1、 International Telecommunication Union ITU-T L.1000TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (03/2010) SERIES L: CONSTRUCTION, INSTALLATION AND PROTECTION OF CABLES AND OTHER ELEMENTS OF OUTSIDE PLANT Universal power adapter and charger solution for mobile terminals and other ICT devices Recom
2、mendation ITU-T L.1000 Rec. ITU-T L.1000 (03/2010) i Recommendation ITU-T L.1000 Universal power adapter and charger solution for mobile terminals and other ICT devices Summary Recommendation ITU-T L.1000 provides high level requirements for a universal power adapter and charger solution that will r
3、educe the number of power adapters and chargers produced and recycled by widening their application to more devices and increasing their lifetime. The solution also aims to reduce energy consumption. The longer life cycle and possibility of avoiding device duplication reduces the demand on raw mater
4、ials and waste. The universal power adapter and charger solution is designed to serve the great majority of mobile terminals and other ICT devices. History Edition Recommendation Approval Study Group 1.0 ITU-T L.1000 2010-03-09 5 Keywords Charger, common power adapter, ecodesign, energy-efficiency,
5、power adapter, universal charger solution. ii Rec. ITU-T L.1000 (03/2010) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization
6、 Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets
7、every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts pur
8、view, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is vol
9、untary. However, the Recommendation may contain certain mandatory provisions (to ensure e.g., interoperability or applicability) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and t
10、he negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this Recommendation may involv
11、e the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recomm
12、endation, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementers are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at
13、http:/www.itu.int/ITU-T/ipr/. ITU 2010 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T L.1000 (03/2010) iii CONTENTS Page 1 Scope 1 2 References. 1 3 Definitions 2 3.1 Terms defined in this Recommend
14、ation . 2 4 Abbreviations and acronyms 2 5 Basic configuration of universal power adapter and charger solution . 2 6 General requirements 3 6.1 Power adapter interface 3 6.2 Energy efficiency requirements 3 6.3 Safety requirements 4 6.4 EMC requirements 4 6.5 Resistibility requirements . 4 6.6 Eco-e
15、nvironmental specification 5 Annex A Extending the universal power adapter and charger solution to many more ICT devices than mobile terminals . 6 Annex B Universal charger solution for mobile terminals . 7 B.1 Basic configuration . 7 B.2 Common power adapter/universal charger solution and cable . 8
16、 B.3 Compatibility aspects . 8 B.4 Charger solution safety . 9 Appendix I Use cases 10 I.1 OMTP use cases . 10 I.2 Additional ITU-T use cases 11 Appendix II Common charging and local data connectivity (OMTP) 12 Appendix III Technical requirements and test method for the power adapter and the chargin
17、g/data port of mobile telecommunication terminal equipment (YD/T 1591) . 13 III.1 Basic connectivity architecture . 13 III.2 Power adapter DC output port . 14 III.3 Electrical characteristics . 15 III.4 Identification mark proposal . 17 Appendix IV Integrated I/O connection for universal power adapt
18、er/charging solution for mobile terminals (TTAS.KO-06.0028/R4) . 18 Appendix V Reliability and safety issue of high current charge 21 Appendix VI Ecodesign criteria for electronics 23 Appendix VII GSMA universal charging solution . 24 Bibliography. 25 iv Rec. ITU-T L.1000 (03/2010) Introduction This
19、 Recommendation addresses the issue of a universal charger solution for mobile terminals. Further study is required to extend the solution to other ICT devices. This Recommendation also takes into consideration energy efficiency, emissions reduction and the use of scarce and raw materials. It has be
20、en estimated (see Appendix VII) that the widespread adoption of a universal charger solution for mobile phones will result in a 50 per cent reduction in standby energy consumption and approximately 14 million tons of greenhouse gas emissions each year. The universal power adapter and charger solutio
21、n will be more convenient and simpler to use for consumers who will be able to charge their mobile phones anywhere from any available universal mobile charger or common power adapter and use the same power adapter for many future handsets, thus eliminating up to 50000 tons of duplicate power adapter
22、s and chargers. It is noted that the environmental impact of any universal charger solution should be considered over the entire life cycle and that the transition towards a universal charger solution does not aim to replace existing chargers immediately; this is because there is an estimated 2 bill
23、ion of them currently in use. This Recommendation was drafted with support from and in consideration of activity in other SDOs and other types of organizations. This Recommendation is designed to ensure the universal charger solution operates within recognized current and voltage safety parameters b
24、y adopting existing mobile terminal technologies such as computer USB output or recharging solutions in cars. Battery safety and lifetime issues have been considered in the drafting of this Recommendation. Rec. ITU-T L.1000 (03/2010) 1 Recommendation ITU-T L.1000 Universal power adapter and charger
25、solution for mobile terminals and other ICT devices 1 Scope This Recommendation describes the general requirements for a universal power adapter and charger solution for mobile terminals (e.g., mobile phones) and other ICT devices. This Recommendation includes basic configurations and general requir
26、ements for the power adapter and charger interface, energy efficiency, safety, electromagnetic compatibility, resistibility, and eco-environmental specifications. 2 References The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitut
27、e provisions of this Recommendation. At the time of publication, the editions indicated were valid. All Recommendations and other references are subject to revision; users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the Recomm
28、endations and other references listed below. A list of the currently valid ITU-T Recommendations is regularly published. The reference to a document within this Recommendation does not give it, as a stand-alone document, the status of a Recommendation. ITU-T K.21 Recommendation ITU-T K.21 (2008), Re
29、sistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents. ITU-T K.66 Recommendation ITU-T K.66 (2004), Protection of customer premises from overvoltages. ITU-T K.74 Recommendation ITU-T K.74 (2008), EMC, resistibility and safety requirements for home
30、 network devices. CISPR 22 IEC, CISPR Publication 22 (2008), Information technology equipment Radio disturbance characteristics Limits and methods of measurement. CISPR 24 IEC, CISPR Publication 24 (1997), Information technology equipment Immunity characteristics Limits and methods of measurement. I
31、EC 60950-1 IEC 60950-1 (2005), Information technology equipment Safety Part 1: General requirements. IEC 62430 IEC 62430 (2009), Environmentally conscious design for electrical and electronic products. ISO 14040 ISO 14040 (2006), Environmental management Life cycle assessment Principles and framewor
32、k. ISO 14044 ISO 14044 (2006), Environmental management Life cycle assessment Requirements and guidelines. IEEE 1680 IEEE 1680 (2009), IEEE Standard for Environmental Assessment of Electronic Products. IEEE 1725 IEEE 1725 (2006), Standard for Rechargeable Batteries for Cellular Telephones. 2 Rec. IT
33、U-T L.1000 (03/2010) 3 Definitions 3.1 Terms defined in this Recommendation This Recommendation defines the following terms: 3.1.1 charger: A common term used to describe the power adapter for the mobile terminal or other ICT device used to apply power to the battery. 3.1.2 common power adapter: Pow
34、er adapter that is fitted with a USB-IF Std-A receptacle for use with a detachable cable. 3.1.3 detachable cable: A detachable cable connects the power adapter to the mobile terminal or other ICT device for powering through two connectors, one on the charger side and one on the mobile terminal or IC
35、T device side. 3.1.4 power adapter: The equipment that converts mains AC power voltage at the input to low DC power voltage at the output, or the equipment which transfers DC power supply, e.g., car voltage to another low voltage of DC power output. 3.1.5 universal charger solution: Overall initiati
36、ve that defines the charger solution for different mobile terminals and ICT devices. 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acronyms: DC Direct Current GHG Green House Gas emission ICT Information and Communication Technology LVDC Low Voltage Direct Cur
37、rent OMTP Open Mobile Terminal Platform PDA Personal Digital Assistant SCCP Short Chain Chlorinated Paraffins USB Universal Serial Bus 5 Basic configuration of universal power adapter and charger solution The solution may consist of three elements: 1) common power adapter (e.g., charger for mobile t
38、erminal) or other ICT device or renewable energy power supply (e.g., solar, wind); 2) detachable cable; 3) mobile terminal or other ICT device. NOTE Further study is needed to specify more details (e.g., logical, functional or physical). Rec. ITU-T L.1000 (03/2010) 3 Interface AInterface AInterface
39、BInterface BInterface APoweradapterOther ICT deviceor renewablepower supplyMobile terminalor other ICTdeviceL.1000(2010)_F01Detachable cableNOTE 1 A dedicated figure for mobile terminals is shown in Annex B. NOTE 2 Considered examples for the mobile terminal are shown in Appendices II, III, IV. NOTE
40、 3 Further study of other ICT devices is required. Figure 1 One possible basic configuration of three elements for universal power adapter and charger solution 6 General requirements 6.1 Power adapter interface The power adapter is required to provide an output DC voltage and DC current. NOTE A dedi
41、cated specification for mobile terminals is shown in Annex B. 6.2 Energy efficiency requirements 6.2.1 No-load power consumption The no-load power consumption of the power adapter should be as low as practicable. It is expected that the industry will aim for a figure as close to zero as possible. If
42、 practicable, the power adapter should indicate to the customer its no load condition. It is expected that the industry will aim for the power adapters and chargers to enter a shut-down mode to minimize power consumption either when the unit is removed from the supply or when the battery is fully ch
43、arged, thereby ensuring significant energy savings. NOTE A dedicated specification for mobile terminals is shown in Annex B. 4 Rec. ITU-T L.1000 (03/2010) 6.2.2 Power efficiency with load It is expected that the industry will aim to minimize the power dissipated in the power adapter whilst powering
44、the load device. An example of an evaluation of battery charging efficiency is given in Annex B. NOTE A dedicated specification for mobile terminals is shown in Annex B. 6.2.3 Solar power for chargers and mobile phones and related ICT devices Solar-powered mobile terminals could reach about two bill
45、ion people across the globe that do not have access to electricity. Solar power has the advantage of being more sustainable and better for the environment than the electricity grid which currently uses fossil fuel in its mix of energy sources. It is therefore recommended that power adapters and char
46、gers, mobile terminals and other ICT devices be designed to make maximum use of available renewable energy. NOTE 1 This can be of considerable interest for the requirements of some developing countries, e.g., solar, wind power. As an example, power adapter and charger interfaces would need to be des
47、igned so that they do not stress the batteries inside the mobile terminal or other ICT device by providing too much current when solar input is also taking place. High temperature stresses on the ICT device caused by sun exposure should also be avoided. NOTE 2 In the future, this Recommendation may
48、be updated to use additional renewable energy sources such as wind or other forms of energy harvesting as a source of power. 6.3 Safety requirements The power adapter must be a limited power source in accordance with clause 2.5 of IEC 60950-1, and comply with the safety requirements of IEC 60950-1,
49、ITU-T K.74 and of the country where it is sold and used. The power adapter is required to have a safety circuit in order to prevent any heat generation, leakage of electricity, fire ignition, etc., in fault condition. The power adapter and detachable cable are required not to harm the human body by heat generation, leakage of electricity, fire ignition, etc., during normal/abnormal usage. The power adapter and detachable cable are required to have sufficient endurance so as not to be easi
