WO2015050343A1 - Appareil et procédé permettant de commander l'éclairage d'un élément électroluminescent au moyen d'une commande de commutation - Google Patents

Appareil et procédé permettant de commander l'éclairage d'un élément électroluminescent au moyen d'une commande de commutation Download PDF

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Publication number
WO2015050343A1
WO2015050343A1 PCT/KR2014/009097 KR2014009097W WO2015050343A1 WO 2015050343 A1 WO2015050343 A1 WO 2015050343A1 KR 2014009097 W KR2014009097 W KR 2014009097W WO 2015050343 A1 WO2015050343 A1 WO 2015050343A1
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Prior art keywords
light emitting
voltage
current
wave input
unit
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PCT/KR2014/009097
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English (en)
Korean (ko)
Inventor
류태하
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주식회사 디엠비테크놀로지
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Publication of WO2015050343A1 publication Critical patent/WO2015050343A1/fr

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    • 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]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
    • 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]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • H05B45/48—Details of LED load circuits with an active control inside an LED matrix having LEDs organised in strings and incorporating parallel shunting devices
    • 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

Definitions

  • This embodiment relates to an apparatus and method for controlling illumination of a light emitting device by switching control.
  • FIG. 1 is a view showing an example of a lighting control device for controlling the light emitting current of the LED lighting device.
  • one end of the LED light emitting unit 110 having one or more LEDs connected in series to the rectified voltage output terminal output after the AC voltage is full-wave rectified is connected to the other end of the LED light emitting unit 110.
  • the light emitting current source 120 is connected between the GND. 1 is a method in which the rectified voltage is driven by the output current of the light emitting current source 120 when the rectified voltage is greater than the forward conduction voltage of the LED light emitting unit 110 connected in series.
  • the number of series connections of the LED light emitting unit 110 in order to allow the light emission current to flow in a wide range of the rectified voltage level, the number of series connections of the LED light emitting unit 110 must be limited to have a low forward conduction voltage. However, in such a case, since most of the rectified voltage is applied to the light emitting current source 120, the efficiency is very low. On the contrary, in order to increase the efficiency, when the rectified voltage range in which the LED light emitting unit 110 operates is limited to a high range, a range of voltage levels that can control the current by the light emitting current source 120 is narrowed to form a desired light emitting current. Difficulties occur in making the input current characteristics such as power factor and THD (Total Harmonic Distortion) cannot be improved.
  • THD Total Harmonic Distortion
  • the present embodiment has a main purpose to increase power efficiency by reducing power consumption in an illuminating device driving a light emitting device, and to improve power factor and harmonics of the illuminating device.
  • the apparatus for controlling the illumination of a light emitting element by switching control the first to the Nth (wherein N? 2) a light emitting unit including a light emitting module unit and connected in series to the first to Nth light emitting module units; A switching unit including N ⁇ 1 switches, each connecting one end of the K th switch to a contact between the K th light emitting module unit and a K + 1 th light emitting module unit; A light emitting current source having one end connected to the other end of the light emitting part and the other ends of the N-1 switches to generate a light emitting current flowing in the light emitting part; And a current path selector for controlling the switching of the N-1 switches to control the flow of the light emitting current flowing through the light emitting unit.
  • the current path selector the K-th switch is turned OFF at the moment when the voltage of the half-wave input is changed from the state of lower than the forward conduction voltage of the first to K + 1th light emitting module unit to a high state
  • the K-th switch may be controlled to be in an ON state when the voltage of the half-wave input is changed from a higher state to a lower state than the forward conduction voltage of the first to K + 1th light emitting module units.
  • the current path selector may control the K th switch to be in an ON state while the voltage of the half wave input is less than the forward conduction voltage of the first to K + 1th light emitting module units, and the voltage of the half wave input may be
  • the K th switch may be controlled to be in an OFF state while the first through K + 1 light emitting module units are larger than the forward conduction voltage.
  • the light emitting device lighting control device may further include a light emitting current controller configured to receive the half wave input and control a current level of the light emitting current output from the light emitting current source according to the voltage magnitude of the half wave input.
  • the current level of the output driving current may be controlled to be proportional to the voltage level of the half wave input.
  • the light emission current controller may maintain the current level constant when the voltage of the half wave input exceeds a first threshold value, and when the voltage of the half wave input exceeds a second threshold value, It is also possible to use a method of reducing the current level in proportion to the magnitude of the voltage.
  • a half-wave input is applied to one end of the light emitting unit connected in series from the first to the Nth (where N ⁇ 2) light emitting module units
  • N-1 switches are provided to include K-th (where, 1 ⁇ K ⁇ N-1) A switch for connecting one end of the K-th switch to the contact point between the light emitting module unit and the K + 1th light emitting module unit, the other end of the light emitting part and the other end of the N-1 switches, respectively.
  • the half-wave input voltage is the forward conduction voltage of the first to K + 1 light emitting module unit Controlling the K-th switch to be in an OFF state at a moment of changing from a lower state to a high state; And controlling the K-th switch to be in an ON state when the voltage of the half-wave input is changed from a higher state to a lower state than a forward conduction voltage of the first to K + 1th light emitting module units.
  • the current can be controlled to enable not only an economical lighting control circuit configuration but also light emission to have a shape similar to the waveform of the input rectified voltage.
  • the waveform of the drive current of the module unit there is an effect of improving the power factor and the harmonics of the light emitting device illumination device.
  • FIG. 1 is a view showing an example of a lighting control device for controlling the light emitting current of the LED lighting device.
  • FIG. 2 is a diagram illustrating an embodiment of a lighting control device for controlling the light emitting current of the LED lighting device.
  • FIG. 3 is a view showing a light emitting device lighting control apparatus according to an embodiment of the present invention.
  • FIG. 5 is a diagram illustrating ON / OFF signals of the switches in the switching unit 330 during the rise and fall of the half-wave rectified voltage based on the forward conduction voltage of the light emitting unit 320 having the four stages of FIG. 4.
  • FIG. 6 is a diagram illustrating a method of controlling the light emitting current source 340 by the light emitting current controller 360 to have a high power factor and high harmonics characteristics of an input current according to an exemplary embodiment of the present invention.
  • FIG. 7 is a diagram illustrating an example of a current source control signal generated according to a magnitude as a rectified voltage.
  • FIG. 8 is a graph illustrating a magnitude of a light emitting current generated according to a rectified voltage.
  • FIG. 9 is a flowchart illustrating a light emitting device lighting control method according to an embodiment of the present invention.
  • FIG. 2 is a view showing an example of a lighting control device for controlling the light emitting current of the LED lighting device.
  • the lighting control device 200 includes a full-wave rectifying unit 210, an LED light emitting unit 220, a light emitting current control unit 230, and a current source unit 240.
  • the full-wave rectifying unit 210 generates a half-wave rectified voltage by full-wave rectifying the AC power.
  • the LED light emitting unit 220 into which the full-wave rectified voltage is input, has two or more light emitting current paths, and each light source current path receives a current source control signal generated by the light emitting current controller 230 to control the light emitting current (ie, 1st stage current source, 2nd stage current source, 3rd stage current source, ..., N stage current source) are connected to GND.
  • the light emission current control unit 230 generates a light emission current by a current source (that is, a first stage current source) in the light emission current path near the terminal to which the rectified voltage is applied at the low rectified voltage output from the full-wave rectifying unit 210. Let it flow As the rectified voltage increases, the light emission current controller 230 turns off the current source of the light emitting current path close to the terminal to which the rectified voltage is gradually applied, and turns on the current source of the next light current path to allow the light current to flow.
  • a current source that is, a first stage current source
  • the number of LEDs of the LED light emitting unit 220 connected in series on the current path formed by the current source controlled to be ON is increased.
  • the surplus voltage equal to or higher than the light emission unit forward conduction voltage is applied to the current source by the control of the light emission current controller 230, thereby reducing power loss.
  • a circuit corresponding to a current source that is, a first stage current source, a second stage current source, a three stage current source, ..., an N stage current source
  • the current source control signal by the light emission current control unit 230 is a signal for controlling the current power to improve the power factor or THD characteristics of the input current by the desired light emission current at the same time to turn ON / OFF each stage current source is a light emission current source of each stage It should be equipped every time, and all of them have to be controlled in conjunction with the luminous current control is limited.
  • FIG. 3 is a view showing a light emitting device lighting control apparatus according to an embodiment of the present invention.
  • the light emitting device lighting control device 300 includes a full-wave rectifying unit 310, a light emitting unit 320, a switching unit 330, a light emitting current source 340, and a current path.
  • the selector 350 and the light emitting current controller 360 are included.
  • the full-wave rectifying unit 310 generates a half-wave rectified voltage by full-wave rectifying the AC power.
  • the light emitting unit 320 is a first to N-th (where N ⁇ 2) that the half-wave input rectified by the full-wave rectifying unit 310 is applied to one end of the light-emitting unit 320 and generates illumination according to the half-wave input
  • N ⁇ 2 the half-wave input rectified by the full-wave rectifying unit 310 is applied to one end of the light-emitting unit 320 and generates illumination according to the half-wave input
  • the light emitting units 320 are serially connected in the order of the first to Nth light emitting module units, and each light emitting module unit may have one or more LED elements connected in series or in parallel, and the LED elements connected in series.
  • the switching unit 330 is provided with N-1 switches SW1, SW2, and SW3, and is provided at a contact point between the K-th (1 ⁇ K ⁇ N-1) light emitting module unit and the K + 1th light emitting module unit. Connect one end of each K-th switch.
  • the switching unit 330 may receive the ON / OFF signal of the current path selection unit 350 to select a path of the light emitting current.
  • the N th switch SWn may be connected between the other end of the light emitting unit 320 and one end of the light emitting current source 340.
  • the light emitting current source 340 is connected to the other end of the light emitting unit 320 and the other end of the N ⁇ 1 switches so that one end of the light emitting current source 340 is connected to control the light emitting current flowing through the light emitting unit 320.
  • the light emission current source 340 receives the current source control signal of the light emission current controller 360 and flows the light emission current having a desired size or shape regardless of the light emission current path selected by the current path selector 350.
  • the current path selector 350 controls the switching of each K-th switch (N-1 switches) to control the flow of the luminous current flowing through the light emitter 320.
  • N-1 switches the number of switches that are connected between the other end of the light emitting unit 320 and one end of the light emitting current source 340.
  • the current path selector 350 controls the N th switch SWn to always be in an ON state. desirable.
  • the light emission current controller 360 may receive the half wave input from the full wave rectifier 310 and control the current level of the light emission current output from the light emission current source 340 according to the voltage magnitude of the half wave input.
  • FIG. 5 is a forward conduction of the light emitting unit 320 including four stages of FIG. A diagram showing ON / OFF signals of the switches in the switching unit 330 during the rise and fall of the half-wave rectified voltage based on the voltages VD1, VD2, VD3, and VD4.
  • the K-th switch is turned ON while the current path selector 350 is smaller than the forward conduction voltage VD1 + ... + VD (K + 1) of the first to K + 1th light emitting module units. And the K-th switch is turned OFF while the voltage of the half-wave input is greater than the forward conduction voltage of the first to K + 1th light emitting module units.
  • the three switches SW3 are all sections except a section in which the rectified voltage rises above the light emitting unit forward conduction voltage VD1 + VD2 + VD3 + VD4 from the first stage light emitting unit 321 to the fourth stage light emitting unit 324. To be conducted at That is, in the section where the rectified voltage becomes equal to or higher than the light emitting portion forward conduction voltage from the first light emitting portion 321 to the fourth light emitting portion 324, the light is turned off.
  • the current path selector 350 has a rectified voltage of the second switch SW2 from the first stage light emitter 321 to the third stage light emitter 323. It should be conducted in the section except for the section that rises above (VD1 + VD2 + VD3). That is, in the section where the rectified voltage becomes equal to or higher than the light emission portion forward conduction voltage from the first light emission portion 321 to the third light emission portion 323, the signal is turned off.
  • the current path selector 350 has a rectified voltage of the light emitting unit forward conduction voltage from the first stage light emitting unit 321 to the second stage light emitting unit 322. It is allowed to conduct on the section except the section which rises above (VD1 + VD2). That is, in the section where the rectified voltage becomes equal to or higher than the light emitting portion forward conduction voltage from the first light emitting portion 321 to the second light emitting portion 322, the light is turned off.
  • the N th switch SWn has a rectified voltage in the forward direction of the light emitting part from the first light emitting part 321 to the N + 1 light emitting part. It is turned OFF in the section over the conduction voltage and turned on in the rest of the section.
  • the third to fourth switches SW3 to SW4 are closed. In spite of being turned on, all luminous currents flow through the luminous current path including the second switch SW2.
  • the fourth switch Even though SW4 is ON, all light emission currents flow through the third switch SW3.
  • the first switch SW1 may be turned ON or OFF during the time between 0 and t1, and since the rectified voltage does not reach the forward conduction voltage of the first stage light emitting part 321 during the time between 0 and t1, Turning on or off the switch 1 does not affect the overall operation of the light emitting unit 320.
  • the K-th switch when the K-th switch is turned on only before the K-th switch is turned off, the K-th switch may operate without any difference from the operation described with reference to FIG. Therefore, the ON time point of each of the path selection switches SW1, SW2, SW3, and SWn described in FIG. 5 (b) is one example.
  • the only driving point of the path selection switches SW1, SW2, SW3, and SWn of the present application is It is not a method, but the same switching effect can be achieved in various ways.
  • the current path selector 350 controls the K-th switch to be in an OFF state when the voltage of the half-wave input is changed from a lower state to a higher conduction voltage of the first to K + 1th light emitting module units.
  • a method of controlling the K-th switch to be in an ON state at the moment when the voltage of the half-wave input changes from a state in which the voltage of the half-wave input is higher than the forward conduction voltage of the first to K + 1th light emitting module units may be used.
  • the N-th switch SWn positioned last is always connected, the N-th switch SWn may be connected to a conductive line without being used as a switching element.
  • the path selection switches SW1, SW2, SW3, and SWn include various metals such as metal-oxide-semiconductor field-effect transistors (MOSFETs), insulated-gate bipolar transistors (IGBTs), and silicon-controlled rectifiers (SCRs). Switching elements can be used.
  • MOSFETs metal-oxide-semiconductor field-effect transistors
  • IGBTs insulated-gate bipolar transistors
  • SCRs silicon-controlled rectifiers
  • FIG. 6 is a diagram illustrating a method of controlling the light emitting current source 340 by the light emitting current controller 360 to have a high power factor and high harmonics characteristics of an input current according to an exemplary embodiment of the present invention.
  • the light emission current controller 360 receives the half wave input and controls the current level of the light emission current output from the light emission current source 340 according to the voltage level of the received half wave input.
  • the magnitude and shape of the light emitting current flowing through the light emitting unit 320 is connected to GND to control the current source generated in the light emitting current controller 360. It is controlled by the light emitting current source 340 that receives the signal. In this case, the power consumption can be greatly reduced than in the method of FIG. 1, and since one current source control signal is used as compared to controlling the current source provided for each light emitting current path of the method of FIG. Since the shape of the input current by the current can be made, it is possible to control the luminous current having high power factor and high harmonic attenuation characteristics.
  • the light emission current controller 360 generates a current source control signal proportional to the magnitude of the rectified voltage to control the size of the light emission current generated by the light emission current source 340. It can be seen from the graph of FIG. 6A that the magnitude of the luminous current generated in the luminous current source 340 is proportional to the magnitude of the rectified voltage.
  • each path section (SW1 path section, SW2 path section shown in FIG. , SW3 path section, SW4 path section), regardless of which luminous current path is selected and the luminous current flows, the luminous current or the input current by the luminous current is approximated to the rectified voltage by the current control of the luminous current source 340.
  • the current flows in a shape nearly approximated to the rectified voltage, it may have an excellent power factor and harmonic characteristics as compared to the stepped light emitting current form or the light emitting current form using the same.
  • FIG. 7 is a diagram illustrating an example of a current source control signal generated according to a magnitude as a rectified voltage.
  • the current source control signal is divided into a normal input voltage range, an excessive input voltage range, an extremely excessive input voltage range, and the like by determining the magnitude of the rectified voltage and the emission current flowing through the emission current source 340.
  • the current source control signal is generated such that the magnitude of the current source control signal generated by the light emission current controller 360 is proportional to the magnitude of the rectified voltage.
  • the magnitude of the luminous current generated from the luminous current source 340 is controlled to be proportional to the magnitude of the rectified voltage.
  • the magnitude of the current source control signal generated by the light emission current controller 360 is independent of the magnitude of the rectified voltage.
  • a current source control signal is generated to maintain a constant level so that the magnitude of the luminous current generated from the luminous current source 340 is controlled to maintain a constant level regardless of the magnitude of the rectified voltage.
  • the magnitude of the current source control signal generated by the luminous current control unit 360 is inversely proportional to the magnitude of the rectified voltage.
  • a current source control signal is generated such that the magnitude of the luminous current generated at 340 is inversely proportional to the magnitude of the rectified voltage.
  • FIG. 8 is a graph illustrating a magnitude of a light emitting current generated according to a rectified voltage.
  • the light emission current control unit 360 may limit the size of the light emission current generated from the light emission current source 340 to protect the internal circuit. . That is, in the normal input voltage range (less than V1), in order to have the high power factor or high harmonic characteristics of the input current described above, the light emission current increases as the rectified voltage increases in proportion to the shape of the rectified voltage.
  • the light emission current control unit 360 maintains the light emission current constant when an excessive amount of input voltage is applied (between V1 and V2) to prevent the internal circuit protection operation from being reduced in the amount of output light emitted from the light emission unit 22.
  • V2 and above In the extremely excessive voltage range (V2 and above), in order to protect the internal driving circuit, the larger the rectified voltage, the lower the luminous current as opposed to the operation of the normal input voltage range, thereby reducing the power consumption of the driving circuit. Prevent increase.
  • the embodiment of the present invention forms a light emitting current path that can be connected to the light emitting current source 340 for each single light emitting unit for efficient light emitting current control in the LED lighting device.
  • each path is connected or disconnected as a switch using a light emission current path selection signal (ON / OFF) of the current path selector 350 to each light emission current path, and receives a current source control signal from the light emission current controller 360.
  • a light emitting driving circuit of a new LED lighting apparatus which is composed of one light emitting current source 340 for controlling the size or shape of a light emitting current.
  • it can be controlled to have the maximum power factor and the best harmonic characteristics of the input current, it is possible to protect the drive circuit at the input voltage of excessive rectified voltage.
  • FIG. 9 is a flowchart illustrating a light emitting device lighting control method according to an embodiment of the present invention.
  • a half-wave input is applied to one end of the first to Nth (where N ⁇ 2) light emitting modules.
  • the light emitting unit 320 connected in series in the unit order, and N-1 switches are provided to the contacts between the light emitting module unit K (1 ⁇ K ⁇ N-1) and the K + 1 light emitting module unit, respectively K
  • a light emitting current source 340 which is connected to the other end of the switching unit 330 and the light emitting unit 320 that connects one end of the switch and the other end of the N-1 switches to generate a light emitting current flowing through the light emitting unit 320.
  • the light emitting device lighting control device 300 is provided.
  • the current path selector 350 may change from a state in which the half-wave input voltage is lower than the forward conduction voltage of the first to K + 1th light emitting module units.
  • the K-th switch is controlled to be in an OFF state (S910) and when the voltage of the half-wave input is changed from a state higher than the forward conduction voltage of the first to K + 1th light emitting module unit, the K-th switch is in an ON state It includes the step of controlling to be (S520).
  • the K-th switch is maintained in the ON state for a time when the voltage of the half-wave input is smaller than the forward conduction voltage of the first to K + 1th light emitting module units. You can also control it.
  • the light emitting device lighting control method may further include controlling the output current level of the light emitting current output from the light emitting current source 340 to be proportional to the voltage level of the half wave input (S930).
  • the light emitting device lighting control method may further include maintaining a constant output current level of the light emitting current source 340 when the voltage of the half wave input exceeds a first threshold value (S940).
  • the method may further include reducing the output current level of the light emitting current source 340 inversely proportional to the magnitude of the voltage of the half wave input when the voltage of the second voltage exceeds the preset second threshold.
  • FIG. 9 processes S910 to S950 are described as being sequentially executed. However, this is merely illustrative of the technical idea of the exemplary embodiment of the present invention. In other words, one of ordinary skill in the art to which an embodiment of the present invention belongs may execute the process described in FIG. 9 by changing the order shown in FIG. 9 without departing from the essential characteristics of the embodiment of the present invention, or two of steps S910 to S950. Since the above processes may be variously modified and modified to be executed in parallel, FIG. 9 is not limited to the time series order.
  • 321 one-stage light emitting unit 322: two-stage light emitting unit
  • 323 three-stage light emitting unit 324: four-stage light emitting unit
  • switching unit 350 current path selection unit

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Abstract

L'invention porte sur un appareil permettant de commander l'éclairage d'un élément électroluminescent et sur un procédé permettant de commander ce dernier, l'appareil comprenant : une unité électroluminescente à une extrémité duquel est appliquée une entrée de demi-onde et qui comprend de une à N<sp /> (où N ≥ 2) unités de module électroluminescent produisant un éclairage selon l'entrée de demi-onde, la une à N<sp /> unités de module électroluminescent étant raccordées en série de façon séquentielle, une unité de commutation comprenant N-1 commutateurs et ayant une extrémité du Kième (où 1 ≤ K ≤ N-1) commutateur raccordée au point de contact entre les Kième et (K+1)ième unités de module électroluminescent ; une source de courant électroluminescent dont une extrémité est raccordée à l'autre extrémité de l'unité électroluminescente et à l'autre extrémité des N-1 commutateurs et qui produit un courant électroluminescent qui circule à travers l'unité électroluminescente ; et une unité de sélection de trajet de courant destinée à commander la commutation des N-1 commutateurs de sorte à réguler la circulation du courant électroluminescent à travers l'unité électroluminescente.
PCT/KR2014/009097 2013-10-01 2014-09-29 Appareil et procédé permettant de commander l'éclairage d'un élément électroluminescent au moyen d'une commande de commutation WO2015050343A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021142026A1 (fr) 2020-01-07 2021-07-15 Revolution Medicines, Inc. Dosage d'inhibiteurs de shp2 et méthodes de traitement du cancer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170006475A (ko) * 2015-07-08 2017-01-18 유수근 SMPS (Switching Mode Power Supply) 기반의 LED 구동장치 및 구동방법

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100942234B1 (ko) * 2009-07-23 2010-02-12 (주)로그인디지탈 발광다이오드 조명장치
KR20110005566A (ko) * 2009-07-10 2011-01-18 주식회사 현대엘이디 과전압과 과전류 보호 및 고효율 온도 보상 정전류 회로
KR101273384B1 (ko) * 2011-09-15 2013-06-11 (주)포인트텍 다채널 발광 다이오드 구동 장치

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110005566A (ko) * 2009-07-10 2011-01-18 주식회사 현대엘이디 과전압과 과전류 보호 및 고효율 온도 보상 정전류 회로
KR100942234B1 (ko) * 2009-07-23 2010-02-12 (주)로그인디지탈 발광다이오드 조명장치
KR101273384B1 (ko) * 2011-09-15 2013-06-11 (주)포인트텍 다채널 발광 다이오드 구동 장치

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021142026A1 (fr) 2020-01-07 2021-07-15 Revolution Medicines, Inc. Dosage d'inhibiteurs de shp2 et méthodes de traitement du cancer

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