Author - Dave Dwelley

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Dave Dwelley	Write for Electronic Design
Dave Dwelley is a design center manager at Linear Technology’s Santa Barbara design center. He holds a BS in engineering from the University of California at Berkeley. Email address: ddwelley@linear.com Web site: http://www.linear.com/
2 results found for Dave Dwelley, displaying items 1 - 2

March 17, 2005 [POV: Point Of View]
POE+: Which Road Leads To High Power Over Ethernet?
Almost as soon as the IEEE 802.3af Power-over-Ethernet standard was released, users started clamoring for more power. Thirteen watts is adequate for basic IP phones, but motorized cameras, multiradio access points, and devices with large color screens are seriously constrained. The fact that (under ideal conditions) typical CAT-5 cabling tolerates much higher current levels than the standard allows has led adventurous manufacturers to develop ad-hoc techniques to deliver extra power...

October 27, 2003 [Design View / Design Solution]
Banish Those "Wall Warts" With Power Over Ethernet
The new Power-over-Ethernet (PoE) standard, IEEE-802.3af, will free wireless access points from ac outlets and allow a central uninterruptible power supply (UPS) to service an entire IP telephone installation. It also means bringing Ethernet into...