

PROPOSED STABILITY DATE: 2029
NOTE FROM TC/SC OFFICERS:
As this is a fast-track process offered by WPC, the Word file is not provided.

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
permission in writing from IEC.

QiSpecification
PowerProfiles
Version2.3
PublishDate:08December2025
DISCLAIMER
Theinformationcontainedhereinisbelievedtobeaccurateasofthedateofpublication,butisprovided“asis”andmay
containerrors.TheWirelessPowerConsortiummakesnowarranty,expressorimplied,withrespecttothisdocument
anditscontents,includinganywarrantyoftitle,ownership,merchantability,orfitnessforaparticularuseorpurpose.
NeithertheWirelessPowerConsortium,noranymemberoftheWirelessPowerConsortiumwillbeliableforerrorsin
thisdocumentorforanydamages,includingindirectorconsequential,fromuseoforrelianceontheaccuracyofthis
document.Foranyfurtherexplanationofthecontentsofthisdocument,orincaseofanyperceivedinconsistencyor
ambiguityofinterpretation,contact:[e-mail].

Contents
1. Introduction 5
1.1 PowerProfiles 5
2. Features 6
2.1 PotentialLoadPower 6
2.2 RatedLoadPower 6
2.3 BaselineProtocol 6
2.4 ExtendedProtocol 6
2.5 MagneticProtocol 6
2.6 AlignmentMethod 6
2.6.1 ActiveAlignment 6
2.6.2 MagneticAttach 6
2.7 Authentication 7
2.8 PowerModes 7
2.9 GainLinearization 7
2.10 ThermalManagement 7
2.11 MatedQDeflection(FOD) 7
2.12 DPLOSSCalibration(FOD) 7
2.13 MPLA(FOD) 7
2.14 MPLA2(FOD) 7
2.15 TerminationMagnets 7
2.16 FeedthroughMagnets 7
3. PTxPowerProfiles 8
3.1 BaselinePowerProfile(BPP) 9
3.2 ExtendedPowerProfile(EPP) 10
3.3 ExtendedPowerProfile(EPP5) 11
3.4 MagneticPowerProfile(MPP) 12
3.5 MagneticPowerProfile15W(MPP15) 13
3.6 MagneticPowerProfile25W(MPP25) 14
3.7 ActiveAlignmentPowerProfile(APP) 15
3.8 ActiveAlignmentPowerProfile15W(APP15) 16
3.9 ActiveAlignmentPowerProfile25W(APP25) 17
4. PRxPowerProfiles 18
4.1 BaselinePowerProfile(BPP) 19
4.2 ExtendedPowerProfile(EPP) 20
4.3 MagneticPowerProfile(MPP) 21
4.4 MagneticPowerProfile15W(MPP15) 22

4.5 MagneticPowerProfile25W(MPP25) 23
5. MC-PRxProductCombinationPowerProfiles 24
5.1 MCPE 24
5.2 MCPM 24
1. Introduction
1.1 PowerProfiles
Apowerprofiledefinesasetofmandatoryandoptionalfeaturesthatdeterminethecompliancepropertiesexposedat
anactiveareaofaPTxproduct,aPRxproduct,oramagneticcover.Thisbookdetailstheoptionsandfeaturesrequired
tocertifyaproducttoaspecificpowerprofile.

2. Features
Thefollowingfeaturesinthissectioncanbemandatoryoroptionaldependingonthepowerprofiletowhichtheyare
linked.
2.1 PotentialLoadPower
ThePotentialLoadPowerlevelisthehighestguaranteedloadpowerlevelthatthePTxcannegotiate.
2.2 RatedLoadPower
TheRatedLoadPoweristhehighestguaranteedloadpowerlevelthatthePRxattemptstonegotiate.
2.3 BaselineProtocol
ApowertransferprotocolthatwhichusesPowerReceiver-to-PowerTransmittercommunicationsonly.
Thelow-levelformatsofdatabits,databytes,anddatapacketsaredetailedintheCommunicationsPhysicalLayerbook.
TheCommunicationsProtocolbookdefinesthepayloadsofthedatapacketsandtheiruseinthepowertransfer
protocols.
AnoverviewofthephasesoftheBaselineProtocolcanbefoundintheTechnicalSystemOverviewbook.
2.4 ExtendedProtocol
Apowertransferprotocolthatsupportsbi-directionalcommunicationsandenhancedForeignObjectDetection(FOD)
features,aswellasdatatransportstreamfunctionalityandauthenticationoptions.
2.5 MagneticProtocol
Apowertransferprotocolthatreliesonthepresenceofmagneticattachmentoractivealignmentfunctionalityformore
efficientpowertransfer.Itsupportstwooperatingmodes:
l
RestrictedMode:One-waycommunications(PRxtoPTx)withlimitedpowerlevels.
l
FullMode:Bi-directionalcommunicationsenablingnegotiationofhigherpowerlevelsandimprovedFOD
TheMagneticProtocolisdocumentedintheMPPCommunicationsProtocolbook.
2.6 AlignmentMethod
AlignmentreferstothepositioningofthePRxproductonthePTxproductaftermating.Thealignmentmethodisthe
meansofachievingthispositioning.
2.6.1 ActiveAlignment
ActiveAlignmentistheprocessofmechanicallyaligningthecentreofthePTxcoiltothecentreofthePRxcoil.
Ahighlevelofalignmentaccuracyisnecessaryforpowertransferatlevelsgreaterthanorequalto15W.Toachieve
this,thecentreofthePTxproduct'scoilistobealignedwithinaradiusof2mmfromthecentreofthePRxproduct's
coil.
2.6.2 MagneticAttach
MagneticattachisaformofguidedpositioningwherethePRxproductattachestothePTxproductusingmagnets.This
methodtypicallyincreasestheaccuracyofthealignmentbetweenthePTxandPRxcoilswhenmated,resultinginan
optimisedpowertransfer.
2.7 Authentication
Atamper-resistantprotocolbywhichaP
...