1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBattery charging interface forsmall handheld multimediadevicesPart 2: 2 mm barrel type interface conformance testingBS EN 62637-2:2011National forewordThis British Standard is th
2、e UK implementation of EN 62637-2:2011. It isidentical to IEC 62637-2:2011.The UK participation in its preparation was entrusted to Technical CommitteeEPL/100, Audio, video and multimedia systems and equipment.A list of organizations represented on this committee can be obtained onrequest to its sec
3、retary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. BSI 2011ISBN 978 0 580 75274 2ICS 33.160.99; 97.180Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard w
4、as published under the authority of the StandardsPolicy and Strategy Committee on 31 July 2011.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 62637-2:2011EUROPEAN STANDARD EN 62637-2 NORME EUROPENNE EUROPISCHE NORM May 2011 CENELEC European Committee for Electrot
5、echnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN
6、62637-2:2011 E ICS 33.160.99; 97.180 English version Battery charging interface for small handheld multimedia devices - Part 2: 2 mm barrel type interface conformance testing (IEC 62637-2:2011) Interface de charge de batterie pour petits appareils multimdia portables Partie 2: Essai de conformit de
7、linterface de type cylindrique 2 mm (CEI 62637-2:2011) Batterie-Ladeschnittstelle fr kleine tragbare Multimedia-Gerte - Teil 2: Konformittsprfung von Schnittstellen mit 2-mm-Zylinder (IEC 62637-2:2011) This European Standard was approved by CENELEC on 2011-05-04. CENELEC members are bound to comply
8、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 Central Secret
9、ariat 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 Central Secretariat has the same status as th
10、e 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, P
11、oland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 62637-2:2011EN 62637-2:2011 - 2 - Foreword The text of document 100/1674/CDV, future edition 1 of IEC 62637-2, prepared by technical area 1, Terminals for audio, video and data services and content
12、s, of IEC TC 100, Audio, video and multimedia systems and equipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 62637-2 on 2011-05-04. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and C
13、ENELEC shall not be held responsible for identifying any or all such patent rights. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2012-02-04 latest date by which the nationa
14、l standards conflicting with the EN have to be withdrawn (dow) 2014-05-04 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 62637-2:2011 was approved by CENELEC as a European Standard without any modification. _ BS EN 62637-2:2011- 3 - EN 62637-2:201
15、1 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest
16、 edition of the referenced document (including any amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 62637-1 2011 Battery harging interface for small hand held m
17、ultimedia devices - Part 1: 2mm barrel interface specification EN 62637-1 2011 BS EN 62637-2:2011 2 62637-2 IEC:2011(E) CONTENTS 1 Scope . 6 2 Normative references . 6 3 Abbreviations and symbols . 6 4 Test conditions for the 2 mm barrel charging interface 7 4.1 General test conditions 7 4.2 Tempera
18、ture 7 4.3 Voltage 7 5 Electrical testing of 2 mm barrel type chargers . 7 5.1 Maximum transient voltage and current values 7 5.1.1 Test purpose . 7 5.1.2 Requirements 7 5.1.3 Test equipment 8 5.1.4 Test method 8 5.2 Maximum output ripple voltage 9 5.2.1 Test purpose . 9 5.2.2 Requirements 9 5.2.3 T
19、est equipment 10 5.2.4 Test method 10 5.3 High-frequency voltage components at the charger output 11 5.3.1 Test purpose . 11 5.3.2 Requirements 11 5.3.3 Equipment . 11 5.3.4 Test method 11 5.4 Feel current of AC chargers 12 5.4.1 Test purpose . 12 5.4.2 Requirements 12 5.4.3 Equipment . 12 5.4.4 Tes
20、t method 12 5.5 Charging voltage / current window . 13 5.5.1 Test purpose . 13 5.5.2 Requirements 13 5.5.3 Equipment . 14 5.5.4 Test method 14 5.6 Current linearity for chargers . 15 5.6.1 Test purpose . 15 5.6.2 Requirements 15 5.6.3 Equipment . 15 5.6.4 Test method 16 6 Electrical testing of 2 mm
21、barrel interface accessories . 16 6.1 General . 16 6.2 Charging voltage / current window . 16 6.2.1 Test purpose . 16 6.2.2 Requirements 16 6.2.3 Equipment . 16 6.2.4 Test method 16 BS EN 62637-2:201162637-2 IEC:2011(E) 3 6.3 Accessory power consumption during device booting 17 6.3.1 Test purpose .
22、17 6.3.2 Requirements 17 6.3.3 Equipment . 17 6.3.4 Test method 17 Figure 1 Maximum duration of charging current overshoot and output voltage undershoot . 9 Figure 2 Maximum peak-to-peak ripple voltage 10 Figure 3 Maximum high frequency output voltage components . 11 Figure 4 Test set up for high fr
23、equency voltage components 12 Figure 5 Test set up . 13 Figure 6 Charging current/voltage window for 2 mm barrel chargers 14 Figure 7 Current linearity specification . 15 Figure 8 Maximum current consumption in accessory during boot-up . 17 Table 1 Maximum ripple voltage in different frequency range
24、s . 9 Table 2 Maximum high-frequency voltage components at the charger output . 11 BS EN 62637-2:2011 6 62637-2 IEC:2011(E) BATTERY CHARGING INTERFACE FOR SMALL HANDHELD MULTIMEDIA DEVICES Part 2: 2 mm barrel type interface conformance testing 1 Scope This part of the IEC 62637 provides the conforma
25、nce testing rules and guidelines for equipment built to meet the 2 mm barrel type charging interface specified in the 62637-1. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For u
26、ndated references, the latest edition of the referenced document (including any amendments) applies. IEC 62637-1:2011, Battery charging interface for small handheld multimedia devices Part 1: 2 mm barrel interface 3 Abbreviations and symbols For the purposes of this document, the following abbreviat
27、ions apply. AC Alternating Current ATT ATTenuator C Capacitance F CDN Coupling/Decoupling Network Crest factor Current peak value/current RMS value dB Decibel dB(mW) Power in dB referring to 1 mW DC Direct Current DUT Device Under Test EMC Electromagnetic Compatibility ESD ElectroStatic Discharge ES
28、R Effective Series Resistance f Frequency in Hz fIcharCharging current change frequency Hz GND GrouND I Current A IcharCharging current A ImaxMaximum current A IpeakPeak current A L Inductance H BS EN 62637-2:201162637-2 IEC:2011(E) 7 N Newton R Resistance RBW Resolution BandWidth RMS Root mean squa
29、re V Voltage V VcharCharging voltage Vmax-outMaximum output voltage VoutOutput voltage VrippleRipple voltage VBW Video BandWidth SWP SWeeP time 4 Test conditions for the 2 mm barrel charging interface 4.1 General test conditions The general test conditions are set out below. Manufacturers should not
30、e that the actual conditions of use could be more stringent. Tests conducted using this conformance document do not replace EMC, ESD, safety, type approval, or any tests set by legislation in the chargers or devices using the charging interface specified in IEC 62637-1. The purpose of the conformanc
31、e testing is to achieve good interoperability between different chargers and devices. 4.2 Temperature All measurements shall be made at normal room temperature 18 C to 25 C, unless some other temperature is specified. 4.3 Voltage All tests are performed under nominal operating voltage as defined by
32、the manufacturer. 5 Electrical testing of 2 mm barrel type chargers 5.1 Maximum transient voltage and current values 5.1.1 Test purpose The purpose of this test is to verify that the charger complies with the requirements of settling time, minimum voltage and maximum voltage limits specified in IEC
33、62637-1, 5.2. 5.1.2 Requirements The following requirements apply. Maximum charger output overshoot shall be less than or equal to 16 V. Maximum reverse voltage at charger output shall be less than or equal to 1 V. Maximum time to achieve steady state value for voltage and current ( 10 % tolerance)
34、after load change (”no load”/”normal load”) shall be less than or equal to 10 ms. Maximum duration of charging current overshoot peak value greater than 1,1 A shall be less than or equal to 5 ms. BS EN 62637-2:2011 8 62637-2 IEC:2011(E) Maximum output voltage undershoot with a load current less or e
35、qual than 100 mA shall be 4,1 V. Maximum duration of charging current overshoot is shown in Figure 1. 5.1.3 Test equipment The following equipment is required to perform the test: oscilloscope; 6 k load as “no load”; a suitable resistor to draw a 100 mA load current at the nominal output voltage; 3,
36、0 V current sink type of load with 1,1 A current limit as “normal load”; AC power source (if charger is AC powered); DC power source (if charger is made for car environment). 5.1.4 Test method Proceed as follows. a) Set the oscilloscope to measure voltage and current from the charger output. b) Set
37、the output of AC or DC power source to nominal value. c) Measure the voltage and current values when the 6 k load and 3,0 V load (a load, which results 3,0 V charging voltage) are interchanged with a fast electronic switch (switching time less than 100 s) at the charger output. d) Measure the voltag
38、e undershoot when in 100 mA resistive load (a load, which draws 100 mA at nominal output voltage). Repeat the test using minimum and maximum supply voltages specified to the charger (recommendation for AC powered chargers is nominal voltage 20 %). BS EN 62637-2:201162637-2 IEC:2011(E) 9 Current I110
39、0 mATime t0 mAmax. 5msNominal outputcurrentMax. 10ms10%Device current limit10%Voltage VMaximum output voltage undershoot at load current 100 mANominal output voltage at 100 mA load current4,1VFigure 1 Maximum duration of charging current overshoot and output voltage undershoot 5.2 Maximum output rip
40、ple voltage 5.2.1 Test purpose The purpose of this test is to verify that the charger complies with the requirements of the ripple voltage specified in 5.3 of IEC 62637-1. 5.2.2 Requirements Maximum ripple voltages for different frequency ranges are given in Table 1. Table 1 Maximum ripple voltage i
41、n different frequency ranges Frequency range Maximum ripple voltage (peak-to-peak) f 20 Hz 200 mV 20 Hz f 200 Hz 200 mV 200 Hz f 20 kHz 200 mV 20 kHz f 1 MHz 400 mV The maximum allowed output ripple voltage with maximum output current in constant current mode is 300 mV RMS for output voltages Voutbe
42、tween 2,5 V and 5,5 V. A sum of ripple voltages over the full frequency range 0 MHz to 1 MHz is 800 mV (peak-to-peak).During the test all the measured V and I values shall be within the voltage / current window of the charger interface. IEC 473/11 BS EN 62637-2:2011 10 62637-2 IEC:2011(E) Maximum pe
43、ak-to-peak ripple voltage is shown in Figure 2. 5.2.3 Test equipment The following equipment is required to perform the test: oscilloscope which offers the possibility of selecting a measured frequency band; variable resistive load 0 k to 6 k. Maximum stray capacitance of ripple test load (e.g. on-l
44、ine testing) is 2 F; AC power source (if charger is AC powered); DC power source (if charger is designed for car environment). 5.2.4 Test method Proceed as follows. a) Set the output of AC or DC power source to nominal value. Connect charger to power supply and to variable load. b) Set the oscillosc
45、ope to measure voltage from chargers output. Connect charger to variable load and set the load as 6 k. c) Set the oscilloscope to measure ripple voltage peak-to-peak value from frequency band 0 Hz to 20 Hz. Reduce resistance slowly until the output voltage is 1,5 V. Find the highest peak-to-peak val
46、ue between maximum voltage and 1,5 V. d) Set the oscilloscope to measure ripple voltage peak-to-peak value from frequency band 20 Hz to 200 Hz. Reduce resistance slowly until the output voltage is 1,5 V. Find the highest peak-to-peak value between maximum voltage and 1,5 V. e) Set the oscilloscope t
47、o measure ripple voltage peak-to-peak value from frequency band 200 Hz to 20 kHz. Reduce resistance slowly until the output voltage is 1,5 V. Find the highest peak-to-peak value between maximum voltage and 1,5 V. f) Set the oscilloscope to measure ripple voltage peak-to-peak value from frequency ban
48、d 20 kHz to 1 MHz. Reduce resistance slowly until the output voltage is 1,5 V. Find the highest peak-to-peak value between maximum voltage and 1,5 V. g) Set the variable resistance so that the output voltage is 5,5 V. Remove frequency band limitations from the oscilloscope. Set the oscilloscope to m
49、easure the root mean square (RMS) value of ripple voltage. Decrease resistance slowly so that the output voltage is 2,5 V. Find the largest RMS value between 5,5 V and 2,5 V. Repeat tests c) to g) using minimum and maximum supply voltages specified for charger (recommendation for AC-powered chargers is the nominal voltage 20 %). Repeat tests in minimum and maximum temperatures specified for charger. Frequency 200
