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AC-DC Power Supplies Global Market Forecasts and Competitive Environment Eighth Edition
Darnell Group, Jan 2006
Traditionally, the embedded ac-dc power supply market is one of the more staid segments in the power electronics industry. However, several divergent trends are creating a number of opportunities and threats. The ongoing rise of the consumer device market is driving increasing unit sales, but at the same time bringing down the average selling price of power supplies. Additionally, the consumer devices market is shifting from captive production to merchant production. Delta Electronics, the embedded ac-dc power supply market share leader, experienced growth of 43% during 2005, partially as a result of a growing focus on providing power supplies for markets that have traditionally been captive production. Many other companies are following a similar path.
As a result of the rise of the consumer market, and because of its shift from captive to merchant production, forecasts for both the merchant and merchant/captive markets are provided in this report. Combined worldwide merchant and captive embedded ac-dc power supply units sales are expected to rise from 890.8 million units in 2006 to 1,134.4 million units in 2011, an annualized growth rate of 5.0%. During the same period, merchant revenue is projected to rise from $11.2 billion to $14.8 billion, at an annualized rate of 5.8%.
In addition to consumer devices, there are several applications and technical trends that are expected to drive the embedded ac-dc power supply market. Within the computer segment, Intel's focus on dual core processors and the move towards the BTX will slow down desktop PCs' continual rise to higher wattages. Blade servers are diminishing enterprise server and traditional server growth, but are providing greater revenue opportunities because they are higher wattage power supplies that require more advanced features, including redundancy and hot-swap ability. The computer storage market is also providing strong growth, as companies' data storage needs increase because of financial regulations and the growing broadband content provided on the web. The communications market is undergoing its own transformation as Voice-over Internet Protocol (VoIP) drives opportunities for Power-over-Ethernet (PoE) and Customer Premises Equipment. Additional communications opportunities can be found as cable operators and traditional telecom carriers duel over triple-play services. Set-top-box sales will remain one of the largest and fastest-growing communications applications.
Smaller niche markets are also providing strong growth. Industrial is benefiting from continued rise of China. Light emitting diodes for signage are also providing growth drivers for ac-dc power supply makers outside of the traditional 'three-C' markets of Computers, Communications and Consumer. Power supplies for the medical market are seeing a boom driven by the 'consumerization' of medical devices trend. Counter intuitively, the Military/Aerospace market is seeing slower growth than it has in recent years, as military budgets are drawn thin by the prolonged military presence in Iraq and Afghanistan. In order to best describe the multitude of application trends that are driving the embedded ac-dc power supply market, 25 distinct applications are forecasted in four regions and worldwide.
Power levels continue to rise, particularly as servers migrate to blade servers and applications such as PoE gain steam. The potential move to PoE-Plus, which is expected to at least double the power PoE offers, will significantly increase the power level of these devices. Additionally, the move towards the distributed power architectures and, more specifically, the Intermediate Bus Architecture, has created increasing demand for ac-dc front ends. This results in a greater share of rack-mounted power supplies and also brings up the average wattage of power supplies. DIN-Rail power supplies, while still a small market worldwide, are slowly gaining share in North America as companies such as Lambda Electronics have brought this predominately European package to the North America and Asia markets. Also, as the Consumer market becomes more merchant, there has been a growing demand for standard-designed power supplies.
The increasing use of higher wattage power supplies, particularly in the broad computer market, is placing increasing focus on the efficiency of embedded ac-dc power supplies. The US's Environmental Protection Agency's Energy Star Program has already enacted voluntary efficiency standards for external power supplies, and Energy Star has begun to focus on embedded power supplies by drafting applications standards that include specifications for the power supply in use. However, driven by regulation or not, the current economic condition requires a move towards more efficient power supplies. Similarly, power factor correction is increasingly being used as the average wattage level of applications increase.
The move towards digital power control and conversion remains in its infancy, but is beginning to play a role in the ac-dc power supply market. While dc-dc converters have received the majority of the attention, a number of digitally controlled ac-dc front ends have come to market that will have implications for future power supply design.
Regionally, Asia and China have become a much larger share of the embedded power supply market, especially as the sales of consumer devices have grown. However, North America and Europe remain large markets, especially for power supplies for higher-end applications, typically with higher wattages. As a result, these two regions maintain strong revenue opportunities, despite slower-growing unit sales.
While the broad economic picture and application trends provide promise for ac-dc power supply makers, the economic trends of the power supply market itself poses greater threats. The market has recently entered a period of consolidation, especially for the major players. Within the last year, three of the top five power supply companies have been involved in major acquisitions. These mergers give the new companies greater economies of scale. As a result, while the ac-dc power supply market is still serviced by hundreds if not thousands of companies, market share of the largest few continues to grow. This is an increasing threat to the other power suppliers in the market and may necessitate more consolidation in an attempt to level the playing field. To capture all of the dynamics in the embedded ac-dc power supply, detailed profiles of more than 40 companies are provided. Additionally, market shares for each of the top-five companies Worldwide and in North America, Europe, and Asia are given.
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