WO2008101383A1 - Led lamp assembly, series circuit of led lamp assembly and led lighting device - Google Patents

Led lamp assembly, series circuit of led lamp assembly and led lighting device Download PDF

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Publication number
WO2008101383A1
WO2008101383A1 PCT/CN2008/000204 CN2008000204W WO2008101383A1 WO 2008101383 A1 WO2008101383 A1 WO 2008101383A1 CN 2008000204 W CN2008000204 W CN 2008000204W WO 2008101383 A1 WO2008101383 A1 WO 2008101383A1
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WIPO (PCT)
Prior art keywords
led
series
branch
led lamp
lamp assembly
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Application number
PCT/CN2008/000204
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French (fr)
Chinese (zh)
Inventor
Xiangbai Xiao
Original Assignee
Shenzhen Unibero Technology Co., Ltd
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Publication of WO2008101383A1 publication Critical patent/WO2008101383A1/en

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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
    • 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
    • H05B45/34—Voltage stabilisation; Maintaining constant voltage
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Definitions

  • LED lamp assembly LED lamp assembly, LED lamp assembly series circuit and LED lighting device
  • the invention relates to lighting technology, in particular to an LED lighting device and an LED lamp assembly using a new generation illumination source, an LED semiconductor light source. Background technique
  • LED semiconductor light source has become the focus of the majority of engineering and technical personnel and merchants because of its small size, light weight, low energy consumption, high mechanical strength, safety and reliability, long life, flexible application, and easy management and control. LEDs have already shined in power equipment and places such as mobile phones, automobiles, traffic signs, displays and urban landscape lighting. In public lighting, home lighting, and industrial lighting, LEDs have also emerged.
  • LED lighting circuit structure Complexity, poor reliability, high cost, difficulty in overhauling, low recycling rate, and short service life. Therefore, the LED manufacturing process is continuously improved, the luminous efficiency and service life of the LED are improved, and the power consumption is high, the structure is simple, the stability is good, the reliability is high, the cost is low, the use and maintenance are convenient, the recycling efficiency is high, and the service life is long.
  • the new LED lighting circuit is an urgent task for promoting the use of LED "green lighting" today.
  • the LED lighting circuit mainly uses a switching regulator power supply driving circuit to connect multiple LED series branches of parallel LED load mode, that is, several LEDs are connected in series to form an LED series branch, and then multiple LED series branches are connected in parallel.
  • the above LED lighting circuit has the disadvantages of complicated circuit structure, large current, large power dissipation, low reliability, low repairing, low recycling rate, high cost, etc., which is not conducive to popularization, and currently only in decoration, advertising, emergency lighting, etc. Use at the place.
  • the series LED load has the advantages of small voltage transformation ratio, small output current, low power dissipation and good voltage regulation effect for the LED driver circuit. It has always been the preferred circuit structure for LED application development, but the existing series LED load circuit All adopt a single LED series connection. As long as one LED in the series branch is open, the entire LED series branch cannot work, or as long as one or more LEDs in the series branch are short-circuited, the remaining LEDs will be voltage-dropped. Increased and successively damaged, once the circuit fails, non-professionals are difficult to overhaul and can only be replaced as a whole. Therefore, such LED lighting circuits using a single series LED load also have disadvantages such as poor economical practicability, low reliability, short circuit life, and difficulty in maintenance, which is not conducive to popularization. Summary of the invention
  • One technical problem to be solved by the present invention is to overcome the defects of the series LED load circuit in the prior art, and to provide an LED lamp assembly with high reliability, easy maintenance, high recycling efficiency, and convenient replacement, and a DC lamp assembly.
  • An LED lamp assembly consisting of the aforementioned LED lamp assembly is connected in series.
  • an LED lamp assembly comprising an LED branch and a voltage stabilizing branch, wherein the LED branch and the voltage stabilizing branch are connected in parallel with each other.
  • the LED branch includes an LED
  • the voltage stabilizing branch includes a Zener diode.
  • the LED branch includes at least two LEDs connected in series with each other, and the voltage stabilizing branch includes a Zener diode.
  • the LED branch includes at least two LEDs connected in series with each other, and the voltage stabilizing branch includes at least two Zener diodes connected in series with each other.
  • a fuse or a fuse or a current limiting resistor is connected in series in the LED branch.
  • an LED lamp assembly series circuit including at least two LED lamp assemblies connected in series with each other; wherein the LED lamp assembly includes an LED branch and a voltage stabilizing branch, the LED branch And the voltage regulator branch are connected in parallel with each other to form a parallel circuit.
  • the LED branch includes an LED
  • the voltage stabilizing branch includes a Zener diode
  • the LED branch includes at least two LEDs connected in series with each other, and the voltage stabilizing branch includes a Zener diode.
  • the LED branch includes at least two LEDs connected in series with each other, and the voltage stabilizing branch includes at least two Zener diodes connected in series with each other.
  • a fuse or a fuse or a current limiting resistor is connected in series in the LED branch.
  • an LED lighting device includes at least two LED lamp assemblies and driving circuits thereof connected in series with each other, wherein the LED lamp assembly includes an LED branch and a voltage stabilizing branch, and the LED The branch circuit and the voltage stabilizing branch are connected in parallel to form a parallel circuit.
  • the LED branch includes an LED
  • the voltage stabilizing branch includes a Zener diode
  • the LED branch includes at least two LEDs connected in series with each other, and the voltage stabilizing branch includes a Zener diode.
  • the LED branch includes at least two connected in series Only the LED, the voltage stabilizing branch includes at least two Zener diodes connected in series with each other.
  • a fuse or a fuse or a current limiting resistor is connected in series in the LED branch.
  • the LED branch circuit and the parallel circuit of the voltage stabilizing branch are connected in parallel with a capacitor or a varistor or a capacitor in parallel and a varistor in parallel.
  • a series current circuit composed of at least two LED lamp assemblies connected in series is further connected with a current limiting resistor in series;
  • the driving circuit includes a connection connected to the AC mains access terminal.
  • a voltage circuit and a bridge rectifier circuit and a filter circuit connected in parallel at an output end of the bridge rectifier circuit; wherein the variable piezoelectric routing capacitor and the resistor are connected in parallel, the bridge rectifier circuit is composed of four rectifier diodes, and the filtering
  • the circuit consists of capacitors.
  • each LED lamp assembly has an internal voltage stabilization protection circuit, the operational reliability of the LED is greatly improved, and when the LED lamp assembly When one or part of the LEDs in the series circuit or LED lighting device is damaged, the series circuit or lighting device can continue to work to improve the use of the overall circuit or device: life; on the other hand, the ordinary user can malfunction in the LED lighting device circuit.
  • the LED lamp assembly is replaced like a normal light bulb, it is not necessary to replace the whole lamp to facilitate maintenance and repair, and to reduce the loss of the fault, which is beneficial to the standardized production and popularization of the LED lighting device.
  • the LED lighting device of the present invention can achieve better stability and reliability, a driving circuit having a simple structure and a low cost can be used, so that the cost of the entire device can be reduced.
  • FIG. 1 is a basic circuit schematic diagram of an LED lamp assembly of the present invention
  • FIG. 2 is a circuit diagram of an embodiment of an LED lamp assembly of the present invention.
  • FIG. 3 is a schematic diagram of a series circuit of LED lamp assemblies in the LED lighting device of the present invention.
  • the LED lamp assembly of the present invention includes an LED branch consisting of a fuse FU and a plurality of light emitting diodes (LEDs) VL connected in series, and a voltage stabilizing branch composed of a Zener diode VS.
  • the circuit and the regulation branch are connected in parallel with each other.
  • a fuse is connected in series in the LED branch shown in the figure, it can also be replaced by a fuse resistor or a current limiting resistor.
  • a plurality of Zener diodes may be connected in series to form a voltage stabilizing circuit to obtain a required voltage regulation value.
  • an LED can be used in parallel with a Zener diode to form the most basic LED lamp assembly. It is also possible to use multiple LEDs (for example, two, three, ...) to form an LED branch in series, and then to stabilize the voltage.
  • the branches are connected in parallel to form an LED lamp assembly.
  • FIG. 2 is a circuit diagram of one embodiment of an LED lamp assembly of the present invention.
  • eight LEDs are connected in series in the LED branch.
  • the rated voltage drop of each LED is 3 volts, the rated current is 20 mA, the rated power is 0. 06W, the rated power of 8 LEDs is 0. 48 W, which takes 65% of the rated power, and the rated value of the circuit unit of the component is obtained.
  • the power is about 0.3 W; the voltage regulator diode is selected between 20-24 V, the power is 1 W; the fuse current is 50 mA.
  • FIG. 3 is a schematic diagram of a series circuit of LED lamp assemblies in the LED lighting device of the present invention. As shown in Fig. 3, a plurality of LED lamp assemblies as shown in Fig. 1 are connected in series in a series circuit of LED lamp assemblies. In addition, a resistor R1 is also connected in series in the LED lamp assembly series circuit.
  • the LED lamp assembly series circuit shown in Figure 3 works as follows:
  • the LED lamp assembly series circuit is equivalent to all LEDs connected in series, operating with a single branch small current; if one of the LED lamp assemblies Only one or more LEDs open, which will cause the voltage across the LED lamp assembly to rise, causing its Zener diode VS to conduct, and maintain the working voltage drop at both ends is basically unchanged, continue to be the other LED lamp assembly circuit unit Providing a normal operating current; if one or more LEDs in a certain LED lamp module circuit unit are short-circuited, the voltage across the parallel terminals will be reduced, and the Zener diode VS will have no current flowing, and the LED lamp assembly circuit unit has two The reduced voltage portion of the terminal will be dispersed to other LEDs On the lamp assembly, the Zener diode VS of the other LED lamp assembly is turned on, so that the component circuit does not work due to its Zener diode VS, and the current flowing through the fuse FU flows through
  • each LED lamp component in the circuit has a voltage regulation protection circuit, as long as the drive circuit can provide a suitable voltage range to maintain the stable operation of the LED. Therefore, the LED lamp assembly series circuit can be driven by a simple and low-cost drive circuit.
  • Fig. 4 is a circuit diagram showing a series circuit of LED lamp assemblies and a driving circuit thereof in an embodiment of the LED lighting device of the present invention.
  • the LED lighting device includes an LED lamp assembly serial circuit and a driving circuit A thereof.
  • a capacitor series C3 is formed by a capacitor C2, a resistor R2, a rectifier diode VD1-4, and a capacitor C1, wherein the capacitor C2 and the resistor R2 are connected in parallel to form a transformer circuit and a rectifier diode VD1-4.
  • the bridge rectifier is formed, and the capacitor C1 is connected in parallel at the output end of the bridge rectifier to form a filter circuit.
  • the drive circuit is very simple, there is no voltage regulator circuit, and its output voltage varies with load current.
  • the LED lamp assembly series circuit of the LED lighting device of the present invention has a group multi-stage voltage regulator protection circuit, and the entire LED lamp circuit operates with a small current of a single branch, there is no other branch influence, and these features are skillfully compensated.
  • the above disadvantages of the capacitor series transformer type drive circuit A are very simple, there is no voltage regulator circuit, and its output voltage varies with load current.
  • the LED lamp assembly series circuit of the LED lighting device of the present invention has a group multi-stage voltage regulator protection circuit, and the entire LED lamp circuit operates with a small current of a single branch, there is no other branch influence, and these features are skillfully compensated.
  • the parallel circuit of the LED branch and the voltage stabilizing branch in the LED lamp assembly of the present invention may be connected in parallel with a capacitor or a varistor.
  • the parallel circuit of the LED branch and the voltage stabilizing branch in the LED lamp assembly of the present invention can be simultaneously connected in parallel with one capacitor and one varistor. The above capacitors filter and eliminate spike voltage interference, and the varistor acts as an overvoltage protection.
  • the LED branches in the LED lamp assembly used in the circuit diagram of the LED lighting device described in FIG. 4 are composed of 8 LEDs in series, in other embodiments, the LED lighting device of the present invention may employ different LEDs.
  • the lamp assembly has different numbers of LEDs in each LED lamp assembly, or the number of LEDs in a part of the LED lamp assembly is different, or the composition of the voltage stabilizing branch is different.
  • the LED lighting device of the invention adopts the LED lamp component series circuit to have the following beneficial effects: First, the LED lamp component series circuit is a composite series LED load composed of LED lamp components connected in series, and the composite series LED load enables maintenance of the LED lighting device.
  • the maintenance is simple and convenient, especially when the single or partial LED failure of the LED lighting device can continue to maintain the remaining LEDs as usual, so that the user can intuitively repair the faulty part, and can continue to use the lighting without rushing for maintenance, which is beneficial to It is convenient for users to use, overhaul and reduce fault loss and extend the life of LED lighting devices.
  • the LED lamp assembly series circuit creatively integrates the voltage stabilization protection circuit into each component circuit unit of the series LED load circuit, which can effectively enhance the protection of the LED and improve the stability and reliability of the LED.
  • the LED lamp can not require high voltage regulation performance of the driving circuit, and even does not need a special voltage stabilizing circuit, so that the LED lamp driving circuit can be extremely simple, which is beneficial to reducing the cost of the LED lamp.
  • the circuit unit in the above LED lamp assembly can be mounted with a suitable circuit board and a casing, and a standard LED lamp assembly of different rated power can be made according to the number of LEDs and the rated voltage.
  • a standard LED lamp assembly of different rated power can be made according to the number of LEDs and the rated voltage.
  • it can be designed into various shapes such as a wick, a lamp cup, a bulb, a lamp chain, a lamp bead, a lamp ring, and the like.
  • These components are mounted in the base of the LED lighting unit in an easy-to-remove configuration.
  • the component parameters with the * in Figure 4 can be based on the number and rated power of the series LED lamp assemblies.

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

Abstract

A LED lamp assembly, a series circuit of the LED lamp assembly and a LED lighting device comprising the LED lamp assembly. The LED lamp assembly comprises a LED branch and a voltage stabilizing branch in parallel, wherein the LED branch comprises one LED (VL ) or at least two LEDs (VL) in series, optionally a fuse (FU ), a safety resistor or a current limiting resistor is connected in series with the LED branch further; and wherein the voltage stabilizing branch comprises one voltage stabilizing diode (VS ) or at least two voltage stabilizing diodes (VS) in series.

Description

LED灯组件、 LED灯组件串联电路及 LED照明装置  LED lamp assembly, LED lamp assembly series circuit and LED lighting device
技术领域 Technical field
本发明涉及照明技术，尤其涉及一种采用新一代照明光源—— LED半导体 光源的 LED照明装置及 LED灯组件。 背景技术  The invention relates to lighting technology, in particular to an LED lighting device and an LED lamp assembly using a new generation illumination source, an LED semiconductor light source. Background technique
近年来， 在照明领域提出了 "绿色照明"的新概念， 意指大力发展和推 广高效、 节能、 环保、 健康的照明器具， 淘汰和替换传统的低效照明光源， 节约照明用电。 在用电照明技术领域， 从以白炽灯为代表的热辐射光源， 到 以荧光灯为代表的气体放电光源， 发展到以 LED半导体为代表的固态发光光 源。 LED半导体光源以其体积小、 重量轻、 能耗低、 机械强度大、 安全可靠、 寿命长、 应用灵活、 便于管理控制等诸多优点， 一直成为广大工程技术人员 和商家的关注焦点， 在电话、 手机、 汽车、 交通指示、 显示屏和城市景观照 明等用电设备和场所， LED已经大放光彩， 在公共照明、家庭照明、工业照明 领域， LED也已崭露头角。  In recent years, a new concept of “green lighting” has been proposed in the field of lighting, which means vigorously developing and promoting efficient, energy-saving, environmentally-friendly and healthy lighting fixtures, eliminating and replacing traditional low-efficiency lighting sources, and saving lighting power. In the field of electric lighting technology, from a heat radiation source represented by an incandescent lamp to a gas discharge source represented by a fluorescent lamp, a solid-state light source represented by an LED semiconductor has been developed. LED semiconductor light source has become the focus of the majority of engineering and technical personnel and merchants because of its small size, light weight, low energy consumption, high mechanical strength, safety and reliability, long life, flexible application, and easy management and control. LEDs have already shined in power equipment and places such as mobile phones, automobiles, traffic signs, displays and urban landscape lighting. In public lighting, home lighting, and industrial lighting, LEDs have also emerged.
目前， LED在家庭和公共照明方面的应用还没有得到普及，也没有形成相 关的技术标准和行业标准， 其原因除了 LED本身工艺和性能不够成熟以外， 另一个重要原因是由于 LED照明电路存在结构复杂、 可靠性差、 成本高以及 检修难度大、 再生利用率低、 使用寿命短等不足。 因此， 不断改进 LED制造 工艺， 提高 LED的发光效率和使用寿命以及极力开发用电效率高、 结构简单、 稳定性好、 可靠性高、 成本低廉、 使用维修方便以及再生利用率高、 寿命长 的新型 LED照明电路， 是当今推广使用 LED "绿色照明"的当务之急。  At present, the application of LED in home and public lighting has not been popularized, nor has it formed relevant technical standards and industry standards. The reason is that, besides the process and performance of LED itself is not mature enough, another important reason is due to the existence of LED lighting circuit structure. Complexity, poor reliability, high cost, difficulty in overhauling, low recycling rate, and short service life. Therefore, the LED manufacturing process is continuously improved, the luminous efficiency and service life of the LED are improved, and the power consumption is high, the structure is simple, the stability is good, the reliability is high, the cost is low, the use and maintenance are convenient, the recycling efficiency is high, and the service life is long. The new LED lighting circuit is an urgent task for promoting the use of LED "green lighting" today.
由于单只 LED的工作电压低， 亮度小， 一台 LED灯一般都需要多只 LED 才能达到所需要的亮度， 而且 LED灯电路必须要有驱动电路。 目前， LED照明 电路主要是采用开关稳压电源驱动电路连接多个 LED串联支路的并联 LED负 载方式， 即将几个 LED串联形成 LED串联支路， 再将多个 LED串联支路并联  Since the operating voltage of a single LED is low and the brightness is small, an LED lamp generally requires multiple LEDs to achieve the required brightness, and the LED lamp circuit must have a driving circuit. At present, the LED lighting circuit mainly uses a switching regulator power supply driving circuit to connect multiple LED series branches of parallel LED load mode, that is, several LEDs are connected in series to form an LED series branch, and then multiple LED series branches are connected in parallel.
确认本 后与开关稳压电源驱动电路连接。 上述 LED照明电路存在电路结构复杂、 电 流大、 耗散功率大、 可靠性低、 不易捡修以及再生利用率低、 成本高等缺点， 不利于普及推广， 目前一般只在装饰、 广告、 应急照明等场所使用。 Confirmation After that, it is connected to the switching regulator power supply drive circuit. The above LED lighting circuit has the disadvantages of complicated circuit structure, large current, large power dissipation, low reliability, low repairing, low recycling rate, high cost, etc., which is not conducive to popularization, and currently only in decoration, advertising, emergency lighting, etc. Use at the place.
串联 LED负载对于 LED驱动电路来说， 具有变压倍率小， 输出电流小， 耗散功率低、 稳压效果好等优点， 一直是 LED应用开发的首选电路结构， 但 现有的串联 LED负载电路都是采用单一的 LED串联方式， 只要串联支路中一 只 LED开路， 整个 LED串联支路就不能工作， 或只要串联支路中一只或多只 LED短路， 就会使其余的 LED压降增高而相继损坏， 一旦电路发生故障， 非专 业人员难以检修， 只能整体更换。 因此， 这类采用单一的串联 LED负载的 LED 照明电路， 同样存在经济实用性差、 可靠性低、 电路寿命短、 不易检修等缺 点， 不利于普及应用。 发明内容  The series LED load has the advantages of small voltage transformation ratio, small output current, low power dissipation and good voltage regulation effect for the LED driver circuit. It has always been the preferred circuit structure for LED application development, but the existing series LED load circuit All adopt a single LED series connection. As long as one LED in the series branch is open, the entire LED series branch cannot work, or as long as one or more LEDs in the series branch are short-circuited, the remaining LEDs will be voltage-dropped. Increased and successively damaged, once the circuit fails, non-professionals are difficult to overhaul and can only be replaced as a whole. Therefore, such LED lighting circuits using a single series LED load also have disadvantages such as poor economical practicability, low reliability, short circuit life, and difficulty in maintenance, which is not conducive to popularization. Summary of the invention
本发明所要解决的一个技术问题是克服现有技术中串联 LED负载电路所 存在的缺陷， 提供一种可靠性高、容易检修、再生利用率高、更换方便的 LED 灯组件， 另外还提供一种由前述 LED灯组件组成的 LED灯组件串联电路。  One technical problem to be solved by the present invention is to overcome the defects of the series LED load circuit in the prior art, and to provide an LED lamp assembly with high reliability, easy maintenance, high recycling efficiency, and convenient replacement, and a DC lamp assembly. An LED lamp assembly consisting of the aforementioned LED lamp assembly is connected in series.
本发明所要解决的另一技术问题是克服现有技术中串联 LED负载电路所 存在的缺陷， 提供一种包含至少两个上述 LED灯组件及其驱动电路的 LED照 明装置， 其可靠性高、 易于检修、 使用寿命长。 根据本发明的一方面， 提供一种 LED灯组件， 包括 LED支路和稳压支路， 其中， 所述 LED支路和稳压支路相互并联。  Another technical problem to be solved by the present invention is to overcome the defects of the series LED load circuit in the prior art, and provide an LED lighting device including at least two LED lamp assemblies and a driving circuit thereof, which is highly reliable and easy. Overhaul and long service life. According to an aspect of the invention, an LED lamp assembly is provided, comprising an LED branch and a voltage stabilizing branch, wherein the LED branch and the voltage stabilizing branch are connected in parallel with each other.
在本发明所述的 LED灯组件中，所述 LED支路包括一只 LED,所述稳压支 路包括一只稳压二极管。 '  In the LED lamp assembly of the present invention, the LED branch includes an LED, and the voltage stabilizing branch includes a Zener diode. '
在本发明所述的 LED灯组件中， 所述 LED支路包括相互串联的至少两只 LED, 所述稳压支路包括一只稳压二极管。  In the LED lamp assembly of the present invention, the LED branch includes at least two LEDs connected in series with each other, and the voltage stabilizing branch includes a Zener diode.
在本发明所述的 LED灯组件中， 所述 LED支路包括相互串联的至少两只 LED, 所述稳压支路包括相互串联的至少两只稳压二极管。 在本发明所述的 LED灯组件中， 所述 LED支路中串联有一只保险丝或保 险电阻或限流电阻。 In the LED lamp assembly of the present invention, the LED branch includes at least two LEDs connected in series with each other, and the voltage stabilizing branch includes at least two Zener diodes connected in series with each other. In the LED lamp assembly of the present invention, a fuse or a fuse or a current limiting resistor is connected in series in the LED branch.
在本发明所述的 LED灯组件中， 所述 LED支路和稳压支路的并联电路并 联有一只电容或一只压敏电阻或既并联有一只电容又并联有一只压敏电阻。 根据本发明的另一方面， 提供一种 LED灯组件串联电路， 包括相互串联 的至少两个 LED灯组件； 其中， 所述 LED灯组件包括 LED支路和稳压支路， 所述 LED支路和稳压支路相互并联构成并联电路。  In the LED lamp assembly of the present invention, the LED branch and the parallel circuit of the voltage stabilizing branch are connected in parallel with a capacitor or a varistor or a capacitor in parallel and a varistor in parallel. According to another aspect of the present invention, an LED lamp assembly series circuit is provided, including at least two LED lamp assemblies connected in series with each other; wherein the LED lamp assembly includes an LED branch and a voltage stabilizing branch, the LED branch And the voltage regulator branch are connected in parallel with each other to form a parallel circuit.
在本发明所述的 LED灯组件串联电路中，所述 LED支路包括一只 LED,所 述稳压支路包括一只稳压二极管。  In the LED lamp assembly series circuit of the present invention, the LED branch includes an LED, and the voltage stabilizing branch includes a Zener diode.
在本发明所述的 LED灯组件串联电路中， 所述 LED支路包括相互串联的 至少两只 LED, 所述稳压支路包括一只稳压二极管。  In the LED lamp assembly series circuit of the present invention, the LED branch includes at least two LEDs connected in series with each other, and the voltage stabilizing branch includes a Zener diode.
在本发明所述的 LED灯组件串联电路中， 所述 LED支路包括相互串联的 至少两只 LED, 所述稳压支路包括相互串联的至少两只稳压二极管。  In the LED lamp assembly series circuit of the present invention, the LED branch includes at least two LEDs connected in series with each other, and the voltage stabilizing branch includes at least two Zener diodes connected in series with each other.
在本发明所述的 LED灯组件串联电路中， 所述 LED支路中串联有一只保 险丝或保险电阻或限流电阻。  In the LED lamp assembly series circuit of the present invention, a fuse or a fuse or a current limiting resistor is connected in series in the LED branch.
在本发明所述的 LED灯组件串联电路中， 所述 LED支路和稳压支路的并 联电路并联有一只电容或一只压敏电阻或既并联有一只电容又并联有一只压 敏电阻。 根据本发明的又一方面， 提供一种 LED照明装置， 包括相互串联的至少 两个 LED灯组件及其驱动电路， 其中， 所述 LED灯组件包括 LED支路和稳压 支路， 所述 LED支路和稳压支路相互并联构成并联电路。  In the LED lamp assembly series circuit of the present invention, the parallel circuit of the LED branch and the voltage stabilizing branch has a capacitor or a varistor in parallel or a capacitor connected in parallel with a varistor. According to still another aspect of the present invention, an LED lighting device includes at least two LED lamp assemblies and driving circuits thereof connected in series with each other, wherein the LED lamp assembly includes an LED branch and a voltage stabilizing branch, and the LED The branch circuit and the voltage stabilizing branch are connected in parallel to form a parallel circuit.
在本发明所述的 LED照明装置中，所述 LED支路包括一只 LED,所述稳压 支路包括一只稳压二极管。  In the LED lighting device of the present invention, the LED branch includes an LED, and the voltage stabilizing branch includes a Zener diode.
在本发明所述的 LED照明装置中， 所述 LED支路包括相互串联的至少两 只 LED, 所述稳压支路包括一只稳压二极管。  In the LED lighting device of the present invention, the LED branch includes at least two LEDs connected in series with each other, and the voltage stabilizing branch includes a Zener diode.
在本发明所述的 LED照明装置中， 所述 LED支路包括相互串联的至少两 只 LED, 所述稳压支路包括相互串联的至少两只稳压二极管。 In the LED lighting device of the present invention, the LED branch includes at least two connected in series Only the LED, the voltage stabilizing branch includes at least two Zener diodes connected in series with each other.
在本发明所述的 LED照明装置中， 所述 LED支路中串联有一只保险丝或 保险电阻或限流电阻。  In the LED lighting device of the present invention, a fuse or a fuse or a current limiting resistor is connected in series in the LED branch.
在本发明所述的 LED照明装置中， 所述 LED支路和稳压支路的并联电路 并联有一只电容或一只压敏电阻或既并联有一只电容又并联有一只压敏电 阻。  In the LED lighting device of the present invention, the LED branch circuit and the parallel circuit of the voltage stabilizing branch are connected in parallel with a capacitor or a varistor or a capacitor in parallel and a varistor in parallel.
在本发明所述的 LED照明装置中， 所述相互串联的至少两个 LED灯组件 构成的串联电路中还串联有一只限流电阻； 所述驱动电路包括与交流市电接 入端相连的变压电路和桥式整流电路以及并联在所述桥式整流电路输出端的 滤波电路； 其中所述变压电路由电容和电阻并联组成、 所述桥式整流电路由 四只整流二极管组成、 所述滤波电路由电容组成。 实施本发明的 LED灯组件、 LED灯组件串联电路及 LED照明装置具有以下 有益效果：一方面每个 LED灯组件都具有内部稳压保护电路， LED的工作可靠 性大大提高， 且当 LED灯组件串联电路或 LED照明装置中的一只或部分 LED 损坏时， 串联电路或照明装置仍能继续工作， 以提高整体电路或装置的使用 ：寿命； 另一方面可以使普通用户在 LED照明装置电路故障时， 可以象更换普 通灯泡一样更换 LED灯组件， 而不必更换整灯， 以方便维护检修， 降低故障 损失， 有益于 LED照明装置的标准化生产和普及应用。  In the LED lighting device of the present invention, a series current circuit composed of at least two LED lamp assemblies connected in series is further connected with a current limiting resistor in series; the driving circuit includes a connection connected to the AC mains access terminal. a voltage circuit and a bridge rectifier circuit and a filter circuit connected in parallel at an output end of the bridge rectifier circuit; wherein the variable piezoelectric routing capacitor and the resistor are connected in parallel, the bridge rectifier circuit is composed of four rectifier diodes, and the filtering The circuit consists of capacitors. The LED lamp assembly, the LED lamp assembly series circuit and the LED illumination device embodying the invention have the following beneficial effects: on the one hand, each LED lamp assembly has an internal voltage stabilization protection circuit, the operational reliability of the LED is greatly improved, and when the LED lamp assembly When one or part of the LEDs in the series circuit or LED lighting device is damaged, the series circuit or lighting device can continue to work to improve the use of the overall circuit or device: life; on the other hand, the ordinary user can malfunction in the LED lighting device circuit. When the LED lamp assembly is replaced like a normal light bulb, it is not necessary to replace the whole lamp to facilitate maintenance and repair, and to reduce the loss of the fault, which is beneficial to the standardized production and popularization of the LED lighting device.
另外本发明的 LED照明装置在能达到较好的稳定性和可靠性的情况下， 可以使用结构简单、 成本低廉的驱动电路， 因而可以降低整个装置的成本。  In addition, in the case where the LED lighting device of the present invention can achieve better stability and reliability, a driving circuit having a simple structure and a low cost can be used, so that the cost of the entire device can be reduced.
以下结合附图通过实施例对本发明作进一步说明。 附图说明  The invention will be further illustrated by the following examples in conjunction with the accompanying drawings. DRAWINGS
图 1为本发明 LED灯组件的基本电路原理图；  1 is a basic circuit schematic diagram of an LED lamp assembly of the present invention;
图 2为本发明 LED灯组件的一个实施例电路图；  2 is a circuit diagram of an embodiment of an LED lamp assembly of the present invention;
图 3为本发明 LED照明装置中 LED灯组件串联电路的原理图；  3 is a schematic diagram of a series circuit of LED lamp assemblies in the LED lighting device of the present invention;
图 4为本发明 LED照明装置的一个实施例中 LED灯组件串联电路及其驱 动电路的电路图。 具体实施方式 4 is a series circuit of an LED lamp assembly and an embodiment thereof in an embodiment of an LED lighting device of the present invention; Circuit diagram of the moving circuit. detailed description
图 1为本发明 LED灯组件的电路原理图。 如图 1所示， 本发明的 LED灯 组件中包括由一个保险丝 FU和多个发光二极管 (LED) VL串联组成的 LED支路 和一个由稳压二极管 VS组成的稳压支路， 该 LED支路和稳压支路相互并联。  1 is a circuit schematic diagram of an LED lamp assembly of the present invention. As shown in FIG. 1 , the LED lamp assembly of the present invention includes an LED branch consisting of a fuse FU and a plurality of light emitting diodes (LEDs) VL connected in series, and a voltage stabilizing branch composed of a Zener diode VS. The circuit and the regulation branch are connected in parallel with each other.
需要说明的是， 虽然图中所示的 LED支路中串联的是一个保险丝， 但其 也可由保险电阻或限流电阻替代。 另外， 虽然图中仅画出了一只稳压二极管， 但在实际应用中， 也可以根据需要将多个稳压二极管串联起来组成稳压电路， 以获得所需的稳压值。 还有， 可以采用一只 LED与一只稳压二极管并联组成 最基本的 LED灯组件， 也可以用多只 LED (例如二只、 三只、 ……）串联组成 LED支路， 再与稳压支路并联组成 LED灯组件。  It should be noted that although a fuse is connected in series in the LED branch shown in the figure, it can also be replaced by a fuse resistor or a current limiting resistor. In addition, although only one Zener diode is shown in the figure, in practical applications, a plurality of Zener diodes may be connected in series to form a voltage stabilizing circuit to obtain a required voltage regulation value. In addition, an LED can be used in parallel with a Zener diode to form the most basic LED lamp assembly. It is also possible to use multiple LEDs (for example, two, three, ...) to form an LED branch in series, and then to stabilize the voltage. The branches are connected in parallel to form an LED lamp assembly.
图 2为本发明 LED灯组件的一个实施例电路图。在图 2中， LED支路中串 联了 8只 LED。 每只 LED的额定压降为 3伏， 额定电流为 20mA， 额定功率为 0. 06W, 8只 LED的额定功率为 0. 48 W， 取额定功率的 65%， 得出该组件电路 单元的额定功率约为 0. 3 W; 稳压二极管的稳压值选在 20- 24V之间， 功率选 1 W; 保险丝的电流值选 50 mA。  2 is a circuit diagram of one embodiment of an LED lamp assembly of the present invention. In Figure 2, eight LEDs are connected in series in the LED branch. The rated voltage drop of each LED is 3 volts, the rated current is 20 mA, the rated power is 0. 06W, the rated power of 8 LEDs is 0. 48 W, which takes 65% of the rated power, and the rated value of the circuit unit of the component is obtained. The power is about 0.3 W; the voltage regulator diode is selected between 20-24 V, the power is 1 W; the fuse current is 50 mA.
图 3为本发明 LED照明装置中 LED灯组件串联电路的原理图。 如图 3所 示的 LED灯组件串联电路中串联有多个如图 1所示的 LED灯组件。 此外， 该 LED灯组件串联电路中还串联有一个电阻 Rl。  3 is a schematic diagram of a series circuit of LED lamp assemblies in the LED lighting device of the present invention. As shown in Fig. 3, a plurality of LED lamp assemblies as shown in Fig. 1 are connected in series in a series circuit of LED lamp assemblies. In addition, a resistor R1 is also connected in series in the LED lamp assembly series circuit.
图 3所示的 LED灯组件串联电路的工作原理如下：  The LED lamp assembly series circuit shown in Figure 3 works as follows:
在正常工作时， 由于 LED灯组件的稳压二极管 VS处于临界不导通状态， LED灯组件串联电路等效于全部 LED串联， 以单支路小电流工作；如果某一个 LED灯组件中的一只或多只 LED开路，将导致该组 LED灯组件两端的电压升高， 使其稳压二极管 VS导通工作， 并维持其两端的工作压降基本不变， 继续为其 它 LED灯组件电路单元提供正常工作电流； 如果某一个 LED灯组件电路单元 中的一只或多只 LED短路， 将导致其并联两端的电压降低， 其稳压二极管 VS 将无电流流过，该 LED灯组件电路单元两端降低的电压部分将分散到其它 LED 灯组件上， 导致其它 LED灯组件的稳压二极管 VS导通工作， 这样， 该组件电 路因其稳压二极管 VS不工作， 流过其保险丝 FU的电流比流过其它 LED灯组 件中保险丝 FU的电流大， 当 LED短路趋于严重时，该组件电路中的保险丝 FU 将率先保护断幵， 整个电路回到上述 LED开路故障的工作状态， 以维持其余 LED灯组件继续正常工作。 In normal operation, since the Zener diode VS of the LED lamp assembly is in a critical non-conducting state, the LED lamp assembly series circuit is equivalent to all LEDs connected in series, operating with a single branch small current; if one of the LED lamp assemblies Only one or more LEDs open, which will cause the voltage across the LED lamp assembly to rise, causing its Zener diode VS to conduct, and maintain the working voltage drop at both ends is basically unchanged, continue to be the other LED lamp assembly circuit unit Providing a normal operating current; if one or more LEDs in a certain LED lamp module circuit unit are short-circuited, the voltage across the parallel terminals will be reduced, and the Zener diode VS will have no current flowing, and the LED lamp assembly circuit unit has two The reduced voltage portion of the terminal will be dispersed to other LEDs On the lamp assembly, the Zener diode VS of the other LED lamp assembly is turned on, so that the component circuit does not work due to its Zener diode VS, and the current flowing through the fuse FU flows through the fuse FU of the other LED lamp assembly. The current is large. When the LED short circuit tends to be serious, the fuse FU in the component circuit will take the lead in protecting the fault, and the whole circuit returns to the above working state of the LED open circuit fault to maintain the remaining LED lamp components to continue to work normally.
此外， LED灯组件串联电路的全部 LED以单支路小电流工作，且其电路中 每个 LED灯组件都具有稳压保护电路， 只要驱动电路能够提供一个合适的电 压范围就能维持 LED稳定工作，因此， LED灯组件串联电路可以釆用结构简单、 成本低廉的驱动电路来驱动。  In addition, all the LEDs of the series circuit of the LED lamp assembly operate with a small current of a single branch, and each LED lamp component in the circuit has a voltage regulation protection circuit, as long as the drive circuit can provide a suitable voltage range to maintain the stable operation of the LED. Therefore, the LED lamp assembly series circuit can be driven by a simple and low-cost drive circuit.
图 4为本发明 LED照明装置的一个实施例中 LED灯组件串联电路及其驱 动电路的电路图。如图 4所示，本实施例中， LED照明装置包括 LED灯组件串 联电路及其驱动电路 A。 在该 LED照明装置中， 由电容 C2、 电阻 R2、 整流二 极管 VD1- 4和电容 C1组成电容串联变压型驱动电路 A,其中， 电容 C2和电阻 R2并联组成变压电路、整流二极管 VD1-4组成桥式整流器、 电容 C1并联在桥 式整流器的输出端组成滤波电路。 该驱动电路十分简单， 没有稳压电路， 其 输出电压随负载电流变化而变化。 但由于本发明 LED照明装置中的 LED灯组 件串联电路本身具有分组多级稳压保护电路， 而且整个 LED灯电路以单支路 小电流工作， 没有别的支路影响， 这些特点巧妙的弥补了电容串联变压型驱 动电路 A的上述缺点。  Fig. 4 is a circuit diagram showing a series circuit of LED lamp assemblies and a driving circuit thereof in an embodiment of the LED lighting device of the present invention. As shown in FIG. 4, in the embodiment, the LED lighting device includes an LED lamp assembly serial circuit and a driving circuit A thereof. In the LED lighting device, a capacitor series C3 is formed by a capacitor C2, a resistor R2, a rectifier diode VD1-4, and a capacitor C1, wherein the capacitor C2 and the resistor R2 are connected in parallel to form a transformer circuit and a rectifier diode VD1-4. The bridge rectifier is formed, and the capacitor C1 is connected in parallel at the output end of the bridge rectifier to form a filter circuit. The drive circuit is very simple, there is no voltage regulator circuit, and its output voltage varies with load current. However, since the LED lamp assembly series circuit of the LED lighting device of the present invention has a group multi-stage voltage regulator protection circuit, and the entire LED lamp circuit operates with a small current of a single branch, there is no other branch influence, and these features are skillfully compensated. The above disadvantages of the capacitor series transformer type drive circuit A.
作为另一种实施方案， 本发明的 LED灯组件中的 LED支路和稳压支路的 并联电路还可以与一只电容或一只压敏电阻并联。 作为再一实施例， 本发明 的 LED灯组件中的 LED支路和稳压支路的并联电路还可以同时既与一只电容 并联又与一只压敏电阻并联。 上述电容起滤波和消除尖峰电压干扰作用， 压 敏电阻起过压保护作用。  As another embodiment, the parallel circuit of the LED branch and the voltage stabilizing branch in the LED lamp assembly of the present invention may be connected in parallel with a capacitor or a varistor. As still another embodiment, the parallel circuit of the LED branch and the voltage stabilizing branch in the LED lamp assembly of the present invention can be simultaneously connected in parallel with one capacitor and one varistor. The above capacitors filter and eliminate spike voltage interference, and the varistor acts as an overvoltage protection.
虽然图 4中所述的 LED照明装置的电路图中采用的 LED灯组件中的 LED 支路都是由 8只 LED串联组成， 但在其它实施例中， 本发明的 LED照明装置 可采用不同的 LED灯组件，各个 LED灯组件中的 LED数量不同，或一部分 LED 灯组件中的 LED数量不同， 或稳压支路的组成结构不同。 本发明 LED照明装置采用 LED灯组件串联电路具有如下有益效果： 首先， LED灯组件串联电路是一种由 LED灯组件串联组成的复合串联 LED 负载， 这种复合串联 LED负载使 LED照明装置的维护检修既简单又方便， 特 别是在 LED照明装置的单个或部分 LED故障时， 仍能继续维持其余 LED照常 工作， 使用户可以直观的检修故障部位， 并可以继续使用照明而不必急于检 修， 有益于方便用户使用、 检修和减少故障损失以及延长了 LED照明装置使 用寿命。 Although the LED branches in the LED lamp assembly used in the circuit diagram of the LED lighting device described in FIG. 4 are composed of 8 LEDs in series, in other embodiments, the LED lighting device of the present invention may employ different LEDs. The lamp assembly has different numbers of LEDs in each LED lamp assembly, or the number of LEDs in a part of the LED lamp assembly is different, or the composition of the voltage stabilizing branch is different. The LED lighting device of the invention adopts the LED lamp component series circuit to have the following beneficial effects: First, the LED lamp component series circuit is a composite series LED load composed of LED lamp components connected in series, and the composite series LED load enables maintenance of the LED lighting device. The maintenance is simple and convenient, especially when the single or partial LED failure of the LED lighting device can continue to maintain the remaining LEDs as usual, so that the user can intuitively repair the faulty part, and can continue to use the lighting without rushing for maintenance, which is beneficial to It is convenient for users to use, overhaul and reduce fault loss and extend the life of LED lighting devices.
其次， LED灯组件串联电路创意地将稳压保护电路有机地融入串联 LED负 载电路的每一个组件电路单元中， 一方面可以有效地加强对 LED的保护， 提 高 LED的稳定性和可靠性， 另一方面可以使 LED灯对驱动电路的稳压性能要 求不高， 甚至不需要专门的稳压电路， 使 LED灯驱动电路可以极为简单， 有 益于降低 LED灯的成本。  Secondly, the LED lamp assembly series circuit creatively integrates the voltage stabilization protection circuit into each component circuit unit of the series LED load circuit, which can effectively enhance the protection of the LED and improve the stability and reliability of the LED. On the one hand, the LED lamp can not require high voltage regulation performance of the driving circuit, and even does not need a special voltage stabilizing circuit, so that the LED lamp driving circuit can be extremely simple, which is beneficial to reducing the cost of the LED lamp.
在本发明的 LED照明装置中， 可以将上述 LED灯组件中的电路单元配以 合适的电路板和外壳安装， 根据 LED的数量和额定电压可以做成不同额定功 率的标准 LED灯组件。 另夕卜， 还可以设计成各种形状， 如灯芯、 灯杯、 灯泡、 灯链、 灯珠、 灯环等。 这些组件以易于拆卸更换的结构安装在 LED照明装置 的灯座中。 还需要说明的是， 图 4中带 *号的元件参数可以根据串联 LED灯组 件的数量和额定功率而定。  In the LED lighting device of the present invention, the circuit unit in the above LED lamp assembly can be mounted with a suitable circuit board and a casing, and a standard LED lamp assembly of different rated power can be made according to the number of LEDs and the rated voltage. In addition, it can be designed into various shapes such as a wick, a lamp cup, a bulb, a lamp chain, a lamp bead, a lamp ring, and the like. These components are mounted in the base of the LED lighting unit in an easy-to-remove configuration. It should also be noted that the component parameters with the * in Figure 4 can be based on the number and rated power of the series LED lamp assemblies.

Claims

权 利 要 求 Rights request
1、 一种 LED灯组件， 其特征在于， 包括 LED支路和稳压支路， 其中， 所 述 LED支路和稳压支路相互并联。 An LED lamp assembly, comprising: an LED branch and a voltage stabilizing branch, wherein the LED branch and the voltage stabilizing branch are connected in parallel with each other.
2、 根据权利要求 1所述的 LED灯组件， 其特征在于， 所述 LED支路包括 一只 LED, 所述稳压支路包括一只稳压二极管。  2. The LED lamp assembly of claim 1 wherein said LED branch comprises an LED and said voltage stabilizing branch comprises a Zener diode.
3、 根据权利要求 1所述的 LED灯组件， 其特征在于， 所述 LED支路包括 相互串联的至少两只 LED, 所述稳压支路包括一只稳压二极管。  3. The LED lamp assembly of claim 1, wherein the LED branch comprises at least two LEDs connected in series with each other, and the voltage stabilizing branch comprises a Zener diode.
4、根据权利要求 1所述的 LED灯组件， 其特征在于， 所述 LED支路包括 相互串联的至少两只 LED, 所述稳压支路包括相互串联的至少两只稳压二极 管。  The LED lamp assembly according to claim 1, wherein the LED branch comprises at least two LEDs connected in series with each other, and the voltage stabilizing branch comprises at least two voltage stabilizing diodes connected in series with each other.
5、 根据权利要求 2至 4中任一项所述的 LED灯组件， 其特征在于， 所述 LED支路中串联有一只保险丝或保险电阻或限流电阻。  The LED lamp assembly according to any one of claims 2 to 4, wherein a fuse or a fuse or a current limiting resistor is connected in series in the LED branch.
6、 根据权利要求 5所述的 LED灯组件， 其特征在于， 所述 LED支路和稳 压支路的并联电路并联有一只电容或一只压敏电阻或既并联有一只电容又并 联有一只压敏电阻。  The LED lamp assembly according to claim 5, wherein the LED branch and the parallel circuit of the voltage stabilizing branch have a capacitor or a varisor connected in parallel or a capacitor connected in parallel and one in parallel. Varistor.
7、一种 LED灯组件串联电路，其特征在于，包括相互串联的至少两个 LED 灯组件； 其中， 所述 LED灯组件包括 LED支路和稳压支路， 所述 LED支路和 稳压支路相互并联构成并联电路。  A LED lamp assembly series circuit, comprising: at least two LED lamp assemblies connected in series with each other; wherein the LED lamp assembly comprises an LED branch and a voltage stabilizing branch, the LED branch and voltage regulator The branches are connected in parallel to each other to form a parallel circuit.
8、 根据权利要求 7所述的 LED灯组件串联电路， 其特征在于， 所述 LED 支路包括一只 LED, 所述稳压支路包括一只稳压二极管。  8. The LED lamp assembly series circuit according to claim 7, wherein the LED branch comprises an LED, and the voltage stabilizing branch comprises a Zener diode.
9、 根据权利要求 7所述的 LED灯组件串联电路， 其特征在于， 所述 LED 支路包括相互串联的至少两只 LED, 所述稳压支路包括一只稳压二极管。  9. The LED lamp assembly series circuit according to claim 7, wherein the LED branch comprises at least two LEDs connected in series with each other, and the voltage stabilizing branch comprises a Zener diode.
10、根据权利要求 7所述的 LED灯组件串联电路， 其特征在于， 所述 LED 支路包括相互串联的至少两只 LED,所述稳压支路包括相互串联的至少两只稳 压二极管。  The LED lamp assembly series circuit according to claim 7, wherein the LED branch comprises at least two LEDs connected in series with each other, and the voltage stabilizing branch comprises at least two voltage stabilizing diodes connected in series with each other.
11、 根据权利要求 8至 10中任一项所述的 LED灯组件串联电路， 其特征 在于， 所述 LED支路中串联有一只保险丝或保险电阻或限流电阻。 11. The LED lamp assembly series circuit according to any one of claims 8 to 10, characterized in that In the LED branch, a fuse or a fuse or a current limiting resistor is connected in series.
12、根据权利要求 11所述的 LED灯组件串联电路，其特征在于，所述 LED 支路和稳压支路的并联电路并联有一只电容或一只压敏电阻或既并联有一只 电容又并联有一只压敏电阻。  The LED lamp assembly series circuit according to claim 11, wherein a parallel circuit of the LED branch and the voltage stabilizing branch has a capacitor or a varisor connected in parallel or a capacitor connected in parallel. There is a varistor.
13、 一种 LED照明装置， 其特征在于， 包括相互串联的至少两个 LED灯 组件及其驱动电路， 其中， 所述 LED灯组件包括 LED支路和稳压支路， 所述 LED支路和稳压支路相互并联构成并联电路。  13. An LED lighting device, comprising: at least two LED lamp assemblies and driving circuits thereof connected in series, wherein the LED lamp assembly comprises an LED branch and a voltage stabilizing branch, the LED branch and The voltage stabilizing branches are connected in parallel to each other to form a parallel circuit.
14、 根据权利要求 11所述的 LED照明装置， 其特征在于， 所述 LED支路 包括一只 LED， 所述稳压支路包括一只稳压二极管。  14. The LED lighting device of claim 11, wherein the LED branch comprises an LED, and the voltage stabilizing branch comprises a Zener diode.
15、 根据权利要求 11所述的 LED照明装置， 其特征在于， 所述 LED支路 包括相互串联的至少两只 LED, 所述稳压支路包括一只稳压二极管。  15. The LED lighting device of claim 11, wherein the LED branch comprises at least two LEDs connected in series with each other, and the voltage stabilizing branch comprises a Zener diode.
16、 根据权利要求 11所述的 LED照明装置， 其特征在于， 所述 LED支路 包括相互串联的至少两只 LED,所述稳压支路包括相互串联的至少两只稳压二 极管。  The LED lighting device according to claim 11, wherein the LED branch comprises at least two LEDs connected in series with each other, and the voltage stabilizing branch comprises at least two voltage stabilizing diodes connected in series with each other.
17、 根据权利要求 14至 16中任一项所述的 LED灯组件串联电路， 其特 征在于， 所述 LED支路中串联有一只保险丝或保险电阻或限流电阻。  The LED lamp assembly series circuit according to any one of claims 14 to 16, wherein a fuse or a fuse or a current limiting resistor is connected in series in the LED branch.
18、根据权利要求 17所述的 LED灯组件串联电路，其特征在于，所述 LED 支路和稳压支路的并联电路并联有一只电容或一只压敏电阻或既并联有一只 电容又并联有一只压敏电阻。  The LED lamp assembly series circuit according to claim 17, wherein a parallel circuit of the LED branch and the voltage stabilizing branch has a capacitor or a varisor connected in parallel or a capacitor connected in parallel. There is a varistor.
19、 根据权利要求 13至 16中任一项所述的 LED照明装置， 其特征在于， 所述相互串联的至少两个 LED灯组件构成的串联电路中还串联有一只限流电 阻； 所述驱动电路包括与交流市电接入端相连的变压电路和桥式整流电路以 及并联在所述桥式整流电路输出端的滤波电路； 其中所述变压电路由电容和 电阻并联组成、 所述桥式整流电路由四只整流二极管组成、 所述滤波电路由 电容组成。  The LED lighting device according to any one of claims 13 to 16, wherein a series current circuit composed of at least two LED lamp assemblies connected in series is further connected with a current limiting resistor in series; The circuit includes a transformer circuit and a bridge rectifier circuit connected to the AC mains access terminal and a filter circuit connected in parallel at the output end of the bridge rectifier circuit; wherein the variable piezoelectric routing capacitor and the resistor are connected in parallel, the bridge The rectifier circuit is composed of four rectifier diodes, and the filter circuit is composed of capacitors.
PCT/CN2008/000204 2007-02-17 2008-01-29 Led lamp assembly, series circuit of led lamp assembly and led lighting device WO2008101383A1 (en)

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