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BS EN IEC 63254:2022

BS EN IEC 63254:2022

$167.15

Management and interfaces for WPT. Device-to-device wireless charging (D2DWC) for mobile devices with wireless power TX/RX module

Published By Publication Date Number of Pages
BSI 2022 34
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This standard defines specification and control protocol of D2DWC module for using wireless power TX and RX functions by only one single device. And the related antenna physical design examples are presented in Annex A for sharing information. This standard propose D2DWC module circuit requirement which are consisted with the D2DWC main AP, D2DWC IC, EMT/WPT Antenna Unit and PMIC unit. In the Chapter 5, ‘Specifications and control protocol of D2DWC’, the register information and message protocols for WPT control are defined in order to implement the WPT TX function. In this standard, the interface and protocol in the wireless power process of the mobile device can be used in accordance with the corresponding wireless power transfer standard. Any wireless power transfer standard working inside 100 – 350 kHz frequency range can be included from the scope of this standard. This standard can be used to mobile wireless power transfer in mobile phones and other mobile devices, IoT, and micro-sensor industries and related application fields.

PDF Catalog

PDF Pages PDF Title
2 undefined
4 European foreword
Endorsement notice
5 English
CONTENTS
7 FOREWORD
9 1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
10 3.2 Abbreviated terms
11 4 Operation scenarios
4.1 Architecture
Figures
Figure 1 – Overall architecture of the proposed EMT/WPT module
12 4.2 Communication procedure for D2DWC
4.2.1 General
4.2.2 Total operation scenario of D2DWC
Figure 2 – Operation scenario of D2DWC
13 4.2.3 TX operation scenario of D2DWC
Figure 3 – TX operation scenario of D2DWC using battery power only
14 4.2.4 RX operation scenario of D2DWC
Figure 4 – TX operation scenario of D2DWC using constant power supply
15 5 Specifications and control protocol of D2DWC unit
5.1 General control of a D2DWC unit of the TX-RX combined type
5.1.1 General
Figure 5 – RX operation scenario of D2DWC
16 Figure 6 – Wireless charging control architecture of the proposed standard
Tables
Table 1 – Specifications for the TX operation of D2DWC unit
17 5.1.2 Purposes of WPT control of the D2DWC unit
5.1.3 Operation control of the D2DWC unit
Figure 7 – System operation efficiency
Figure 8 – Operation diagram for D2DWC WPT
18 Figure 9 – D2DWC TX operation voltage diagram
19 Figure 10 – D2DWC TX operation voltage diagram
20 5.2 Design guide for D2DWC TX-RX combined power transmitter
Figure 11 – D2DWC RX operable voltage/current diagram
21 5.3 Control protocol of D2DWC unit
5.3.1 General
Figure 12 – Major function blocks of D2DWC
22 5.3.2 WPT command
Figure 13 – D2DWC unit wireless power transfer and control protocol of the MCU
Table 2 – WPT CMD fields
Table 3 – WPT subcommands
23 5.3.3 D2DWC control
Table 4 – D2DWC Control Command fields
Table 5 – Determination of the D2DWC wireless power transfer operation
Table 6 – Determination of battery charging amount
24 Table 7 – D2DWC unit temperature limit
Table 8 – D2DWC unit voltage limit
Table 9 – D2DWC unit current limit
Table 10 – Operation setting when wireless charging stops
25 5.3.4 Reply of D2DWC
5.3.5 D2DWC parameter
Table 11 – Operation setting when an error occurs
Table 12 – Responses of D2DWC Control CMDs
Table 13 – D2DWC parameter command fields
Table 14 – Output voltage field of D2DWC
26 Table 15 – D2DWC output current field
Table 16 – Current temperature of D2DWC unit
Table 17 – Output current of the battery terminal
Table 18 – Output current of battery terminal
Table 19 – Risk state field of the D2DWC unit
Table 20 – Desired minimum voltage of the D2DWC unit
27 Annex A (informative)Antenna design guide for D2DWC TX-RX combined power transmitter
A.1 5-W-class WPT RX antenna
A.1.1 General
A.1.2 Antenna design guide
Figure A.1 – D2DWC TX/RX antenna of the 5-W-class WPT RX standard
28 A.1.3 Detailed specifications of circuit
Figure A.2 – D2DWC TX/RX circuit diagram of the 5-W-class WPT RX specifications
Table A.1 – D2DWC TX/RX antenna parameters of the 5-W-class WPT RX specifications
29 A.2 15-W-class WPT RX antenna design guide
A.2.1 General
Figure A.3 – D2DWC TX/RX antenna of the 15-W-class WPT RX specifications
Table A.2 – Electric characteristics of the D2DWC TX/RX circuitof the 5-W-class WPT RX specifications
30 A.2.2 Detailed specifications of circuit
Figure A.4 – D2DWC TX/RX circuit diagram of the 15-W-class WPT RX specifications
Table A.3 – D2DWC TX/RX antenna parameters of the 15-W-class WPT RX specifications
31 Table A.4 – Electric characteristics of the D2DWC TX/RX circuitof 15-W-class WPT RX specifications
32 Annex B (informative)Regulation certification
33 Bibliography

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BS EN IEC 63254:2022
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