Notwithstanding its infancy, wireless mesh networking (WMN) is a hot and
growing field. Wireless mesh networks began in the military, but have since
become of great interest for commercial use in the last decade, both in local
area networks and metropolitan area networks. The attractiveness of mesh
networks comes from their ability to interconnect either mobile or fixed
devices with radio interfaces, to share information dynamically, or simply to
extend range through multi-hopping.
European Research Framework programs are public policy instruments designed
to strengthen European competitiveness through cooperation. Although they have
a fixed time frame, determined research themes, and a specific expected impact,
the achievements in research and development (R&D) made by these funded proj-
ects pave the way for a research continuum.
European Research Framework Programs are a public policy instrument to
strengthen European competitiveness through cooperation. Although they have a
fixed timeframe, determined research themes, and specific expected impact, the
achievements in research and development (R&D) made by the funded projects
pave the way for a research continuum.
The book is written for those concerned with the design and performance of satellite
communications systems employed in fixed point-to-point, broadcasting, mobile, radio-
navigation,data-relay,computercommunications,andrelatedsatellite-basedapplications.The
recentrapidgrowthinsatellitecommunicationshascreatedaneedforaccurateinformationon
both satellite communications systems engineering and the impact of atmospheric effects on
satellite link design and system performance. This book addresses that need for the first time
in a single comprehensive source.
When thinking about mobile radio engineers there is a tendency to
assume that the engineering function relates solely to the technical
aspects of the network, such as the equipment design or the network
design. That is certainly a key part of the role of a mobile radio engineer.
However,increasinglyengineersarerequiredtointeractwithprofession-
als from other divisions. The “complete wireless professional” should
know about mobile networks; fixed networks; other types of mobile
systems; regulatory and government policy; the requirements of the
users; and financial, legal, and marketing issues.
Notwithstanding its infancy, wireless mesh networking (WMN) is a hot and
growing field. Wireless mesh networks began in the military, but have since
become of great interest for commercial use in the last decade, both in local
area networks and metropolitan area networks. The attractiveness of mesh
networks comes from their ability to interconnect either mobile or fixed
devices with radio interfaces, to share information dynamically, or simply to
extend range through multi-hopping.
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Wide 2.2V to 6V Input Voltage Range
? 0.20V FB adjustable LED drive current
? Directly drive 9 Series 1W LED at
VIN>=6V
? fixed 800KHz Switching Frequency
? Max. 3A Switching Current Capability
? Up to 92% efficiency
? Excellent line and load regulation
? EN PIN TTL shutdown capability
? Internal Optimize Power MOSFET
2.7V to 5.5V input voltage Range? Efficiency up to 96%
? 24V Boost converter with 12A switch
current Limit? 600KHz fixed Switching Frequency? Integrated soft-start? Thermal Shutdown? Under voltage Lockout? Support external LDO auxiliary power
supply? 8-Pin SOP-PP PackageAPPLICATIONSPortable Audio Amplifier Power SupplyPower BankQC 2.0/Type CWireless ChargerPOS Printer Power SupplySmall Motor Power Supply
The PW5200A/ PW5200C is high efficiency synchronous, PWM step-up DC/DC converters optimizedto provide a high efficient solution to medium power systems. The devices work with a 1.4MHz fixedfrequency switching. These features minimize overall solution footprint by allowing the use of tiny,low profile inductors and ceramic capacitors. Automatic PWM/PFM mode switching at light loadsaves power and improves efficiency
