EP3510836B1 - Operating device with power factor correction and ripple compensation by change in operation - Google Patents

Operating device with power factor correction and ripple compensation by change in operation Download PDF

Info

Publication number
EP3510836B1
EP3510836B1 EP16921213.1A EP16921213A EP3510836B1 EP 3510836 B1 EP3510836 B1 EP 3510836B1 EP 16921213 A EP16921213 A EP 16921213A EP 3510836 B1 EP3510836 B1 EP 3510836B1
Authority
EP
European Patent Office
Prior art keywords
cbulk
energy store
light
operating device
emitting means
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.)
Active
Application number
EP16921213.1A
Other languages
German (de)
French (fr)
Other versions
EP3510836A4 (en
EP3510836A1 (en
Inventor
Yaofeng LIN
Zhihong ZOU
Junxiang LIN
Guoji Zhong
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.)
Tridonic GmbH and Co KG
Original Assignee
Tridonic GmbH and Co KG
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 Tridonic GmbH and Co KG filed Critical Tridonic GmbH and Co KG
Publication of EP3510836A1 publication Critical patent/EP3510836A1/en
Publication of EP3510836A4 publication Critical patent/EP3510836A4/en
Application granted granted Critical
Publication of EP3510836B1 publication Critical patent/EP3510836B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/355—Power factor correction [PFC]; Reactive power compensation
    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/385—Switched mode power supply [SMPS] using flyback topology
    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/375—Switched mode power supply [SMPS] using buck topology
    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/38—Switched mode power supply [SMPS] using boost topology
    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/39—Circuits containing inverter bridges

Definitions

  • the invention relates to an operating device for a light-emitting means in accordance with the preamble of patent claim 1 and to a method in accordance with the preamble of patent claim 7.
  • Such operating devices are used in lighting systems in order to achieve lighting of rooms, routes or else escape routes.
  • the light-emitting means are actuated and, if necessary, activated by operating devices.
  • gas discharge lamps or else light-emitting diodes (LEDs) are used as light source.
  • US 2014/346965 A1 shows an operating device for light emitting means having a driver circuit, an energy storage and a power factor correction circuit.
  • the voltage at the energy storage of the power factor correction circuit is monitored, and an operation of the operating device is changed, if the ripple of the voltage and the energy store exceeds a predetermined limit value.
  • US 2014/346965 A1 shows reducing the output current, in this case.
  • US 2016/204693 A1 shows a two-stage electronic ballast including a boost power factor control (PFC) stage at the input, an intermediate circuit electrolytic capacitor which supplies a second stage of the two-stage electronic ballast, which second stage supplies the load with electrical energy.
  • PFC boost power factor control
  • the power drawn from the intermediate circuit capacitor by the second stage is set, such that an undershooting of a required minimum intermediate circuit voltage is avoided.
  • the intermediate circuit capacitor has applied to it a maximum possible current that still allows intended operation of the energy converter, such that rapid heating of the intermediate circuit capacitor is achieved leading to a reduction of the ESR.
  • the object of the invention consists in providing an operating device for a light-emitting means which has power factor correction and only transmits very low levels of interference.
  • the invention relates to an operating device for a light-emitting means according to claim 1.
  • the operating device preferably has means for estimating the life of the energy store to be expected. These means for estimating the life to be expected preferably evaluate the detected ripple of the voltage at the energy store. Optionally, in addition also further measurements or actuation variables can be evaluated within the operating device.
  • the invention also relates to a method for operating light-emitting means according to claim 7.
  • Figure 1 shows an operating device A for a light-emitting means.
  • Such an operating device A for a light-emitting means typically has a driver circuit (lamp driver) for operating at least one light-emitting means (load), an energy store, which feeds the driver circuit, a power factor correction circuit (PFC), which can be in the form of a boost converter and feeds the energy store, having a storage inductor, an actively clocked switch and a rectifying diode.
  • a filter circuit and a rectifier circuit are preferably connected upstream of the power factor correction circuit.
  • the driver circuit is a resonant half-bridge for actuating a lamp load.
  • the driver circuit can also be formed by a resonant half-bridge with electrical isolation and rectification at the output for actuating LEDs.
  • Figure 2 shows a power factor correction circuit according to the invention for an operating device for a light-emitting means.
  • the power factor correction circuit is in the form of a boost converter and feeds the energy store Cbulk.
  • the energy store Cbulk is, for example, an electrolytic capacitor. It has a storage inductor Lb, an actively clocked switch S and a rectifying diode D.
  • the operating device (A) for a light-emitting means has at least one driver circuit for operating at least one light-emitting means, an energy store (Cbulk), which feeds the driver circuit (LED driver), and a power factor correction circuit, which is preferably in the form of a boost converter and feeds the energy store (Cbulk), having a storage inductor (Lb), an actively clocked switch (S) and a rectifying diode (D).
  • the voltage at the energy store (Cbulk) is monitored, and the operation of the operating device (A) is changed if the ripple of the voltage at the energy store (Cbulk) exceeds a predetermined limit value.
  • the operating device (A) for a light-emitting means changes the operation of the driver circuit (LED driver) and of the power factor correction circuit if the ripple of the voltage at the energy store (Cbulk) exceeds a predetermined limit value.
  • the voltage at the energy store (Cbulk) can be decreased if the ripple of the voltage at the energy store (Cbulk) exceeds a predetermined limit value.
  • the control loop or the control parameters of the power factor correction circuit can be changed.
  • the power output or output current by the driver circuit (LED driver) is increased.
  • driver circuits LED drivers
  • the driver circuit (LED driver) is preferably a circuit with radiofrequency clocking having at least one actively clocked switch and one inductance (L), which is charged and discharged by the radiofrequency clocking.
  • the driver circuit (LED driver) is, for example, a buck converter, an isolated flyback converter or an inverter circuit.
  • a plurality of light emitting means are fed directly or indirectly from the driver circuits (LED drivers) and, according to the invention, in the event that a limit value for the ripple of the voltage at the energy store (Cbulk) is exceeded, at least some additional light-emitting means are connected to the driver circuit (LED driver).
  • LED driver there may be a bridging switch arranged in parallel to one or more light emitting means which is permanently closed at the start of operation.
  • the bridging switch may be permanently opened and thus additional light emitting means would be powered by the driver circuit (LED driver).
  • LED driver which is in the form of a buck converter is shown in figure 3 .
  • the LEDs in the LED string are actuated depending on the clocking of the switch S.
  • the power output or output current by the driver circuit could be increased by clocking of the switch S with a increased duty factor.
  • the light-emitting means can be an LED or a gas discharge lamp.
  • the operating device (A) can transmit a fault message via an interface or optical signalling via the light-emitting means can take place in the event that a limit value for the ripple of the voltage at the energy store (Cbulk) is exceeded.
  • a power factor correction circuit feeds the energy store (Cbulk) and an energy store (Cbulk) feeds the driver circuit (LED driver).
  • the voltage at the energy store (Cbulk) is monitored, and the operation of the light-emitting means is performed depending on the detected ripple of the voltage at the energy store (Cbulk) a predetermined limit value.
  • Temperature monitoring can be performed at the energy store (Cbulk), the power factor correction circuit or the driver circuit (LED driver) and, as a result of a predetermined limit temperature being exceeded, a reduction in the power or current transmitted to the light-emitting means or else another change to the operation of the light-emitting means can be performed, and the value of the limit temperature to be predetermined can be set depending on the detected ripple of the voltage at the energy store (Cbulk).
  • Such limitation of current or power transmitted to the light-emitting means in case of high temperature may prevent damages from the operating device.
  • a lighting unit having an operating device A for a light-emitting means comprising the power factor correction circuit according to the invention can be constructed.
  • the life to be expected of the energy store (Cbulk) and therefore also of the entire operating device (1) can be estimated.
  • the operating device (A) therefore has means for estimating the life to be expected of the energy store (Cbulk). Said means preferably evaluate the detected ripple of the voltage at the energy store (Cbulk), but it is optionally also additionally possible for further measurements or actuation variables to be evaluated.
  • the operating device is designed for estimating the life to be expected of the energy store (Cbulk) on the basis of the detected ripple of the voltage at the energy store (Cbulk).
  • the operating device (A) can also have further power stages connected in series.
  • an energy store can be arranged in each case between these power stages, it being possible for the voltage ripple of said energy stores to be monitored for identification of aging.
  • the ripple of the voltage at the energy store (Cbulk) can be read, for example, via an analog-to-digital converter.
  • This analog-to-digital converter can be part of an integrated control circuit, which can also influence the operation of the operating device.
  • this integrated control circuit can actuate, for example, the actively clocked switch (S) of the power factor correction circuit or else the switch(es) of the driver circuit (LED driver).
  • the operating device (A) has an interface
  • reading of the life to be expected may also be possible via this interface.
  • the reading can for example automatically in the event that a predetermined value for the life to be expected is exceeded or else the present value for the life can be output in response to an external request via the interface.
  • the operating device (A) can transmit a fault message via an interface since, as described, the fact that a limit value for the ripple of the voltage at the energy store (Cbulk) is exceeded indicates that a specific life of the energy store (Cbulk) has been exceeded.
  • a stepwise compensation of the ageing of the operating device, especially the energy store (Cbulk) as well as the ageing of the light-emitting means may be compensated and the light intensity of the light-emitting means may be held constant.

Description

  • The invention relates to an operating device for a light-emitting means in accordance with the preamble of patent claim 1 and to a method in accordance with the preamble of patent claim 7.
    • Technical field
  • Such operating devices are used in lighting systems in order to achieve lighting of rooms, routes or else escape routes. Generally, in this case the light-emitting means are actuated and, if necessary, activated by operating devices. For such illumination, gas discharge lamps or else light-emitting diodes (LEDs) are used as light source.
    • Prior art
  • In accordance with the prior art, operating devices for light-emitting means with power factor correction are already used, but these still require a relatively large filter at the input.
  • US 2014/346965 A1 shows an operating device for light emitting means having a driver circuit, an energy storage and a power factor correction circuit. The voltage at the energy storage of the power factor correction circuit is monitored, and an operation of the operating device is changed, if the ripple of the voltage and the energy store exceeds a predetermined limit value. Especially, US 2014/346965 A1 shows reducing the output current, in this case.
  • US 2016/204693 A1 shows a two-stage electronic ballast including a boost power factor control (PFC) stage at the input, an intermediate circuit electrolytic capacitor which supplies a second stage of the two-stage electronic ballast, which second stage supplies the load with electrical energy. In order to avoid undesirable effects of high ESR of the electrolytic capacitor at low temperatures, the power drawn from the intermediate circuit capacitor by the second stage is set, such that an undershooting of a required minimum intermediate circuit voltage is avoided. Further, the intermediate circuit capacitor has applied to it a maximum possible current that still allows intended operation of the energy converter, such that rapid heating of the intermediate circuit capacitor is achieved leading to a reduction of the ESR.
    • Description of the invention
  • The object of the invention consists in providing an operating device for a light-emitting means which has power factor correction and only transmits very low levels of interference.
  • This object is achieved for an apparatus of the generic type in accordance with the invention by the characterizing features of patent claim 1 and for a method in accordance with the invention by the characterizing features of patent claim 7 Particularly advantageous embodiments of the invention are described in the dependent claims.
  • The invention relates to an operating device for a light-emitting means according to claim 1.
  • The operating device preferably has means for estimating the life of the energy store to be expected. These means for estimating the life to be expected preferably evaluate the detected ripple of the voltage at the energy store. Optionally, in addition also further measurements or actuation variables can be evaluated within the operating device.
  • The invention also relates to a method for operating light-emitting means according to claim 7.
    • Description of the preferred exemplary embodiments
  • The invention will be explained in more detail below with reference to the attached drawing, in which:
    • figure 1 shows an operating device according to the invention,
    • figure 2 shows the power factor correction circuit of an operating device in accordance with the invention, and
    • figure 3 shows One example of a driver circuit (LED driver) which is in the form of a buck converter.
  • The invention will be explained below with reference to an exemplary embodiment of an operating device for a light-emitting means.
  • Figure 1 shows an operating device A for a light-emitting means.
  • Such an operating device A for a light-emitting means typically has a driver circuit (lamp driver) for operating at least one light-emitting means (load), an energy store, which feeds the driver circuit, a power factor correction circuit (PFC), which can be in the form of a boost converter and feeds the energy store, having a storage inductor, an actively clocked switch and a rectifying diode. A filter circuit and a rectifier circuit are preferably connected upstream of the power factor correction circuit. In this example, the driver circuit is a resonant half-bridge for actuating a lamp load. Alternatively, the driver circuit can also be formed by a resonant half-bridge with electrical isolation and rectification at the output for actuating LEDs.
  • Figure 2 shows a power factor correction circuit according to the invention for an operating device for a light-emitting means.
  • The power factor correction circuit is in the form of a boost converter and feeds the energy store Cbulk. The energy store Cbulk is, for example, an electrolytic capacitor. It has a storage inductor Lb, an actively clocked switch S and a rectifying diode D.
  • The operating device (A) for a light-emitting means has at least one driver circuit for operating at least one light-emitting means, an energy store (Cbulk), which feeds the driver circuit (LED driver), and a power factor correction circuit, which is preferably in the form of a boost converter and feeds the energy store (Cbulk), having a storage inductor (Lb), an actively clocked switch (S) and a rectifying diode (D). The voltage at the energy store (Cbulk) is monitored, and the operation of the operating device (A) is changed if the ripple of the voltage at the energy store (Cbulk) exceeds a predetermined limit value.
  • The operating device (A) for a light-emitting means changes the operation of the driver circuit (LED driver) and of the power factor correction circuit if the ripple of the voltage at the energy store (Cbulk) exceeds a predetermined limit value. The voltage at the energy store (Cbulk) can be decreased if the ripple of the voltage at the energy store (Cbulk) exceeds a predetermined limit value. In the event that a limit value for the ripple of the voltage at the energy store (Cbulk) is exceeded, the control loop or the control parameters of the power factor correction circuit can be changed. In the event that a limit value for the ripple of the voltage at the energy store (Cbulk) is exceeded, the power output or output current by the driver circuit (LED driver) is increased.
  • There may be several limit values for the ripple of the voltage at the energy store (Cbulk), whereby for each of the limits a defined increase of current for the light emitting means may be defined. By definition of several limits a stepwise compensation of the ageing of the operating device, especially the energy store (Cbulk) as well as the ageing of the light-emitting means may be compensated and the light intensity of the light-emitting means may be held constant.
  • It is also possible for a plurality of driver circuits (LED drivers) to be fed directly or indirectly from the energy store (Cbulk) and, in the event that a limit value for the ripple of the voltage at the energy store (Cbulk) is exceeded, at least some of the driver circuits (LED drivers) are connected in addition. The driver circuit (LED driver) is preferably a circuit with radiofrequency clocking having at least one actively clocked switch and one inductance (L), which is charged and discharged by the radiofrequency clocking. By virtue of the driver circuit with radiofrequency clocking, the LED can be actuated with a high degree of efficiency. The driver circuit (LED driver) is, for example, a buck converter, an isolated flyback converter or an inverter circuit.
  • It is also possible that a plurality of light emitting means are fed directly or indirectly from the driver circuits (LED drivers) and, according to the invention, in the event that a limit value for the ripple of the voltage at the energy store (Cbulk) is exceeded, at least some additional light-emitting means are connected to the driver circuit (LED driver). For instance there may be a bridging switch arranged in parallel to one or more light emitting means which is permanently closed at the start of operation. In the event that a limit value for the ripple of the voltage at the energy store (Cbulk) is exceeded, the bridging switch may be permanently opened and thus additional light emitting means would be powered by the driver circuit (LED driver).
  • One example of a driver circuit (LED driver) which is in the form of a buck converter is shown in figure 3. The LEDs in the LED string are actuated depending on the clocking of the switch S. In this example, in the event that a limit value for the ripple of the voltage at the energy store (Cbulk) is exceeded, the power output or output current by the driver circuit (LED driver) could be increased by clocking of the switch S with a increased duty factor.
  • The light-emitting means can be an LED or a gas discharge lamp.
  • The operating device (A) can transmit a fault message via an interface or optical signalling via the light-emitting means can take place in the event that a limit value for the ripple of the voltage at the energy store (Cbulk) is exceeded.
  • Therefore, the possibility is also provided of a method for operating light-emitting means, wherein the light-emitting means is operated by at least one driver circuit (LED driver). A power factor correction circuit feeds the energy store (Cbulk) and an energy store (Cbulk) feeds the driver circuit (LED driver).
  • The voltage at the energy store (Cbulk) is monitored, and the operation of the light-emitting means is performed depending on the detected ripple of the voltage at the energy store (Cbulk) a predetermined limit value.
  • Temperature monitoring can be performed at the energy store (Cbulk), the power factor correction circuit or the driver circuit (LED driver) and, as a result of a predetermined limit temperature being exceeded, a reduction in the power or current transmitted to the light-emitting means or else another change to the operation of the light-emitting means can be performed, and the value of the limit temperature to be predetermined can be set depending on the detected ripple of the voltage at the energy store (Cbulk). Such limitation of current or power transmitted to the light-emitting means in case of high temperature may prevent damages from the operating device.
  • Therefore, a lighting unit having an operating device A for a light-emitting means comprising the power factor correction circuit according to the invention can be constructed.
  • By evaluating the detected ripple of the voltage at the energy store (Cbulk) and further variables detected from measurements or an evaluation of actuation signals, such as, for example, the power drawn (or else emitted) or else the on time of the actively clocked switch (S) of the power factor correction circuit, the life to be expected of the energy store (Cbulk) and therefore also of the entire operating device (1) can be estimated.
  • In this way, it is also possible to correct a previous estimation of the life to be expected.
  • The operating device (A) therefore has means for estimating the life to be expected of the energy store (Cbulk). Said means preferably evaluate the detected ripple of the voltage at the energy store (Cbulk), but it is optionally also additionally possible for further measurements or actuation variables to be evaluated. The operating device is designed for estimating the life to be expected of the energy store (Cbulk) on the basis of the detected ripple of the voltage at the energy store (Cbulk).
  • On the basis of the monitoring of the on time of the actively clocked switch (S) of the power factor correction circuit, in the case of monitoring of this variable over one or more system half-cycles, it is possible to draw a conclusion in respect of the characteristic of the transmitted power and also indirectly of the ripple of the voltage at the energy store (Cbulk) and/or the input voltage.
  • The operating device (A) can also have further power stages connected in series. In this case, an energy store can be arranged in each case between these power stages, it being possible for the voltage ripple of said energy stores to be monitored for identification of aging.
  • The ripple of the voltage at the energy store (Cbulk) can be read, for example, via an analog-to-digital converter. This analog-to-digital converter can be part of an integrated control circuit, which can also influence the operation of the operating device. Thus, this integrated control circuit can actuate, for example, the actively clocked switch (S) of the power factor correction circuit or else the switch(es) of the driver circuit (LED driver).
  • If the operating device (A) has an interface, reading of the life to be expected may also be possible via this interface. The reading can for example automatically in the event that a predetermined value for the life to be expected is exceeded or else the present value for the life can be output in response to an external request via the interface. In the event that a limit value for the ripple of the voltage at the energy store (Cbulk) is exceeded, the operating device (A) can transmit a fault message via an interface since, as described, the fact that a limit value for the ripple of the voltage at the energy store (Cbulk) is exceeded indicates that a specific life of the energy store (Cbulk) has been exceeded.
  • By definition of one or several limits a stepwise compensation of the ageing of the operating device, especially the energy store (Cbulk) as well as the ageing of the light-emitting means may be compensated and the light intensity of the light-emitting means may be held constant.

Claims (7)

  1. An operating device (A) for a light-emitting means comprising
    - at least one driver circuit (LED driver) for operating at least one light-emitting means,
    - an energy store (Cbulk), which feeds the at least one driver circuit (LED driver),
    - a power factor correction circuit, which is preferably in the form of a boost converter or flyback converter and feeds the energy store (Cbulk), having a storage inductor (Lb), an actively clocked switch (S) and a rectifying diode (D), wherein the voltage at the energy store (Cbulk) is monitored, and wherein the operating device (A) is configured to change an operation of the operating device (A) if the ripple of the voltage at the energy store (Cbulk) exceeds a predetermined limit value,
    - to change the operation of the power factor correction circuit characterized in that if the ripple of the voltage at the energy store (Cbulk) exceeds the predetermined limit value, the operating device (A) is configured
    - to change the operation of the at least one driver circuit (LED driver), increasing the output current by the at least one driver circuit (LED driver), and
    - to connect additional light-emitting means to the driver circuit (LED driver).
  2. The operating device (A) for a light-emitting means as claimed in claim 1, characterized in that the operating device (A) is configured to decrease the voltage at the energy store (Cbulk) if the ripple of the voltage at the energy store (Cbulk) exceeds the predetermined limit value.
  3. The operating device (A) for a light-emitting means as claimed in claim 1 or 2, characterized in that the operating device (A) is configured to, in the event that the predetermined limit value for the ripple of the voltage at the energy store (Cbulk) is exceeded, to change the control loop or the control parameters of the power factor correction circuit.
  4. The operating device (A) for a light-emitting means as claimed in one of claims 1 to 3,
    characterized in that
    the light-emitting means is an LED.
  5. The operating device (A) for a light-emitting means as claimed in one of claims 1 to 4,
    characterized in that
    the operating device (A) is configured to transmit or optically signal a fault message via an interface in the event that the predetermined limit value for the ripple of the voltage at the energy store (Cbulk) is exceeded.
  6. A lighting unit having an operating device (A) for a light-emitting means as claimed in one of claims 1 to 5.
  7. A method for operating light-emitting means, wherein at least one light-emitting means is operated by at least one driver circuit (LED driver), a power factor correction circuit feeds an energy store (Cbulk), and energy store (Cbulk) feeds the at least one driver circuit (LED driver), wherein a voltage at the energy store (Cbulk) is monitored, and a level of current output to the at least one light-emitting means is depending on a detected ripple of the voltage at the energy store (Cbulk), wherein, when the detected ripple of the voltage at the energy store (Cbulk) exceeds a predetermined limit value,
    - operation of power factor correction circuit is changed,
    characterized in that
    when the detected ripple of the voltage at the energy store (Cbulk) exceeds the predetermined limit value,
    - an operation of the at least one driver circuit (LED driver) is changed, increasing the output current by the at least one driver circuit (LED driver), and
    - additional light-emitting means are connected to theat least one driver circuit (LED driver).
EP16921213.1A 2016-11-08 2016-11-08 Operating device with power factor correction and ripple compensation by change in operation Active EP3510836B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/105035 WO2018085976A1 (en) 2016-11-08 2016-11-08 Operating device with power factor correction and ripple compensation by change in operation

Publications (3)

Publication Number Publication Date
EP3510836A1 EP3510836A1 (en) 2019-07-17
EP3510836A4 EP3510836A4 (en) 2020-05-13
EP3510836B1 true EP3510836B1 (en) 2023-01-04

Family

ID=62109019

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16921213.1A Active EP3510836B1 (en) 2016-11-08 2016-11-08 Operating device with power factor correction and ripple compensation by change in operation

Country Status (3)

Country Link
EP (1) EP3510836B1 (en)
CN (1) CN109952813B (en)
WO (1) WO2018085976A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113381613B (en) * 2018-03-14 2022-10-04 海信视像科技股份有限公司 Power supply control circuit and display device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7262584B2 (en) * 2004-02-19 2007-08-28 Analog Modules, Inc Efficient fast pulsed laser or light-emitting diode driver
US8193738B2 (en) * 2009-08-07 2012-06-05 Phihong Technology Co., Ltd. Dimmable LED device with low ripple current and driving circuit thereof
AT13441U1 (en) * 2011-12-23 2013-12-15 Tridonic Gmbh & Co Kg OPERATOR WITH POWER FACTOR CORRECTION
DE102012007477B4 (en) * 2012-04-13 2024-02-22 Tridonic Gmbh & Co Kg Method for operating an LLC resonant converter for a lamp, converter and LED converter
CN102833916B (en) * 2012-08-23 2014-10-15 冠捷显示科技（厦门）有限公司 DC (direct current) dimming type LED (Light Emitting Diode) drive circuit
DE102013216878A1 (en) * 2013-08-23 2015-02-26 Osram Gmbh Two-stage clocked electronic energy converter
CN103917017B (en) * 2014-03-10 2016-08-31 上海大学 A kind of single stage type no electrolytic capacitor AC/DC LED constant current drives power supply
US9271352B2 (en) * 2014-06-12 2016-02-23 Power Integrations, Inc. Line ripple compensation for shimmerless LED driver
CN104066247B (en) * 2014-06-24 2017-02-01 浙江生辉照明有限公司 Drive circuit and dimming control method for LED lighting device

Also Published As

Publication number Publication date
CN109952813A (en) 2019-06-28
WO2018085976A1 (en) 2018-05-17
CN109952813B (en) 2021-06-22
EP3510836A4 (en) 2020-05-13
EP3510836A1 (en) 2019-07-17

Similar Documents

Publication Publication Date Title
US9247592B2 (en) Operating device with power factor correction and ripple limitation by change in operation
EP3533293B1 (en) Monitoring lighting.
US9681503B2 (en) Transformer for a lamp, LED converter, and transformer operation method
JP6274860B2 (en) Method and apparatus for limiting overshoot and undershoot currents in a lighting driver
JP5435912B2 (en) Power supply device and lighting device
US7301784B2 (en) Lighting control unit for vehicle lighting fixture
US8618748B2 (en) Power converting controller and light-emitting diode driving circuit
JP5942187B2 (en) LED lighting device, vehicle lighting device and lighting fixture using the same
JP6087937B2 (en) Driver for connecting LED to electronic ballast
JP6245433B2 (en) LED power supply device and LED lighting device
US20130257281A1 (en) Marker Lamp and Marker Lamp System
KR101440954B1 (en) Apparatus and method for led lights controls integrating smps through on-off switches
EP2782420A1 (en) Series load control apparatus and marker light apparatus
EP2571333B1 (en) Solid light-emitting element driving device and illumination device
EP3510836B1 (en) Operating device with power factor correction and ripple compensation by change in operation
US20130310997A1 (en) Power Supply Device, Luminaire, and Control Method for the Power Supply Device
US20130106311A1 (en) Power Supply Device and Lighting Device
JP6751527B2 (en) Lighting system and power supply
WO2013186656A1 (en) Adaptative safety led lighting system powered by battery plant.
JP7065411B2 (en) Lighting equipment, lighting equipment, and lighting equipment
KR20160027469A (en) Apparatus for controlling led lights without supplemental dimming wires and the control method thereof
JP2009289664A (en) Lighting device for discharge lamp, and illumination apparatus
KR20160125805A (en) LED Drive using dual current controller compatible for fluorescent ballast
JP6041198B2 (en) Solid-state light-emitting element driving device, lighting device, and lighting fixture
JP7122628B2 (en) Illumination lighting device, lighting device, and lighting fixture

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20190411

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20200415

RIC1 Information provided on ipc code assigned before grant

Ipc: H05B 45/355 20200101AFI20200407BHEP

Ipc: H05B 45/37 20200101ALI20200407BHEP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 602016077362

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: H05B0033080000

Ipc: H05B0045355000

RIC1 Information provided on ipc code assigned before grant

Ipc: H05B 45/39 20200101ALN20220701BHEP

Ipc: H05B 45/38 20200101ALN20220701BHEP

Ipc: H05B 45/375 20200101ALN20220701BHEP

Ipc: H05B 45/385 20200101ALI20220701BHEP

Ipc: H05B 45/355 20200101AFI20220701BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20220928

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1542821

Country of ref document: AT

Kind code of ref document: T

Effective date: 20230115

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602016077362

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20230104

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1542821

Country of ref document: AT

Kind code of ref document: T

Effective date: 20230104

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230104

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230530

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230104

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230504

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230404

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230104

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230104

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230104

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230104

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230104

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230104

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230104

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230504

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230405

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230104

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602016077362

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230104

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230104

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230104

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230104

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230104

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 602016077362

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230104

26N No opposition filed

Effective date: 20231005

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20231121

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230104

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20231123

Year of fee payment: 8

Ref country code: DE

Payment date: 20231127

Year of fee payment: 8