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WO2008101383A1 - Ensemble de lampe à diodes électroluminescentes, circuit en série d'ensemble de lampe à diodes électroluminescentes et dispositif d'éclairage à diodes électroluminescentes - Google Patents

Ensemble de lampe à diodes électroluminescentes, circuit en série d'ensemble de lampe à diodes électroluminescentes et dispositif d'éclairage à diodes électroluminescentes 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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WO
WIPO (PCT)
Prior art keywords
led
series
branch
led lamp
lamp assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2008/000204
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English (en)
Chinese (zh)
Inventor
Xiangbai Xiao
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHENZHEN UNIBERO TECHNOLOGY Co Ltd
Original Assignee
SHENZHEN UNIBERO TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHENZHEN UNIBERO TECHNOLOGY Co Ltd filed Critical SHENZHEN UNIBERO TECHNOLOGY Co Ltd
Publication of WO2008101383A1 publication Critical patent/WO2008101383A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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

La présente invention concerne un ensemble de lampe à diodes électroluminescentes, un circuit en série d'ensemble de lampe à diodes électroluminescentes et un dispositif d'éclairage à diodes électroluminescentes. L'ensemble de lampe à diodes électroluminescentes comporte une branche de diodes électroluminescentes et une branche de stabilisation de la tension en parallèle, la branche de diodes électroluminescentes comprenant une diode électroluminescente (VL) ou au moins deux diodes électroluminescentes (VL) en série, éventuellement un fusible (FU); une résistance de sécurité ou une résistance de limitation de courant est également connectée en série à la branche de diodes électroluminescentes. La branche de stabilisation de la tension comporte une diode de stabilisation de tension (VS) ou au moins deux diodes de stabilisation de tension (VS) en série.
PCT/CN2008/000204 2007-02-17 2008-01-29 Ensemble de lampe à diodes électroluminescentes, circuit en série d'ensemble de lampe à diodes électroluminescentes et dispositif d'éclairage à diodes électroluminescentes Ceased WO2008101383A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200710084881.X 2007-02-17
CNB200710084881XA CN100525562C (zh) 2007-02-17 2007-02-17 Led灯组件电路单元与复合串联型led灯电路

Publications (1)

Publication Number Publication Date
WO2008101383A1 true WO2008101383A1 (fr) 2008-08-28

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Application Number Title Priority Date Filing Date
PCT/CN2008/000204 Ceased WO2008101383A1 (fr) 2007-02-17 2008-01-29 Ensemble de lampe à diodes électroluminescentes, circuit en série d'ensemble de lampe à diodes électroluminescentes et dispositif d'éclairage à diodes électroluminescentes

Country Status (2)

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CN (1) CN100525562C (fr)
WO (1) WO2008101383A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120086388A1 (en) * 2010-10-08 2012-04-12 Hon Hai Precision Industry Co., Ltd. Charging status display circuit and electronic device using the same
JP2012169625A (ja) * 2011-02-11 2012-09-06 Tai-Her Yang Ｌｅｄ装置
JP2012178559A (ja) * 2011-02-11 2012-09-13 Tai-Her Yang Ｌｅｄ装置
EP4601416A1 (fr) * 2024-02-09 2025-08-13 Mcsmbs Dispositif d'éclairage pour un local exposé à un rayonnement ionisant

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100525562C (zh) * 2007-02-17 2009-08-05 深圳市纯英新时代科技有限公司 Led灯组件电路单元与复合串联型led灯电路
CN102644877A (zh) * 2012-04-26 2012-08-22 萧广万 交流led光源
CN106704888A (zh) * 2017-03-17 2017-05-24 南京养元素电子科技有限公司 一种高可靠性的led照明装置
EP3525552B1 (fr) * 2018-02-09 2023-10-11 ZKW Group GmbH Agencement de circuit destiné à l'activation et à la désactivation successive l'une après l'autre d'au moins deux faisceaux lumineux connectés électriquement en parallèle pour un phare de véhicule
CN108317419A (zh) * 2018-05-14 2018-07-24 欧阳掌坤 一种led灯条
CN111224563A (zh) * 2019-12-12 2020-06-02 国网电子商务有限公司 一种具有开路保护功能的降压硅链
JP7440196B2 (ja) * 2022-04-08 2024-02-28 株式会社スリーエス Ｌｅｄ装置

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JP2000098941A (ja) * 1998-09-18 2000-04-07 Matsushita Electric Works Ltd 発光ダイオード複合回路及びそれを用いた照明装置
CN2516806Y (zh) * 2001-11-30 2002-10-16 上海威廉照明电气有限公司 一种带状发光二极管灯
CN2678304Y (zh) * 2004-01-09 2005-02-09 张聪秀 照明装饰节能灯
CN2694696Y (zh) * 2004-04-15 2005-04-20 李道明 新型微功耗高效夜光灯
FR2891106A1 (fr) * 2005-09-20 2007-03-23 Patrick Courteix Methode de connexion et d'alimentation de diodes electroluminescentes pour la realisation de lampes.
CN101018437A (zh) * 2007-02-17 2007-08-15 肖祥柏 Led灯组件电路单元与复合串联型led灯电路

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000098941A (ja) * 1998-09-18 2000-04-07 Matsushita Electric Works Ltd 発光ダイオード複合回路及びそれを用いた照明装置
CN2516806Y (zh) * 2001-11-30 2002-10-16 上海威廉照明电气有限公司 一种带状发光二极管灯
CN2678304Y (zh) * 2004-01-09 2005-02-09 张聪秀 照明装饰节能灯
CN2694696Y (zh) * 2004-04-15 2005-04-20 李道明 新型微功耗高效夜光灯
FR2891106A1 (fr) * 2005-09-20 2007-03-23 Patrick Courteix Methode de connexion et d'alimentation de diodes electroluminescentes pour la realisation de lampes.
CN101018437A (zh) * 2007-02-17 2007-08-15 肖祥柏 Led灯组件电路单元与复合串联型led灯电路

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120086388A1 (en) * 2010-10-08 2012-04-12 Hon Hai Precision Industry Co., Ltd. Charging status display circuit and electronic device using the same
US8633676B2 (en) * 2010-10-08 2014-01-21 Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd Charging status display circuit and electronic device using the same
JP2012169625A (ja) * 2011-02-11 2012-09-06 Tai-Her Yang Ｌｅｄ装置
JP2012178559A (ja) * 2011-02-11 2012-09-13 Tai-Her Yang Ｌｅｄ装置
EP4601416A1 (fr) * 2024-02-09 2025-08-13 Mcsmbs Dispositif d'éclairage pour un local exposé à un rayonnement ionisant
WO2025168758A1 (fr) * 2024-02-09 2025-08-14 Mcsmbs Dispositif d'éclairage pour un local exposé à un rayonnement ionisant

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CN101018437A (zh) 2007-08-15

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