Public telephone operators and new independent wireless operators through-
out the world are deploying wireless access in an effort to drastically reduce
delivery costs in the most expensive part of the network?the local loop.
Available radio technology enables both existing and new entrants to access
subscribers in a rapid manner and deliver their basic telephony products and
broadband-enhanced services.
Broadband powerline communication systems are continuing to gain significant
market adoption worldwide for applications ranging from IPTV delivery to the
Smart Grid. The suite of standards developed by the HomePlug Powerline
Alliance plays an important role in the widespread deployment of broadband
PLC. To date, more than 100 million HomePlug modems are deployed and these
numbers continue to rise.
This is a practical book, to be sure, but it is also a book about hope and posi-
tive change. I am quite sincere. The delivery of electricity is deeply rooted
in the principle of universal access; when clean, reliable energy is available it
contributes to poverty alleviation, improved social conditions, and enhanced
economic development. In the developed world, we know this to be true. The
digital fabric of our lives is a testimony to the importance of energy security.
Across the globe, we have seen the vital contributions that electrification has
brought to the development of economies and an enhanced quality of life.
Nonetheless, this supreme engineering achievement has languished, and we are
deeply challenged.
n its Framework and Roadmap for Smart Grid Interoperability Standards, the US
National Institute of Standards and Technology declares that a twenty-first-century
clean energy economy demands a twenty-first-century electric grid. 1 The start of the
twenty-first century marked the acceleration of the Smart Grid evolution. The goals
of this evolution are broad, including the promotion of widespread and distributed
deployment of renewable energy sources, increased energy efficiency, peak power
reduction, automated demand response, improved reliability, lower energy delivery
costs, and consumer participation in energy management.
Electric distribution networks are critical parts of power delivery systems. In recent
years, many new technologies and distributed energy resources have been inte-
grated into these networks. To provide electricity at the possible lowest cost and at
required quality, long-term planning is essential for these networks. In distribution
planning, optimal location and size of necessary upgrades are determined to satisfy
the demand and the technical requirements of the loads and to tackle uncertainties
associated with load and distributed energy resources.
IP2716是一款集成USB TYPE-C輸入輸出協議、USB Power
delivery（PD3.0）輸入輸出協議、QC3.0/2.0輸出快充協議（兼容DCP識別功能，兼容BC1.2、蘋果和三星手機）等多功能。高集成度與豐富功能，使其在應用時僅需極少的外圍器件。如果原有的普通方案輸出功率和輸出電壓范圍滿足需求，只需額外增加外擴的功率MOS就可以實現在原有方案的基礎上升級為支持TYPE-C、PD3.0、QC3.0/2.0的高級快充方案。適當提升DC-DC或AC-DC元件性能，可以輕松實現最高100W（20V
5A）輸出能力，為移動電源、適配器、車充提供完整的TYPE-C解決方案。
VME has been the de-facto bus standard for Commercial off the Shelf(COTS ) Circuit Card Assemblies since the 1980's. VME boards have proven to be remarkably capable of evolving to support newer technologies with innovations such as VME Subsystem Bus, PCI Mezzanine Cards(PMC's) and VME320.However, advances in technologies, appearing particularly in interconnects, have demonstratedthe need for an advance in system development. This advance needs to accommodate high speed interconnect, particularly serial interconnects, and higher power delivery in concert with better heat removal.
