关键词：直流电源系统；供应电压；固定极性；电流电结构；交流电（AC）；直流供电直流（DC）源
摘 要：DC power systems are electrical structures that supply voltage or current of fixed polarity, either positive or negative. Such systems can be powered by an alternating current (AC) or a direct current (DC) source. A simple DC power system consists of a transformer, rectifier, filter, and regulator, all of which work to provide a constant and ripple-free DC output. DC power systems largely find applications in telecommunications, data centers, and transportation. However, they are also used in the oil and gas, consumer electronics, and automotive industries.
目 录：

01. Executive Summary

02. List of Abbreviations

03. Scope of the Report

03.1 Market overview

03.2 Product offerings

04. Market Research Methodology

04.1 Market research process

04.2 Research methodology

05. Introduction

06. Market Landscape

06.1 Basic power supply structure

06.2 Data center power supply structure

06.3 Telecom system power supply structure

06.4 Telecom industry

06.5 Data center

06.6 Market size and forecast

06.7 Five forces analysis

07. Market Segmentation by End-user

07.1 Segmentation of global DC power system market

by end-user

07.2 Global DC power system market in

telecommunications segment

07.2.1 Market size and forecast

07.3 Global DC power system market in industrial

segment

07.3.1 Market size and forecast

07.4 Global DC power system market in commercial

segment

07.4.1 Market size and forecast

08. Geographical Segmentation

08.1 Segmentation of global DC power system market

by geography

08.2 DC power system market in Americas

08.2.1 Market size and forecast

08.3 DC power system market in EMEA

08.3.1 Market size and forecast

08.4 DC power system market in APAC

08.4.1 Market size and forecast

09. Buying Criteria

09.1 Parameters

09.1.1 Reliability

09.1.2 Maintenance and support

09.1.3 Total cost of ownership

10. Market Growth Drivers

11. Drivers and their Impact

12. Market Challenges

13. Impact of Drivers and Challenges

14. Market Trends

15. Trends and their Impact

16. Vendor Landscape

16.1 Competitive scenario

16.1.1 Key news

16.1.2 Mergers and acquisitions

16.2 Market share analysis 2014

16.3 Other prominent vendors

17. Key Vendor Analysis

17.1 Eltek

17.1.1 Key facts

17.1.2 Business overview

17.1.3 Geographical segmentation by revenue 2014

17.1.4 Business strategy

17.1.5 Recent developments

17.1.6 SWOT analysis

17.2 Emerson Network Power

17.2.1 Key facts

17.2.2 Business overview

17.2.3 Business strategy

17.2.4 Recent developments

17.2.5 SWOT analysis

17.3 GE

17.3.1 Key facts

17.3.2 Business overview

17.3.3 Business segmentation by revenue 2014

17.3.4 Business segmentation by revenue 2013 and 2014

17.3.5 Geographical segmentation by revenue 2014

17.3.6 Business strategy

17.3.7 Recent developments

17.3.8 SWOT analysis

17.4 Huawei

17.4.1 Key facts

17.4.2 Business overview

17.4.3 Business segmentation by revenue 2014

17.4.4 Business segmentation by revenue 2013 and 2014

17.4.5 Geographical segmentation by revenue 2014

17.4.6 Business strategy

17.4.7 Recent developments

17.4.8 SWOT analysis

18. Other Reports in this Series