IEC TS 62700:2014
(Main)DC power supply for notebook computers
DC power supply for notebook computers
IEC TS 62700:2014(E) states the minimum requirements for DC power supply for notebook computers. Specifically, it gives an electrical specification (performance characteristics), an ID pin method and a connector for DC power output.
General Information
Standards Content (Sample)
IEC TS 62700 ®
Edition 1.0 2014-02
TECHNICAL
SPECIFICATION
colour
inside
DC power supply for notebook computers
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IEC TS 62700 ®
Edition 1.0 2014-02
TECHNICAL
SPECIFICATION
colour
inside
DC power supply for notebook computers
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
U
ICS 29.120; 35.180 ISBN 978-2-8322-1401-5
– 2 – TS 62700 © IEC:2014(E)
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviations . 8
3.1 Terms and definitions. 8
3.2 Abbreviations . 8
4 Electrical specification (performance characteristics) . 9
4.1 AC input rating . 9
4.2 Inrush current . 9
4.3 DC output load condition and voltage regulation . 9
4.4 DC output ripple and noise . 9
4.5 Output transient response and capacitor load . 9
4.6 Power supply timing . 9
4.6.1 Turn on delay time . 9
4.6.2 Hold-up time . 9
4.6.3 Rise time of output voltage . 9
4.7 Protection . 10
4.7.1 Over-current protection . 10
4.7.2 Short-circuit protection . 10
4.8 Over shoot . 10
5 DC power supply identification and communication method for notebook
computers . 10
6 Connectors for DC power supply for notebook computer . 12
6.1 General . 12
6.2 Specification for DC connectors . 13
6.2.1 General . 13
6.2.2 Shape and dimension of DC connectors . 13
6.2.3 Voltage polarity and electrical specification of DC connectors . 13
6.3 Cable qualities . 13
6.3.1 General . 13
6.3.2 Special considerations for an AC adapter with replaceable cable . 13
Annex A (informative) Summary of discussion in project team IEC 62700 . 14
Annex B (informative) Ad-hoc activities. 16
Annex C (informative) AC adapters used with notebook computers – Areas to be
investigated . 20
C.1 Safety . 20
C.2 EMC . 20
C.3 Future trends in connectivity and power delivery . 20
Annex D (informative) Expected issues when any adapter is connected to any host
PC . 21
D.1 Safety issues . 21
D.1.1 Over-voltage protection . 21
D.1.2 Over-current protection and short circuit protection . 21
TS 62700 © IEC:2014(E) – 3 –
D.1.3 Leakage current. 21
D.1.4 Peak current . 21
D.1.5 Surge and ringing . 21
D.1.6 Surface temperature of enclosure of AC adapters . 21
D.1.7 Risk of electric shock . 21
D.2 EMC issues . 22
D.2.1 Load change . 22
D.2.2 Input power circuit of PC . 22
D.3 Environment issues . 22
D.3.1 Inrush current . 22
D.3.2 General specifications . 22
D.3.3 High-efficiency technology . 22
D.4 Reliability and quality issues . 22
D.4.1 Life time . 22
D.4.2 Extraordinary noise . 23
D.5 Standards issues . 23
D.5.1 Environments . 23
D.5.2 EMC evaluation . 23
D.5.3 EMC class . 23
D.5.4 Safety evaluation . 23
D.5.5 LPS requirements . 23
D.5.6 Plug . 23
D.5.7 Marking of electrical ratings on PC . 23
D.6 Other issues . 24
Annex E (informative) Electrical specification . 25
E.1 DC output load condition and voltage regulation . 25
E.2 Over-current protection . 26
Bibliography . 27
Figure 1 – Shape of the plug . 12
Figure B.1 – Radiated emission . 17
Figure B.2 – Conducted emission . 18
Figure B.3 – Conducted emission . 19
Table 1 – Dimensions of the plug . 12
– 4 – TS 62700 © IEC:2014(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
DC POWER SUPPLY FOR NOTEBOOK COMPUTERS
FOREWORD
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