KR20180069373A - Smart led lighting apparatus using constant current type smps and control method thereof - Google Patents

Smart led lighting apparatus using constant current type smps and control method thereof Download PDF

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KR20180069373A
KR20180069373A KR1020160171494A KR20160171494A KR20180069373A KR 20180069373 A KR20180069373 A KR 20180069373A KR 1020160171494 A KR1020160171494 A KR 1020160171494A KR 20160171494 A KR20160171494 A KR 20160171494A KR 20180069373 A KR20180069373 A KR 20180069373A
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led lighting
smps
voltage
power
output
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KR1020160171494A
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KR101960677B1 (en
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신한석
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씨에스텍 주식회사
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    • H05B33/0818
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30Driver circuits
    • H05B45/345Current stabilisation; Maintaining constant current
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00Conversion of dc power input into dc power output
    • H02M3/02Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H05B33/0845
    • H05B33/0884
    • H05B37/0254
    • H05B37/0272
    • H05B37/03
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10Controlling the intensity of the light
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30Driver circuits
    • H05B45/37Converter circuits
    • H05B45/3725Switched mode power supply [SMPS]
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/50Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10Controlling the light source
    • H05B47/175Controlling the light source by remote control
    • H05B47/18Controlling the light source by remote control via data-bus transmission
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10Controlling the light source
    • H05B47/175Controlling the light source by remote control
    • H05B47/19Controlling the light source by remote control via wireless transmission
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20Responsive to malfunctions or to light source life; for protection
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
    • Y02B20/346
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The present invention relates to an LED lighting device which comprises: an SMPS (2) for receiving AC power, and converting the same into DC power for turning on LED lamps (30) to output the same; and a plurality of LED lamps (30) turned on by an output power of the SMPS (2). The SMPS (2) includes: a voltage current sensing unit (14) for receiving a voltage of power to be output with a feedback signal to sense a change in an output voltage, and confirming an LED lamp (3) with a fault among the LED lamps (30); and a power control unit (16) for determining whether the LED lamp (30) is faulty through the change in the output voltage through the voltage current sensing unit (14), and transmitting a control signal to an MCU (4) to lower the power capacity of the SMPS (2) so as to prevent a specific LED lamp (30) from being overloaded to have a shortened lifespan. Accordingly, an LED lamp (30) with a fault among the LED lamps (30) connected to one SMPS (2) is automatically recognized, and the power capacity of the SMPS (2) is lowered to prevent the overload of the turned-on LED lamps (30), such that the energy efficiency can be improved while preventing the lifespan of the LED lamps (30) from being shortened due to the overload.

Description

정전류 방식의 SMPS를 이용한 스마트 LED 조명장치 및 이의 제어방법{SMART LED LIGHTING APPARATUS USING CONSTANT CURRENT TYPE SMPS AND CONTROL METHOD THEREOF}TECHNICAL FIELD [0001] The present invention relates to a smart LED lighting device using a constant current type SMPS, and a control method thereof. [0002]

본 발명은 LED 조명장치에 관한 것으로, 특히 LED 조명장치의 수명을 연장하면서 전력효율을 높일 수 있는 정전류 방식의 SMPS를 이용한 스마트 LED 조명장치 및 이의 제어방법에 관한 것이다.The present invention relates to an LED lighting device, and more particularly, to a smart LED lighting device using a constant current type SMPS capable of increasing power efficiency while extending the life of the LED lighting device and a control method thereof.

일반적으로 LED 조명 제어 장치는 교류 전원을 SMPS(Switching Mode Power Supply)를 통해서 원하는 직류전원으로 변환한 다음 디밍제어모듈을 통해서 LED 광원부를 제어할 수 있도록 구성한다. Generally, the LED lighting control device converts AC power into DC power through a Switching Mode Power Supply (SMPS), and controls the LED light source through a dimming control module.

또한 LED 조명 장치의 주요 특징은 종래의 백열등이나 형광등에 비해서 수명이 길다는 점과 전력 및 광 효율이 높다는 점이다. 그러나 LED 조명 장치는 구동부인 조명 제어 장치를 구비하여야 하며, 실제 LED 광원부의 수명이나 효율성보다 주변장치인 조명 제어 장치의 신뢰성, 수명 및 효율이 전체 조명장치에 더 큰 영향을 미칠 수 있어 이에 대한 대책이 필요하다.In addition, the main features of LED lighting devices are that they have a longer lifetime and higher power and light efficiency than conventional incandescent lamps and fluorescent lamps. However, the LED lighting device must include a lighting control device as a driving unit, and reliability, life and efficiency of the lighting control device, which is a peripheral device, may have a greater influence on the entire lighting device than the lifetime and efficiency of the actual LED light source portion. Is required.

SMPS는 대부분의 전자 통신 기기에 폭넓게 이용되고 있는 직류 안정화 전원으로서, 임의의 전원을 특정 부하 장비에서 사용 가능하도록 전원 특성을 전환하여 주는 장치를 말한다. SMPS is a DC stabilized power supply that is widely used in most electronic communication devices, and is a device that switches the power supply characteristics so that an arbitrary power supply can be used in a specific load device.

상기 SMPS는 반도체 소자의 스위칭 특성을 이용하여 전력의 흐름을 제어함으로써 고효율의 전원 공급이 가능하고, 또한 커패시터나 인덕터와 같은 에너지축전용 소자를 소형화함으로써 소형 및 경량화가 가능하다. 이와 같은 고효율, 소형 및 경량화라는 장점으로 인해 SMPS는 LED 조명 장치의 전원 공급 장치로서 널리 사용되고 있다.The SMPS can supply a high-efficiency power by controlling the flow of electric power using the switching characteristics of the semiconductor device, and can be made compact and lightweight by miniaturizing an element dedicated to an energy axis such as a capacitor and an inductor. Because of such advantages of high efficiency, small size and light weight, SMPS is widely used as a power supply device for LED lighting devices.

최근에는 하나의 SMPS에 다수의 LED 조명장치를 연결설치하여 제어함으로써 효율적으로 다수의 LED 조명장치를 제어하도록 사용하고 있다.In recent years, a plurality of LED lighting devices are connected to a single SMPS and controlled so as to efficiently control a plurality of LED lighting devices.

하지만, 하나의 SMPS에 연결된 다수의 LED 조명장치 중에서 일부가 고장이 나는 경우 점등된 나머지 LED 조명장치에 부하가 집중되어 결과적으로 LED 조명장치의 수명이 줄어들고 에너지 효율성도 떨어지는 문제가 있는 것이다.However, when a part of a plurality of LED lighting devices connected to one SMPS fails, the load is concentrated on the remaining LED lighting devices that are turned on, resulting in a reduction in the life of the LED lighting device and energy efficiency.

등록특허 제10-1278540호, "정전류와 정전압 SMPS를 지원하는 LED 램프용 하이브리드 디밍 제어 시스템 및 그 방법"Registered Patent No. 10-1278540, "Hybrid dimming control system and method for LED lamp supporting constant current and constant voltage SMPS"

따라서 본 발명의 목적은 하나의 SMPS에 연결된 다수의 LED 조명장치 중에서 고장난 LED 조명장치를 자동으로 인식하여 점등된 LED 조명장치에 가해지는 부하를 줄이도록 하는 정전류 방식의 SMPS를 이용한 스마트 LED 조명장치 및 이의 제어방법를 제공하는데에 있다.Accordingly, an object of the present invention is to provide a smart LED lighting device using a constant current type SMPS that automatically recognizes a failed LED lighting device among a plurality of LED lighting devices connected to one SMPS and reduces a load applied to the LED lighting device And a control method thereof.

상기 과제를 해결하기 위한 본 발명은 LED 조명장치에 있어서, 교류전원을 입력받아 LED 조명등(30)의 점등을 위한 직류전원으로 변환하여 출력하는 SMPS(2)와, 상기 SMPS(2)의 출력 전원에 의해 점등되는 다수의 LED 조명등(30)으로 구성하되, 상기 SMPS(2)는 출력되는 전원의 전압을 피드백신호로 입력받아 출력 전압의 변화를 감지하여 다수의 LED 조명등(30) 중에서 고장이 발생한 LED 조명등(30)을 확인하는 전압전류감지부(14)와, 상기 전압전류감지부(14)를 통해 출력전압의 변화를 통해 LED 조명등(30)의 고장을 유무를 확인한 후 MCU(4)에 제어신호를 전송하여 SMPS(2)의 전력용량을 낮추도록 하여 특정 LED 조명등(30)에 과부하가 걸려 수명이 단축되는 것을 방지하는 전력제어부(16)로 구성함을 특징으로 한다.According to an aspect of the present invention, there is provided an LED lighting apparatus including an SMPS for receiving an AC power and converting the AC power into a DC power for lighting the LED lighting lamp, The SMPS 2 receives a voltage of an output power source as a feedback signal and senses a change in an output voltage of the SMPS 2, A voltage current detection unit 14 for checking the LED lighting lamp 30 and a controller for checking whether the LED lighting lamp 30 has failed through a change in output voltage through the voltage current detection unit 14, And a power controller 16 for reducing the power capacity of the SMPS 2 by transmitting a control signal to prevent a specific LED illuminating lamp 30 from being overloaded and shortening its service life.

또한, 본 발명은 LED 조명장치의 제어방법에 있어서, 입력되는 교류전원을 LED 조명등(30)의 구동을 위한 직류전원으로 변환하여 LED 조명등(30)의 전원을 출력하는 단계와, 출력되는 LED 조명등(30) 전원의 전류를 피드백신호로 입력받아 출력전원의 전류값을 보상하여 정전류가 출력되도록 하는 단계와, 출력되는 LED 조명등(30) 전원의 전압을 피드백신호로 입력받아 출력 전압의 변호를 감지하여 고장난 LED 조명등(30)을 확인하는 단계와, 출력전압의 전압의 크기 변화를 통해 LED 조명등(30)의 고장을 확인한 후 점등된 LED 조명등(30)에 과부하가 걸리지 않도록 SMPS(2)의 전력용량을 낮추도록 제어하는 단계로 이루어짐을 특징으로 한다.According to another aspect of the present invention, there is provided a method of controlling an LED lighting apparatus, the method comprising: converting an input AC power to a DC power for driving the LED lighting lamp (30) and outputting power to the LED lighting lamp (30) Receiving the current of the power source 30 as a feedback signal and compensating the current value of the output power source so as to output a constant current, receiving the voltage of the power source of the LED lighting lamp 30 as a feedback signal, The method includes the steps of: checking the failed LED lighting lamp 30; confirming the failure of the LED lighting lamp 30 through a change in the magnitude of the output voltage; and controlling the power of the SMPS 2 so as not to overload the LED lighting lamp 30 And controlling the capacity to be lowered.

본 발명은 하나의 SMPS에 연결된 다수의 LED 조명등 중에서 고장난 LED 조명등을 자동으로 인식하고 점등된 LED 조명등의 과부하를 방지하기 위해 SMPS의 전력용량을 낮춤으로써 과부하에 의한 LED 조명등의 수명 단축을 방지하면서 에너지 효율을 높일 수 있는 것이다.The present invention automatically recognizes a faulty LED lighting lamp among a plurality of LED lighting lamps connected to one SMPS and lowers the power capacity of the SMPS in order to prevent the overload of the LED lighting lamps, It is possible to increase the efficiency.

도 1은 본 발명의 실시 예에 따른 정전류 방식의 SMPS를 이용한 스마트 LED 조명장치의 구성을 설명하는 블록도,
도 2는 본 발명의 실시 예에 따른 SMPS의 구성을 설명하는 상세도,
도 3은 본 발명의 다른 실시 예에 따른 정전류 방식의 SMPS를 이용한 스마트 LED 조명장치의 구성을 설명하는 블록도,
도 4는 본 발명의 실시 예에 따른 정전류 방식의 SMPS를 이용한 스마트 LED 조명장치의 제어방법을 설명하는 흐름도이다.
1 is a block diagram illustrating a configuration of a smart LED lighting device using a constant current SMPS according to an embodiment of the present invention;
2 is a detailed view illustrating the configuration of the SMPS according to the embodiment of the present invention,
3 is a block diagram illustrating a configuration of a smart LED lighting device using a constant current SMPS according to another embodiment of the present invention.
4 is a flowchart illustrating a method of controlling a smart LED lighting device using a constant current SMPS according to an embodiment of the present invention.

이하 첨부한 도면을 참조하여 본 발명의 바람직한 실시 예를 상세히 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 실시 예에 따른 LED 조명장치의 구성을 보여주는 블록도이고, 도 2는 본 발명의 SMPS의 구성을 보여주는 블록도이다.FIG. 1 is a block diagram showing the configuration of an LED lighting apparatus according to an embodiment of the present invention, and FIG. 2 is a block diagram showing the configuration of an SMPS of the present invention.

본 발명의 LED 조명장치는 교류전원을 입력받아 LED 조명등(30)의 점등을 위한 직류전원으로 변환하여 출력하는 SMPS(2)와, 상기 SMPS(2)의 출력 전원에 의해 점등되는 다수의 LED 조명등(30)으로 구성하되, 상기 SMPS(2)는 입력되는 고압의 교류전압을 LED 조명등(30)의 점등을 위한 출력전압으로 낮추는 트랜스포머(6)와, 낮춰진 교류전압을 직류전압으로 정류하는 정류부(8)와, 정류된 출력 직류전압의 전류를 제어하여 LED 조명등(30)의 출력전원으로 정전류가 출력되도록 제어하는 전원출력부(10)와, 출력되는 전원의 전류를 피드백신호로 입력받아 출력전원의 전류값을 보상하여 오차를 줄임으로써 정전류가 출력될 수 있도록 제어하는 피드백제어부(12)와, 출력되는 전원의 전압을 피드백신호로 입력받아 출력 전압과 전류의 변화를 감지하여 다수의 LED 조명등(30) 중에서 고장이 발생한 LED 조명등(30)을 확인하는 전압전류감지부(14)와, 상기 전압전류감지부(14)를 통해 출력전압의 변화를 통해 LED 조명등(30)의 고장을 유무를 확인한 후 MCU(4)에 제어신호를 전송하여 SMPS(2)의 전력용량을 낮추도록 하여 특정 LED 조명등(30)에 과부하가 걸려 수명이 단축되는 것을 방지하는 전력제어부(16)로 구성한다.The LED lighting apparatus of the present invention includes an SMPS 2 for receiving an AC power and converting it to DC power for lighting the LED lighting lamp 30 and outputting the DC power, The SMPS 2 includes a transformer 6 for lowering an input high voltage AC voltage to an output voltage for lighting the LED lighting lamp 30, a rectifier 6 for rectifying the lowered AC voltage to a DC voltage, (10) for controlling the current of rectified output DC voltage to control the constant current to be output to the output power source of the LED lighting lamp (30), and a control unit A feedback control unit (12) for controlling the constant current to be output by reducing the error by compensating the current value of the power source; a feedback control unit (12) for receiving the voltage of the output power source as a feedback signal, (30) A voltage current detection unit 14 for detecting an LED lighting lamp 30 which has a failure in the LED lighting lamp 30 and a voltage / current detection unit 14 for detecting a failure of the LED lighting lamp 30 through a change in output voltage, And a power control unit 16 for reducing the power capacity of the SMPS 2 by transmitting a control signal to the LED lighting lamp 4 to prevent the specific LED lighting lamp 30 from being overloaded and shortening its service life.

본 발명에서는 다수의 LED 조명등(30)을 제어하는 SMPS(2)의 출력 전원에서 특정 LED 조명등(30)의 고장시에 변화하는 전압과 전류를 전압전류감지부(14)에서 감지한 후 점등된 LED 조명등(30)에 가해지는 부하를 줄이기 위해 전력제어부(16)의 제어신호에 의해 SMPS(2)의 출력 전력용량을 줄이도록 구성하는 것이다.In the present invention, the voltage and current sensing unit 14 senses a voltage and a current which change at the time of failure of a specific LED illumination lamp 30 from the output power of the SMPS 2 controlling a plurality of the LED illumination lights 30, The output power capacity of the SMPS 2 is reduced by the control signal of the power control unit 16 in order to reduce the load applied to the LED illumination lamp 30.

상기 전압전류감지부(14)는 전원출력부(10)를 통해 출력되는 LED 조명등(30)의 출력전원으로부터 전압,전류값을 피드백신호로 입력받아 다수의 LED 조명등(30) 중에서 특정 LED 조명등(30)이 고장나 소등된 경우 출력 전압, 전류의 변화를 감지하여 LED 조명등(30)의 고장을 판별한다.The voltage and current sensing unit 14 receives a voltage and a current value from the output power of the LED lighting lamp 30 output through the power output unit 10 as a feedback signal and receives a voltage and current from the LED lighting lamp 30 30 detects a failure or turns off, detects the change of the output voltage and current, and discriminates the failure of the LED lighting lamp (30).

상기 전력제어부(16)는 전압전류감지부(14)에 의한 출력 전압, 전류의 변화 감지신호에 의해 MCU(4)에 제어신호를 보내어 SMPS(2)의 전력용량을 줄이도록 제어한다.The power control unit 16 sends a control signal to the MCU 4 to control the power capacity of the SMPS 2 to be reduced according to the output voltage and current change detection signals from the voltage and current sensing unit 14.

예를 들어, 도 1에 도시된 바와 같이 SMPS(2)에 4개의 LED 조명등(30)이 병렬로 연결된 경우 전력용량이 200W인 SMPS(2)의 경우 소비전력이 50W인 LED 조명등(30) 4개를 점등시키게 된다.For example, as shown in FIG. 1, when the four LED lighting lamps 30 are connected in parallel to the SMPS 2, the LED lighting lamps 30 with the power consumption of 50 W in the case of the SMPS 2 having the power capacity of 200 W The dog will light up.

4개의 조명등이 각각 50W의 소비전력을 소모하여 점등된 상태에서 하나의 LED 조명등(30)이 고장난 경우 200W의 SMPS(2)에 의해 3개의 LED 조명등(30)에 각각 1/3의 전력이 공급됨에 따라 소비전력 50W의 용량을 넘어서는 과부하가 발생하게 된다.When one LED lighting lamp 30 fails in a state in which four lighting lamps consume 50 W of power consumption respectively and 1/3 power is supplied to three LED lighting lamps 30 by a 200 W SMPS 2 Overloads exceeding the capacity of 50 W of power consumption will occur.

이런 경우 LED 조명등(30)의 과부하에 의해 계속적인 사용시 LED의 사용수명이 줄어들게 되는 것이다. In this case, due to the overload of the LED lighting lamp 30, the service life of the LED is reduced in continuous use.

본 발명에서는 이러한 LED 사용수명이 줄어드는 것을 방지하기 위해 LED 조명등(30)에 과부하가 걸리지 않도록 SMPS(2)의 전력제어부(16)에 의해 SMPS(2)의 사용전력을 낮추도록 제어함으로써 각각의 LED 조명등(30)이 소비전력에 맞게 사용될 수 있도록 한다.In order to prevent the lifetime of the LED from being reduced, the power control unit 16 of the SMPS 2 controls the power consumption of the SMPS 2 to be lowered so that the LED illumination lamp 30 is not overloaded, So that the illumination lamp 30 can be used in accordance with the power consumption.

상기의 예에서는 200W인 SMPS(2)의 전력용량을 150W(즉 전류를 정격에서 3/4으로 낮춤)로 낮춤으로써 3개의 LED 조명등(30)에 사용되는 전력이 50W가 되게 하여 부하가 발생하지 않도록 하는 것이며, 그에 따라 LED의 사용수명도 늘어나게 된다.In the above example, by reducing the power capacity of the SMPS 2 of 200 W to 150 W (i.e., reducing the current from the rated power to 3/4), the power used by the three LED lighting lamps 30 becomes 50 W, So that the service life of the LED is also increased.

도 3은 본 발명의 다른 실시 예에 따른 정전류 방식의 SMPS(2)를 이용한 스마트 LED 조명장치의 구성을 설명하는 블록도이다.3 is a block diagram illustrating a configuration of a smart LED lighting device using a constant current type SMPS 2 according to another embodiment of the present invention.

이를 참조하면, LED 조명등(30)의 각각에 점소등을 감지할 수 있는 센싱부(32)를 설치하여 LED 조명등(30)의 고장시 전류의 변화를 감지한 후 전력제어부(16)에서 SMPS(2)의 전력용량을 낮추도록 제어함으로써 점등된 LED 조명등(30)의 부하를 방지하게 되는 것이다.A sensing unit 32 capable of detecting the lighting of the LED lighting lamp 30 is installed in each of the LED lighting lamps 30 to detect a change in current when the LED lighting lamp 30 fails, 2) is lowered, the load of the LED illumination lamp 30 which is lighted is prevented.

본 발명에서는 다수의 LED 조명등(30)을 제어하되, 각 LED 조명등(30)의 점소등과 디밍을 개별로 제어하여 LED 조명등(30)이 설치된 위치에 따라 점소등 및 디밍제어가 되게 한다. In the present invention, a plurality of LED lighting lamps 30 are controlled, and the lighting and dimming of the LED lighting lamps 30 are individually controlled so as to be turned on and dimmed according to the positions where the LED lighting lamps 30 are installed.

즉, 다수의 LED 조명등(30)을 모두 점등 또는 소등, 일괄적인 밝기로 점등되는 것이 아니라 특정 위치의 LED 조명등(30)은 점등 또는 소등시키고, 점등된 LED 조명등(30)의 밝기도 각기 다르도록 설정하며 색온도로 개별로 설정할 수 있다.That is, not all of the plurality of LED illumination lamps 30 are turned on or off, but the LED illumination lamps 30 at specific positions are turned on or off so that the brightness of the LED illumination lights 30 are different from each other It can be set individually by color temperature.

다시 도 2를 참조하면, 본 발명에서는 DMX(Digital Multiplex) 512 유선통신에 의해 디지털 방식으로 LED 조명등(30)을 제어하는 유선통신부(18)와, 블루투스, 적외선 통신에 의한 제어신호를 수신하여 LED 조명등(30)의 점소등, 디밍을 제어하도록 하는 무선신호송수신부(20)와, 유, 무선통신에 의해 LED 조명등(30)의 디밍제어를 하기 위해 제어신호를 생성하는 디밍설정부(22)와, 상기 디밍설정부(22)에 의한 제어신호에 의해 LED 조명등(30)으로 출력되는 전원의 전압 크기를 설정하여 LED 조명등(30)의 디밍을 제어하는 전압제어부(24)를 포함하여 구성할 수 있다.Referring again to FIG. 2, the present invention includes a wired communication unit 18 for controlling the LED lighting lamp 30 in a digital manner by DMX (Digital Multiplex) 512 wired communication, a control unit for receiving control signals by Bluetooth and infrared communication, A dimming setting unit 22 for generating a control signal for controlling the dimming of the LED lighting lamp 30 by wire or wireless communication, a wireless signal transmitting and receiving unit 20 for controlling the lighting and dimming of the lighting lamp 30, And a voltage control unit 24 for controlling the dimming of the LED lighting lamp 30 by setting the voltage level of the power supplied to the LED lighting lamp 30 by a control signal from the dimming setting unit 22 .

이하에서는 도 4를 참조하여 본 발명이 정전류 방식의 SMPS(2)를 이용한 스마트 LED 조명장치의 제어방법을 설명한다.Hereinafter, a method of controlling the smart LED lighting device using the constant current SMPS 2 will be described with reference to FIG.

입력되는 교류전원을 SMPS(2)의 트랜스포머(6)에 의해 LED 조명등(30)의 구동을 위한 직류전원으로 변환하여 LED 조명등(30)의 전원으로 출력하게 된다.The transformer 6 of the SMPS 2 converts the input AC power into a DC power for driving the LED lighting lamp 30 and outputs it to the power source of the LED lighting lamp 30.

이때, 출력되는 전원의 전류는 LED 조명등(30)을 구동하기 위해 전류를 낮춘 후 정전류로 정류하여 출력하게 된다.At this time, the current of the output power source is rectified to a constant current after the current is lowered to drive the LED illumination lamp 30, and then the output is outputted.

다음으로, 출력되는 전원이 정전류로 출력되도록 하기 위해 출력되는 LED 조명등(30) 전원의 전류를 피드백신호로 입력받아 출력전원의 전류값을 보상하여 항상 일정한 전류가 출력되도록 제어한다.Next, in order to output the output power to the constant current, the LED lighting lamp 30 receives the current of the power source as the feedback signal and compensates the current value of the output power source so that the constant current is always outputted.

본 발명에서는 정전류 방식의 SMPS(2)를 구성하는 것임에 따라 LED 조명등(30)의 전원 출력시 항상 일정하게 전류가 흐르도록 제어하는 것이다.According to the present invention, since the constant current type SMPS 2 is constituted, the LED lighting lamp 30 is controlled so that current always flows constantly when the power is outputted.

출력되는 전원이 정전류로 출력되도록 함과 함께 다수의 LED 조명등(30) 중에서 고장난 LED 조명등(30)을 감지하기 위해 출력되는 LED 조명등(30) 전원의 전압, 전류값을 피드백신호로 입력받아 출력 전압,전류의 변화를 감지하게 된다.And outputs the voltage and current value of the power source of the LED lighting lamp 30, which is outputted for detecting the failed LED lighting lamp 30 among the plurality of LED lighting lamps 30, as the feedback signal, , And senses a change in current.

이때, SMPS(2)에서 분기되기 전의 전원에서는 전압과 전류값을 피드백신호로 입력받아 전압, 전류의 변화를 감지하며, 다수의 LED 조명등(30)으로 분기된 후에는 별도의 센싱부(32)에 의해 전류값의 변화를 감지하여 SMPS로 전송하게 된다.At this time, the voltage and current values of the power supply before the branching in the SMPS 2 are received as feedback signals to sense the change of the voltage and the current. After branching to the plurality of LED illumination lamps 30, And detects the change of the current value and transmits it to the SMPS.

LED 조명등(30)의 병렬 연결시에 특정 LED 조명등(30)이 고장나게 되면 출력 전원의 전압, 전류가 변하게 되며, 출력되는 전원의 전압, 전류값을 피드백신호로 실시간으로 입력받아 전압, 전류의 변화를 감지하여 LED 조명등(30)의 고장을 확인할 수 있는 것이다.When the LED lighting lamp 30 fails to operate in parallel with the LED lighting lamp 30, the voltage and current of the output power supply are changed, and the voltage and current values of the output power are input in real time as feedback signals. It is possible to confirm the failure of the LED illumination lamp 30 by detecting the change.

일부 LED 조명등(30)의 고장시 출력 전원의 전압 크기 변화를 확인한 후에는 점등된 LED 조명등(30)에 과부하가 걸리는 것을 방지하기 위해 SMPS(2)의 출력 전력을 설정치보다 낮추도록 제어하여 점등된 LED 조명등(30)이 소비전력에 맞게 점등되록 하여 사용수명을 늘릴 수 있게 된다.The output power of the SMPS 2 is controlled so as to be lower than the set value in order to prevent the LED lighting lamp 30 from being overloaded after confirming a change in the voltage magnitude of the output power supply when the LED lighting lamp 30 fails, The LED lighting lamp 30 is turned on in accordance with the power consumption, so that the service life can be increased.

상술한 본 발명의 설명에서는 구체적인 실시 예에 관해 설명하였으나, 여러가지 변형이 본 발명의 범위에서 벗어나지 않고 실시할 수 있다. 따라서 본 발명의 범위는 설명된 실시 예에 의하여 정할 것이 아니고 특허청구범위 및 그 특허청구범위의 균등한 것에 의해 정해져야 한다.While the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Therefore, the scope of the present invention should not be limited by the described embodiments but should be determined by the scope of the appended claims and equivalents thereof.

(2)-- SMPS (4)-- MCU
(6)-- 트랜스포머 (8)-- 정류부
(10)-- 전원출력부 (12)-- 피드백제어부
(14)-- 전압전류감지부 (16)-- 전력제어부
(18)-- 유선통신부 (20)-- 무선신호송수신부
(22)-- 디밍설정부 (24)-- 전압제어부
(30)-- LED 조명등 (32)-- 센싱부
(2) - SMPS (4) - MCU
(6) - Transformer (8) - Rectifier
(10) - Power supply output section (12) - Feedback control section
(14) -Voltage current detection unit (16) -Power control unit
(18) - wired communication unit (20) - wireless signal transmission and reception unit
(22) -dimming setting section (24) -voltage control section
(30) - LED lighting lamp (32) - sensing part

Claims (9)

LED 조명장치에 있어서,
교류전원을 입력받아 LED 조명등(30)의 점등을 위한 직류전원으로 변환하여 출력하는 SMPS(2)와, 상기 SMPS(2)의 출력 전원에 의해 점등되는 다수의 LED 조명등(30)으로 구성하되, 상기 SMPS(2)는 출력되는 전원의 전압, 전류값을 피드백신호로 입력받아 출력 전압의 변화를 감지하여 다수의 LED 조명등(30) 중에서 고장이 발생한 LED 조명등(30)을 확인하는 전압전류감지부(14)와, 상기 전압전류감지부(14)를 통해 출력전압, 전류의 변화를 통해 LED 조명등(30)의 고장을 유무를 확인한 후 MCU(4)에 제어신호를 전송하여 SMPS(2)의 출력전력을 설정치보다 낮추도록 하여 특정 LED 조명등(30)에 과부하가 걸려 수명이 단축되는 것을 방지하는 전력제어부(16)로 구성함을 특징으로 하는 정전류 방식의 SMPS를 이용한 스마트 LED 조명장치.
In an LED lighting device,
An SMPS 2 for receiving AC power and converting it into a DC power for lighting the LED lighting lamp 30 and a plurality of LED lighting lamps 30 which are turned on by the output power of the SMPS 2, The SMPS 2 receives a voltage and a current value of an output power source as a feedback signal and senses a change in an output voltage to detect a failure of the LED lighting lamp 30, The LED lighting lamp 30 is connected to the SMPS 2 via the voltage and current sensing unit 14 and the control unit 14 of the SMPS 2 And a power controller (16) for preventing the output power from being lowered below the set value, thereby preventing the specific LED light (30) from being overloaded and shortening its service life.
제1항에 있어서,
상기 SMPS(2)는 입력되는 고압의 교류전압을 LED 조명등(30)의 점등을 위한 출력전압으로 낮추는 트랜스포머(6)를 포함하여 구성함을 특징으로 하는 정전류 방식의 SMPS를 이용한 스마트 LED 조명장치.
The method according to claim 1,
Wherein the SMPS (2) comprises a transformer (6) for lowering the inputted high voltage AC voltage to an output voltage for lighting the LED lighting lamp (30).
제1항에 있어서,
상기 SMPS(2)는 낮춰진 교류전압을 직류전압으로 정류하는 정류부(8)와, 정류된 출력 직류전압의 전류를 제어하여 LED 조명등(30)의 출력전원으로 정전류가 출력되도록 제어하는 전원출력부(10)를 포함하여 구성함을 특징으로 하는 정전류 방식의 SMPS를 이용한 스마트 LED 조명장치.
The method according to claim 1,
The SMPS 2 includes a rectifying unit 8 for rectifying a lowered AC voltage to a DC voltage and a power output unit 8 for controlling the rectified output DC voltage to output a constant current to the output power of the LED lighting lamp 30. [ (10). The smart LED lighting device using the SMPS of the constant current type.
제1항에 있어서,
상기 SMPS(2)는 출력되는 전원의 전류를 피드백신호로 입력받아 출력전원의 전류값을 보상하여 오차를 줄임으로써 정전류가 출력될 수 있도록 제어하는 피드백제어부(12)를 포함하여 구성함을 특징으로 하는 정전류 방식의 SMPS를 이용한 스마트 LED 조명장치.
The method according to claim 1,
The SMPS 2 includes a feedback control unit 12 that receives a current of a power source as a feedback signal and compensates a current value of the output power source to reduce an error so that a constant current can be output. Smart LED lighting device using constant current SMPS.
제1항에 있어서,
상기 SMPS(2)는 DMX(Digital Multiplex) 512 유선통신에 의해 디지털 방식으로 LED 조명등(30)을 제어하는 유선통신부(18)를 포함하여 구성함을 특징으로 하는 정전류 방식의 SMPS를 이용한 스마트 LED 조명장치.
The method according to claim 1,
The SMPS 2 includes a wired communication unit 18 for controlling the LED lighting lamp 30 in a digital manner by DMX (Digital Multiplex) 512 wired communication. Device.
제1항에 있어서,
상기 SMPS(2)는 블루투스, 적외선 통신에 의한 제어신호를 수신하여 LED 조명등(30)의 점소등, 디밍을 제어하도록 하는 무선신호송수신부(20)를 포함하여 구성함을 특징으로 하는 정전류 방식의 SMPS를 이용한 스마트 LED 조명장치.
The method according to claim 1,
The SMPS (2) comprises a wireless signal transmitting and receiving unit (20) for receiving a control signal by Bluetooth or infrared communication and controlling the lighting and dimming of the LED lighting lamp (30) Smart LED lighting system using SMPS.
제1항에 있어서,
상기 SMPS(2)는 유, 무선통신에 의해 LED 조명등(30)의 디밍제어를 하기 위해 제어신호를 생성하는 디밍설정부(22)를 포함하여 구성함을 특징으로 하는 정전류 방식의 SMPS를 이용한 스마트 LED 조명장치.
The method according to claim 1,
The SMPS (2) comprises a dimming setting unit (22) for generating a control signal for dimming control of the LED lighting lamp (30) by wire or wireless communication. The SMPS LED lighting device.
제1항에 있어서,
상기 SMPS(2)는 디밍설정부(22)에 의한 제어신호에 의해 LED 조명등(30)으로 출력되는 전원의 전압 크기를 설정하여 LED 조명등(30)의 디밍을 제어하는 전압제어부(24)를 포함하여 구성함을 특징으로 하는 정전류 방식의 SMPS를 이용한 스마트 LED 조명장치.
The method according to claim 1,
The SMPS 2 includes a voltage control unit 24 for controlling the dimming of the LED lighting lamp 30 by setting a voltage level of a power source to be output to the LED lighting lamp 30 in response to a control signal from the dimming setting unit 22 The SM LED lighting device using the constant current type SMPS.
LED 조명장치의 제어방법에 있어서,
입력되는 교류전원을 LED 조명등(30)의 구동을 위한 직류전원으로 변환하여 LED 조명등(30)의 전원을 출력하는 단계와,
출력되는 LED 조명등(30) 전원의 전류를 피드백신호로 입력받아 출력전원의 전류값을 보상하여 정전류가 출력되도록 하는 단계와,
출력되는 LED 조명등(30) 전원의 전압, 전류값을 피드백신호로 입력받아 출력 전압의 변호를 감지하여 고장난 LED 조명등(30)을 확인하는 단계와,
출력전원의 전압, 전류의 크기 변화를 통해 LED 조명등(30)의 고장을 확인한 후 점등된 LED 조명등(30)에 과부하가 걸리지 않도록 SMPS(2)의 전력용량을 낮추도록 제어하는 단계로 이루어짐을 특징으로 하는 정전류 방식의 SMPS를 이용한 스마트 LED 조명장치의 제어방법.
A method of controlling an LED lighting apparatus,
Converting the input AC power into DC power for driving the LED lighting lamp (30) and outputting the power of the LED lighting lamp (30)
A step of receiving a current of a power source of the LED lighting lamp 30 as a feedback signal and compensating a current value of the output power source so as to output a constant current;
Receiving the voltage and current value of the LED lighting lamp 30 as a feedback signal and detecting the deflection of the output voltage to check the failed LED lighting lamp 30,
And controlling the power capacity of the SMPS 2 to be lowered so as not to overload the LED illumination lamp 30 after checking the failure of the LED illumination lamp 30 by changing the magnitude of the voltage and current of the output power source A method of controlling a smart LED lighting device using a constant current type SMPS.
KR1020160171494A 2016-12-15 2016-12-15 Smart led lighting apparatus using constant current type smps and control method thereof KR101960677B1 (en)

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