IEC 63028:2017

Wireless power transfer - Airfuel Alliance resonant baseline system specification (BSS)

IEC 63028:2017 defines technical requirements, behaviors and interfaces used for ensuring interoperability for flexibly coupled wireless power transfer (WPT) systems for AirFuel Resonant WPT. This document is based on AirFuel Wireless Power Transfer System Baseline System Specification (BSS) v1.3.

Transfert d'énergie sans fil - Spécification du système de référence (BSS) pour le système résonant d'AirFuel Alliance

L'IEC 63028:2017 définit les exigences techniques, les comportements ainsi que les interfaces utilisées pour assurer l'interopérabilité des systèmes de transfert d'énergie sans fil (WPT) à couplage flexible avec le système WPT résonant AirFuel. Ce document repose sur la Spécification du système de référence (BSS) du système de transfert d'énergie sans fil AirFuel v1.3.

General Information

• Status: Published
• Publication Date: 18-Jun-2017
• ICS: 29.240.99 - Other equipment related to power transmission and distribution networks
• ICS: 33.160.99 - Other audio, video and audiovisual equipment
• ICS: 35.200 - Interface and interconnection equipment
• Technical Committee: TA 15 - Wireless Power Transfer
• Drafting Committee: WG 1 - TC 100/TA 15/WG 1
• Current Stage: PPUB - Publication issued
• Start Date: 30-Jun-2017
• Completion Date: 19-Jun-2017

Standards Content (Sample)

IEC 63028 ®
Edition 1.0 2017-06
INTERNATIONAL
STANDARD
colour
inside
Wireless power transfer – Airfuel alliance resonant baseline system specification
(BSS)
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
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International Standards for all electrical, electronic and related technologies.

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IEC 63028 ®
Edition 1.0 2017-06
INTERNATIONAL
STANDARD
colour
inside
Wireless power transfer – Airfuel alliance resonant baseline system specification

(BSS)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.240.99; 33.160.99; 35.200 ISBN 978-2-8322-4429-6

– 2 – IEC 63028:2017  IEC:2017
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Terms, definitions, symbols and abbreviated terms . 10
3.1 Terms and definitions . 10
3.2 Symbols and abbreviated terms . 13
3.2.1 Symbols . 13
3.2.2 Abbreviated terms . 17
4 System description . 17
5 Conformance and backwards compatibility . 18
6 Device types . 19
6.1 PTU classification . 19
6.2 PRU category . 20
7 Power transfer specifications . 20
7.1 System equivalent circuit and reference parameters . 20
7.2 General system requirements . 21
7.2.1 Operating frequency . 21
7.2.2 Z relationship to R . 21
TX_IN RECT
7.2.3 Power stability . 21
7.2.4 PTU co-location protection. 21
7.2.5 PRU self-protection (informative) . 21
7.3 Resonator requirements . 21
7.3.1 Resonator coupling efficiency (RCE) . 21
7.3.2 PTU resonator requirements . 22
7.3.3 PRU resonator requirements . 24
7.4 Load parameters . 25
7.4.1 Load parameters introduction . 25
7.4.2 Minimum load resistance . 26
7.4.3 Maximum allowable dynamic load . 26
7.4.4 Maximum load capacitance . 26
8 Power control specifications . 26
8.1 Control objectives . 26
8.2 PTU specifications . 26
8.2.1 PTU state . 26
8.2.2 General state requirements . 27
8.2.3 PTU power save state. 28
8.2.4 PTU Low Power state . 30
8.2.5 PTU Power Transfer state . 31
8.2.6 PTU Configuration state . 33
8.2.7 PTU Local Fault state . 34
8.2.8 PTU latching fault state . 34
8.2.9 PTU state transitions . 35
8.2.10 PTU Test Mode. 38
8.3 PRU specifications . 38
8.3.1 PRU general requirements . 38

8.3.2 PRU state model . 41
8.3.3 Null state . 42
8.3.4 PRU boot . 42
8.3.5 PRU On state . 42
8.3.6 PRU System Error state . 43
8.3.7 PRU state transitions . 44
9 Signaling specifications . 45
9.1 Architecture and state diagrams . 45
9.1.1 Architecture . 45
9.1.2 Overall charge process . 46
9.2 Charge procedure and requirements . 48
9.2.1 Removing PRU from WPT network . 48
9.2.2 Power Sharing mode . 48
9.3 Bluetooth low energy requirements . 49
9.3.1 Bluetooth low energy requirements introduction . 49
9.3.2 Bluetooth low energy objectives . 49
9.3.3 PTU hardware requirement . 49
9.3.4 PRU hardware requirement . 49
9.3.5 Basic network structure . 49
9.3.6 RF requirements . 49
9.3.7 Timing and sequencing requirements . 50
9.3.8 Profile structure . 53
9.4 BLE profile definition . 53
9.4.1 GATT sub-procedure . 53
9.4.2 Configuration . 53
9.4.3 PRU requirements . 54
9.4.4 PTU requirements . 55
9.4.5 Connection establishment . 55
9.4.6 Security considerations . 57
9.4.7 Charge completion . 57
9.5 WPT service characteristics . 58
9.5.1 WPT service characteristics introduction. 58
9.5.2 PRU advertising payload . 58
9.5.3 WPT service . 60
9.5.4 PRU control . 62
9.5.5 PTU static parameter . 64
9.5.6 PRU static parameter characteristic . 69
9.5.7 PRU dynamic parameter characteristic . 72
9.5.8 PRU alert characteristic . 76
9.6 Cross connection algorithm . 78
9.6.1 Cross connection algorithm introduction . 78
9.6.2 Definitions . 78
9.6.3 Acceptance of advertisement . 78
9.6.4 Impedance shift sensing . 78
9.6.5 Reboot bit handling . 79
9.6.6 Time set handling . 79
9.7 Mode transition . 80
9.7.1 Mode transition introduction . 80
9.7.2 Mode transition procedure . 80

-------------------
...

IEC 63028 ®
Edition 1.0 2017-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Wireless power transfer – AirFuel Alliance resonant baseline system specification
(BSS)
Transfert d'énergie sans fil – Spécification du système de référence (BSS) pour le
système résonant d'AirFuel Alliance

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

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CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
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variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary

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IEC publications issued since 2002. Some entries have been
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If you wish to give us your feedback on this publication or CISPR.

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IEC 63028 ®
Edition 1.0 2017-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Wireless power transfer – AirFuel Alliance resonant baseline system specification

(BSS)
Transfert d'énergie sans fil – Spécification du système de référence (BSS) pour le

système résonant d'AirFuel Alliance

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.240.99; 33.160.99; 35.200 ISBN 978-2-8322-8732-3

– 2 – IEC 63028:2017  IEC 2017
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Terms, definitions, symbols and abbreviated terms . 10
3.1 Terms and definitions . 10
3.2 Symbols and abbreviated terms . 13
3.2.1 Symbols . 13
3.2.2 Abbreviated terms . 17
4 System description . 17
5 Conformance and backwards compatibility . 18
6 Device types . 19
6.1 PTU classification . 19
6.2 PRU category . 20
7 Power transfer specifications . 21
7.1 System equivalent circuit and reference parameters . 21
7.2 General system requirements . 21
7.2.1 Operating frequency . 21
7.2.2 Z relationship to R . 21
TX_IN RECT
7.2.3 Power stability . 21
7.2.4 PTU co-location protection. 21
7.2.5 PRU self-protection (informative) . 21
7.3 Resonator requirements . 22
7.3.1 Resonator coupling efficiency (RCE) . 22
7.3.2 PTU resonator requirements . 22
7.3.3 PRU resonator requirements . 24
7.4 Load parameters . 26
7.4.1 Load parameters introduction . 26
7.4.2 Minimum load resistance . 26
7.4.3 Maximum allowable dynamic load . 26
7.4.4 Maximum load capacitance . 26
8 Power control specifications . 27
8.1 Control objectives . 27
8.2 PTU specifications . 27
8.2.1 PTU state . 27
8.2.2 General state requirements . 27
8.2.3 PTU power save state. 29
8.2.4 PTU Low Power state . 31
8.2.5 PTU Power Transfer state . 31
8.2.6 PTU Configuration state . 34
8.2.7 PTU Local Fault state . 35
8.2.8 PTU latching fault state . 35
8.2.9 PTU state transitions . 36
8.2.10 PTU Test Mode. 39
8.3 PRU specifications . 39
8.3.1 PRU general requirements . 39

8.3.2 PRU state model . 42
8.3.3 Null state . 43
8.3.4 PRU boot . 43
8.3.5 PRU On state . 44
8.3.6 PRU System Error state . 44
8.3.7 PRU state transitions . 45
9 Signaling specifications . 46
9.1 Architecture and state diagrams . 46
9.1.1 Architecture . 46
9.1.2 Overall charge process . 47
9.2 Charge procedure and requirements . 49
9.2.1 Removing PRU from WPT network . 49
9.2.2 Power Sharing mode . 49
9.3 Bluetooth low energy requirements . 50
9.3.1 Bluetooth low energy requirements introduction . 50
9.3.2 Bluetooth low energy objectives . 50
9.3.3 PTU hardware requirement . 50
9.3.4 PRU hardware requirement . 50
9.3.5 Basic network structure . 50
9.3.6 RF requirements . 50
9.3.7 Timing and sequencing requirements . 51
9.3.8 Profile structure . 54
9.4 BLE profile definition . 54
9.4.1 GATT sub-procedure . 54
9.4.2 Configuration . 54
9.4.3 PRU requirements . 55
9.4.4 PTU requirements . 56
9.4.5 C
...