WO2023208008A1 - 一种led驱动电源、冷柜用照明光源及照明装置 - Google Patents

一种led驱动电源、冷柜用照明光源及照明装置 Download PDF

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WO2023208008A1
WO2023208008A1 PCT/CN2023/090717 CN2023090717W WO2023208008A1 WO 2023208008 A1 WO2023208008 A1 WO 2023208008A1 CN 2023090717 W CN2023090717 W CN 2023090717W WO 2023208008 A1 WO2023208008 A1 WO 2023208008A1
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branch
led
resistor
led lamp
power supply
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PCT/CN2023/090717
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English (en)
French (fr)
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华佳伦
熊爱明
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嘉兴山蒲照明电器有限公司
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Publication of WO2023208008A1 publication Critical patent/WO2023208008A1/zh

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00Lighting devices or systems using a string or strip of light sources
    • F21S4/20Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/22Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape
    • F21S4/24Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape of ribbon or tape form, e.g. LED tapes
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20Responsive to malfunctions or to light source life; for protection
    • H05B47/25Circuit arrangements for protecting against overcurrent

Definitions

  • the present application relates to the field of driving power supply technology, and in particular to an LED driving power supply and lighting device.
  • LED driver power supply As a light source, LED is gradually replacing traditional lighting with its advantages of green environmental protection, low carbon and energy saving. As people's awareness of energy saving and environmental protection increases, the application of LED lamps is becoming more and more popular.
  • LED driver power supply as a key component of LED lamps, its performance directly affects the performance and service life of LED lamps.
  • the typical volt-ampere characteristic curve of the LED drive power supply shows a nonlinear exponential function relationship. When the voltage at both ends of the LED light source changes slightly, it will cause a large change in the current flowing through it. At this time, the circuit suddenly increases The power consumption will fall on the LED lamp beads, so a specific LED driver chip is required to ensure its normal operation and thereby take advantage of the LED.
  • the quality of LED drive power directly affects the service life of LED lamps.
  • the driving power IC generates serious heat, and the heat dissipation affects other components in the driving power supply.
  • the IC heating seriously reduces the service life of the IC. Therefore, how to reduce IC power consumption and reduce IC temperature has become increasingly important.
  • Another reason is that the driving power supply has weak surge resistance and is easily damaged by high voltage.
  • this application proposes an LED driving power supply and lighting device.
  • the LED driving power supply has low power consumption when the IC is running and has strong surge resistance.
  • An LED driving power supply characterized in that it includes: a linear driving circuit, the linear driving circuit has an IC module, and the IC module has:
  • the first port is electrically connected to the VCC bus branch
  • the second port is electrically grounded
  • the third port and the fourth port, the third port and the fourth port are used to connect the load circuit
  • the load circuit is configured to include LED lamp bead branches and resistor branches arranged according to rules, and the LED lamp beads
  • the LED branch and the resistor branch are connected in series, that is, the two ends of the branch after the LED lamp bead branch and the resistor branch are connected in series are connected to the third port and the fourth port.
  • the resistor branch includes one, two or more resistors.
  • the VCC bus branch has a first resistor branch, and the first resistor branch includes at least one fuse resistor.
  • the fuse resistor is a chip type.
  • the linear drive circuit has a DC to DC module, and the function of the C to DC module is integrated into the IC module.
  • An embodiment of the present application provides a lighting device, which includes the above-mentioned LED driving power supply.
  • the lighting device further includes a bracket on which an LED filament is arranged.
  • the LED driving power supply provided by this application has the following advantages:
  • Figure 1 is a schematic diagram of the functional topology of an LED driving power supply according to the first embodiment of the present application
  • Figure 1a is a topological diagram of the LED driving power supply of Figure 1;
  • Figure 2 is a schematic diagram of the functional topology of the LED driving power supply according to the second embodiment of the present application.
  • Figure 2a is a topological schematic diagram of the LED driving power supply of Figure 2;
  • Figure 3 is a schematic diagram of the functional topology of the LED driving power supply according to the third embodiment of the present application.
  • Figure 3a is a topological diagram of the LED driving power supply of Figure 3.
  • the “component having some electrical function” there is no particular limitation on the “component having some electrical function” as long as it can transmit and receive electrical signals between the connected components.
  • “Elements with certain electrical effects” may be, for example, electrodes or wirings, switching elements such as transistors, or other functional elements such as resistors, inductors, or capacitors.
  • “Up”, “down”, “left”, “right”, etc. are only used to express relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
  • orientation or positional relationship indicated by the terms “upper”, “lower”, “inner”, “middle”, etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to having a specific orientation, or to be constructed and operated in a specific orientation.
  • Embodiments of the present application provide an LED driving power supply, which includes a linear driving circuit.
  • the linear driving circuit has an equivalent VCC bus branch, and the voltage is divided by series resistors in the VCC bus branch.
  • a fuse resistor can be connected in series in the VCC bus branch. Such a designed fuse resistor can not only activate the voltage division, but also increase the anti-surge capability, thereby providing loop short-circuit protection.
  • an LED driving power supply which includes a linear driving circuit.
  • the linear driving circuit is connected to an LED lamp bead load, and a resistor (such as a series resistor) is configured in the LED lamp bead load to reduce the temperature of the IC, so that The temperature of the negative electrode of the LED lamp bead is reduced, which in turn increases the life of the LED lamp bead.
  • a resistor such as a series resistor
  • connecting resistors in series in the load circuit can reduce the impact of LED lamp bead voltage drop fluctuations. For example, when the LED lamp bead forward current is low, the voltage drop is small, which will cause the input and output voltage difference between the front and rear of the IC to be excessive.
  • a resistor is connected in series to the load circuit for boosting, part of the IC power can be transferred to the resistor to ensure the normal working conditions of the circuit.
  • configuring a resistor in the LED lamp bead load can be described as a resistor mixed between the lamp beads (such as between two lamp beads), which can also reduce the voltage drop on the LED lamp bead.
  • the LED driving power supply includes: an IC module.
  • the IC module has: a first port, which is electrically connected to the VCC bus branch; a second port, which Electrically connected to the ground (GND), the third port and the fourth port.
  • the third port and the fourth port are used to connect the load circuit.
  • the load circuit includes LED lamp bead branches and resistor branches arranged according to rules. The LED lamp bead branch and the resistor branch are connected in series.
  • the resistor may include one, two or more resistors.
  • LED driving power supply includes: AC to DC module, DC to DC module.
  • the function of the DC to DC module is integrated into the IC.
  • the LED lamp bead branch may take the form of LED filament in some situations.
  • the topology diagram is shown in Figure 1A, and the LED lamp bead branch includes a plurality of LED lamp beads.
  • the LED lamp bead branch is connected to one end of the resistor R1, the other end of the resistor R1 is connected to the IC module U1, one end of the capacitor C1 is connected to VCC, and the other end is electrically grounded.
  • Figure 2 is a topological schematic diagram of an LED driving power supply according to the second embodiment of the present application.
  • the difference between the embodiment in Figure 2 and the embodiment in Figure 1 is that the resistor branch is connected in series to the VCC bus branch, and the third port and the fourth port of the IC module are connected to the LED lamp bead load.
  • the topology diagram in one embodiment is shown in Figure 2a.
  • the LED lamp bead branch includes a plurality of LED lamp beads. Both ends of the LED lamp bead branch are connected to the IC module U2, one end of the resistor R2 is connected to VCC, and the other end is electrically grounded through the capacitor C2.
  • FIG. 3 is a topological diagram of an LED driving power supply according to the third embodiment of the present application.
  • the difference between the embodiment in Figure 3 and the embodiment in Figure 1 is that the first resistor branch is configured in the VCC bus branch.
  • the first resistor branch may include one, two or more resistors.
  • Embodiments of the present application provide an LED driving power supply, which includes a linear driving circuit.
  • the linear driving circuit has an equivalent VCC bus branch, and the voltage is divided by series resistors in the VCC bus branch.
  • a fuse resistor can be connected in series in the VCC bus branch.
  • Such a designed fuse resistor can not only activate the voltage division, but also increase the anti-surge capability, thereby providing loop short-circuit protection.
  • the topology diagram in one embodiment is shown in Figure 3a. One end of the LED lamp bead branch is connected to one end of the resistor R4, and the other end is connected to the IC module U3; one end of the resistor R3 is connected to VCC, and the other end is electrically grounded through the capacitor C3.
  • An embodiment of the present application provides a lighting device equipped with the above-mentioned LED driving power supply.
  • the lighting device is equipped with LED lamp beads arranged in a certain regular pattern. When the driving power is running, it is driven in a linear manner to make the LED lamp beads emit light.
  • a resistor is connected in series to the LED load of the lighting device to reduce the temperature of the IC in the LED driving power supply, so that the temperature of the negative terminal of the LED is reduced, thereby increasing the life of the LED.
  • This lighting device can be used in closed-environment applications such as refrigerators. In such situations, the lighting source is equipped with a sealed cover. In this way, the lighting source has poor heat dissipation during operation.
  • This application proposes a lighting source for refrigerators, which is equipped with the above-mentioned driving power supply. When the lighting source is working, it can reduce IC power consumption and IC temperature, thereby improving IC heating and reducing the impact of IC heat dissipation on other components to improve lighting. Light source reliability.
  • the lighting device further includes a bracket on which an LED filament is arranged.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

本申请公开一种LED驱动电源、冷柜用照明光源及照明装置。该LED驱动电源包括线性驱动电路,通过在线性驱动电路的VCC总线中或负载回路中配置电阻来分压来降低IC功耗、减少IC温度,从而减小IC的热耗散对其余元件的影响。进而增加了LED灯珠的寿命。

Description

一种LED驱动电源、冷柜用照明光源及照明装置 技术领域
本申请涉及驱动电源技术领域,尤其涉及一种LED驱动电源及照明装置。
背景技术
LED作为光源,凭借其绿色环保、低碳节能的优点,正在逐步取代传统照明,随着人们节能环保的意识增强,LED灯具的应用越发普及。LED驱动电源,作为LED灯具的关键组成部分,其性能的好坏直接影响着LED灯具的性能和使用寿命。LED驱动电源工作的典型伏安特性曲线,呈现出非线性指数型函数关系,当LED灯源两端电压发生微小变化时,就会引起流过它的电流发生很大改变,此时电路突然增加的功耗会落到LED灯珠上,因此需要特定的LED驱动芯片,以确保其正常工作,进而发挥出LED的优势。LED驱动电源质量的好坏,直接影响到LED灯具的使用寿命。究其原因,一是驱动电源IC发热严重,热耗散对其余元件对驱动电源中的其他元件产生影响,IC发热严重降低IC的使用寿命。因此,如何降低IC功耗、减少IC的温度越发显得重要。另一原因是驱动电源的加抗浪涌能力弱,容易被高压损坏。
因此,需要一种新的LED驱动电源。
发明内容
为克服上述缺点中的至少一个,本申请提出一种LED驱动电源及照明装置。该LED驱动电源运行时IC的功耗低,且抗浪涌能力强。
为了达到以上目的,本申请采用如下技术方案:
一种LED驱动电源,其特征在于,包括:线性驱动电路,所述线性驱动电路中具有IC模组,所述IC模组具有:
第一端口,其电性连接VCC总线支路;
第二端口,其电性接地;
第三端口及第四端口,所述第三端口及第四端口用于连接负载回路,所述负载回路配置成包括依据规则排列的LED灯珠支路及电阻支路,且所述LED灯珠支路LED与电阻支路串联,即LED灯珠支路与电阻支路串联后的支路的两端连接至第三端口及第四端口。
在一实施方式中,该电阻支路包括一颗,二颗或多颗电阻。
在一实施方式中,该VCC总线支路具有第一电阻支路,且所述第一电阻支路包括至少一颗保险丝电阻。
在一实施方式中,该保险丝电阻为贴片型。
在一实施方式中,该线性驱动电路中具有DC转DC模块,且所述C转DC模块的功能集成于所述IC模组中。
本申请实施例提供一种照明装置,其包括上述的LED驱动电源。
在一实施方式中,该照明装置,还包括:支架,其上配置有LED灯丝。
有益效果
与现有技术相比,本申请提供的LED驱动电源具有如下优点:
1)抗浪涌能力强,并起回路短路保护作用。
2)可减小LED压降波动的影响,避免需要筛选LED而增加成本。
3)降低驱动中IC的功耗、进而降低IC的温度,从而尽量降低IC的热耗散对周围元件的影响。
附图说明
附图用来提供对本公开技术方案的理解,并且构成说明书的一部分,与本公开的实施例一起用于解释本公开的技术方案,并不构成对本公开技术方案的限制。附图中各部件的形状和大小不反映真实比例,目的只是示意说明本申请内容。
图1为本申请第一实施例LED驱动电源的功能拓扑示意图;
图1a为图1的LED驱动电源的拓扑示意图;
图2为本申请第二实施例LED驱动电源的功能拓扑示意图;
图2a为图2的LED驱动电源的拓扑示意图;
图3为本申请第三实施例LED驱动电源的功能拓扑示意图;
图3a为图3的LED驱动电源的拓扑示意图。
具体实施方式
以下结合具体实施例对上述方案做进一步说明。应理解,这些实施例是用于说明本申请而不限于限制本申请的范围。实施例中采用的实施条件可以如具体厂家的条件做进一步调整,未注明的实施条件通常为常规实验中的条件。
除非另外定义,本公开实施例使用的技术术语或者科学术语应当为本申请所属领域内具有一般技能的人士所理解的通常意义。本公开实施例中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性,而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或物件涵盖出现在该词后面列举的元件或者物件及其等同,而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接,而是可以包括电性的连接,不管是直接的还是间接的。在本文中,“电性连接”包括构成要素通过具有某种电作用的元件连接在一起的情况。“具有某种电作用的元件”只要可以进行连接的构成要素间的电信号的授受,就对其没有特别的限制。“具有某种电作用的元件”例如可以是电极或布线,或者是晶体管等开关元件,或者是电阻器、电感器或电容器等其它功能元件等。“上”、“下”、“左”、“右”等仅用于表示相对位置关系,当被描述对象的绝对位置改变后,则该相对位置关系也可能相应地改变。
在本申请中,术语“上”、“下”、“内”、“中”等指示的方位或位置关系为基于附图所示的方位或位置关系。这些术语主要是为了更好地描述本申请及其实施例,并非用于限定所指示的装置、元件或组成部分必须具有特定方位,或以特定方位进行构造和操作。
实施例
本申请实施例提供一种LED驱动电源,其包括线性驱动电路,该线性驱动电路具有等效的VCC总线支路,通过在VCC总线支路中串联电阻来分压。通过这样的设计来降低IC功耗、减少IC温度,从而减小IC的热耗散对其余元件的影响。在其他的实施方式中,可在VCC总线支路中串接保险丝电阻,这样的设计保险丝电阻在启动分压的同时,还可以增加抗浪涌能力,进而起到回路短路保护作用。
本申请另一实施例中提供一种LED驱动电源,其包括线性驱动电路,线性驱动电路连接LED灯珠负载,在LED灯珠负载中配置电阻(如串联电阻),来降低IC的温度,使得LED灯珠的负极温度降低,进而可增加LED灯珠的寿命。另外,在负载回路中串接电阻可以减小LED灯珠压降波动的影响,例如:在LED灯珠正向电流较低时,压降较小,从而会造成IC前后输入与输出压差过大,损耗增加甚至超过IC极限允许功率,因此需要筛选LED,此时会相应的增加成本。如果在负载回路中串接电阻增压则可以将一部分IC功率转移到电阻上,保证电路的正常工作条件。在一实施例中,LED灯珠负载中配置电阻可描述为电阻混在灯珠之间(如两个灯珠之间),这样也可降低LED灯珠上的压降。
接下来,结合附图来描述本申请提出的LED驱动电源。如图1所示本申请一实施例LED驱动电源的拓扑示意图,LED驱动电源包括:IC模组,该IC模组具有:第一端口,其电性连接VCC总线支路;第二端口,其电性连接接地(GND),第三端口及第四端口,该第三端口及第四端口用于连接负载回路,该负载回路包括依据规则排列的LED灯珠支路,及电阻支路,该LED灯珠支路与电阻支路串联。即LED灯珠支路与电阻支路串联后的支路的两端连接至第三端口及第四端口。该电阻可包括一颗,二颗或多颗电阻。LED驱动电源包括:AC转DC模块,DC转DC模块。较佳的,该DC转DC模块的功能集成于IC中。该LED灯珠支路在某些场合的表现形式可为LED灯丝。较佳的,其拓扑示意如图1A所示,LED灯珠支路包括复数LED灯珠。该LED灯珠支路连接电阻R1的一端,电阻R1的另一端连接至IC模块U1,电容C1一端连接VCC,另一端电性接地。作为图1a实施方式的
作为上述实施方式的变形,如图2为本申请第二实施例LED驱动电源的拓扑示意图;
图2中实施方式与图1实施方式的区别在于,电阻支路串联于VCC总线支路,IC模组的第三端口及第四端口连接LED灯珠负载。在一实施方式中的拓扑示意如图2a所示。LED灯珠支路包括复数LED灯珠。该LED灯珠支路的两端连接至IC模块U2,电阻R2的一端连接VCC,另一端经电容C2电性接地。
作为上述实施方式的变形,如图3为本申请第三实施例LED驱动电源的拓扑示意图。图3中实施方式与图1实施方式的区别在于,VCC总线支路中配置第一电阻支路。该第一电阻支路可包括一颗,二颗或多颗电阻。
本申请实施例提供一种LED驱动电源,其包括线性驱动电路,该线性驱动电路具有等效的VCC总线支路,通过在VCC总线支路中串联电阻来分压。通过这样的设计来降低IC功耗、减少IC温度,从而减小IC的热耗散对其余元件的影响。在其他的实施方式中,可在VCC总线支路中串接保险丝电阻,这样的设计保险丝电阻在启动分压的同时,还可以增加抗浪涌能力,进而起到回路短路保护作用。在一实施方式中的拓扑示意如图3a所示。该LED灯珠支路的一端连接至电阻R4的一端,另一端连接至IC模块U3;电阻R3的一端连接VCC,另一端经电容C3电性接地。
本申请实施例提出一种照明装置,该照明装置搭载上述的LED驱动电源。该照明装置配置有以一定规则排列的LED灯珠。驱动电源运行时以线性方式驱动,使得LED灯珠发光。本实施方式中,通过在照明装置的LED负载中串接电阻来降低LED驱动电源中IC的温度,使得LED的负极端温度降低,进而增加了LED的寿命。该照明装置可用于冷柜等环境封闭的应用场合,该类场合下照明光源配置有密封罩,这样照明光源工作时散热性差,若驱动电源中的IC的热量不能及时散热会降低照明光源的可靠性。本申请提出一种冷柜用照明光源,其搭载上述的驱动电源,照明光源工作时可降低IC功耗、减少IC温度,从而改善IC发热,减小IC的热耗散对其余元件的影响提高照明光源的可靠性。
在一实施方式中,该照明装置还包括:支架,其上配置有LED灯丝。
上述实施例只为说明本申请的技术构思及特点,其目的在于让熟悉此项技术的人是能够了解本申请的内容并据以实施,并不能以此限制本申请的保护范围。上述的自行走设备可为服务机器人。凡如本申请精神实质所做的等效变换或修饰,都应涵盖在本申请的保护范围之内。

Claims (11)

  1. 一种LED驱动电源,用于驱动冷柜照明光源中的LED灯珠支路,其中所述LED灯珠支路包含多个LED灯珠,其特征在于,所述LED驱动电源包含:
    线性驱动电路,电性连接所述LED灯珠支路;
    电阻支路,电性连接所述线性驱动电路,并且与所述LED灯珠支路串接,其中所述电阻支路包含至少一电阻,所述电阻被配置在所述多个LED灯珠的其中两LED灯珠之间,以降低所述多个LED灯珠上的压降。
  2. 一种LED驱动电源,其特征在于,包括:线性驱动电路,所述线性驱动电路中具有IC模组,所述IC模组具有:
    第一端口,其电性连接VCC总线支路;
    第二端口,其电性接地;
    第三端口及第四端口,所述第三端口及第四端口用于连接负载回路,所述负载回路配置成包括依据规则排列的LED灯珠支路及电阻支路,且所述LED灯珠支路LED与电阻支路串联。
  3. 如权利要求2所述的LED驱动电源,其特征在于,所述LED灯珠支路与所述电阻支路串联后的支路的两端连接至所述第三端口及所述第四端口。
  4. 如权利要求2所述的LED驱动电源,其特征在于,
    所述电阻支路包括一颗,二颗或多颗电阻。
  5. 如权利要求2所述的LED驱动电源,其特征在于,
    所述VCC总线支路具有第一电阻支路,且所述第一电阻支路包括至少一颗保险丝电阻。
  6. 如权利要求5所述的LED驱动电源,其特征在于,
    所述保险丝电阻为贴片型。
  7. 如权利要求2所述的LED驱动电源,其特征在于,
    所述线性驱动电路中具有DC转DC模块,且所述DC转DC模块的功能集成于所述IC模组中。
  8. 一种照明装置,其特征在于,包括:
    LED灯珠支路,包含多个LED灯珠;以及
    LED驱动电源,电性连接所述LED灯珠支路,其中所述LED驱动电源包括:
    线性驱动电路,电性连接所述LED灯珠支路;
    电阻支路,电性连接所述线性驱动电路,并且与所述LED灯珠支路串接,其中所述电阻支路包含至少一电阻,所述电阻被配置在所述多个LED灯珠的其中两LED灯珠之间,以降低所述多个LED灯珠上的压降。
  9. 如权利要求7所述的照明装置,其特征在于,
    还包括:支架,其上配置有设置为LED灯丝形式的所述LED灯珠支路。
  10. 一种冷柜用照明光源,其特征在于,包括:
    密封部件;
    支架;
    LED灯丝,配置在所述支架上,并位于所述密封部件内,其中所述LED灯丝包括多个规则排列的LED灯珠;以及
    LED驱动电源,配置于所述密封部件内并电性连接所述LED灯丝,其中所述LED驱动电源包括:
    集成于IC模组的DC转DC模块,所述IC模组具有:电性连接VCC总线支路的第一端口、电性连接接地端的第二端口以及电性连接所述LED灯丝的第三端口及第四端口;
    第一电阻支路,串联在所述VCC总线支路和所述第一端口之间;以及
    第二电阻支路,与所述LED灯丝串联,其中所述LED灯丝与所述第二电阻支路串联后的支路的两端连接至所述第三端口及所述第四端口。
  11. 如权利要求10所述的冷柜用照明光源,其特征在于,所述第二电阻支路包含至少一电阻,所述电阻被配置在所述多个LED灯珠的其中两LED灯珠之间,以降低所述多个LED灯珠上的压降。
PCT/CN2023/090717 2022-04-28 2023-04-26 一种led驱动电源、冷柜用照明光源及照明装置 WO2023208008A1 (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202453371U (zh) * 2012-02-08 2012-09-26 河海大学 一种大尺度粒子图像测速仪
CN103672607A (zh) * 2013-12-06 2014-03-26 木林森股份有限公司 一种光源电源一体化led路灯模组
CN207397011U (zh) * 2017-10-27 2018-05-22 深圳金喜来电子股份有限公司 风扇控制电路
CN113556853A (zh) * 2021-08-18 2021-10-26 东莞泛美光电有限公司 复合型本安电路
US20220039223A1 (en) * 2020-07-29 2022-02-03 Wuxi ORG Microelectronics Co., Ltd Linear drive circuit and led light having the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202453371U (zh) * 2012-02-08 2012-09-26 河海大学 一种大尺度粒子图像测速仪
CN103672607A (zh) * 2013-12-06 2014-03-26 木林森股份有限公司 一种光源电源一体化led路灯模组
CN207397011U (zh) * 2017-10-27 2018-05-22 深圳金喜来电子股份有限公司 风扇控制电路
US20220039223A1 (en) * 2020-07-29 2022-02-03 Wuxi ORG Microelectronics Co., Ltd Linear drive circuit and led light having the same
CN113556853A (zh) * 2021-08-18 2021-10-26 东莞泛美光电有限公司 复合型本安电路

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