CN104122506A - LED lamp driving power test method - Google Patents
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Abstract
本发明实施例公开了一种LED灯驱动电源测试方法，包括：模拟LED驱动电源的各种开路状态，对LED驱动电源进行开路测试，若各种开路状态下所述驱动电源性能均检测正常，则测试通过。本发明能够在LED灯出厂前测试出LED灯驱动电源在开路状态下是否会造成驱动电源的损坏，防止不合格的LED灯流入市场，减少售后服务成本。
The embodiment of the present invention discloses a method for testing LED lamp driving power, which includes: simulating various open-circuit states of the LED driving power, and performing an open-circuit test on the LED driving power. If the performance of the driving power is detected to be normal under various open-circuit states, Then the test passes. The invention can test whether the driving power of the LED lamp will cause damage to the driving power in an open circuit state before the LED lamp leaves the factory, prevent unqualified LED lamps from flowing into the market, and reduce after-sales service costs.
Description
技术领域technical field
本发明涉及电路测试领域，具体涉及一种LED灯驱动电源测试方法。The invention relates to the field of circuit testing, in particular to a testing method for an LED lamp driving power supply.
背景技术Background technique
发光二极管（Light Emitting Diode，LED）由于其具有寿命长、光效高、辐射低、功耗低的优点近年来被推广应用。LED灯的应用场合广泛，公路、隧道、厂房、商场、居民小区等都可以见到它的身影。Light Emitting Diode (LED) has been popularized and applied in recent years due to its advantages of long life, high luminous efficiency, low radiation and low power consumption. LED lights are widely used in roads, tunnels, factories, shopping malls, residential areas and so on.
LED灯包括驱动电源和LED，LED为驱动电源的负载。由于单颗LED功率一般较小，大功率LED灯需要多颗LED串联工作，由于LED灯通常是焊接在印制板上，LED灯可能出现虚焊，或由于振动、温度变化等情况导致LED灯与焊点接触不良，在这些情况下LED驱动电源就会出现负载开路，导致LED驱动电源损坏。The LED lamp includes a driving power supply and an LED, and the LED is a load of the driving power supply. Because the power of a single LED is generally small, high-power LED lights require multiple LEDs to work in series. Since LED lights are usually welded on printed boards, LED lights may have false soldering, or LED lights may be damaged due to vibration, temperature changes, etc. Poor contact with the solder joints, in these cases, the LED drive power will have a load open circuit, resulting in damage to the LED drive power.
发明内容Contents of the invention
本发明实施例提供了一种LED灯驱动电源测试方法，能够在LED灯出厂前测试出LED灯驱动电源在开路状态下是否会造成驱动电源的损坏，防止不合格的LED灯流入市场，减少售后服务成本。The embodiment of the present invention provides a test method for LED lamp driving power, which can test whether the LED lamp driving power will cause damage to the driving power in an open circuit state before the LED lamp leaves the factory, prevent unqualified LED lamps from entering the market, and reduce after-sales service cost.
本发明提供的LED灯驱动电源测试方法，包括：The LED lamp driving power supply test method provided by the present invention includes:
闭合所述驱动电源与所述驱动电源的负载之间的连接，启动所述驱动电源，待所述驱动电源工作稳定后，断开所述驱动电源与所述负载之间的连接；closing the connection between the driving power supply and the load of the driving power supply, starting the driving power supply, and disconnecting the connection between the driving power supply and the load after the driving power supply works stably;
经过第一测试时间后，检测所述驱动电源性能是否正常；After the first test time, detect whether the performance of the driving power supply is normal;
闭合所述驱动电源与所述负载之间的连接，启动所述驱动电源，待所述驱动电源工作稳定后，以第一设定测试速率对所述负载进行第一设定次数的瞬态断开操作，其中，所述瞬态断开操作为断开所述驱动电源与所述负载之间的连接后经过第一设定断开时间后闭合所述驱动电源与所述负载之间的连接；closing the connection between the drive power supply and the load, starting the drive power supply, and performing a first set number of transient interruptions to the load at a first set test rate after the drive power supply is stable. open operation, wherein the transient disconnection operation is to close the connection between the drive power supply and the load after a first set disconnection time has elapsed after disconnecting the connection between the drive power supply and the load ;
检测所述驱动电源性能是否正常；Detecting whether the performance of the driving power supply is normal;
关闭所述驱动电源，断开所述驱动电源与所述负载之间的连接，启动所述驱动电源；Turn off the driving power supply, disconnect the connection between the driving power supply and the load, and start the driving power supply;
经过第二测试时间后，检测所述驱动电源性能是否正常；After the second test time, detect whether the performance of the driving power supply is normal;
关闭所述驱动电源，断开所述驱动电源与所述负载之间的连接，对所述驱动电源进行第二设定次数的瞬态启动操作，其中，所述瞬态启动操作为启动所述驱动电源后经过第一设定工作时间后关闭所述驱动电源；Turn off the driving power supply, disconnect the connection between the driving power supply and the load, and perform a second set number of transient startup operations on the driving power supply, wherein the transient startup operation is to start the Turn off the driving power after the first set working time after driving the power;
检测所述驱动电源性能是否正常；Detecting whether the performance of the driving power supply is normal;
若以上检测所述驱动电源性能是否正常的步骤都检测出所述驱动电源性能正常，则测试通过。If the above steps of detecting whether the performance of the driving power supply is normal all detect that the performance of the driving power supply is normal, then the test is passed.
可选地，所述的检测所述驱动电源性能是否正常可以包括：Optionally, the detection of whether the performance of the driving power supply is normal may include:
闭合所述驱动电源与所述驱动电源的负载之间的连接，其中所述驱动电源的负载为LED；closing the connection between the driving power supply and the load of the driving power supply, wherein the load of the driving power supply is an LED;
启动所述驱动电源；start the driving power supply;
检测LED是否正常发光；Detect whether the LED is emitting light normally;
若所述LED正常发光则所述驱动电源性能正常。If the LED emits light normally, the performance of the driving power supply is normal.
可选地，所述的检测所述驱动电源性能是否正常可以包括：Optionally, the detection of whether the performance of the driving power supply is normal may include:
启动所述驱动电源；start the driving power supply;
检测所述驱动电源的输出电压是否在额定输出电压范围；Detecting whether the output voltage of the drive power supply is within the rated output voltage range;
检测所述驱动电源的输出电流是否在额定输出电流范围；Detecting whether the output current of the drive power supply is within the rated output current range;
若所述驱动电源的所述输出电压和所述输出电流分别在额定输出电压范围和额定输出电流范围内，则所述驱动电源性能正常。If the output voltage and the output current of the driving power supply are respectively within the rated output voltage range and the rated output current range, then the performance of the driving power supply is normal.
可选地，所述的启动所述驱动电源包括：Optionally, the starting of the drive power supply includes:
将所述驱动电源的输入端连接至输入电源。Connect the input end of the driving power supply to the input power supply.
可选地，所述第一测试时间的范围为1～8个小时。Optionally, the first test time ranges from 1 to 8 hours.
可选地，所述第一设定测试速率为1次/秒。Optionally, the first set test rate is 1 time/second.
可选地，所述第一设定次数为20次。Optionally, the first set number of times is 20 times.
可选地，所述第二测试时间为的范围为1～8个小时。Optionally, the second test time ranges from 1 to 8 hours.
可选地，所述第二设定次数为20次。Optionally, the second set number of times is 20 times.
可选地，所述第一设定工作时间的范围为3～10秒。Optionally, the range of the first set working time is 3-10 seconds.
本发明模拟LED驱动电源的各种开路状态，对LED驱动电源进行开路测试，若LED驱动电源在各种测试条件下均未出到性能异常则说明LED驱动电源开路性能合格。本发明的测试结果可以作为产品性能的评判依据，帮助设计者在产品测试阶段找出LED驱动电源的开路保护性能是否存在缺陷，及时发现缺陷并进行有效改进。本发明可以防止不合格的LED灯流入市场，减少售后服务成本。The invention simulates various open-circuit states of the LED driving power supply, and conducts an open-circuit test on the LED driving power supply. If the LED driving power supply has no abnormal performance under various test conditions, it means that the open-circuit performance of the LED driving power supply is qualified. The test results of the present invention can be used as a basis for judging product performance, helping designers find out whether there is a defect in the open-circuit protection performance of the LED driving power supply during the product test stage, find out the defect in time, and make effective improvements. The invention can prevent unqualified LED lamps from flowing into the market and reduce after-sales service costs.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.
图1是本发明实施例提供的一种LED灯驱动电源测试方法的流程图。Fig. 1 is a flow chart of a test method for an LED lamp driving power supply provided by an embodiment of the present invention.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
请参考图1，图1是本发明实施例提供的一种LED灯驱动电源测试方法的流程图，包括：Please refer to FIG. 1. FIG. 1 is a flowchart of a method for testing LED lamp driving power provided by an embodiment of the present invention, including:
101、闭合驱动电源与驱动电源的负载之间的连接，启动驱动电源，待驱动电源工作稳定后，断开驱动电源与负载之间的连接。101. Close the connection between the driving power supply and the load of the driving power supply, start the driving power supply, and disconnect the connection between the driving power supply and the load after the driving power supply works stably.
步骤101模拟LED驱动电源在正常工作中，负载长期开路的情况，驱动电源的负载通常为LED。其中，闭合驱动电源与驱动电源的负载之间的连接具体为将驱动电源的正极输出端和负极输出端分别连接至负载的正极和负极。启动驱动电源具体为驱动电源的输入端接通输入电源。驱动电源工作稳定具体为驱动电源的输出电压和输出电流达到额定值。Step 101 simulates the situation that the LED driving power supply is in normal operation and the load is open circuit for a long time, and the load of the driving power supply is usually an LED. Wherein, closing the connection between the driving power supply and the load of the driving power supply is specifically connecting the positive output end and the negative output end of the driving power supply to the positive pole and the negative pole of the load respectively. Starting the drive power supply is specifically to turn on the input power supply at the input end of the drive power supply. The stable operation of the driving power supply is specifically that the output voltage and output current of the driving power supply reach the rated value.
102、经过第一测试时间后，检测驱动电源性能是否正常。102. After the first test period, check whether the performance of the driving power supply is normal.
可选地，第一测试时间的范围为1～8小时，优选为1小时。Optionally, the first test time ranges from 1 to 8 hours, preferably 1 hour.
其中，检测驱动电源性能是否正常的方法可以为：Among them, the method for detecting whether the performance of the driving power supply is normal can be:
闭合驱动电源与驱动电源的负载之间的连接，其中驱动电源的负载为LED；Close the connection between the driving power supply and the load of the driving power supply, wherein the load of the driving power supply is an LED;
启动驱动电源；Start the drive power supply;
检测LED是否正常发光；Detect whether the LED is emitting light normally;
若LED正常发光则驱动电源性能正常。If the LED glows normally, the performance of the drive power supply is normal.
其中，检测驱动电源性能是否正常的方法还可以为：Wherein, the method for detecting whether the performance of the driving power supply is normal may also be:
启动驱动电源；Start the drive power supply;
检测驱动电源的输出电压是否在额定输出电压范围；Detect whether the output voltage of the driving power supply is within the rated output voltage range;
检测驱动电源的输出电流是否在额定输出电流范围；Detect whether the output current of the drive power supply is within the rated output current range;
若驱动电源的输出电压和输出电流分别在额定输出电压范围和额定输出电流范围内，则驱动电源性能正常。If the output voltage and output current of the drive power supply are within the rated output voltage range and rated output current range respectively, then the performance of the drive power supply is normal.
103、闭合驱动电源与负载之间的连接，启动驱动电源，待驱动电源工作稳定后，以第一设定测试速率对负载进行第一设定次数的瞬态断开操作，其中，瞬态断开操作为断开驱动电源与负载之间的连接后经过第一设定断开时间后闭合驱动电源与负载之间的连接。103. Close the connection between the drive power supply and the load, start the drive power supply, and after the drive power supply works stably, perform the first set number of transient disconnection operations on the load at the first set test rate, wherein the transient disconnection The opening operation is to close the connection between the driving power supply and the load after the first set disconnection time has elapsed after the connection between the driving power supply and the load is disconnected.
步骤103模拟LED驱动模块在正常工作中，负载瞬间开路的情况。Step 103 simulates the situation that the LED driver module is in normal operation and the load is open-circuited momentarily.
可选地，第一设定测试速率可以为1次/秒，第一设定次数可以为20次，第一设定断开时间为秒级的时间。Optionally, the first set test rate may be 1 time per second, the first set number of times may be 20 times, and the first set disconnection time may be in seconds.
104、检测驱动电源性能是否正常。104. Check whether the performance of the driving power supply is normal.
其中，检测驱动电源性能是否正常的具体步骤参考步骤102，这里不再赘述。Wherein, for the specific steps of detecting whether the performance of the driving power is normal, refer to step 102, which will not be repeated here.
105、关闭驱动电源，断开驱动电源与负载之间的连接，启动驱动电源。105. Turn off the driving power, disconnect the connection between the driving power and the load, and start the driving power.
步骤105模拟LED驱动电源处于停用状态下，负载长期开路的情况。其中，关闭驱动电源具体为断开驱动电源的输入端与输入电源之间的连接。Step 105 simulates the situation that the LED drive power supply is in a disabled state and the load is open for a long time. Wherein, turning off the driving power is specifically disconnecting the connection between the input end of the driving power and the input power.
106、经过第二测试时间后，检测驱动电源性能是否正常。106. After the second test time elapses, check whether the performance of the driving power supply is normal.
可选地，第二测试时间的范围可以为1～8小时，优选为1小时，检测驱动电源性能是否正常的具体步骤参考步骤102，这里不再赘述。Optionally, the second test time may range from 1 to 8 hours, preferably 1 hour. For specific steps of checking whether the performance of the driving power supply is normal, refer to step 102, which will not be repeated here.
107、关闭驱动电源，断开驱动电源与负载之间的连接，对驱动电源进行第二设定次数的瞬态启动操作，其中，瞬态启动操作为启动驱动电源后经过第一设定工作时间后关闭驱动电源。107. Turn off the driving power supply, disconnect the connection between the driving power supply and the load, and perform a second set number of transient startup operations on the driving power supply, wherein the transient startup operation is the first set working time after starting the driving power supply Then turn off the drive power.
步骤107模拟LED驱动电源处于停用状态、开路状态下启动驱动电源的情况。Step 107 simulates the situation that the LED driving power is in the disabled state and the driving power is started in the open state.
可选地，第二设定次数可以为20次，第一设定工作时间的范围可以为3～10秒，优选为5秒。Optionally, the second set number of times may be 20 times, and the range of the first set working time may be 3-10 seconds, preferably 5 seconds.
108、检测驱动电源性能是否正常。108. Check whether the performance of the drive power supply is normal.
109、若以上检测驱动电源性能是否正常的步骤都检测出驱动电源性能正常，则测试通过。109. If the above steps of detecting whether the performance of the driving power supply are normal, it is found that the performance of the driving power supply is normal, then the test is passed.
本实施例模拟LED驱动电源的各种开路状态，对LED驱动电源进行开路测试，若LED驱动电源在各种测试条件下均未出到性能异常则说明LED驱动电源开路性能合格。本发明的测试结果可以作为产品性能的评判依据，帮助设计者在产品测试阶段找出LED驱动电源的开路保护性能是否存在缺陷，及时发现缺陷并进行有效改进。本实施例可以防止不合格的LED灯流入市场，减少售后服务成本。This embodiment simulates various open-circuit states of the LED driving power supply, and conducts an open-circuit test on the LED driving power supply. If the LED driving power supply does not experience abnormal performance under various test conditions, it means that the open-circuit performance of the LED driving power supply is qualified. The test results of the present invention can be used as a basis for judging product performance, helping designers find out whether there is a defect in the open-circuit protection performance of the LED driving power supply during the product test stage, find out the defect in time, and make effective improvements. This embodiment can prevent unqualified LED lamps from flowing into the market and reduce after-sales service costs.
以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明之权利范围，因此依本发明权利要求所作的等同变化，仍属本发明所涵盖的范围。The above disclosures are only preferred embodiments of the present invention, and certainly cannot limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope of the present invention.
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| CN106093806A (en) * | 2016-06-07 | 2016-11-09 | 中国南方航空工业(集团)有限公司 | Helicopter AC power-supply system detection device |
| CN109870626A (en) * | 2019-03-22 | 2019-06-11 | 北京集创北方科技股份有限公司 | Open circuit detection method and LED display |
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| CN201615931U (en) * | 2009-12-22 | 2010-10-27 | 重庆四联启蓝半导体照明有限公司 | Led driver testing system |
| CN102455417A (en) * | 2010-10-14 | 2012-05-16 | 泰金宝光电(苏州)有限公司 | Test system of light-emitting diode lamp |
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| US20120140059A1 (en) * | 2010-12-03 | 2012-06-07 | Lextar Electronics Corp. | Inspection machine, inspecting method and inspecting system |
| CN102540103A (en) * | 2010-12-09 | 2012-07-04 | 西安中科麦特电子技术设备有限公司 | Novel light emitting diode (LED) switching power supply test system |
| CN202721885U (en) * | 2012-06-05 | 2013-02-06 | 新宝电机(东莞)有限公司 | LED drive power aging test load |
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2013
- 2013-04-25 CN CN201310146447.5A patent/CN104122506B/en not_active Expired - Fee Related
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| US20080036616A1 (en) * | 2006-07-21 | 2008-02-14 | Mcdermott Vernon C Sr | Lamp or led failure monitoring system |
| CN201615931U (en) * | 2009-12-22 | 2010-10-27 | 重庆四联启蓝半导体照明有限公司 | Led driver testing system |
| CN102455417A (en) * | 2010-10-14 | 2012-05-16 | 泰金宝光电(苏州)有限公司 | Test system of light-emitting diode lamp |
| CN102486532A (en) * | 2010-12-01 | 2012-06-06 | 西安大昱光电科技有限公司 | LED (light-emitting diode) power source analysis and test system |
| US20120140059A1 (en) * | 2010-12-03 | 2012-06-07 | Lextar Electronics Corp. | Inspection machine, inspecting method and inspecting system |
| CN102540103A (en) * | 2010-12-09 | 2012-07-04 | 西安中科麦特电子技术设备有限公司 | Novel light emitting diode (LED) switching power supply test system |
| CN202721885U (en) * | 2012-06-05 | 2013-02-06 | 新宝电机(东莞)有限公司 | LED drive power aging test load |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093806A (en) * | 2016-06-07 | 2016-11-09 | 中国南方航空工业(集团)有限公司 | Helicopter AC power-supply system detection device |
| CN109870626A (en) * | 2019-03-22 | 2019-06-11 | 北京集创北方科技股份有限公司 | Open circuit detection method and LED display |
| US11417252B2 (en) | 2019-03-22 | 2022-08-16 | Chipone Technology (Beijing) Co., Ltd. | Open circuit detection method and LED display device |
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| Publication number | Publication date |
|---|---|
| CN104122506B (en) | 2016-12-28 |
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