Single-Port PSEs Put Power in More Places
A highly integrated single-port controller simplifies PSE design and enables novel implementations such as a wall-plug-powered PSE or a "power forwarder" that powers more than one device off a single port...
Understanding the various causes and characteristics
of electrical transients enables designers
to safeguard PoE systems from these events with
discrete protection circuitry....
Key details of the IEEE802.3at standard, which is
to be ratified next year,
are available now for designers looking to take advantage of the nearly
60 W allowed to power PDs....
Since the ratification of the IEEE 802.3af standard nearly four years ago, Power over Ethernet (PoE) technology has seen widespread deployment. Through...
Thanks to IEEE 802.3af, Ethernet data transmission lines may now conduct a specified amount of power. Enabling PoE brings a variety of advantages and...
At the upcoming Applied Power Electronics Conference and Exposition (APEC), which will be held March 19-23 in Dallas, several power semiconductor vendors...
IC Combines PoE Power Control, Power Conversion National Semiconductor's LM5070 simplifies the design of IEEE-802.3af-compliant powered devices for Power over Ethernet by combining PD interface and power conversion functions in one chip....
Power over Ethernet (PoE), a technology for the delivery of power and Ethernet data on the same cabling, has been around in various forms for almost four...
The IEEE 802.3af standard for Power over Ethernet (PoE) introduces a new facet to Ethernet networking. Most additions to the 802.3 standard are in the...
The IEEE 802.3af Power over Ethernet (PoE) standard was ratified last year. This standard defined the protocols for safely distributing 48-Vdc power over...
PoE will enable the development of many universally interchangeable application devices by superceding the various proprietary solutions in the marketplace....
Standards play a key role in stimulating new products in emerging markets. When IEEE ratifies the power over Ethernet Standard IEEE 802.3af, it will give voice-over Internet protocol or IP telephones, wireless LAN access points, Web cameras, and similar devices a much needed impetus....
This month at the Power Electronics Technology website, a special section on power over Ethernet presents a series of articles addressing different aspects of PoE design. ...
The LTC4263 from Linear Technology is a single-chip Power over Ethernet solution for a Power Sourcing Equipment controller that is compliant with IEEE 802.3af....
The ongoing trend toward consolidation in the power electronics industry continues unabated as indicated by recent announcements from power semiconductor and power system suppliers. ...
Microsemi has entered into a definitive agreement to acquire PowerDsine. With this acquisition, Microsemi expands its portfolio of product offerings to include a broad range of Power over Ethernet solutions and enhances its analog and mixed signal design capabilities. ...
Phihong USA supported the motion passed at the May 23, 2006 IEEE802.3at committee meeting to set the output voltage for power sourcing equipment to 50 V to 57V. ...
PowerDsine, a provider of PoE solutions, has granted Tyco Electronics of Middletown, Pennsylvania a license to use its U.S. Patent Number 6,473,608 in connection with the manufacture and sale of midspan PoE products. ...
PowerDsine has released the PD83000, a new high-power PoE controller for next-generation Ethernet devices. Combined with the 4- or 12-port PD64004A or PD64012G, up to 48 high power ports can be provided from a single system. ...
A series of high efficiency, small footprint, off-the-shelf power transformers from Pulse for powered device side power over Ethernet products meet IEEE standard 802.3af. ...
