IEC PAS 63095-1:2017

The Qi wireless power transfer system power class 0 specification - Parts 1 and 2: Interface definitions

IEC PAS 63095-1:2017(E) defines the interface between a Power Transmitter and a Power Receiver, i.e. Power Class 0 Base Stations and Mobile Devices. Power Class 0 is the WPC designation for flat-surface devices, such as chargers, mobile phones, tablets, cameras, and battery packs, in the Baseline Power Profile (≤ 5 W) and Extended Power Profile (≤ 15 W)

General Information

• Status: Withdrawn
• Publication Date: 09-May-2017
• Withdrawal Date: 15-Jun-2023
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.240.99 - Other equipment related to power transmission and distribution networks
• Technical Committee: TA 15 - Wireless Power Transfer
• Drafting Committee: WG 1 - TC 100/TA 15/WG 1
• Current Stage: WPUB - Publication withdrawn
• Start Date: 16-Jun-2023
• Completion Date: 16-Jun-2023

Standards Content (Sample)

IEC PAS 63095-1 ®
Edition 1.0 2017-05
PUBLICLY AVAILABLE
SPECIFICATION
PRE-STANDARD
colour
inside
The Qi wireless power transfer system power class 0 specification –
Parts 1 and 2: Interface Definitions

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IEC PAS 63095-1 ®
Edition 1.0 2017-05
PUBLICLY AVAILABLE
SPECIFICATION
PRE-STANDARD
colour
inside
The Qi wireless power transfer system power class 0 specification –

Parts 1 and 2: Interface Definitions

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.240.99 ISBN 978-2-8322-415-5

– 2 – IEC PAS 63095-1:2017 © IEC 2017
WIRELESS POWER
The Qi Wireless Power Transfer System Parts 1 and 2: Interface Definitions
C O N S O R T I U M
Power Class 0 Specification
Version 1.2.2 Contents
Contents
1 General . 8
1.1 Introduction . 8
1.2 Scope . 8
1.2.1 Current Specification structure (introduced in version 1.2.1) . 8
1.2.2 Earlier Specification structure (version 1.2.0 and below) . 9
1.3 Main features of the Qi Wireless Power Transfer System . 9
1.4 Conformance and references . 10
1.4.1 Conformance . 10
1.4.2 References . 10
1.5 Definitions . 11
1.6 Acronyms . 14
1.7 Symbols . 16
1.8 Conventions . 17
1.8.1 Cross references . 17
1.8.2 Informative text . 17
1.8.3 Terms in capitals . 17
1.8.4 Units of physical quantities . 17
1.8.5 Decimal separator . 17
1.8.6 Notation of numbers . 18
1.8.7 Bit ordering in a byte . 18
1.8.8 Byte numbering . 18
1.8.9 Multiple-bit fields . 19
1.9 Operators . 19
1.9.1 Exclusive-OR . 19
1.9.2 Concatenation . 19
1.10 Measurement equipment . 19

Wireless Power Consortium
WIRELESS POWER
The Qi Wireless Power Transfer System Parts 1 and 2: Interface Definitions
C O N S O R T I U M
Power Class 0 Specification
Version 1.2.2 Contents
PART 1: Primary Interface Definition . 20
2 Mechanical interface . 21
2.1 Power Receiver design requirements (PRx) . 21
2.1.1 Interface Surface . 21
2.1.2 Alignment Aid . 21
2.2 Power Transmitter design requirements (PTx) . 22
3 Electromagnetic interface . 23
3.1 Power Receiver design requirements (PRx) . 23
3.1.1 Dual resonant circuit . 26
3.1.2 Rectification circuit . 28
3.1.3 Sensing circuits . 28
3.1.4 Communications modulator . 28
3.1.5 Communications demodulator . 28
3.1.6 Output disconnect . 28
3.1.7 Meaningful functionality . 29
3.1.8 Shielding . 29
3.2 Power Transmitter design requirements (PTx) . 30
3.2.1 Load step and load dump (informative) . 30
3.2.2 Load step test procedure . 30
3.2.3 Load dump test procedure . 32
3.2.4 Power Receiver over-voltage protection . 35
4 Thermal interface . 42
4.1 Interface Surface temperature rise . 42
5 Information interface . 43
5.1 System Control . 43
5.1.1 Overview (informative) . 43
5.1.2 Power Transmitter (PTx) perspective . 48
5.1.3 Power Receiver (PRx) perspective . 69
5.1.4 State diagram (informative) . 83
5.2 Power Receiver to Power Transmitter communications interface . 84
5.2.1 Introduction . 84
5.2.2 Physical and data link layers (PRx to PTx) . 84
5.2.3 Logical layer (PRx to PTx) . 89

Wireless Power Consortium
– 4 – IEC PAS 63095-1:2017 © IEC 2017
WIRELESS POWER
The Qi Wireless Power Transfer System Parts 1 and 2: Interface Definitions
C O N S O R T I U M
Power Class 0 Specification
Version 1.2.2 Contents
5.3 Power Transmitter to Power Receiver communications interface . 104
5.3.1 Introduction . 104
5.3.2 Physical and data link layers (PTx to PRx) . 104
5.3.3 Logical layer (PTx to PRx) . 110
PART 2: Secondary Interface Definition .112
6 External Power Input (Informative) . 113
6.1 Available power—Extended Power Profile only . 113
7 Power Levels—Extended Power Profile only . 114
7.1 Guaranteed Power . 114
7.2 Light load . 114
8 System Efficiency (Informative) . 115
8.1 Definition . 115
8.2 Power Transmitter efficiency . 116
8.2.1 Baseline Power Profile .
...