WO2015119623A3 - Power sourcing equipment - Google Patents

Power sourcing equipment Download PDF

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Publication number
WO2015119623A3
WO2015119623A3 PCT/US2014/015378 US2014015378W WO2015119623A3 WO 2015119623 A3 WO2015119623 A3 WO 2015119623A3 US 2014015378 W US2014015378 W US 2014015378W WO 2015119623 A3 WO2015119623 A3 WO 2015119623A3
Authority
WO
WIPO (PCT)
Prior art keywords
power
pse
power sourcing
sourcing equipment
delivery method
Prior art date
Application number
PCT/US2014/015378
Other languages
French (fr)
Other versions
WO2015119623A2 (en
Inventor
James S Hiscock
David Law
Original Assignee
Hewlett-Packard Development Company, L.P.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hewlett-Packard Development Company, L.P. filed Critical Hewlett-Packard Development Company, L.P.
Priority to PCT/US2014/015378 priority Critical patent/WO2015119623A2/en
Publication of WO2015119623A2 publication Critical patent/WO2015119623A2/en
Publication of WO2015119623A3 publication Critical patent/WO2015119623A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/40006—Architecture of a communication node
    • H04L12/40045—Details regarding the feeding of energy to the node from the bus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/10—Current supply arrangements

Abstract

Example implementations relate to supplying power based on a power over Ethernet protocol. For example, a first apparatus may include a first PSE and a second PSE at one end of an Ethernet cable and a second apparatus may include a first PD and a second PD at the other end of the Ethernet cable. In response to a detection of a presence of at least one PD, the first apparatus may inquire the second apparatus about the at least one PD regarding power requirements, number, and type of PDs requesting power. Based on that information, the first apparatus may supply at least one power source using either the single pair delivery method, the two pair delivery method, or a combination thereof. In some examples, a central controller may instruct the first apparatus to modify the power delivery configuration based on changing PD needs of the second apparatus.
PCT/US2014/015378 2014-02-07 2014-02-07 Power sourcing equipment WO2015119623A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2014/015378 WO2015119623A2 (en) 2014-02-07 2014-02-07 Power sourcing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2014/015378 WO2015119623A2 (en) 2014-02-07 2014-02-07 Power sourcing equipment

Publications (2)

Publication Number Publication Date
WO2015119623A2 WO2015119623A2 (en) 2015-08-13
WO2015119623A3 true WO2015119623A3 (en) 2015-12-23

Family

ID=53778581

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2014/015378 WO2015119623A2 (en) 2014-02-07 2014-02-07 Power sourcing equipment

Country Status (1)

Country Link
WO (1) WO2015119623A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10423205B2 (en) 2015-07-29 2019-09-24 Texas Instruments Incorporated Voltage transition control for USB power delivery sources
US10498167B2 (en) 2016-06-08 2019-12-03 Texas Instruments Incorporated Multi-port power delivery
CN108134677B (en) * 2016-12-01 2020-08-14 九旸电子股份有限公司 Power supply device of Ethernet power supply system
US10476394B2 (en) 2016-12-28 2019-11-12 Texas Instruments Incorporated Dynamic learning of voltage source capabilities

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060168459A1 (en) * 2005-01-25 2006-07-27 Dwelley David M Providing data communication between power supply device and powered device in system for supplying power over communication link
US20090001956A1 (en) * 2006-07-25 2009-01-01 Silicon Laboratories Inc. Powered device including a multi-use detection resistor
US20130057056A1 (en) * 2004-11-03 2013-03-07 Cisco Technology, Inc. Powered device classification in a wired data telecommunications network
US20130117581A1 (en) * 2011-11-09 2013-05-09 Vaibhav S. Katkade Power negotiation protocol
US20130113275A1 (en) * 2011-10-24 2013-05-09 Linear Technology Corporation Switching of conductor pair in power over ethernet system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130057056A1 (en) * 2004-11-03 2013-03-07 Cisco Technology, Inc. Powered device classification in a wired data telecommunications network
US20060168459A1 (en) * 2005-01-25 2006-07-27 Dwelley David M Providing data communication between power supply device and powered device in system for supplying power over communication link
US20090001956A1 (en) * 2006-07-25 2009-01-01 Silicon Laboratories Inc. Powered device including a multi-use detection resistor
US20130113275A1 (en) * 2011-10-24 2013-05-09 Linear Technology Corporation Switching of conductor pair in power over ethernet system
US20130117581A1 (en) * 2011-11-09 2013-05-09 Vaibhav S. Katkade Power negotiation protocol

Also Published As

Publication number Publication date
WO2015119623A2 (en) 2015-08-13

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