WO2024256217A1 - Dispositif d'éclairage alimenté en courant continu et son procédé de commande de fonctionnement - Google Patents

Dispositif d'éclairage alimenté en courant continu et son procédé de commande de fonctionnement Download PDF

Info

Publication number
WO2024256217A1
WO2024256217A1 PCT/EP2024/065323 EP2024065323W WO2024256217A1 WO 2024256217 A1 WO2024256217 A1 WO 2024256217A1 EP 2024065323 W EP2024065323 W EP 2024065323W WO 2024256217 A1 WO2024256217 A1 WO 2024256217A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
unit
lighting
powered
lighting device
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP2024/065323
Other languages
English (en)
Inventor
Matthias Wendt
Andreas Felix Alfred BLUSCHKE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Signify Holding BV
Original Assignee
Signify Holding BV
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 Signify Holding BV filed Critical Signify Holding BV
Publication of WO2024256217A1 publication Critical patent/WO2024256217A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/175—Controlling the light source by remote control
    • H05B47/185—Controlling the light source by remote control via power line carrier transmission
    • H05B47/187—Controlling the light source by remote control via power line carrier transmission using power over ethernet [PoE] supplies

Definitions

  • the invention is directed to a DC-powered lighting device, to a lighting arrangement comprising a DC-powered lighting device, to a method for controlling operation of a DC-powered lighting device and to a computer program.
  • US 2018/0375673 describes a power receiving device, such as a lighting device, configured to be provided with power, in particular DC-power, by a power providing device.
  • the power receiving device comprises a power receiving unit configured to receive power from the power providing device at a first voltage and at a second voltage, and a power reception control unit configured to control the power receiving device to operate in a first mode and in a second mode, wherein the power reception control unit is configured to control the power receiving device to operate in the first mode upon receiving power at the first voltage and is further configured to control the power receiving device to switch from operating in the first mode to operating in the second mode upon receiving power at the second voltage after receiving power at the first voltage.
  • a switching to stand-by mode i.e. a switching from providing power at the first voltage to providing power at the second voltage is automatically initiated when the supply current taken by the power receiving device falls below a predefmed/programmable threshold value.
  • a DC-powered luminaire is likely to be either powered down or in a stand-by mode during quiescent periods of time. Any additional functions or capabilities of the DC- powered luminaire other than illuminating are therefore only available when the DC-powered luminaire is powered.
  • a DC-powered lighting device comprises a lighting unit for providing light for illuminating a space.
  • the DC-powered lighting device comprises a first DC-power input unit for receiving a first DC-power from a DC-power sourcing equipment via a first wired channel and a second DC-power input unit for receiving a second DC-power from the DC- power sourcing equipment via a second wired channel.
  • a lighting driver unit is connected to the first DC-power input unit and configured to generate and provide a lighting current for operating the lighting unit using the first DC-power.
  • a communication unit is connected to the second DC-power input unit for receiving the second DC-power and configured to establish a wired communication channel with the power sourcing equipment for providing or receiving communication signals, in accordance with a suitable communication protocol.
  • each one of the DC-power for powering a respective one of the lighting driving unit which controls the provision of the lighting current for operating the lighting unit
  • the communication unit which establishes data communication (i.e., provides communication signals to, and/or receives communication signals from)
  • PoE Power over Ethernet
  • PD powered devices
  • An embodiment of the DC-powered lighting device is advantageously used in the frame of a power over Ethernet (PoE) based system such as, for instance, a PoE based digital ceiling, where network cabling, such as CAT 5, CAT 6, CAT 7 or CAT 8 cables comprising a plurality of twisted pairs are used for providing power to the devices of the system, which typically include sensors, switches and lighting devices and which may also include other units such as wireless communication units.
  • PoE standard has currently undergone its third revision and now supports up to 75W with flexible power budgeting and standby mechanism.
  • the communication unit is further configured to provide control instructions for operating the lighting driver unit.
  • the control instructions can be provided by the power sourcing equipment and forwarded to the lighting driver unit via the communication unit, and/or can be generated by the communication unit acting as controller unit.
  • the lighting driver unit is configured to provide the lighting current in dependence on the control instructions provided by the communication unit.
  • the first DC-power input and the second DC-power input are integrated in a common connection socket, in particular a socket for an Ethernet cable, where a first set of connectors for a first pair of twisted pair of the Ethernet cable forms the first DC-power input and a second set of connectors for a second pair of twisted pair of the Ethernet cable forms the second DC-power input.
  • the DC-powered lighting device of this embodiment is a PoE-capable device.
  • the communication unit comprises a DC-power output unit for providing operation DC-power to an external (i.e., not belonging to the DC-powered lighting device) DC-powered device.
  • the external DC-powered device is a wireless communication unit or wireless access point.
  • the wireless communication unit is configured to provide and/or receive radiofrequency signals in accordance with a predetermined wireless communication protocol, such as, but not limited to, WiFi, Zigbee, Bluetooth, BLE, Thread, LTE, 5G, LiFi, Matter, etc.
  • the wireless communication unit can be advantageously used to provide status data indicative of the operational state of the DC- powered device, to receive status data indicative of the operational state of other devices, such as sensors, switches, etc., or to receive/provide operational instructions to other devices.
  • the wireless communication unit can be connected to the DC-power output unit via a twisted pair wiring or any other wired connection.
  • the DC-powered lighting device of the first aspect of the invention comprises a control-and- communication unit connected to the second DC-power input, wherein the control-and- communication unit includes the controller unit and a DC-powered wireless communication unit.
  • an isolation switch is provided.
  • the isolation switch is configured to control reception of the first DC-power.
  • the isolation switch can therefore be also configured to control the provision of the lighting current to the lighting unit.
  • Control in this case means to allow or prevent the provision of the lighting current for operating the lighting unit.
  • the parameters of the lighting unit e.g., light intensity, light spectrum, color temperature, dynamic effects, etc.
  • control instructions can be received via the wired connection with the power sourcing equipment, in particular via the first wired channel.
  • control instructions can be received wirelessly via the wireless communication unit.
  • the DC-powered lighting device of the first aspect of the invention further comprises a power negotiation unit.
  • the power negotiation unit is connected to the first DC-power input unit and to the second DC-power input unit and is configured to negotiate a required DC-power amount with the external DC-power sourcing equipment in accordance with a predetermined power-negotiation protocol.
  • the power sourcing equipment is configured to provide DC-power via the first wired channel and/or the second wired channel only after it has detected that the connected device is a DC- powered device.
  • an amount of DC-power is also negotiated based on the nature of the connected DC-powered device and its minimum power requirements. In the present embodiment, this is achieved by means of a power negotiation unit.
  • the power negotiation unit comprises a first power negotiation unit for negotiating the first DC- power to be received via the first wired channel and a second power negotiation unit for negotiating the second DC-power to be received via the second wired channel.
  • the power negotiation unit comprises a power balancing unit that is configured to control provision of at least a part of the first DC-power to the controller unit and/or at least a part of the second DC-power amount to the lighting driver unit.
  • the controller unit is further configured to provide the control instructions using the first DC-power amount and/or the second DC- power amount.
  • the lighting driver unit is configured to provide the lighting current using the first DC-power amount and/or the second DC-power amount.
  • the power balancing unit allows to balance the current as drawn from the first DC-power input and from the second DC-power input. This enables a reduction of power losses in the connection cable (e.g., Ethernet cable) and best use of the electronics, since both the first wired channel and the second wired channel can provide a similar amount of DC-power. In detail, this means that a fraction of the first DC-power used for light generation can be drawn from the second wired channel.
  • the lighting unit is supplied with a higher DC- power than the controller unit or the control -and-communi cation unit.
  • the controller unit especially the control -and-communi cation unit may need peak DC- power values higher than what a signal wired channel can deliver and then the necessary DC- power can be drawn from the first DC-power input via the power balancing unit.
  • High DC- power may be required for example in the case of wireless communication unit configured as a 5G based access point.
  • a lighting arrangement comprises at least a DC-powered lighting device according to any of the preceding claims.
  • the one or more DC-powered devices are connected to a power sourcing equipment.
  • the power sourcing equipment is configured to be connected to a mains power supply and comprises a DC-power output interface including a first DC-power output unit for providing the first DC-power via the first wired channel, and a second DC-power output unit for providing the second DC-power via the second wireless channel.
  • the lighting arrangement of the second aspect of the invention thus shares the advantages of the DC-powered device of the first aspect of the invention or of any of its embodiments.
  • the power sourcing equipment can be a PoE network switch, also referred to an endpoint or endspan. Since the PoE network switch itself can provide DC-power to the DC-powered devices connected thereto, there is no need for an additional power source between the PoE switch and the connected DC-powered devices, also referred to as PoE edge device.
  • a power source that injects DC-power into the wired channels is required.
  • This device usually referred to as PoE midspan or PoE injector, is placed between the non-PoE network switch and the DC-powered device.
  • first wired channel and/or the second wired channel comprise a respective twisted pair wiring.
  • first wired channel and the second wired channel are part of a common cable, such as an Ethernet cable, for example a CAT 5, CAT 6, CAT 7 or CAT 8 cable.
  • the power sourcing equipment comprises a DC- powered lighting device identification unit that is configured to identify a connection of a DC-powered lighting device to the DC-power output interface and to provide DC-power upon determining that a connected device is a DC-powered lighting device.
  • the DC-powered lighting device identification unit is advantageously configured to cooperate with a power negotiation unit of the DC-powered lighting device to negotiate the amount of DC-power to be provided via each of the first wired channel and the second wired channel.
  • the power sourcing equipment is further configured to provide, via the first wired channel, operation instructions to the controller unit for operating the lighting unit.
  • a third aspect of the present invention is formed by a method for controlling operation of a DC-powered lighting device.
  • the method comprises:
  • the lighting current is then provided in dependence on the control instructions received.
  • the method of the third aspect thus shared the advantages of the DC-powered device of the first aspect or of any of its embodiments.
  • a further aspect of the invention is formed by a computer program comprising instructions which, when executed by a DC-powered lighting device, cause the DC-powered lighting device to carry out the method of the third aspect.
  • DC-powered lighting device of claim 1 the lighting arrangement of claim 9, the method for controlling operation of a DC-powered lighting device of claim 14, and the computer program of claim 15, have similar and/or identical preferred embodiments, in particular, as defined in the dependent claims.
  • Fig. 1 shows a schematic block diagram of a lighting arrangement, in particular a PoE based lighting arrangement in accordance with one embodiment of the invention
  • Fig. 2 shows a schematic block diagram of an exemplarily DC-powered lighting device in accordance with an embodiment of the invention
  • Fig. 3 shows a schematic block diagram of an exemplarily DC-powered lighting device in accordance with another embodiment of the invention
  • Fig. 4 shows a schematic block diagram of an exemplarily DC-powered lighting device in accordance with another embodiment of the invention.
  • Fig. 5 shows an electric circuit of an exemplarily DC-powered lighting device in accordance with yet another embodiment of the invention
  • Fig. 6 shows a schematic block diagram of another exemplarily DC-powered lighting device in accordance with yet another embodiment of the invention.
  • Fig. 7 shows a flow diagram of an exemplary method in accordance with an embodiment of the invention.
  • Fig. 1 shows a schematic block diagram of a lighting arrangement 1000, in particular a PoE based lighting arrangement in accordance with one embodiment of the invention.
  • the lighting arrangement 1000 shown in Fig. 1 can be for instance the lighting part of a digital ceiling system in the frame of a building management system.
  • a power sourcing equipment 150 in this case a PoE compatible power sourcing equipment, also known as PoE switch is connected to AC mains supply 11 for receiving the operational power that is required for its operation.
  • a data connection 12 is available for providing and receiving data signals (e.g., indicative of operation instructions, status information, etc.).
  • Three DC-powered lighting devices 100.1, 100.2 and 100.3 are connected to the power sourcing equipment 150 via a separate dedicated PoE connection, in particular via respective Ethernet cables (e.g.
  • the DC- powered lighting devices 100.1, 100.2 and 100.3 comprise preferably an LED based lighting unit mounted in a luminaire 14 and driven via a PoE driver 15 acting as a PoE powered device that is configured to request DC power from the power sourcing equipment 150.
  • a PoE driver 15 acting as a PoE powered device that is configured to request DC power from the power sourcing equipment 150.
  • the PoE driver 15 is also configured to provide the driving current for the LED’s in the luminaire.
  • the PoE driver is also configured to receive and/or provide communication signals via the Ethernet connection to the PoE switch 150, for instance for controlling or monitoring functions, in particular controlling functions associated to the lighting unit.
  • Fig. 2 shows a schematic block diagram of an exemplarily DC-powered lighting device 100 in accordance with an embodiment of the invention that is suitable for use in a lighting arrangement, such as lighting arrangement 1000 of Fig. 1.
  • the DC-powered lighting device 100 comprises a lighting unit 102 for providing light for illuminating a space 10.
  • the DC-powered lighting device comprises a first DC-power input unit 104 for receiving a first DC-power DC1 from a DC-power sourcing equipment 150 via a first wired channel 152 and a second DC-power input unit 106 for receiving a second DC-power DC2 from the DC-power sourcing equipment 150 via a second wired channel 154.
  • the DC-powered lighting device 100 comprises a lighting driver unit 108 that is connected to the first DC- power input unit and configured to generate and provide a lighting current II for operating the lighting unit using the first DC-power. Further, the DC-powered lighting device comprises a communication unit 110 that is connected to the second DC-power input unit for receiving the second DC-power and configured to establish a wired communication channel with the power sourcing equipment for providing or receiving communication signals. The combination of the communication unit 110 and the lighting driver unit 108 may form a PoE driver 15, as described with reference to Fig. 1.
  • the power sourcing equipment 150 is configured to be connected to a mains power supply 11 and comprises a first DC-power output unit 156 for providing the first DC-power DC1 via the first wired channel 152, and a second DC-power output unit 158 for providing the second DC-power DC2 via the second wired channel 154.
  • the communication unit 110 can be advantageously configured to provide control instructions 112 for operating the lighting driver unit.
  • the control instructions can be indicative of operation parameter of the lighting unit, such as, light intensity, spectrum, colour temperature, a dynamic effect, etc.
  • the control instructions may be received from the power sourcing equipment 150 via the second wired connection channel 154 or can be generated by the communication unit, for instance based on status information or specific input data, for example from a presence sensor or a light sensor, or a predetermined operation schedule.
  • Fig. 3 shows a schematic block diagram of an exemplarily DC-powered lighting device 100b in accordance with another embodiment of the invention. For the sake of clarity, those technical features of the device 100b that have an identical or similar function as those of the DC-powered lighting device 100 of Fig.
  • the first DC-power input and the second DC-power input are integrated in a common connection socket, for instance a RJ45 socket for an Ethernet cable.
  • the first DC-power output 156 and the second DC-power output 158 of the power sourcing equipment 150b are integrated in a common socket 155.
  • the DC-powered device 100b may include a DC-power output unit 114 for providing operation DC-power DC3 to an external DC-powered device, such as a wireless communication unit 116.
  • a DC-power output unit 114 for providing operation DC-power DC3 to an external DC-powered device, such as a wireless communication unit 116.
  • Other suitable DC-powered devices that can be connected to the DC-power output unit 114 include, but are not limited to a sensing device, a switch, another lighting device such as an emergency lighting, etc.
  • the DC- powered device 116 is connected to the DC-power output unit via a twisted pair wiring 115 for provision of the operation DC-power, for instance in accordance with a PoE protocol.
  • the DC-powered lighting device may be able to power a wireless communication unit like a Wi-Fi or a LiFi access point, preferably with a connection by means of twisted pair wiring 115.
  • a wireless communication unit like a Wi-Fi or a LiFi access point, preferably with a connection by means of twisted pair wiring 115.
  • the wireless communication unit is connected to channel A. As discussed above channel A is constantly connected, connecting the power sourcing equipment to the communication unit.
  • Fig. 4 shows a schematic block diagram of another exemplarily DC-powered lighting device 100c in accordance with another embodiment of the invention.
  • the DC- powered device 100c comprises a controller unit 118 that includes the communication unit 110 and a wireless communication unit 116.
  • the controller 118 unit is connected to the second DC power input unit for reception of the second DC-power.
  • the controller unit alternatively or additionally comprises other functional units, such as a sensor unit (presence sensor, temperature sensor, light sensor, a humidity sensor, etc.).
  • the data gathered by the sensor unit can be used by the controller unit to control operation of the lighting unit.
  • the controller unit can provide communication signals indicative of the gathered data or of the operational state of the lighting unit to the power sourcing equipment 150b, via the second wired channel 154.
  • Fig. 5 shows an electric circuit of an exemplarily DC-powered lighting device lOOd in accordance with yet another embodiment of the invention.
  • the DC-powered lighting device lOOd of Fig. 5 comprises a power interface PI that includes the first DC-power input unit 104 and the second DC-power input unit 106, for connecting a first wired channel 152 and a second wired channel 154 respectively, for instance a respective wired pair of an Ethernet cable.
  • the first and the second DC-power input unit comprise a respective diode bridge rectifier 140.
  • the DC- powered lighting device lOOd further comprises a power negotiation unit 120 that is connected to the first DC-power input unit 104 and to the second DC-power input unit 106 and configured to negotiate a required DC-power amount with the external DC-power sourcing equipment in accordance with a predetermined power-negotiation protocol, such as those implemented in IEEE 802.3 standards (e.g. IEEE802.3af, IEEE802.3at or IEEE802.3bt).
  • the DC-powered lighting device also comprises a respective isolation switch 121.1 and 121.2 to control reception of the first and the second DC-power respectively. Alternatively or additionally, the isolation switch 121.1 controls provision of the lighting current for operating the lighting unit 102.
  • the DC-powered lighting device is in a dual loaddual signature configuration, wherein each of the loads, namely the lighting driver unit and the communication unit receive DC-power from a respective one of the two wired channels.
  • each of the loads namely the lighting driver unit and the communication unit receive DC-power from a respective one of the two wired channels.
  • the power sourcing equipment is configured to keep track of the negotiated power, in particular for the lighting unit.
  • no new identification, classification routine (which is typical for PoE) needs to be executed and the power budgeting of the power sourcing equipment will automatically assume the last requested power value in the moment the lighting unit is reconnected. Only when also the communication unit A is disconnected, the requested power memory will be erased and at new connection of the DC-powered lighting device the DC power will be renegotiated. This is typically the case after system power loss at the mains connection 11 or when PoE connections 13.1, 13.2, 13.3 are changed (see Fig. 1).
  • the PSE power management functionality can make use of this for a stand-by optimized powering, e.g., the power supply in the PSE may have multiple stages (registers) which are activated dependent on the drawn power of all connected PoE loads.
  • Fig. 6 shows a schematic block diagram of another exemplarily DC-powered lighting device lOOe in accordance with yet another embodiment of the invention. Also shown in Fig. 6 is the power sourcing equipment (PSE) 150.
  • the PSE comprises a DC- powered lighting device identification unit 160 that is configured to identify a connection of a DC-powered lighting device lOOe to the DC-power output interface and to provide DC- power upon determining that a connected device is a DC-powered lighting device.
  • the DC- powered lighting device identification unit 160 comprises a first controller 160A for channel A and a second controller 160B for channel B.
  • the DC-powered lighting device lOOe comprises a channel A controller 122A and a channel B controller 122B which are configured to receive DC power from the related PSE channels A, 154 and B, 152.
  • the channel A controller 122A and the channel B controller 122B comprise the respective power negotiation unit, and the isolation switches.
  • Channel A DC-power, DC2 is used to supply the necessary DC power DC2.1 for operation of the communication unit 110 of the PoE electronics 15. In addition, it may also supply the necessary DC power, DC3 to the wireless communication unit 116, or to any other additional DC-powered unit.
  • Channel B DC-power, DC1 is used to supply the power DC 1.1 to the lighting driver unit 108 which is configured to generate and provide the current II for driving the lighting unit 102 in the luminaire 14.
  • the lighting driver unit 108 can be controlled by control instructions 112 provided by the communication unit 110.
  • a power balancing unit can be added which allows to balance the current as drawn through channel A and channel B. This results in minimal power loss in the PoE cabling and best use of all the installed semiconductors.
  • Figure 6 depicts such an embodiment where the power balancing unit 124 ensures that both channels A and B deliver the same power. In detail this means that a fraction of the light generating power DC1.1 is taken from channel A.
  • the additional DC-powered device such as the wireless communication unit 116) may need peak powers even higher than those that a single channel can deliver. In this case part of the DC power, DC3 is drawn from channel B. High DC-power use may be required, for instance, for 5G communication units.
  • the dual signature PoE PD interfacing comprising the channel A controller 122A and the channel B controller 122B is bundled in a module. This may even be placed separately from the luminaire electronics and deliver data and stand-by and control power to the communication module 110 as well as lighting power DC 1.1 separately to the luminaire electronics and external wireless communication unit 116.
  • easy upgradeability to include communication functionality is guaranteed by a modular approach and a dedicated communication module socket as part of the luminaire 14.
  • two pairs of twisted pair form one DC-circuit and the remaining two pairs of twisted pairs of an 8-conductor Ethernet cable form the second DC-circuit.
  • Fig. 7 shows a flow diagram of an exemplary method 500 in accordance with an embodiment of the invention.
  • the method 500 for controlling operation of a DC-powered lighting device comprises, in a step 502, receiving a first DC-power from a DC-power sourcing equipment via a first wired channel.
  • the method further comprises, in a step 504, receiving a second DC-power from the DC-power sourcing equipment via a second wired channel.
  • the method also comprises, in a step 506, generating and providing a lighting current for operating the lighting unit using the first DC-power, and, in a step 508, operating a communication unit using the second DC-power.
  • the invention is directed to a DC-powered lighting device, comprising a lighting unit, a first DC-power input unit for receiving a first DC-power via a first wired channel, a second DC-power input unit for receiving a second DC-power via a second wired channel, a lighting driver unit connected to the first DC-power input unit and configured to generate and provide a lighting current for operating the lighting unit using the first DC-power; and a communication unit connected to the second DC-power input unit for receiving the second DC-power and configured to establish a wired communication channel with the power sourcing equipment for providing or receiving communication signals, thereby enabling operation of the communication unit independently of an operational state of the lighting unit.
  • a computer program may be stored/distributed on a suitable medium, such as an optical storage medium or a solid-state medium, supplied together with or as part of other hardware, but may also be distributed in other forms, such as via the Internet or other wired or wireless telecommunication systems.
  • a suitable medium such as an optical storage medium or a solid-state medium, supplied together with or as part of other hardware, but may also be distributed in other forms, such as via the Internet or other wired or wireless telecommunication systems.

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

L'invention concerne un dispositif d'éclairage alimenté en courant continu (100), comprenant une unité d'éclairage (102), une première unité d'entrée de courant continu (104) pour recevoir un premier courant continu (DC1) par l'intermédiaire d'un premier canal câblé (152), une seconde unité d'entrée de courant continu (106) pour recevoir un second courant continu (DC2) par l'intermédiaire d'un second canal câblé (154), une unité de commande d'éclairage (108) connectée à la première unité d'entrée de courant continu et configurée pour générer et fournir un courant d'éclairage (IL) afin de commander l'unité d'éclairage à l'aide du premier courant continu ; et une unité de communication (110) connectée à la seconde unité d'entrée de courant continu pour recevoir le second courant continu et configurée pour établir un canal de communication câblé avec l'équipement de production d'énergie afin de fournir ou de recevoir des signaux de communication, ce qui permet à l'unité de communication de fonctionner indépendamment d'un état opérationnel de l'unité d'éclairage.
PCT/EP2024/065323 2023-06-13 2024-06-04 Dispositif d'éclairage alimenté en courant continu et son procédé de commande de fonctionnement Ceased WO2024256217A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP23178814.2 2023-06-13
EP23178814 2023-06-13

Publications (1)

Publication Number Publication Date
WO2024256217A1 true WO2024256217A1 (fr) 2024-12-19

Family

ID=86764489

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2024/065323 Ceased WO2024256217A1 (fr) 2023-06-13 2024-06-04 Dispositif d'éclairage alimenté en courant continu et son procédé de commande de fonctionnement

Country Status (1)

Country Link
WO (1) WO2024256217A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013107015A1 (fr) * 2012-01-19 2013-07-25 Telefonaktiebolaget L M Ericsson(Publ) Supervision d'alimentation sur ethernet
US20150195883A1 (en) * 2014-01-06 2015-07-09 Cree, Inc. Power over ethernet lighting fixture
EP3138181A1 (fr) * 2015-03-18 2017-03-08 Iota Engineering LLC Système d'éclairage d'urgence à alimentation électrique par câble ethernet
US20180375673A1 (en) 2015-06-30 2018-12-27 Philips Lighting Holding B.V. Power providing device and method, power receiving device
US20210281106A1 (en) * 2020-03-06 2021-09-09 Innovative Lighting, LLC Networked lighting driver incorporating a physical negotiated link loss mode

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013107015A1 (fr) * 2012-01-19 2013-07-25 Telefonaktiebolaget L M Ericsson(Publ) Supervision d'alimentation sur ethernet
US20150195883A1 (en) * 2014-01-06 2015-07-09 Cree, Inc. Power over ethernet lighting fixture
EP3138181A1 (fr) * 2015-03-18 2017-03-08 Iota Engineering LLC Système d'éclairage d'urgence à alimentation électrique par câble ethernet
US20180375673A1 (en) 2015-06-30 2018-12-27 Philips Lighting Holding B.V. Power providing device and method, power receiving device
US20210281106A1 (en) * 2020-03-06 2021-09-09 Innovative Lighting, LLC Networked lighting driver incorporating a physical negotiated link loss mode

Similar Documents

Publication Publication Date Title
JP7223789B2 (ja) 配電システムにおける受電装置のための低電力スタンバイ
US11281282B2 (en) Intermediary device for extracting power supplied over a data connection
EP3318004B1 (fr) Dispositif et procédé de fourniture de puissance, dispositif de réception de puissance
CA2922306C (fr) Systeme de distribution d'energie
US7509114B2 (en) Redundant powered device circuit
US7145439B2 (en) Powered device interface circuit
US7449796B2 (en) Power over ethernet controller suitable for multiple modes
US10231314B2 (en) Power splitter for a variable number of loads and power splitting method
EP3266150B1 (fr) Dispositif alimenté dans un système de réseau d'alimentation par ethernet et procédés correspondants
US20070135086A1 (en) Providing detailed information on powered device in system for supplying power over communication link
US10530590B2 (en) Forced bulk capacitor discharge in powered device
US7898406B2 (en) Powered device with priority indicator
WO2024256217A1 (fr) Dispositif d'éclairage alimenté en courant continu et son procédé de commande de fonctionnement

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 24731001

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE