SIST EN IEC 63245-1:2021

Spatial wireless power transfer based on multiple magnetic resonances - Part 1: Requirements (IEC 63245-1:2021)

This part of IEC 63245 specifies requirements for spatial wireless power transfer based on multiple magnetic resonances (SWPT-MMR), which is a non-radiative wireless power transfer (WPT). This document contains two categories of requirements: general requirements and functional requirements. The general requirements cover charging procedures and charging zones. The functional requirements cover each component of a SWPT-MMR system, such as transmitter coils.

Räumliche drahtlose Energieübertragung basierend auf mehrfachen magnetischen Resonanzen - Teil 1: Anforderungen (IEC 63245-1:2021)

Transfert d'énergie sans fil dans l'espace reposant sur des résonances magnétiques multiples - Partie 1: Exigences (IEC 63245-1:2021)

L'IEC 63245-1:2021 spécifie les exigences relatives au transfert d’énergie sans fil dans l’espace reposant sur des résonances magnétiques multiples (SWPT-MMR), qui est un mode de transfert d’énergie sans fil (WPT) non radiatif. Le présent document contient deux catégories d’exigences: les exigences générales et les exigences fonctionnelles. Les exigences générales couvrent les procédures de charge et la zone de charge. Les exigences fonctionnelles couvrent chaque composant d’un système SWPT-MMR (les bobines de transmission, par exemple).

Prostorski brezžični prenos energije na osnovi več magnetnih resonanc - 1. del: Zahteve (IEC 63245-1:2021)

General Information

• Status: Published
• Publication Date: 14-Nov-2021
• ICS: 29.240.99 - Other equipment related to power transmission and distribution networks
• ICS: 33.160.01 - Audio, video and audiovisual systems in general
• ICS: 35.200 - Interface and interconnection equipment
• Technical Committee: AVM - Audio, video and multimedia systems and equipment
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 28-Apr-2021
• Due Date: 03-Jul-2021
• Completion Date: 15-Nov-2021
• Ref Project: EN IEC 63245-1:2021 - Spatial wireless power transfer based on multiple magnetic resonances - Part 1: Requirements

Overview

EN IEC 63245-1:2021 specifies requirements for spatial wireless power transfer based on multiple magnetic resonances (SWPT‑MMR) - a non‑radiative form of wireless power transfer (WPT). The standard establishes two categories of requirements: general requirements (charging procedures and charging zones) and functional requirements (system components such as transmitter coils, current control and frequency behaviour). It also defines key terms used in SWPT‑MMR systems, including charging zone, quiet zone, and null point.

Key Topics and Requirements

• Scope and terminology
  • Defines SWPT and SWPT‑MMR concepts and related terms (null point, quiet zone, transmitter coil).
• General requirements
  • Requirements for the three‑dimensional charging zone where receivers may be freely positioned.
  • Rules for charging procedures to ensure consistent power delivery and management across spatial positions.
  • Concepts to manage areas of reduced field (null points) and equalized field regions (quiet zones).
• Functional requirements
  • Transmitter coil requirements: arrangements, multiple coil use, and inter‑coil relationships to support spatial coverage.
  • Current operations: supplying current and phase control across transmitters to shape magnetic fields.
  • Frequency management: requirements for adjusting resonance frequency to maintain transfer efficiency.
• System modelling and reference
  • Provides structure for component interactions and basic charging sequences (see IEC 63245 series for the reference model).

Applications and Who Uses This Standard

EN IEC 63245‑1:2021 is intended for organizations designing, integrating, testing or regulating spatial WPT systems:

• Product manufacturers of wireless charging platforms for consumer electronics, IoT devices and industrial sensors.
• System integrators deploying room‑scale or open‑space charging installations that rely on multiple resonant coils.
• Test laboratories and certification bodies validating compliance with spatial WPT behaviour and safety expectations.
• R&D teams and standardization committees developing interoperable SWPT solutions or reference architectures.
• Safety and compliance engineers addressing electromagnetic field distribution, null points and controlled charging procedures.

Related Standards

• IEC 63245‑2 (Spatial WPT based on multiple magnetic resonances - Part 2: Reference model)
• IEC TR 62869 (WPT physical layer technologies)
• IEC 63006, IEC 63028 (related WPT and magnetic resonance standards)
• IEC PAS 63095 and WPC Qi series (induction WPT context)

EN IEC 63245‑1:2021 provides foundational, interoperable requirements for implementing robust, spatially aware magnetic‑resonant wireless power systems - essential reading for teams building next‑generation non‑radiative charging spaces.

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2021
Prostorski brezžični prenos energije na osnovi več magnetnih resonanc - 1. del:
Zahteve (IEC 63245-1:2021)
Spatial wireless power transfer based on multiple magnetic resonances - Part 1:
Requirements (IEC 63245-1:2021)
Räumliche drahtlose Energieübertragung basierend auf mehrfachen magnetischen
Resonanzen - Teil 1: Anforderungen (IEC 63245-1:2021)
Transfert d'énergie sans fil dans l'espace reposant sur des résonances magnétiques
multiples - Partie 1: Exigences (IEC 63245-1:2021)
Ta slovenski standard je istoveten z: EN IEC 63245-1:2021
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
35.200 Vmesniška in povezovalna Interface and interconnection
oprema equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 63245-1

NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2021
ICS 29.240.99; 35.200
English Version
Spatial wireless power transfer based on multiple magnetic
resonances - Part 1: Requirements
(IEC 63245-1:2021)
Transfert d'énergie sans fil dans l'espace reposant sur des Räumliche drahtlose Energieübertragung basierend auf
résonances magnétiques multiples - Partie 1: Exigences mehrfachen magnetischen Resonanzen - Teil 1:
(IEC 63245-1:2021) Anforderungen
(IEC 63245-1:2021)
This European Standard was approved by CENELEC on 2021-04-13. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 63245-1:2021 E

European foreword
The text of document 100/3548/FDIS, future edition 1 of IEC 63245-1, prepared by IEC/TC 100
"Audio, video and multimedia systems and equipment" was submitted to the IEC-CENELEC parallel
vote and approved by CENELEC as EN IEC 63245-1:2021.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2022-01-13
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024-04-13
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Endorsement notice
The text of the International Standard IEC 63245-1:2021 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 62827-3 NOTE Harmonized as EN 62827-3
IEC 63006:2019 NOTE Harmonized as EN IEC 63006:2019 (not modified)
IEC 63028:2017 NOTE Harmonized as EN 63028:2017 (not modified)

IEC 63245-1 ®
Edition 1.0 2021-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Spatial wireless power transfer based on multiple magnetic resonances –

Part 1: Requirements
Transfert d’énergie sans fil dans l’espace reposant sur des résonances

magnétiques multiples –
Partie 1: Exigences
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.240.99; 35.200 ISBN 978-2-8322-9470-3

– 2 – IEC 63245-1:2021 © IEC 2021
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions, and abbreviated terms . 6
3.1 Terms and definitions . 6
3.2 Abbreviated terms . 7
4 Overview of spatial wireless power transfer . 7
5 General requirements . 9
5.1 Requirements on charging zone . 9
5.1.1 Three-dimensional charging zone . 9
5.1.2 Quiet zone . 9
5.1.3 Null point . 10
5.2 Requirements on charging procedure . 11
6 Functional requirements . 12
6.1 Requirements on transmitter coils . 12
6.1.1 Multiple transmitter coils . 12
6.1.2 Location of transmitter coils . 13
6.1.3 Relationship between two transmitter coils . 13
6.1.4 Structure of connecting a pair of transmitter coils . 13
6.2 Requirements on operations related to current . 14
6.2.1 Supplying current. 14
6.2.2 Controlling phase of current . 14
6.3 Requirements on frequency . 15
6.3.1 Adjusting resonance frequency . 15
Bibliography . 16

Figure 1 – Conceptual image of SWPT [IEC 62827-3] . 8
Figure 2 – Conceptual image of SWPT-MMR . 8
Figure 3 – Free positioning of a receiver in a charging zone . 9
Figure 4 – Interaction between transmitter coils for generating a quiet zone . 9
Figure 5 – Interaction between transmitter coils for generating a quiet zone (top view) . 10
Figure 6 – Null points in a charging zone (top view) . 10
Figure 7 – Addressing null points by using two pairs of transmitter coils (top view) . 11
Figure 8 – Basic charging procedure of SWPT-MMR . 12
Figure 9 – Arrangement of transmitter coils . 13
Figure 10 – Example of transmitter coils and a power supplier in an SWPT-MMR
system . 14

IEC 63245-1:2021 © IEC 2021 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SPATIAL WIRELESS POWER TRANSFER
BASED ON MULTIPLE MAGNETIC RESONANCES –

Part 1: Requirements
FOREWORD
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rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 63245-1 has been prepared by technical area 15: Wireless power
transfer, of IEC technical committee 100: Audio, video and multimedia systems and equipment.
The text of this International Standard is based on the following documents:
FDIS Report on voting
100/3548/FDIS 100/3564/RVD
Full information on the voting for the approval of this International Standard can be found in the
report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 63245 series, published under the general title Spatial wireless
power transfer based on multiple magnetic resonances, can be found on the IEC website.

– 4 – IEC 63245-1:2021 © IEC 2021
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.

IEC 63245-1:2021 © IEC 2021 – 5 –
INTRODUCTION
The IEC 63245 (Spatial wireless power transfer based on multiple magnetic resonances,
SWPT-MMR) series provides requirements and a reference model for implementing a spatial
wireless power transfer system. The IEC 63245 series consists of the following parts:
– IEC 63245-1: Spatial wireless power transfer based on multiple magnetic resonances –
Part 1: Requirements, which describes requirements of SWPTs with multiple magnetic
resonances; and
– IEC 63245-2: Spatial wireless power transfer based on multiple magnetic resonances –
Part 2: Reference model, which describes a reference model for SWPTs with multiple
magnetic resonances.
– 6 – IEC 63245-1:2021 © IEC 2021
SPATIAL WIRELESS POWER TRANSFER
BASED ON MULTIPLE MAGNETIC RESONANCES –

Part 1: Requirements
1 Scope
This part of IEC 63245 specifies requirements for spatial wireless power transfer based on
multiple magnetic resonances (SWPT-MMR), which is a non-radiative wireless power t
...