WO2012174765A1 - Constant current controller for led lamp - Google Patents

Constant current controller for led lamp Download PDF

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Publication number
WO2012174765A1
WO2012174765A1 PCT/CN2011/077455 CN2011077455W WO2012174765A1 WO 2012174765 A1 WO2012174765 A1 WO 2012174765A1 CN 2011077455 W CN2011077455 W CN 2011077455W WO 2012174765 A1 WO2012174765 A1 WO 2012174765A1
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WO
WIPO (PCT)
Prior art keywords
terminal
constant current
resistor
led lamp
source chip
Prior art date
Application number
PCT/CN2011/077455
Other languages
French (fr)
Chinese (zh)
Inventor
赖荣模
Original Assignee
Lai Jung Mo
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Filing date
Publication date
Application filed by Lai Jung Mo filed Critical Lai Jung Mo
Publication of WO2012174765A1 publication Critical patent/WO2012174765A1/en

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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]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter 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
    • H05B45/345—Current stabilisation; Maintaining constant current
    • 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

  • the utility model relates to a constant current controller, in particular to a constant current controller for an LED lamp.
  • the present application is based on a Chinese Utility Model Patent Application No. 201120210888.3, filed on Jun. 21, 2011, the content of which is hereby incorporated by reference.
  • the LED lamp is generally designed as an assembly structure, and any part of the LED lamp can be disassembled and installed for easy replacement and maintenance.
  • the LED lamp is equipped with a constant voltage device when it is used.
  • the constant voltage device converts the residential 220 volt AC power into a voltage direct current.
  • the voltage required for the normal illumination of an LED lamp is a fixed value, so the circuit where the voltage regulator is located is In the middle, the number of LED lamp particles in series is fixed; when the aluminum substrate with the LED lamp particles connected in series needs to be replaced, it is necessary to find an aluminum substrate with LED lamp particles connected in series, and the number of LED lamp particles in series is the same; The substrate is inconvenient to replace. At the same time, when it is necessary to increase the power of the LED lamp, the number of LED lamp particles can not be increased by replacing the aluminum substrate, and the LED lamp and the matching constant voltage device and the expansion performance of the LED lamp need to be replaced.
  • the utility model solves the deficiencies of the prior art, and provides a constant current controller for an LED lamp, which can facilitate the replacement of the aluminum substrate of the LED lamp and improve the expandability of the LED lamp.
  • the technical scheme adopted by the utility model is:
  • a constant current controller for an LED lamp comprising a constant current circuit and a casing, the constant current circuit comprising a constant current source chip and three terminals, wherein the three terminals are a first terminal and a second terminal respectively The terminal and the third terminal;
  • the constant current source chip model is PT6903, the RT connection port of the constant current source chip is connected with the resistor R1 - terminal, the other end of the resistor R1 is connected with the second terminal, and the CS wiring port of the constant current source chip Connected to one end of the resistor RA, the other end of the resistor RA is connected to the second terminal, and the GND terminal of the constant current source chip is connected to the second terminal;
  • the SW wiring port of the constant current source chip is connected to one end of the inductor L1, the inductor The other end of L1 is connected to the third terminal, the SW connection port is connected to the anode of the diode D5, and the cathode of the diode D5 is connected to the first terminal;
  • the resistor RA is formed by connecting a resistor R2, a resistor R3 and a resistor R4 in parallel.
  • the housing has a cylindrical shape, and three terminals are disposed at one end of the housing.
  • the terminal is T-shaped.
  • the three posts are triangular in distribution.
  • a constant current controller for an LED lamp comprising a constant current circuit and a casing, the constant current circuit comprising a constant current source chip and three terminals, three terminals respectively The first terminal, the second terminal and the third terminal;
  • the constant current source chip type is PT6903, the RT connection port of the constant current source chip is connected with the resistor R1 - terminal, and the other end of the resistor R1 is connected with the second terminal
  • the CS connection port of the constant current source chip is connected to one end of the resistor RA, the other end of the resistor RA is connected to the second terminal, and the GND connection port of the constant current source chip is connected to the second terminal;
  • the SW connection of the constant current source chip The port is connected to one end of the inductor L1, the inductor L1 The other end is connected to the third terminal, the SW connection port is connected to the anode of the diode D5, and the cathode of the diode D5 is connected to the first terminal;
  • the constant current circuit is disposed in the casing, and three terminals are disposed outside the casing, and the three terminals are electrically connected to the first terminal, the second terminal and the third terminal respectively. .
  • the constant current controller By designing the constant current controller, the current flowing through the LED lamp particles is kept constant, so that the number of LED lamp particles connected in series on the aluminum substrate can be increased without affecting the normal operation of other LED lamp particles, and it is convenient to replace and install different numbers of LEDs.
  • 1 is a schematic view of a constant current circuit structure of the present invention.
  • Figure 2 is a schematic view of the structure of the present invention.
  • IC represents a constant current source chip.
  • a constant current controller for an LED lamp includes a constant current circuit and a casing 1.
  • the constant current circuit includes a constant current source chip IC and three terminals, three terminals. The first terminal A, the second terminal B and the third terminal C are respectively;
  • the constant current source chip IC model is PT6903, the RT wiring port of the constant current source chip IC is connected to one end of the resistor R1, and the other end of the resistor R1 Connected to the second terminal B, the CS wiring port of the constant current source chip IC is connected to one end of the resistor RA, the other end of the resistor RA is connected to the second terminal B, and the GND wiring port and the second wiring of the constant current source chip IC End B connection;
  • the SW connection port of the constant current source chip IC is connected to one end of the inductor L1 Connect, the other end of the inductor LI is connected to the third terminal C, the SW wiring port is connected to the anode of the diode D5, the cath
  • the resistor RA is formed by connecting a resistor R2, a resistor R3 and a resistor R4 in parallel.
  • the first terminal A is electrically connected to the positive pole of the low voltage DC power source
  • the second terminal B is electrically connected to the negative pole of the low voltage DC power source
  • the third terminal C and the first terminal A are the output terminals.
  • the constant current controller is connected to the circuit of the LED lamp so that the current flowing through the LED lamp particles mounted on the aluminum substrate is constant current, so when replacing the aluminum substrate of the LED lamp, there is no need to consider the LED mounted on the aluminum substrate.
  • the number of light particles At the same time, the number of LED lamp particles can be increased on the used aluminum substrate to increase the power of the LED lamp and improve its expandability.
  • the housing 1 has a cylindrical shape, three terminals are disposed at one end of the housing 1, and the three terminals are triangularly distributed.
  • the lamp holder of a general fluorescent lamp is provided with a mounting hole for mounting a cylindrical starter, and the constant current controller is designed into a cylindrical shape, so that the constant current controller can be installed by using the lamp holder of the fluorescent lamp without additionally designing a mounting position. .
  • terminal 2 is T-shaped.
  • the terminal 2 is designed in a T-shape for easy wiring of the terminal 2.
  • the invention comprises a constant current circuit and a casing, the constant current circuit comprises a constant current source chip and three terminals, and the three terminals are a first terminal, a second terminal and a third terminal respectively;
  • the constant current source chip model For the PT6903 the RT wiring port of the constant current source chip is connected to the resistor R1 - terminal, the other end of the resistor R1 is connected to the second terminal, and the CS wiring port of the constant current source chip is connected to one end of the resistor RA, and the other end of the resistor RA Connected to the second terminal, the GND terminal of the constant current source chip is connected to the second terminal;
  • the SW connection port of the constant current source chip is connected to one end of the inductor L1, and the other end of the inductor L1 is connected to the third terminal, SW
  • the wiring port is connected to the anode of the diode D5, and the cathode of the diode D5 is connected to the first terminal;
  • the constant current circuit is disposed in the casing, and three terminals are disposed outside the casing, and the three terminals are electrically connected to the first terminal, the second terminal, and the third terminal, respectively.
  • the constant current controller By designing the constant current controller, the current flowing through the LED lamp particles is kept constant, so that the number of LED lamp particles connected in series on the aluminum substrate can be increased without affecting the normal operation of other LED lamp particles, and it is convenient to replace and install different numbers of LEDs.
  • the invention can be mass-produced and has a good market prospect.

Landscapes

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

Abstract

Disclosed is a constant current controller for an LED lamp, comprising a constant current circuit and a casing. The constant current circuit comprises a constant current source chip, a first wiring terminal, a second wiring terminal and a third wiring terminal. The constant current source chip is of the PT6903 model. An RT wiring port of the chip is serially connected with a resistor R1 and then is connected with the second wiring terminal, a CS wiring port of the chip is serially connected with a resistor RA and then is connected with the second wiring terminal, a GND wiring port of the chip is connected with the second wiring terminal, an SW wiring port of the chip is serially connected with an inductor L1 and then is connected with the third wiring terminal, the SW wiring port is serially connected with a diode D5 and then is connected with the first wiring terminal, and a VIN wiring port of the chip is connected with the first wiring terminal. A capacitor C1 is connected between the first wiring terminal and the second wiring terminal. The constant current circuit is mounted in the casing. Three binding posts are disposed outside the casing and are electrically connected with the first wiring terminal, the second wiring terminal and the third terminal, respectively.

Description

说 明 书  Description
一种用于 LED灯的恒流控制器  Constant current controller for LED lamps
技术领域 Technical field
本实用新型涉及一种恒流控制器， 具体的说， 涉及一种用于 LED灯的 恒流控制器。 本申请是基于申请日 2011 年 6 月 21 日的、 申请号为 201120210888.3 的中国实用新型专利申请， 上述专利申请的内容作为参考 引入本文。  The utility model relates to a constant current controller, in particular to a constant current controller for an LED lamp. The present application is based on a Chinese Utility Model Patent Application No. 201120210888.3, filed on Jun. 21, 2011, the content of which is hereby incorporated by reference.
背景技术 Background technique
随着社会的发展， 能源越发显得缺乏， 因此人们对电器的要求已不在 仅仅要求其质量， 还要求其节能环保。低能耗的 LED灯作为一种冷光源电 器逐渐走进人们的生活中， 并使用在各种场合。为了增强 LED灯的维修方 便灵活， 一般将 LED灯设计成组装结构， LED灯的任一零件都可以拆卸 安装， 便于更换和维修。 LED灯在使用的时候都会配备一个恒压器， 恒压 器将居民用电 220伏的交流电转化成电压直流电，一个 LED灯粒正常发光 所需要的电压是定值， 因此恒压器所在的电路中， 串联的 LED灯粒数目处 于定值； 当安装有串联的 LED灯粒的铝基板需要更换时， 需要找安装有串 联的 LED灯粒的铝基板， 且串联的 LED灯粒数目相同； 铝基板不方便更 换， 同时当需要增加 LED灯的功率，不能通过更换铝基板来增加安装 LED 灯粒的数目， 需要更换 LED灯及与之匹配的恒压器， LED灯的扩展性能 。  With the development of society, energy is becoming more and more scarce, so people's requirements for electrical appliances are no longer just asking for their quality, but also requiring energy conservation and environmental protection. Low-energy LED lamps are gradually entering people's lives as a kind of cold light source and used in various occasions. In order to enhance the flexibility of LED lamp maintenance, the LED lamp is generally designed as an assembly structure, and any part of the LED lamp can be disassembled and installed for easy replacement and maintenance. The LED lamp is equipped with a constant voltage device when it is used. The constant voltage device converts the residential 220 volt AC power into a voltage direct current. The voltage required for the normal illumination of an LED lamp is a fixed value, so the circuit where the voltage regulator is located is In the middle, the number of LED lamp particles in series is fixed; when the aluminum substrate with the LED lamp particles connected in series needs to be replaced, it is necessary to find an aluminum substrate with LED lamp particles connected in series, and the number of LED lamp particles in series is the same; The substrate is inconvenient to replace. At the same time, when it is necessary to increase the power of the LED lamp, the number of LED lamp particles can not be increased by replacing the aluminum substrate, and the LED lamp and the matching constant voltage device and the expansion performance of the LED lamp need to be replaced.
发明内容 Summary of the invention
本实用新型解决了现有技术的不足，提供了一种用于 LED灯的恒流控 制器， 该恒流控制器可以方便 LED灯的铝基板更换， 提高 LED灯的扩展 性。 本实用新型采用的技术方案为： The utility model solves the deficiencies of the prior art, and provides a constant current controller for an LED lamp, which can facilitate the replacement of the aluminum substrate of the LED lamp and improve the expandability of the LED lamp. The technical scheme adopted by the utility model is:
一种用于 LED灯的恒流控制器， 包括恒流电路和壳体， 所述恒流电路 包括恒流源芯片和三个接线端， 三个接线端分别为第一接线端、 第二接线 端和第三接线端； 恒流源芯片型号为 PT6903, 恒流源芯片的 RT接线端口 与电阻 R1—端连接， 电阻 R1的另一端与第二接线端连接， 恒流源芯片的 CS接线端口与电阻 RA的一端连接，电阻 RA的另一端与第二接线端连接， 恒流源芯片的 GND接线端口与第二接线端连接； 恒流源芯片的 SW接线 端口与电感 L1的一端连接， 电感 L1的另一端与第三接线端连接， SW接 线端口与二极管 D5的阳极连接， 二极管 D5的阴极与第一接线端连接； 恒 流源芯片的 VIN接线端口与第一接线端连接， 第一接线端与第二接线端之 间连接有电容 C1 , 恒流电路设置于壳体内， 壳体外设有三个接线柱， 三个 接线柱分别与第一接线端、 第二接线端、 第三接线端电连接。  A constant current controller for an LED lamp, comprising a constant current circuit and a casing, the constant current circuit comprising a constant current source chip and three terminals, wherein the three terminals are a first terminal and a second terminal respectively The terminal and the third terminal; the constant current source chip model is PT6903, the RT connection port of the constant current source chip is connected with the resistor R1 - terminal, the other end of the resistor R1 is connected with the second terminal, and the CS wiring port of the constant current source chip Connected to one end of the resistor RA, the other end of the resistor RA is connected to the second terminal, and the GND terminal of the constant current source chip is connected to the second terminal; the SW wiring port of the constant current source chip is connected to one end of the inductor L1, the inductor The other end of L1 is connected to the third terminal, the SW connection port is connected to the anode of the diode D5, and the cathode of the diode D5 is connected to the first terminal; the VIN connection port of the constant current source chip is connected to the first terminal, the first connection A capacitor C1 is connected between the terminal and the second terminal, and the constant current circuit is disposed in the casing, and three terminals are arranged outside the casing, and the three terminals are respectively connected to the first terminal and the second terminal. The third terminal is electrically connected.
作为优选， 电阻 RA由电阻 R2、 电阻 R3和电阻 R4并联而成。  Preferably, the resistor RA is formed by connecting a resistor R2, a resistor R3 and a resistor R4 in parallel.
作为优选， 所述壳体呈圆柱形， 三个接线柱设置在壳体一端。  Preferably, the housing has a cylindrical shape, and three terminals are disposed at one end of the housing.
作为优选， 所述接线柱呈 T型。  Preferably, the terminal is T-shaped.
作为优选， 三个接线柱呈三角形分布。  Preferably, the three posts are triangular in distribution.
本实用新型取得的有益效果为： 一种用于 LED灯的恒流控制器， 包括 恒流电路和壳体， 所述恒流电路包括恒流源芯片和三个接线端， 三个接线 端分别为第一接线端、 第二接线端和第三接线端； 恒流源芯片型号为 PT6903 , 恒流源芯片的 RT接线端口与电阻 R1—端连接， 电阻 R1的另一 端与第二接线端连接， 恒流源芯片的 CS接线端口与电阻 RA的一端连接， 电阻 RA的另一端与第二接线端连接，恒流源芯片的 GND接线端口与第二 接线端连接； 恒流源芯片的 SW接线端口与电感 L1的一端连接， 电感 L1 的另一端与第三接线端连接， SW接线端口与二极管 D5的阳极连接， 二极 管 D5的阴极与第一接线端连接； 恒流源芯片的 VIN接线端口与第一接线 端连接， 第一接线端与第二接线端之间连接有电容 C1 , 恒流电路设置于壳 体内， 壳体外设有三个接线柱， 三个接线柱分别与第一接线端、 第二接线 端、 第三接线端电连接。通过设计恒流控制器， 使得流经 LED灯粒的电流 保持不变，因此可以增加铝基板上串联的 LED灯粒数目而不影响其他 LED 灯粒的正常工作， 方便更换安装有不同数目的 LED灯粒的铝基板， 以及在 铝基板上扩展 LED灯粒的数量。 The beneficial effects obtained by the utility model are as follows: A constant current controller for an LED lamp, comprising a constant current circuit and a casing, the constant current circuit comprising a constant current source chip and three terminals, three terminals respectively The first terminal, the second terminal and the third terminal; the constant current source chip type is PT6903, the RT connection port of the constant current source chip is connected with the resistor R1 - terminal, and the other end of the resistor R1 is connected with the second terminal The CS connection port of the constant current source chip is connected to one end of the resistor RA, the other end of the resistor RA is connected to the second terminal, and the GND connection port of the constant current source chip is connected to the second terminal; the SW connection of the constant current source chip The port is connected to one end of the inductor L1, the inductor L1 The other end is connected to the third terminal, the SW connection port is connected to the anode of the diode D5, and the cathode of the diode D5 is connected to the first terminal; the VIN connection port of the constant current source chip is connected to the first terminal, the first terminal A capacitor C1 is connected between the second terminal and the second terminal. The constant current circuit is disposed in the casing, and three terminals are disposed outside the casing, and the three terminals are electrically connected to the first terminal, the second terminal and the third terminal respectively. . By designing the constant current controller, the current flowing through the LED lamp particles is kept constant, so that the number of LED lamp particles connected in series on the aluminum substrate can be increased without affecting the normal operation of other LED lamp particles, and it is convenient to replace and install different numbers of LEDs. The aluminum substrate of the lamp pellets, and the number of LED lamp pellets that are expanded on the aluminum substrate.
附图说明 DRAWINGS
图 1为本实用新型的恒流电路构示意图。  1 is a schematic view of a constant current circuit structure of the present invention.
图 2为本实用新型的结构示意图。  Figure 2 is a schematic view of the structure of the present invention.
附图标记为：  The reference numerals are:
1一一壳体 2——接线柱 A B C依次分别为第一接 线端、 第二接线端、 第三接线端； IC表示恒流源芯片。  1 - 1 housing 2 - terminal A B C are respectively the first terminal, the second terminal and the third terminal; IC represents a constant current source chip.
具体实施方式 detailed description
下面结合附图和具体实施方式对本实用新型做进一步的说明。  The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
如图 1~2所示，一种用于 LED灯的恒流控制器， 包括恒流电路和壳体 1， 所述恒流电路包括恒流源芯片 IC和三个接线端， 三个接线端分别为第 一接线端 A、第二接线端 B和第三接线端 C;恒流源芯片 IC型号为 PT6903, 恒流源芯片 IC的 RT接线端口与电阻 R1的一端连接，电阻 R1的另一端与 第二接线端 B连接，恒流源芯片 IC的 CS接线端口与电阻 RA的一端连接， 电阻 RA的另一端与第二接线端 B连接， 恒流源芯片 IC的 GND接线端口 与第二接线端 B连接； 恒流源芯片 IC的 SW接线端口与电感 L1的一端连 接， 电感 LI的另一端与第三接线端 C连接， SW接线端口与二极管 D5的 阳极连接， 二极管 D5的阴极与第一接线端 A连接， 恒流源芯片 IC的 VIN 接线端口与第一接线端 A连接，第一接线端 A与第二接线端 B之间连接有 电容 C1 , 恒流电路设置于壳体 1内， 壳体 1外设有三个接线柱 2， 三个接 线柱 2分别与第一接线端 A、 第二接线端 B、 第三接线端 C电连接。 As shown in FIG. 1 to FIG. 2, a constant current controller for an LED lamp includes a constant current circuit and a casing 1. The constant current circuit includes a constant current source chip IC and three terminals, three terminals. The first terminal A, the second terminal B and the third terminal C are respectively; the constant current source chip IC model is PT6903, the RT wiring port of the constant current source chip IC is connected to one end of the resistor R1, and the other end of the resistor R1 Connected to the second terminal B, the CS wiring port of the constant current source chip IC is connected to one end of the resistor RA, the other end of the resistor RA is connected to the second terminal B, and the GND wiring port and the second wiring of the constant current source chip IC End B connection; the SW connection port of the constant current source chip IC is connected to one end of the inductor L1 Connect, the other end of the inductor LI is connected to the third terminal C, the SW wiring port is connected to the anode of the diode D5, the cathode of the diode D5 is connected to the first terminal A, the VIN wiring port of the constant current source chip IC and the first wiring The terminal A is connected, and a capacitor C1 is connected between the first terminal A and the second terminal B. The constant current circuit is disposed in the casing 1. The casing 1 is provided with three terminals 2, and the three terminals 2 are respectively The first terminal A, the second terminal B, and the third terminal C are electrically connected.
其中， 电阻 RA由电阻 R2、 电阻 R3和电阻 R4并联而成。  The resistor RA is formed by connecting a resistor R2, a resistor R3 and a resistor R4 in parallel.
使用时， 将第一接线端 A与低压直流电源的正极电连接， 第二接线端 B与低压直流电源的负极电连接；第三接线端 C、第一接线端 A为输出端。 将恒流控制器连接于 LED灯的电路中， 使得流经安装在铝基板上的 LED 灯粒的电流为恒流， 因此在更换 LED灯的铝基板时， 无需考虑安装在铝基 板上的 LED灯粒的数目。 同时可以在使用的铝基板上增加 LED灯粒的数 目， 增大 LED灯的功率， 提高其扩展性。  In use, the first terminal A is electrically connected to the positive pole of the low voltage DC power source, the second terminal B is electrically connected to the negative pole of the low voltage DC power source; the third terminal C and the first terminal A are the output terminals. The constant current controller is connected to the circuit of the LED lamp so that the current flowing through the LED lamp particles mounted on the aluminum substrate is constant current, so when replacing the aluminum substrate of the LED lamp, there is no need to consider the LED mounted on the aluminum substrate. The number of light particles. At the same time, the number of LED lamp particles can be increased on the used aluminum substrate to increase the power of the LED lamp and improve its expandability.
进一步的， 所述壳体 1呈圆柱形， 三个接线柱设置在壳体 1一端， 且 三个接线柱呈三角形分布。  Further, the housing 1 has a cylindrical shape, three terminals are disposed at one end of the housing 1, and the three terminals are triangularly distributed.
一般的日光灯的灯架上均设有用于安装圆柱形启辉器的安装孔， 将恒 流控制器设计成圆柱形， 因此可以利用日光灯的灯架来安装恒流控制器而 无需另外设计安装位。  The lamp holder of a general fluorescent lamp is provided with a mounting hole for mounting a cylindrical starter, and the constant current controller is designed into a cylindrical shape, so that the constant current controller can be installed by using the lamp holder of the fluorescent lamp without additionally designing a mounting position. .
进一步的， 所述接线柱 2呈 T型。  Further, the terminal 2 is T-shaped.
将接线柱 2设计呈 T型， 便于接线柱 2接线。  The terminal 2 is designed in a T-shape for easy wiring of the terminal 2.
最后应当说明的是， 以上实施例仅用以说明本实用新型的技术方案， 而非对本实用新型保护范围的限制， 尽管参照较佳实施例对本实用新型作 了详细地说明， 本领域的普通技术人员应当理解， 可以对本实用新型的技 术方案进行修改或者等同替换， 而不脱离本实用新型技术方案的实质和范 围。 工业应用性 It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of the present invention. Although the present invention is described in detail with reference to the preferred embodiments, It should be understood that the technical solutions of the present invention may be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention. Wai. Industrial applicability
本发明包括恒流电路和壳体，恒流电路包括恒流源芯片和三个接线端， 三个接线端分别为第一接线端、 第二接线端和第三接线端； 恒流源芯片型 号为 PT6903 , 恒流源芯片的 RT接线端口与电阻 R1—端连接， 电阻 R1的 另一端与第二接线端连接，恒流源芯片的 CS接线端口与电阻 RA的一端连 接， 电阻 RA的另一端与第二接线端连接，恒流源芯片的 GND接线端口与 第二接线端连接；恒流源芯片的 SW接线端口与电感 L1的一端连接， 电感 L1的另一端与第三接线端连接， SW接线端口与二极管 D5的阳极连接， 二极管 D5的阴极与第一接线端连接； 恒流源芯片的 VIN接线端口与第一 接线端连接， 第一接线端与第二接线端之间连接有电容 C1 , 恒流电路设置 于壳体内， 壳体外设有三个接线柱， 三个接线柱分别与第一接线端、 第二 接线端、 第三接线端电连接。通过设计恒流控制器， 使得流经 LED灯粒的 电流保持不变，因此可以增加铝基板上串联的 LED灯粒数目而不影响其他 LED灯粒的正常工作， 方便更换安装有不同数目的 LED灯粒的铝基板， 以及在铝基板上扩展 LED灯粒的数量。本发明创造可以批量生产， 具有良 好的市场前景。  The invention comprises a constant current circuit and a casing, the constant current circuit comprises a constant current source chip and three terminals, and the three terminals are a first terminal, a second terminal and a third terminal respectively; the constant current source chip model For the PT6903, the RT wiring port of the constant current source chip is connected to the resistor R1 - terminal, the other end of the resistor R1 is connected to the second terminal, and the CS wiring port of the constant current source chip is connected to one end of the resistor RA, and the other end of the resistor RA Connected to the second terminal, the GND terminal of the constant current source chip is connected to the second terminal; the SW connection port of the constant current source chip is connected to one end of the inductor L1, and the other end of the inductor L1 is connected to the third terminal, SW The wiring port is connected to the anode of the diode D5, and the cathode of the diode D5 is connected to the first terminal; the VIN connection port of the constant current source chip is connected to the first terminal, and the capacitor C1 is connected between the first terminal and the second terminal. The constant current circuit is disposed in the casing, and three terminals are disposed outside the casing, and the three terminals are electrically connected to the first terminal, the second terminal, and the third terminal, respectively. By designing the constant current controller, the current flowing through the LED lamp particles is kept constant, so that the number of LED lamp particles connected in series on the aluminum substrate can be increased without affecting the normal operation of other LED lamp particles, and it is convenient to replace and install different numbers of LEDs. The aluminum substrate of the lamp pellets, and the number of LED lamp pellets that are expanded on the aluminum substrate. The invention can be mass-produced and has a good market prospect.

Claims

1. 一种用于 LED灯的恒流控制器， 包括恒流电路和壳体， 其特征在于： 所述恒流电路包括恒流源芯片和三个接线端，三个接线端分别为第一接 线端、 第二接线端和第三接线端； 恒流源芯片型号为 PT6903, 恒流源 芯片的 RT接线端口与电阻（R1 )—端连接， 电阻（R1 ) 的另一端与第 二接线端连接， 恒流源芯片的 CS接线端口与电阻 （RA) 的一端连接， 电阻（RA)的另一端与第二接线端连接， 恒流源芯片的 GND接线端口 与第二接线端连接； 恒流源芯片的 SW接线端口与电感（L1 )的一端连 接，电感（L1 )的另一端与第三接线端连接， SW接线端口与二极管（D5 ) 的阳极连接， 二极管 （D5 ) 的阴极与第一接线端连接； 恒流源芯片的 VIN接线端口与第一接线端连接，第一接线端与第二接线端之间连接有 电容 （C1 ), 恒流电路设置于壳体内， 壳体外设有三个接线柱， 三个接 线柱分别与第一接线端、 第二接线端、 第三接线端电连接。 A constant current controller for an LED lamp, comprising a constant current circuit and a casing, wherein: the constant current circuit comprises a constant current source chip and three terminals, and the three terminals are respectively first Terminal, second terminal and third terminal; constant current source chip model is PT6903, RT current port of constant current source chip is connected with resistor (R1)-end, the other end of resistor (R1) and second terminal Connect, the CS connection port of the constant current source chip is connected to one end of the resistor (RA), the other end of the resistor (RA) is connected to the second terminal, and the GND connection port of the constant current source chip is connected to the second terminal; The SW wiring port of the source chip is connected to one end of the inductor (L1), the other end of the inductor (L1) is connected to the third terminal, the SW wiring port is connected to the anode of the diode (D5), and the cathode of the diode (D5) is first. The terminal is connected; the VIN connection port of the constant current source chip is connected to the first terminal, and a capacitor (C1) is connected between the first terminal and the second terminal, the constant current circuit is disposed in the casing, and three outside the casing are provided. Terminal post, three Binding post, respectively, a second terminal, the third terminal is electrically connected to the first terminal.
2. 根据权利要求 1所述的一种用于 LED灯的恒流控制器， 其特征在于： 电阻 （RA) 由电阻 （R2)、 电阻 （R3 ) 和电阻 （R4) 并联而成。  2. A constant current controller for an LED lamp according to claim 1, wherein the resistor (RA) is formed by connecting a resistor (R2), a resistor (R3) and a resistor (R4) in parallel.
3. 根据权利要求 1所述的一种用于 LED灯的恒流控制器， 其特征在于： 所述壳体呈圆柱形， 三个接线柱设置在壳体一端。  3. The constant current controller for an LED lamp according to claim 1, wherein: the housing has a cylindrical shape, and three terminals are disposed at one end of the housing.
4. 根据权利要求 1所述的一种用于 LED灯的恒流控制器， 其特征在于： 所述接线柱呈 T型。  4. The constant current controller for an LED lamp according to claim 1, wherein: the terminal is T-shaped.
5. 根据权利要求 3所述的一种用于 LED灯的恒流控制器， 其特征在于： 所述三个接线柱呈三角形分布。  5. The constant current controller for an LED lamp according to claim 3, wherein: the three terminals are distributed in a triangle shape.
PCT/CN2011/077455 2011-06-21 2011-07-21 Constant current controller for led lamp WO2012174765A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201123157Y (en) * 2007-11-09 2008-09-24 蔡昌甫 Rectifier module group suitable for LED lamp string
CN201386941Y (en) * 2009-04-20 2010-01-20 淮南市启迪电子有限公司 Mining anti-explosion LED fluorescent light
CN201795360U (en) * 2010-08-26 2011-04-13 常熟市保得利计算机科技有限公司 LED fluorescent lamp

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201123157Y (en) * 2007-11-09 2008-09-24 蔡昌甫 Rectifier module group suitable for LED lamp string
CN201386941Y (en) * 2009-04-20 2010-01-20 淮南市启迪电子有限公司 Mining anti-explosion LED fluorescent light
CN201795360U (en) * 2010-08-26 2011-04-13 常熟市保得利计算机科技有限公司 LED fluorescent lamp

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