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WO2016058034A1 - Ethernet standby power supply - Google Patents

Ethernet standby power supply Download PDF

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Publication number
WO2016058034A1
WO2016058034A1 PCT/AU2015/000622 AU2015000622W WO2016058034A1 WO 2016058034 A1 WO2016058034 A1 WO 2016058034A1 AU 2015000622 W AU2015000622 W AU 2015000622W WO 2016058034 A1 WO2016058034 A1 WO 2016058034A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
ethernet
poe
battery
interface
Prior art date
Application number
PCT/AU2015/000622
Other languages
French (fr)
Inventor
Scott Robinson
Graham Favell
Shen Tang (Tom)
Original Assignee
Scott Robinson
Graham Favell
Tang Shen Tom
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 Scott Robinson, Graham Favell, Tang Shen Tom filed Critical Scott Robinson
Publication of WO2016058034A1 publication Critical patent/WO2016058034A1/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
    • H04L12/407—Bus networks with decentralised control
    • H04L12/413—Bus networks with decentralised control with random access, e.g. carrier-sense multiple-access with collision detection [CSMA-CD]
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

Definitions

  • Ethernet devices there are many Ethernet devices in use where uninterruptible operation and stable operation are crucial.
  • Devices such as IP Network cameras for CCTV use, and Mesh style Wireless Access Points provide critical security and connectivity services respectively in many locations.
  • UPS uninterruptible power supply
  • PoE Power over Ethernet
  • point-source replaceable batteries such as the Veracity Pointsource, ref. Veracity
  • solar panels are alternate but not necessarily practical or economic solutions.
  • Power over Ethernet or PoE describes any of several standardized or ad-hoc systems which pass electrical power along with data on Ethernet cabling. This allows a single cable to provide both data connection and electrical power to Ethernet devices (ref. Wikipedia). Standardized PoE typically refers to a set of IEEE Standards that describe techniques for transmitting power over Ethernet cabling. Ad-hoc PoE refers to any other technique for achieving the same result. Collectively they are known as PoE, or Power over Ethernet.
  • PoE provides power to Ethernet network devices by using the same wires in the cable to carry power simultaneously with data between an Ethernet Power Supply Equipment (PSE) device, such as an Ethernet Router or Switch, and the Ethernet Powered Device (PD), such as an IP Camera or IP Wireless Access Point, however, Ethernet is capable of carrying a wider range of protocols than just IP (Internet Protocol), including NetBIOS, AppleTalk and IPX.
  • PSE Power Supply Equipment
  • PD Ethernet Powered Device
  • IP Internet Protocol
  • IPX IP Wireless Access Point
  • a shortcoming with the above scenario is that in the event of a breakage in the cabling between the PSE and the PDs, a loss of power is experienced at the PD.
  • Two typical scenarios can illustrate this are where a maintenance activity damages the cable, and where a deliberate act of damage is occasioned on the cable in order to disable the device.
  • An example of the second scenario would be an intruder attempting to damage the cabling to disable CCTV monitoring cameras.
  • the disclosed device helps to solve these shortcomings.
  • the disclosed device is an Ethernet PD device that provides an uninterruptible power supply to another Ethernet device that must be protected from power loss in order to continue functioning.
  • the disclosed device is inserted between the original PSE devise and the original PD device, and is designed to use the supplied PoE power to charge and maintain an included battery while ensuring the original PD device continues to receive adequate power.
  • the disclosed device continues to supply power to the original PD device to enable it to continue functioning.
  • the disclosed device is located physically adjacent to the device to be protected from PSE PoE loss or failure.
  • Mode (A) as shown in Fig.l supplies a DC (Direct Current) source of power for the protected device.
  • DC Direct Current
  • this supports Ethernet, and also non-Network connected devices that are not equipped with a natural interface for POE, but use a DC connector as their power source interface.
  • An example of a non- Network connected device is a Wireless Camera such as the DLINK-930L (ref. D-Link); here the purpose for using the disclosed device is to provide power to the Camera without the requirement for Utility power to be located near the Camera, which in many jurisdictions globally must be installed only by a Licensed Contractor in that jurisdiction.
  • the DC voltage may be offered in one single voltage level for a particular purpose (for example, 5Volts as with the DLINK- 930L), or the DC voltage may be selectable from a set of two or more discreet voltages so as to support multiple equipment (for example, many IP cameras require 12Volts DC).
  • Mode (B) operation as shown in Fig.2, of the disclosed device supplies PoE power to the protected device.
  • power is injected into the secondary Ethernet interface to be combined with the Data signals and this combined Power and Data are supplied simultaneously to the FU45 interface.
  • power and data are delivered to the protected device, with the disclosed device effectively transparent in operation.
  • Mode (C) operation combines the DC power output interface of Mode (A) and the PoE output interface of Mode (B) into one device to provide a universal device for multiple-purpose deployment of the device.
  • the disclosed device decouples the power from the data signal on the input interface, through a PoE splitter.
  • a PoE splitter separates the input power and data entering the connected RJ45 interface from the PSE, and may include voltage-change cirtuit to raise or lower the incoming power voltage level to an alternative voltage suitable for the disclosed devices' internal circuitry and battery charging requirements.
  • the input power is monitored by the input power monitoring module for the parameters (1) availability and (2) voltage level, and this information is passed to the input-display module for driving a display to indicate the input power status. Simultaneously, this information is delivered to the battery charging and discharging control module.
  • the separated power when power is available from the input interface, is delivered to the battery and battery protection circuit module by way of the battery charging and discharging control module which controls the charging and discharging of the battery. If the battery is receiving more power than it is delivering, it is said to be Charging, and accumulating power.
  • the battery is connected to the Power Voltage Regulator and Voltage-change module through the Battery Charge and Discharge control module.
  • the Output Voltage-change module changes the voltage level from the battery to a DC level required by the output interface. Typically for a DC connected interface this will be a DC voltage up to 50Volts, or typically for an IEEE 802.3af categorised PoE injector style output the voltage will be 57Volts.
  • the Battery Charge and Discharge module comprises circuitry to ensure correct charging and discharging of the battery, compatible with the electrochemical composition and characteristics of the said battery, which must be a rechargeable type.
  • said battery is Lithium Ion (LiOn) or Lithium Polymer (LiPo) type for the purpose of achieving compact sizing; however other rechargeable battery technologies will be functional, including those typically referred to as Lead Acid, Sealed Lead Acid and Gel Cell.
  • the Power Source Monitoring and Display Control module includes a microcontroller module; said microcontroller module function is to monitor the Battery Charge and Discharge module for Battery parameters including charging or discharging status and voltage level; said microcontroller module processing these parameters and passing data to the Display Module.
  • Ethernet is a family of computer networking technologies for local area (LAN) and larger networks.
  • IP Camera is a family of computer networking technologies for local area (LAN) and larger networks.
  • IP camera is a type of digital video camera commonly employed for surveillance, and which unlike analog closed circuit television (CCTV) cameras can send and receive data via a computer network and the Internet.
  • CCTV closed circuit television
  • a lithium-ion battery (sometimes Li-ion battery or LIB) is a member of a family of rechargeable battery types in which lithium ions move from the negative electrode to the positive electrode during discharge and back when charging.
  • Lithium Polymer LiPo
  • a lithium polymer battery or more correctly lithium-ion polymer battery (abbreviated variously as LiPo, LIP, Li-poly and others), is a rechargeable battery of lithium-ion technology in a pouch format.
  • Power over Ethernet or PoE describes any of several standardized or ad-hoc systems which pass electrical power along with data on Ethernet cabling.
  • a PoE Injector is used to combine power and data over an outgoing network cable.
  • UPS Uninterruptible Power Supply
  • An uninterruptible power supply also uninterruptible power source, UPS or battery/flywheel backup, is an electrical apparatus that provides emergency power to a load when the input power source, typically mains power, fails.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Small-Scale Networks (AREA)

Abstract

The invention discloses an Ethernet standby power supply device, involving power supply device technology. Said standby power device includes power monitoring and the display module, for monitoring input power, display of power state and the value of input power, and of battery for charging or discharge control; battery and the protection circuit module, for receiving power monitoring and the display module for output power, battery for charging or discharge; power output regulator and the voltage-change module, and a connected DC interface to supply power to an IP device for Ethernet or Power-over-Ethernet (PoE). By using the standby power supply module with IP device for Ethernet or PoE devices provides an uninterruptable power supply, and improves the stability of equipment operation.

Description

Ethernet Standby Power Supply
Description
There are many Ethernet devices in use where uninterruptible operation and stable operation are crucial. Devices such as IP Network cameras for CCTV use, and Mesh style Wireless Access Points provide critical security and connectivity services respectively in many locations. In many cases these devises are supplied reliable and continuous power from some type of uninterruptible power supply (UPS). Where collocating a UPS with the critical network device is impractical, such as where providing mains power is inconvenient, uneconomical or dangerous, the use of Power over Ethernet (PoE) is usually employed, however point-source replaceable batteries (such as the Veracity Pointsource, ref. Veracity) or solar panels are alternate but not necessarily practical or economic solutions.
Power over Ethernet or PoE describes any of several standardized or ad-hoc systems which pass electrical power along with data on Ethernet cabling. This allows a single cable to provide both data connection and electrical power to Ethernet devices (ref. Wikipedia). Standardized PoE typically refers to a set of IEEE Standards that describe techniques for transmitting power over Ethernet cabling. Ad-hoc PoE refers to any other technique for achieving the same result. Collectively they are known as PoE, or Power over Ethernet.
PoE provides power to Ethernet network devices by using the same wires in the cable to carry power simultaneously with data between an Ethernet Power Supply Equipment (PSE) device, such as an Ethernet Router or Switch, and the Ethernet Powered Device (PD), such as an IP Camera or IP Wireless Access Point, however, Ethernet is capable of carrying a wider range of protocols than just IP (Internet Protocol), including NetBIOS, AppleTalk and IPX. To provide uninterruptible and stable operation the PSE is typically powered from an Uninterruptible Power Supply (UPS). This ensures that in the event of a mains power loss to the PSE, the PDs will still remain operational.
A shortcoming with the above scenario is that in the event of a breakage in the cabling between the PSE and the PDs, a loss of power is experienced at the PD. Two typical scenarios can illustrate this are where a maintenance activity damages the cable, and where a deliberate act of damage is occasioned on the cable in order to disable the device. An example of the second scenario would be an intruder attempting to damage the cabling to disable CCTV monitoring cameras. The disclosed device helps to solve these shortcomings.
The disclosed device is an Ethernet PD device that provides an uninterruptible power supply to another Ethernet device that must be protected from power loss in order to continue functioning. The disclosed device is inserted between the original PSE devise and the original PD device, and is designed to use the supplied PoE power to charge and maintain an included battery while ensuring the original PD device continues to receive adequate power. In the event of a loss of power from the original PSE device, through a scenario as described above or other fault, the disclosed device continues to supply power to the original PD device to enable it to continue functioning. Thus typically the disclosed device is located physically adjacent to the device to be protected from PSE PoE loss or failure.
The disclosed device operates in two distinct modes plus a combined mode. Mode (A) as shown in Fig.l supplies a DC (Direct Current) source of power for the protected device. Advantageously this supports Ethernet, and also non-Network connected devices that are not equipped with a natural interface for POE, but use a DC connector as their power source interface. An example of a non- Network connected device is a Wireless Camera such as the DLINK-930L (ref. D-Link); here the purpose for using the disclosed device is to provide power to the Camera without the requirement for Utility power to be located near the Camera, which in many jurisdictions globally must be installed only by a Licensed Contractor in that jurisdiction. Furthermore, the DC voltage may be offered in one single voltage level for a particular purpose (for example, 5Volts as with the DLINK- 930L), or the DC voltage may be selectable from a set of two or more discreet voltages so as to support multiple equipment (for example, many IP cameras require 12Volts DC).
Mode (B) operation, as shown in Fig.2, of the disclosed device supplies PoE power to the protected device. In this mode of operation, power is injected into the secondary Ethernet interface to be combined with the Data signals and this combined Power and Data are supplied simultaneously to the FU45 interface. In this mode, power and data are delivered to the protected device, with the disclosed device effectively transparent in operation.
Mode (C) operation, as shown in Fig.3, combines the DC power output interface of Mode (A) and the PoE output interface of Mode (B) into one device to provide a universal device for multiple-purpose deployment of the device.
To provide the Unteruptible power function, the disclosed device decouples the power from the data signal on the input interface, through a PoE splitter. A PoE splitter separates the input power and data entering the connected RJ45 interface from the PSE, and may include voltage-change cirtuit to raise or lower the incoming power voltage level to an alternative voltage suitable for the disclosed devices' internal circuitry and battery charging requirements. The input power is monitored by the input power monitoring module for the parameters (1) availability and (2) voltage level, and this information is passed to the input-display module for driving a display to indicate the input power status. Simultaneously, this information is delivered to the battery charging and discharging control module.
The separated power, when power is available from the input interface, is delivered to the battery and battery protection circuit module by way of the battery charging and discharging control module which controls the charging and discharging of the battery. If the battery is receiving more power than it is delivering, it is said to be Charging, and accumulating power.
Simultaneously, the battery is connected to the Power Voltage Regulator and Voltage-change module through the Battery Charge and Discharge control module. The Output Voltage-change module changes the voltage level from the battery to a DC level required by the output interface. Typically for a DC connected interface this will be a DC voltage up to 50Volts, or typically for an IEEE 802.3af categorised PoE injector style output the voltage will be 57Volts. The Battery Charge and Discharge module comprises circuitry to ensure correct charging and discharging of the battery, compatible with the electrochemical composition and characteristics of the said battery, which must be a rechargeable type. Preferably, said battery is Lithium Ion (LiOn) or Lithium Polymer (LiPo) type for the purpose of achieving compact sizing; however other rechargeable battery technologies will be functional, including those typically referred to as Lead Acid, Sealed Lead Acid and Gel Cell.
The Power Source Monitoring and Display Control module includes a microcontroller module; said microcontroller module function is to monitor the Battery Charge and Discharge module for Battery parameters including charging or discharging status and voltage level; said microcontroller module processing these parameters and passing data to the Display Module.
Glossary
Ethernet
Ethernet is a family of computer networking technologies for local area (LAN) and larger networks. IP Camera
An Internet protocol camera, or IP camera, is a type of digital video camera commonly employed for surveillance, and which unlike analog closed circuit television (CCTV) cameras can send and receive data via a computer network and the Internet.
Lithium Ion, Li-Ion
A lithium-ion battery (sometimes Li-ion battery or LIB) is a member of a family of rechargeable battery types in which lithium ions move from the negative electrode to the positive electrode during discharge and back when charging.
Lithium Polymer, LiPo
A lithium polymer battery, or more correctly lithium-ion polymer battery (abbreviated variously as LiPo, LIP, Li-poly and others), is a rechargeable battery of lithium-ion technology in a pouch format.
Power over Ethernet, PoE
Power over Ethernet or PoE describes any of several standardized or ad-hoc systems which pass electrical power along with data on Ethernet cabling.
PoE Injector
A PoE Injector is used to combine power and data over an outgoing network cable.
PoE Splitter
A PoE splitter is used to separate power and data coming over the network cable. Uninterruptible Power Supply , UPS
An uninterruptible power supply, also uninterruptible power source, UPS or battery/flywheel backup, is an electrical apparatus that provides emergency power to a load when the input power source, typically mains power, fails.
References
D-Link, nd. D-Link Products - DCS-930L. Retrieved April 2014 from
http://mydlink.dlink.com/products/DCS-930L
Veracity, nd. Portable POE Injector Battery Pack for IP Cameras. Retrieved April 2014 from http://veracityglobal.com/products/ip-camera-installation-tools/pointsource.aspx
Wikipedia, nd. Power over Ethernet. Retrieved April 2014 from
http://en.wikipedia.org/wiki/Power_over_Ethernet

Claims

Claims
1. An Ethernet standby power supply device, said standby power supply device including power monitoring and display module, for monitoring input of power, display of power status and the input power value, and display of the battery charging and discharging control; battery and battery protection circuit module; power monitoring and display module for output power; and a power output regulator and voltage-change module; said Ethernet standby power supply device receiving input power via an included Ethernet interface and Power-over-Ethernet (PoE) separation module, with Ethernet data signal path pass-through to another connected Ethernet interface.
2. The device in Claim 1, wherein the output power is delivered from a connected DC interface, with said output power being characterised by a singular voltage; said singular voltage restricted by the device or selectable from a range of discreet voltages by a selection mechanism.
3. The device in Claim 1, wherein the output power is delivered from the connected Ethernet egress interface and Power Over Ethernet (PoE) injector device.
4. The device in Claim 1, wherein the device includes DC connected interface as in Claim 2 and the PoE characterized interface as in Claim 3.
5. The device in Claims 1 - 4 where the PoE is characterized by IEEE 802.3AF or IEEE 802.3AT.
PCT/AU2015/000622 2014-05-12 2015-10-16 Ethernet standby power supply WO2016058034A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201420244071.1U CN203859758U (en) 2014-05-12 2014-05-12 Ethernet backup power supply module, device and system
AU2014101258A AU2014101258A4 (en) 2014-05-12 2014-10-16 Ethernet Standby Power Supply
AU2014101258 2014-10-16

Publications (1)

Publication Number Publication Date
WO2016058034A1 true WO2016058034A1 (en) 2016-04-21

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AU (1) AU2014101258A4 (en)
WO (1) WO2016058034A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106655478A (en) * 2017-01-25 2017-05-10 云南水务投资股份有限公司 Low-voltage emergency safety power supply system of household garbage power plant and control method of system
CN110612502A (en) * 2017-04-26 2019-12-24 维谛信息技术系统有限公司 Dongle with power supply based on rechargeable supercapacitors
IT202200004808A1 (en) * 2022-03-14 2023-09-14 9 Dot S R L PoE POWER INJECTOR

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104038350A (en) * 2014-05-12 2014-09-10 东莞市钜佳电子有限公司 Ethernet backup power supply module, device and system
CN109353235A (en) * 2018-11-15 2019-02-19 广州供电局有限公司 POE power supply equipment and POE power supply system
TWI800809B (en) * 2021-03-30 2023-05-01 宇紘國際有限公司 Power Conversion Control System for Power over Ethernet Switches
CN117118054B (en) * 2023-10-23 2024-02-02 智道网联科技(深圳)有限公司 Dual-power supply protection device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110133551A1 (en) * 2008-08-01 2011-06-09 Sensormatic Electronics, LLC Battery backed power-over-ethernet system
US8214680B1 (en) * 2009-02-12 2012-07-03 Hewlett-Packard Development Company, L.P. PoE powered management circuitry using out-of-band data port
CN104038350A (en) * 2014-05-12 2014-09-10 东莞市钜佳电子有限公司 Ethernet backup power supply module, device and system
WO2014161009A2 (en) * 2013-03-01 2014-10-02 Computer Performance, Inc. Power over ethernet injector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110133551A1 (en) * 2008-08-01 2011-06-09 Sensormatic Electronics, LLC Battery backed power-over-ethernet system
US8214680B1 (en) * 2009-02-12 2012-07-03 Hewlett-Packard Development Company, L.P. PoE powered management circuitry using out-of-band data port
WO2014161009A2 (en) * 2013-03-01 2014-10-02 Computer Performance, Inc. Power over ethernet injector
CN104038350A (en) * 2014-05-12 2014-09-10 东莞市钜佳电子有限公司 Ethernet backup power supply module, device and system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106655478A (en) * 2017-01-25 2017-05-10 云南水务投资股份有限公司 Low-voltage emergency safety power supply system of household garbage power plant and control method of system
CN106655478B (en) * 2017-01-25 2023-07-25 云南水务投资股份有限公司 Low-voltage emergency safety power supply system of household garbage power plant and control method thereof
CN110612502A (en) * 2017-04-26 2019-12-24 维谛信息技术系统有限公司 Dongle with power supply based on rechargeable supercapacitors
EP3616026A4 (en) * 2017-04-26 2020-04-22 Vertiv IT Systems, Inc. Dongle having rechargeable, supercapacitor based power supply
CN110612502B (en) * 2017-04-26 2024-05-17 维谛信息技术系统有限公司 Dongle with power supply based on rechargeable supercapacitor
IT202200004808A1 (en) * 2022-03-14 2023-09-14 9 Dot S R L PoE POWER INJECTOR

Also Published As

Publication number Publication date
AU2014101258A4 (en) 2014-11-13
CN203859758U (en) 2014-10-01

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