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BSI PD IEC/TS 62700:2014

BSI PD IEC/TS 62700:2014

$142.49

DC power supply for notebook computers

Published By Publication Date Number of Pages
BSI 2014 32
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This Technical Specification states the minimum requirements for DC power supply for notebook computers. Specifically, it gives

  • an electrical specification (performance characteristics),

  • an ID pin method,

  • a connector for DC power output.

The no-load power and power efficiency are outside the scope of this Technical Specification.

Note that safety requirements are covered by IEC 60950-1 and EMC requirements are covered by CISPR 22 and CISPR 24. CISPR 32 may be used in place of CISPR 22 for this purpose. These requirements are neither re-stated nor challenged by this Technical Specification but the designer should give due consideration to the performance of the power supply when used with a compatible notebook computer.

NOTE Applications for use in aerospace, military, medical, or smart grid are not addressed in this Technical Specification.

PDF Catalog

PDF Pages PDF Title
4 CONTENTS
6 FOREWORD
8 INTRODUCTION
9 1 Scope
2 Normative references
10 3 Terms, definitions and abbreviations
3.1 Terms and definitions
3.2 Abbreviations
11 4 Electrical specification (performance characteristics)
4.1 AC input rating
4.2 Inrush current
4.3 DC output load condition and voltage regulation
4.4 DC output ripple and noise
4.5 Output transient response and capacitor load
4.6 Power supply timing
4.6.1 Turn on delay time
4.6.2 Hold-up time
4.6.3 Rise time of output voltage
12 4.7 Protection
4.7.1 Over-current protection
4.7.2 Short-circuit protection
4.8 Over shoot
5 DC power supply identification and communication method for notebook computers
14 6 Connectors for DC power supply for notebook computer
6.1 General
Figures
Figure 1 – Shape of the plug
Tables
Table 1 – Dimensions of the plug
15 6.2 Specification for DC connectors
6.2.1 General
6.2.2 Shape and dimension of DC connectors
6.2.3 Voltage polarity and electrical specification of DC connectors
6.3 Cable qualities
6.3.1 General
6.3.2 Special considerations for an AC adapter with replaceable cable
16 Annex A (informative) Summary of discussion in project team IEC 62700
18 Annex B (informative) Ad-hoc activities
19 Figure B.1 – Radiated emission
20 Figure B.2 – Conducted emission
21 Figure B.3 – Conducted emission
22 Annex C (informative) AC adapters used with notebook computers – Areas to be investigated
C.1 Safety
C.2 EMC
C.3 Future trends in connectivity and power delivery
23 Annex D (informative) Expected issues when any adapter is connected to any host PC
D.1 Safety issues
D.1.1 Over-voltage protection
D.1.2 Over-current protection and short circuit protection
D.1.3 Leakage current
D.1.4 Peak current
D.1.5 Surge and ringing
D.1.6 Surface temperature of enclosure of AC adapters
D.1.7 Risk of electric shock
24 D.2 EMC issues
D.2.1 Load change
D.2.2 Input power circuit of PC
D.3 Environment issues
D.3.1 Inrush current
D.3.2 General specifications
D.3.3 High-efficiency technology
D.4 Reliability and quality issues
D.4.1 Life time
25 D.4.2 Extraordinary noise
D.5 Standards issues
D.5.1 Environments
D.5.2 EMC evaluation
D.5.3 EMC class
D.5.4 Safety evaluation
D.5.5 LPS requirements
D.5.6 Plug
D.5.7 Marking of electrical ratings on PC
26 D.6 Other issues
27 Annex E (informative) Electrical specification
E.1 DC output load condition and voltage regulation
28 E.2 Over-current protection
29 Bibliography

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BSI PD IEC/TS 62700:2014
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