WO2018068407A1 - Procédé et dispositif de test de décharge de barre lumineuse - Google Patents

Procédé et dispositif de test de décharge de barre lumineuse Download PDF

Info

Publication number
WO2018068407A1
WO2018068407A1 PCT/CN2016/112708 CN2016112708W WO2018068407A1 WO 2018068407 A1 WO2018068407 A1 WO 2018068407A1 CN 2016112708 W CN2016112708 W CN 2016112708W WO 2018068407 A1 WO2018068407 A1 WO 2018068407A1
Authority
WO
WIPO (PCT)
Prior art keywords
light bar
discharge
voltage pulse
led
ground
Prior art date
Application number
PCT/CN2016/112708
Other languages
English (en)
Chinese (zh)
Inventor
王坚
Original Assignee
深圳Tcl数字技术有限公司
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 深圳Tcl数字技术有限公司 filed Critical 深圳Tcl数字技术有限公司
Publication of WO2018068407A1 publication Critical patent/WO2018068407A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
    • G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
    • G01R31/129—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of components or parts made of semiconducting materials; of LV components or parts

Definitions

  • the invention relates to the technical field of light bar discharge detection, in particular to a lamp bar discharge test method and device.
  • the LED drive system includes an LED driver and a light bar.
  • the circuit structure of the LED driving device is referred to FIG. 1, and the structure of the light bar is referred to FIG. 2 and FIG.
  • the LED driving device includes an electronic component such as a voltage output terminal P1, a driving output terminal P2, and an inductor Lx, a first rectifier diode Dx, an output capacitor Cx, an electronic switch K, a PWM control chip, and a driving switch tube Qx.
  • the working principle is: the inductor Lx stores energy through the input power UI.
  • the electronic switch K is disconnected, the energy storage superimposed input power UI of the inductor Lx charges the output capacitor Cx through the first rectifier diode Dx, so that the input can be input.
  • the low voltage boost becomes a high voltage output.
  • Changing the output duty cycle of the PWM control chip can change the multiple of the boost.
  • the output voltage is between 1.5 and 5 times the input voltage.
  • the light bar includes a light board 11, the first side of the light board 11 is provided with a metal layer 12, and the second side opposite to the first side is provided with a positive terminal 15, a negative terminal 16, and A plurality of LED lamps 13 connected in series are connected in series, and a connection line 14 connecting the LED lamps 13 is disposed in the lamp panel 11.
  • the positive terminal 15 of the light bar is connected to the voltage output terminal P1 of the LED driving device, and the negative terminal 16 is connected to the driving output terminal P2 of the LED driving device, so that the LED driving device can drive the light bar to operate.
  • the LED driving device driving the light bar if the insulation of the lamp plate is not good enough, the light bar will discharge to the ground through the lamp plate. Moreover, the discharge may evolve from a glow discharge to an arc discharge and generate a high temperature, which further deteriorates the insulation of the lamp panel until a carbonization of the lamp panel occurs. Therefore, before the LED drive system is put into use, it is necessary to perform a discharge test on the light bar.
  • the main object of the present invention is to provide a lamp strip discharge test method aimed at completing a discharge test of a light bar.
  • the present invention provides a light bar discharge test method
  • the light bar includes a light board, and the first side of the light board is provided with a metal layer, and the metal layer is grounded through a ballast device.
  • the second side opposite to the first side is mounted with a plurality of LED lamps connected in series in series, and the lamp panel is provided with a connection line connecting the LED lamps; wherein the lamp strip discharge test method comprises the following steps:
  • the present invention further provides a light bar discharge test device, wherein the first side of the light panel is provided with a metal layer, the metal layer is grounded, and the second side opposite to the first side is mounted with a plurality of a LED lamp connected in series, wherein the lamp panel is provided with a connection line connecting each of the LED lamps; wherein the lamp bar discharge test device comprises: a high voltage pulse output module, configured to receive the LED driver to drive the light bar to work a first signal, a high voltage pulse is outputted to the connection line to discharge the LED lamp to the ground; and a current adjustment module is configured to control the second signal when the LED lamp is discharged to the ground The discharge current of the LED lamp to the ground gradually increases; the high voltage pulse output module is further configured to stop outputting a high voltage pulse to the connection line when detecting that the LED lamp generates a self-sustaining discharge to the ground.
  • a high voltage pulse output module configured to receive the LED driver to drive the light bar to work a first signal, a high voltage pulse is outputted to the connection line to
  • the light bar discharge test device further includes a ballast device, an input end of the ballast device is connected to the metal layer, and an output end of the ballast device is grounded.
  • the ballast device comprises a potentiometer
  • the input of the potentiometer is an input of the ballast device
  • the output of the potentiometer is an output of the ballast device.
  • the light bar discharge testing device further includes: an LED driving device protection module, configured to cut off a high voltage pulse into the first signal when receiving the first signal that the LED driving device drives the light bar to work The path of the LED driver.
  • an LED driving device protection module configured to cut off a high voltage pulse into the first signal when receiving the first signal that the LED driving device drives the light bar to work The path of the LED driver.
  • the LED driving device protection module comprises a first diode, an anode of the first diode is connected to a voltage output end of the LED driving device, a cathode of the first diode is The positive terminal of the light bar is connected.
  • the LED driver protection module further includes a second diode, an anode of the second diode is connected to the ballast device, and a cathode of the second diode is grounded.
  • the high voltage pulse output module comprises a voltage input terminal, a voltage output terminal, a current limiting resistor, a second rectifier diode, a charging capacitor, a solid discharge tube and a transformer having a primary winding and a secondary winding, the current limiting resistor
  • the first end is connected to the first end of the voltage input terminal
  • the second end of the current limiting resistor is connected to the anode of the second rectifier diode, the cathode of the second rectifier diode, and the solid discharge tube
  • the first end and the first end of the charging capacitor are interconnected, and the second end of the first charging capacitor is connected to the first end of the primary winding, the second end of the primary winding, the solid discharge tube
  • the second end is interconnected with the second end of the voltage input terminal; the first end of the secondary winding is coupled to the first end of the voltage output terminal, and the second end of the secondary winding is The second end of the voltage output terminal is connected.
  • the light bar discharge test device further includes: a short circuit protection module, configured to cut off an operating current of the light bar to the high voltage pulse output module when detecting a second signal of the LED lamp discharging to the ground Pathway.
  • a short circuit protection module configured to cut off an operating current of the light bar to the high voltage pulse output module when detecting a second signal of the LED lamp discharging to the ground Pathway.
  • the short circuit protection module includes a third diode, a cathode of the third diode is connected to the connection line, an anode of the third diode and an output end of the high voltage pulse output module connection.
  • the technical scheme of the present invention triggers the discharge of the LED lamp to the ground by outputting a high voltage pulse to the connection line between the adjacent two LED lamps, and after the LED lamp is discharged to the ground, the discharge current of the LED lamp to the ground is gradually increased, and the current is restored.
  • the actual discharge process of the light bar Therefore, the technical solution of the present invention can complete the test of the discharge of the light bar.
  • 1 is a schematic diagram showing the circuit structure of an embodiment of an LED driving device
  • Figure 2 is a plan view of an embodiment of a light bar
  • Figure 3 is a schematic cross-sectional view taken along line A-A of Figure 2;
  • FIG. 4 is a schematic flow chart of an embodiment of a method for testing a discharge of a light bar according to the present invention
  • FIG. 5 is a schematic diagram of functional modules of an embodiment of a light bar discharge test device according to the present invention.
  • FIG. 6 is a schematic structural diagram of a circuit of an embodiment of a light bar discharge test device according to the present invention.
  • FIG. 7 is a schematic diagram showing the circuit structure of an embodiment of the high voltage pulse generator of FIG. 6.
  • FIG. 7 is a schematic diagram showing the circuit structure of an embodiment of the high voltage pulse generator of FIG. 6.
  • Label name Label name Label name
  • Label name 10 Light 100 High voltage pulse output module D1 First diode 11 Light board 200 Current regulation module D2 Second diode 12 Metal layer Lx inductance D3 Third diode 13 LED light Dx First rectifier diode Rs Current limiting resistor 14 Cable K electronic switch Ds Second rectifier diode 15 Positive terminal Cx Output capacitor Cs Charging capacitor 16 Negative terminal Qx Drive switch T transformer 20 LED driver P1 Voltage output Lp Primary winding 30 High voltage pulse generator P2 Drive output Ls Secondary winding 31 Solid discharge tube RW Potentiometer 40 Ballast device
  • first, second, and the like in the present invention are used for the purpose of description only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. It is also within the scope of protection required by the present invention.
  • the invention provides a light bar discharge test method, and the use thereof comprises, but is not limited to, whether the insulation design of the light strip is qualified; and the protection effect of the LED drive device with the function of preventing the discharge of the light strip is checked.
  • the light bar 10 includes a light board 11 having a metal layer 12 disposed on a first side thereof, the metal layer 12 being grounded by a ballast device 40, and mounted on a second side opposite the first side There are a plurality of LED lamps 13 connected in series in series, and a connection line 14 connecting the LED lamps 13 is disposed in the lamp panel 11.
  • the above method for discharging a light bar includes the following steps:
  • the LED driving device 20 drives the light bar 10 to operate, which is a necessary and insufficient condition for the discharge phenomenon of the light bar 10. Therefore, by outputting a high voltage pulse to the connection line 14 between the adjacent two LED lamps 13, the voltage applied to the LED lamp 13 can be increased, thereby triggering the LED lamp 13 to discharge to the ground. Further, upon receiving the first signal that the LED driving device 20 drives the operation of the light bar 10, the high voltage pulse is output to the connecting line 14, and the process of discharging the light bar 10 can be more realistically restored.
  • the first signal is acquired in various manners, for example, by detecting whether there is an operating current between the positive terminal 15 and the negative terminal 16 of the light bar 10, or by detecting the light bar 10 Whether the LED lamp 13 in the light is emitted or not is obtained by detecting the voltage of the voltage output terminal P1 of the LED driving device 20, etc., and is not limited herein.
  • the high voltage pulse signal may be a periodic signal, and the amplitude of the high voltage pulse signal gradually increases during a minimum period; or, in any period, the amplitude of the high voltage pulse signal is equal.
  • the high-voltage pulse signal may also be a non-periodic signal, and the amplitude change thereof is not limited herein.
  • the second signal is acquired in various manners, for example, by detecting whether there is a discharge current between the LED lamp 13 and the ground, or by detecting the temperature of the light board 11, etc., There are no restrictions here.
  • the self-sustaining discharge of the LED lamp 13 to the ground for example, suspending the output of the high-voltage pulse to the connection line 14, and if the LED lamp 13 is still detected to discharge to the ground, the LED lamp 13 has been Produce a self-sustaining discharge to the ground.
  • the high-voltage pulse amplitude is zero, if the LED lamp 13 is detected to discharge to the ground, it indicates that the LED lamp 13 has generated a self-sustaining discharge to the ground.
  • the technical solution of the present invention triggers the discharge of the LED lamp 13 to the ground by outputting a high voltage pulse to the connection line 14 between the adjacent two LED lamps 13, and after the LED lamp 13 is discharged to the ground, the discharge current of the LED lamp 13 to the ground is gradually controlled. Increased, the actual discharge process of the light bar 10 is restored. Therefore, the technical solution of the present invention can complete the test of discharging the light bar 10.
  • the present invention also provides a light bar discharge test device.
  • the light bar 10 includes a light board 11 .
  • the first side of the light board 11 is provided with a metal layer 12 .
  • the metal layer 12 is grounded, and a plurality of second sides opposite to the first side are mounted.
  • the LED lamps 13 connected in series are connected in series, and the lamp board 11 is provided with a connecting line 14 for connecting the LED lamps 13.
  • the light bar discharge test device includes a high voltage pulse output module 100 and a current adjustment module 200;
  • the high voltage pulse output module 100 is configured to output a high voltage pulse to the connection line 14 when the LED driving device 20 receives the first signal of the operation of the light bar 10 to discharge the LED lamp 13 to the ground;
  • the LED driving device 20 drives the light bar 10 to operate, which is a necessary and insufficient condition for the discharge phenomenon of the light bar 10. Therefore, by outputting a high voltage pulse to the connection line 14 between the adjacent two LED lamps 13, the voltage applied to the LED lamp 13 can be increased, thereby triggering the LED lamp 13 to discharge to the ground. Further, upon receiving the first signal that the LED driving device 20 drives the operation of the light bar 10, the high voltage pulse is output to the connecting line 14, and the process of discharging the light bar 10 can be more realistically restored.
  • the first signal is acquired in various manners, for example, by detecting whether there is an operating current between the positive terminal 15 and the negative terminal 16 of the light bar 10, or by detecting the light bar 10 Whether the LED lamp 13 in the light is emitted or not is obtained by detecting the voltage of the voltage output terminal P1 of the LED driving device 20, etc., and is not limited herein.
  • the high voltage pulse signal may be a periodic signal, and the amplitude of the high voltage pulse signal gradually increases during a minimum period; or, in any period, the amplitude of the high voltage pulse signal is equal.
  • the high-voltage pulse signal may also be a non-periodic signal, and the amplitude change thereof is not limited herein.
  • the current adjustment module 200 is configured to control the discharge current of the LED lamp 13 to the ground to gradually increase when detecting the second signal of the LED lamp 13 discharging to the ground;
  • the second signal is acquired in various manners, for example, by detecting whether there is a discharge current between the LED lamp 13 and the ground, or by detecting the temperature of the light board 11, etc., There are no restrictions here.
  • the high-voltage pulse output module 100 is further configured to stop outputting a high-voltage pulse to the connection line 14 when detecting that the LED lamp 13 generates a self-sustaining discharge to the ground.
  • the high-voltage pulse output module 100 is suspended to output a high-voltage pulse to the connection line 14, and if the LED lamp 13 is still detected to discharge to the ground, At this time, the LED lamp 13 has generated a self-sustaining discharge to the ground.
  • the high-voltage pulse output value outputted by the high-voltage pulse output module 100 is zero, if the LED lamp 13 is detected to discharge to the ground, it indicates that the LED lamp 13 has generated a self-sustaining discharge to the ground.
  • the technical solution of the present invention outputs a high voltage pulse to the connection line 14 between the adjacent two LED lamps 13 through the high voltage pulse output module 100 to trigger the LED lamp 13 to discharge to the ground, and after the LED lamp 13 is discharged to the ground, the LED lamp 13 is controlled.
  • the discharge current of the ground gradually increases, and the actual discharge process of the light bar 10 is restored. Therefore, the technical solution of the present invention can complete the test of discharging the light bar 10.
  • the fire is caused by the excessive discharge current of the LED lamp 13 to the ground, and generally, between the metal layer 12 of the light bar 10 and the ground.
  • a ballast device 40 is provided.
  • the discharge current of the LED lamp 13 to the ground can be adjusted by the ballast device 40.
  • the ballast device 40 is a potentiometer RW, the input end of the potentiometer RW is connected to the metal layer 12, and the output end of the potentiometer RW is grounded.
  • the ballast device 40 may be a resistor module in which a plurality of resistors (not shown) are connected in parallel with a series connection structure of a corresponding control switch (not shown). In this way, the resistance of the resistor module can be changed by changing the on state of the control switch.
  • the use of the potentiometer RW as the ballast device 40 simplifies the device structure and saves costs.
  • the above-mentioned light bar discharge testing device further includes an LED driving device protection module (not shown) for cutting off the high-voltage pulse injection into the LED driving when receiving the first signal that the LED driving device 20 drives the light bar 10 to work.
  • the passage of device 20 The passage of device 20.
  • the high voltage pulse when the amplitude of the high voltage pulse outputted by the high voltage pulse output module 100 is higher than the voltage amplitude outputted by the voltage output terminal P1 of the LED driving device 20, the high voltage pulse may be injected into the LED through the LED lamp 13 and the positive terminal 15.
  • the drive unit 20, in turn, causes damage to the LED drive unit 20.
  • the path of the high voltage pulse injected into the LED driving device 20 is cut off, and the LED driving device 20 can be protected.
  • the LED driving device protection module includes a first diode D1, and an anode of the first diode D1 is connected to a voltage output terminal P1 of the LED driving device 20, and a cathode of the first diode D1 is The positive terminal 15 of the light bar 10 is connected.
  • the diode has a single-conductivity.
  • the first diode D1 is forward-conducting; when the high-voltage pulse output module 100 outputs a high-voltage pulse to the connecting line 14, the first Diode D1 is reverse turned off.
  • the high voltage pulse output from the high voltage pulse output module 100 is not injected into the LED driving device 20 through the LED lamp 13 and the positive terminal 15.
  • the LED driver protection module may further include a device having a unidirectional conduction property such as a triode, which is not limited herein.
  • the LED driving device protection module further includes a second diode D2, the anode of the second diode D2 is connected to the ballast device 40, and the cathode of the second diode D2 is grounded.
  • the second diode D2 can ensure that the discharge current of the light bar 10 flows to the ground while preventing the high voltage pulse from being poured to the LED driving device.
  • the above-mentioned light bar discharge test device further includes: a short circuit protection module (not shown) for cutting off the operating current of the light bar 10 to the high voltage pulse output when detecting the second signal of the LED lamp 13 discharging to the ground The path of module 100.
  • a short circuit protection module (not shown) for cutting off the operating current of the light bar 10 to the high voltage pulse output when detecting the second signal of the LED lamp 13 discharging to the ground The path of module 100.
  • the high voltage pulse output module 100 includes a high voltage pulse generator 30, and the circuit structure of the high voltage pulse generator 30 is as shown in FIG.
  • the high voltage pulse generator 30 includes a current limiting resistor Rs, a second rectifying diode Ds, a charging capacitor Cs, a solid discharge tube 31, and a transformer T having a primary coil Lp and a secondary coil Ls.
  • the charging capacitor Cs is charged by the current limiting resistor Rs and the second rectifier diode Ds.
  • the solid discharge tube 31 undergoes avalanche breakdown. And conduct.
  • the charging capacitor Cs resonates through the solid discharge tube 31 and the primary coil Lp of the transformer T, so that the primary of the transformer T generates a high voltage, and the solid discharge tube 31 is turned off after the discharge of the charging capacitor Cs is completed.
  • the secondary winding Ls of the transformer T generates a high voltage pulse output.
  • the size of the charging capacitor Cs can determine the energy intensity of the output high voltage pulse. Changing the voltage amplitude of the AC input AC can change the intermittent time of the output high voltage pulse. Changing the ratio of the primary winding Lp of the transformer T to the secondary coil Ls can change the level of the output high voltage pulse. .
  • the operating current of the light bar 10 may flow to the ground through the secondary coil Ls of the high voltage pulse generator 30, which is very dangerous.
  • the second signal of the LED lamp 13 discharging to the ground is detected, the operating current of the light bar 10 is cut off to the path of the high voltage pulse output module, and the operating current of the light bar 10 can be prevented from flowing to the secondary coil Ls of the high voltage pulse generator 30. Ground.
  • the short circuit protection module includes a third diode D3, the cathode of the third diode D3 is connected to the connection line 14, the anode of the third diode D3 and the output end of the high voltage pulse output module 100. connection.
  • the diode has a single-conductivity.
  • the third diode D3 is forward-conducting; if the operating current of the light bar 10 is to pass the high-voltage pulse generator 30
  • the stage coil Ls flows to the ground, and the third diode D3 is reversely turned off.
  • the high voltage pulse generator 30 outputs a high voltage pulse to the connection line 14
  • the operating current of the light bar 10 does not flow to the ground through the secondary coil Ls of the high voltage pulse generator 30.
  • the short circuit protection module may further include a device having a unidirectional conduction property such as a triode, which is not limited herein.
  • the LED driving device 20 is caused to drive the light bar 10 to operate.
  • the high voltage pulse generator 30 is caused to output an intermittent high voltage pulse to the connection line 14, and its amplitude is gradually increased to discharge the LED lamp 13 to the ground.
  • the resistance of the potentiometer RW is reduced, and the discharge current of the LED lamp 13 to the ground is increased to cause the LED lamp 13 to generate a self-sustaining discharge.
  • the high voltage pulse generator 30 is turned off to detect the effect of the light strip discharge on the LED drive system.

Landscapes

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

Abstract

L'invention concerne un procédé et un dispositif de test de décharge de barre lumineuse (10). Le procédé de test de décharge de barre lumineuse (10) comprend : lors de la réception d'un premier signal indiquant qu'un dispositif d'entraînement de DEL (20) commande le fonctionnement de la barre lumineuse (10), l'émission en sortie d'une impulsion haute tension à une ligne de connexion (14), de telle sorte qu'une lampe à DEL (13) effectue une décharge de mise à la terre (S100) ; lors de la détection d'un second signal indiquant que la lampe à DEL (13) effectue une décharge de mise à la terre, la commande du courant de décharge de mise à la terre de la lampe à DEL (13) de telle sorte que cette dernière soit progressivement augmentée (S200) ; et lors de la détection que la lampe à DEL (13) effectue une décharge de mise à la terre auto-entretenue, l'arrêt de l'émission en sortie de l'impulsion haute tension vers la ligne de connexion (14) (S300). Le test de décharge de la barre lumineuse (10) peut être effectué.
PCT/CN2016/112708 2016-10-13 2016-12-28 Procédé et dispositif de test de décharge de barre lumineuse WO2018068407A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610895065.6 2016-10-13
CN201610895065.6A CN106501687B (zh) 2016-10-13 2016-10-13 灯条放电测试方法及装置

Publications (1)

Publication Number Publication Date
WO2018068407A1 true WO2018068407A1 (fr) 2018-04-19

Family

ID=58294085

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/112708 WO2018068407A1 (fr) 2016-10-13 2016-12-28 Procédé et dispositif de test de décharge de barre lumineuse

Country Status (2)

Country Link
CN (1) CN106501687B (fr)
WO (1) WO2018068407A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006331802A (ja) * 2005-05-25 2006-12-07 Sharp Corp 放電検出装置およびこれを備えたイオン発生装置
CN101868079A (zh) * 2009-04-17 2010-10-20 敦泰科技(深圳)有限公司 用于驱动大功率led的全程监控高压恒流驱动装置
CN103162259A (zh) * 2013-03-01 2013-06-19 河南华阳光电照明技术有限公司 一种led灯具通过安规高压测试的方法及一种高耐压led灯具
CN103542386A (zh) * 2013-11-01 2014-01-29 深圳市九洲光电科技有限公司 Led基板及耐高压led灯具
CN103841720A (zh) * 2012-11-23 2014-06-04 瑞鼎科技股份有限公司 发光二极管驱动装置及其运作方法
CN104280690A (zh) * 2013-07-12 2015-01-14 海洋王（东莞）照明科技有限公司 一种灯具放电时间测试电路
CN204254338U (zh) * 2014-12-11 2015-04-08 九泰光电科技有限公司 Led照明灯具
CN104569864A (zh) * 2015-01-30 2015-04-29 京东方光科技有限公司 点灯治具和点灯方法
CN204593001U (zh) * 2015-04-08 2015-08-26 深圳市聚飞光电股份有限公司 一种led灯条和led灯条测试系统

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002022790A (ja) * 2000-07-04 2002-01-23 Hitachi Ltd ガス絶縁機器の部分放電検出装置
CN101523542A (zh) * 2006-10-03 2009-09-02 松下电器产业株式会社 评价系统、点灯装置以及图像显示装置
CN201903621U (zh) * 2010-12-08 2011-07-20 泰金宝光电(苏州)有限公司 发光二极管灯具的高压测试设备
CN202617430U (zh) * 2012-05-15 2012-12-19 湖南省天赐阳光太阳能有限责任公司 太阳能led路灯控制系统
CN103293489A (zh) * 2012-09-24 2013-09-11 天津思博科科技发展有限公司 一种led灯具多功能综合测试设备
US20140195175A1 (en) * 2013-01-04 2014-07-10 International Business Machines Corporation Measuring dielectric breakdown in a dynamic mode
CN103645354B (zh) * 2013-11-25 2017-01-11 大连亮景光电有限公司 一种led日光灯检测方法和支架
CN203894366U (zh) * 2014-04-30 2014-10-22 深圳市金钺科技有限公司 全自动耐压测试机
CN104076269A (zh) * 2014-07-22 2014-10-01 安徽卓越电气有限公司 一种用于铝基线路板的led耐压测试保护电路
CN204925330U (zh) * 2015-08-31 2015-12-30 台湾动力检测科技股份有限公司 耐静电自动筛选系统

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006331802A (ja) * 2005-05-25 2006-12-07 Sharp Corp 放電検出装置およびこれを備えたイオン発生装置
CN101868079A (zh) * 2009-04-17 2010-10-20 敦泰科技(深圳)有限公司 用于驱动大功率led的全程监控高压恒流驱动装置
CN103841720A (zh) * 2012-11-23 2014-06-04 瑞鼎科技股份有限公司 发光二极管驱动装置及其运作方法
CN103162259A (zh) * 2013-03-01 2013-06-19 河南华阳光电照明技术有限公司 一种led灯具通过安规高压测试的方法及一种高耐压led灯具
CN104280690A (zh) * 2013-07-12 2015-01-14 海洋王（东莞）照明科技有限公司 一种灯具放电时间测试电路
CN103542386A (zh) * 2013-11-01 2014-01-29 深圳市九洲光电科技有限公司 Led基板及耐高压led灯具
CN204254338U (zh) * 2014-12-11 2015-04-08 九泰光电科技有限公司 Led照明灯具
CN104569864A (zh) * 2015-01-30 2015-04-29 京东方光科技有限公司 点灯治具和点灯方法
CN204593001U (zh) * 2015-04-08 2015-08-26 深圳市聚飞光电股份有限公司 一种led灯条和led灯条测试系统

Also Published As

Publication number Publication date
CN106501687A (zh) 2017-03-15
CN106501687B (zh) 2019-08-27

Similar Documents

Publication Publication Date Title
CN100539380C (zh) 直流-交流变换装置、其控制器ic及采用该直流-交流变换装置的电子机器
JP5942314B2 (ja) 点灯装置および、これを用いた照明器具
US7394671B2 (en) Controller IC, DC-AC conversion apparatus, and parallel running system of DC-AC conversion apparatuses
WO2014189298A1 (fr) Appareil de commande de diode électroluminescente
WO2014153787A1 (fr) Circuit de pilotage de rétroéclairage à led et module de rétroéclairage
WO2014058196A2 (fr) Appareil d'alimentation de diode électroluminescente et procédé d'alimentation pour l'alimentation continue d'une diode électroluminescente
WO2011052834A1 (fr) Dispositif de module del à commande à courant constant
WO2014025159A2 (fr) Système gradateur d'éclairage mettant en œuvre un dispositif électroluminescent
WO2014126392A1 (fr) Circuit d'alimentation électrique permettant de modifier la fréquence de scintillement d'une diode électroluminescente
WO2017156891A1 (fr) Circuit de gradation mixte à commande par courant alternatif et télévision
WO2014148767A1 (fr) Circuit de pilotage de del utilisant des diodes en double pont et dispositif d'éclairage à del le comprenant
WO2015039561A1 (fr) Circuit d'attaque et de gradation d'intensité de del et procédé de configuration
WO2018227965A1 (fr) Appareil d'alimentation électrique et système d'éclairage
KR101553746B1 (ko) 전원 장치, 조명 장치, 이를 이용하는 조명 기구 및 차량
WO2013133547A1 (fr) Circuit de commande de led qui présente une fonction d'amélioration du rendement
WO2010058923A2 (fr) Dispositif lumineux à courant alternatif, son dispositif d'attaque et procédé d'attaque associé
CN107926101B (zh) 发光元件驱动设备
US7183726B2 (en) Cold cathode fluorescent lamp drive apparatus and method
US7446483B2 (en) Backlight light source drive device
WO2017043756A1 (fr) Dispositif et procédé d'attaque de del du type à compensation du facteur de puissance
WO2018068407A1 (fr) Procédé et dispositif de test de décharge de barre lumineuse
WO2012011700A9 (fr) Unité d'alimentation électrique adaptative, module à del intelligent et dispositif pour tester des modules à del permettant de tester ladite unité
WO2018056553A1 (fr) Super-condensateur pourvu d'un connecteur série et parallèle
US7227316B2 (en) Protective and measure device for multiple cold cathode fluorescent lamps
JP2003197556A (ja) 光加熱装置

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: 16918908

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1295A DATED 23/08/2019)

122 Ep: pct application non-entry in european phase

Ref document number: 16918908

Country of ref document: EP

Kind code of ref document: A1