WO2021073550A1 - 高压高功率因数无频闪灯带 - Google Patents

高压高功率因数无频闪灯带 Download PDF

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Publication number
WO2021073550A1
WO2021073550A1 PCT/CN2020/121007 CN2020121007W WO2021073550A1 WO 2021073550 A1 WO2021073550 A1 WO 2021073550A1 CN 2020121007 W CN2020121007 W CN 2020121007W WO 2021073550 A1 WO2021073550 A1 WO 2021073550A1
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pin
voltage
chip
power
constant current
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PCT/CN2020/121007
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English (en)
French (fr)
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黄水华
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深圳市国盈光电有限公司
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Publication of WO2021073550A1 publication Critical patent/WO2021073550A1/zh

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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]
    • H05B45/30—Driver 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
    • H05B33/00—Electroluminescent light sources

Definitions

  • the invention relates to a lighting device, in particular to a high-voltage and high-power factor non-strobe light strip.
  • the power factor (PF) of traditional light strips is low, and there is a stroboscopic problem.
  • the present invention provides a high-voltage and high-power factor non-strobe light strip.
  • the present invention provides a high-voltage and high-power factor non-strobe light strip, which includes a power supply main circuit and a branch connected to the power supply main circuit.
  • the branch circuit includes a rectifier bridge DB1, a varistor RV1, a rectifier diode D1, and a rectifier bridge DB1, a varistor RV1, and a rectifier diode D1.
  • the pin 2 of the rectifier diode is connected; the cathode of the lamp bead unit is connected to the pin 2 of the stroboscopic chip U2; the pin 3 of the stroboscopic chip U2 is connected to the capacitor C1 respectively
  • One end of the constant current chip U1 is connected to the pin 5; the other end of the capacitor C1 is connected to the pin 1 of the de-strobe chip U2; the pin 2 of the constant current chip U1 is connected to the pin 5 of the constant current chip U1.
  • pin 4 of the constant current chip U1 is connected to the other end of the system bleeder resistor R2 and one end of the sampling resistor R1; the pin of the rectifier DB1 4 is connected to pin 1, pin 3 of the constant current chip U1 and the other end of the sampling resistor R1.
  • the branch circuit further includes a filter electrolytic capacitor E1 and a capacitor discharge resistor R4, and the positive electrode of the filter electrolytic capacitor E1 and one end of the bleeder resistor R4 are respectively connected to the anode of the lamp bead unit , The negative electrode of the filter electrolytic capacitor E1 and the other end of the bleeder resistor R4 are respectively connected to the pin 3 of the de-flickering chip U2.
  • the lamp bead unit includes at least two LED lamp beads connected in series.
  • the total voltage Uled of the series-connected LED lamp beads is between 0.8 and 1.2 times of the AC input voltage Uac.
  • the total voltage Uled of the series-connected LED lamp beads is equal to the AC input voltage Uac.
  • the power supply main circuit includes a main circuit fuse F1, one end of the main circuit fuse F1 is connected to the AC live wire; the other end of the main circuit fuse F1 is connected to the pin of the rectifier bridge DB1 1 phase connection; pin 3 of the rectifier bridge DB1 is connected to the AC neutral line.
  • the high-voltage and high-power factor non-strobe light strip includes an FPC soft board, the back of the FPC soft board is covered with a metal wire, and it is directly connected to the mains, the rectifier bridge DB1 and the varistor RV1 , Capacitor C1, constant current chip U1, de-strobe chip U2, rectifier diode D1, sampling resistor R1, system discharge resistor R2, power discharge resistor R3 are built in the same unit.
  • the constant current chip U1 is a high-voltage linear constant current IC with a thyristor dimming function, a withstand voltage of 450V, and a current range of 5-60mA.
  • the capacitor C1 is a high-voltage and low-frequency filter electrolytic capacitor with a withstand voltage of 200/400V, and the electrolytic capacitor has a capacity equal to the power of each branch.
  • the stroboscopic chip U2 is a chip that eliminates the 100HZ/120HZ LED current wave.
  • the chip has a built-in 90V power MOSFET, and controls the charge and discharge of the VC port capacitor by detecting the OUT port voltage to adjust the built-in power
  • the working state of the MOSFET converts the LED current ripple into the OUT port voltage ripple, thereby keeping the LED string current and voltage constant.
  • the beneficial effect of the present invention is: through the above-mentioned solution, the effect of high power factor value and no flicker is realized.
  • Fig. 1 is a circuit diagram of a branch circuit of a high-voltage and high-power factor non-strobe light strip of the present invention.
  • Fig. 2 is a circuit diagram of a power supply main circuit of a high-voltage, high-power factor, non-strobe light strip of the present invention.
  • a high-voltage and high-power factor non-strobe light strip includes a power supply main circuit and a branch connected to the power supply main circuit.
  • the branch circuit includes a rectifier bridge DB1 and a varistor RV1.
  • Rectifier diode D1 lamp bead unit, constant current chip U1, sampling resistor R1, system discharge resistor R2, power discharge resistor R3, de-strobe chip U2, capacitor C1, wherein one end of the varistor RV1 is connected to the The pin 2 of the rectifier bridge DB1 is connected, the other end of the varistor RV1 is connected to the pin 4 of the rectifier bridge DB1; the pin 2 of the rectifier bridge DB1 is connected to the pin 1 of the rectifier diode Connected, one end of the power discharging resistor R3 is connected to pin 2 of the rectifier bridge DB1; the other end of the power discharging resistor R3 is connected to pin 7 of the constant current chip U1; the lamp The anode of the bead unit
  • the branch circuit also includes a filter electrolytic capacitor E1 and a capacitor discharge resistor R4.
  • the positive electrode of the filter electrolytic capacitor E1 and one end of the bleeder resistor R4 are respectively connected to the anode of the lamp bead unit.
  • the negative electrode of the filter electrolytic capacitor E1 and the other end of the bleeder resistor R4 are respectively connected to the pin 3 of the de-strobe chip U2.
  • the lamp bead unit includes at least two LED lamp beads connected in series.
  • the total voltage Uled of the series-connected LED lamp beads is between 0.8 and 1.2 times the AC input voltage Uac.
  • the total voltage Uled of the series-connected LED lamp beads is equal to the AC input voltage Uac.
  • the power supply main circuit includes a main circuit fuse F1, one end of the main circuit fuse F1 is connected to the AC live wire; the other end of the main circuit fuse F1 is connected to the rectifier bridge DB1 Pin 1 is connected; Pin 3 of the rectifier bridge DB1 is connected to the AC neutral line.
  • the high-voltage and high-power factor non-strobe light strip includes an FPC soft board, the back of the FPC soft board is covered with metal wires, and it is directly connected to the neutral and live wires of the mains.
  • Bridge DB1, varistor RV1, capacitor C1, constant current chip U1, de-strobe chip U2, rectifier diode D1, sampling resistor R1, system discharge resistor R2, and power discharge resistor R3 are built in the same unit.
  • the constant current chip U1 is a high-voltage linear constant current IC with a thyristor dimming function, a withstand voltage of 450V and a current range of 5-60mA.
  • the capacitor C1 is a high-voltage and low-frequency filter electrolytic capacitor with a withstand voltage of 200/400V.
  • the electrolytic capacitor has a capacity equal to the power of each branch.
  • the de-flickering chip U2 is a chip that eliminates the 100HZ/120HZ LED current wave.
  • the chip has a built-in 90V power MOSFET, and controls the charge and discharge of the VC port capacitor by detecting the OUT port voltage.
  • the working state of the built-in power MOSFET converts the LED current ripple into the OUT port voltage ripple, so that the LED string current and voltage remain constant.
  • the present invention provides a high-voltage and high-power factor non-strobe light strip, which uses the back of the FPC soft board as a wire, namely ACL/N, and the main fuse F1 is connected in series with the branch live wire, which can realize the direct connection of AC/L and AC/N.
  • each section of the branch will be illuminated and achieve a high PF value without stroboscopic effect.
  • the effect of PF>0.9 in the United States Title 24 standard can be passed; the stroboscopic index can be reached The effect is less than 5%, which effectively protects human eyes and improves work efficiency.
  • the present invention provides a high-voltage and high-power factor non-strobe light strip, the rectifier bridge DB1 rectifies AC alternating current into DC direct current; LED1...LEDn are LED lamp beads, and the total voltage Uled is controlled at the AC input through a series connection.
  • the constant current chip U1 is a high-voltage linear constant current IC, with thyristor dimming function, withstand voltage 450V, current range 5-60mA;
  • capacitance C1 is a high-voltage and low-frequency filter electrolytic capacitor, with a withstand voltage of 200/400V.
  • the capacity of its electrolytic capacitor is determined by the power of each small branch.
  • the capacity is set at 1:1;
  • the de-strobe chip U2 is a 100HZ/ 120HZ LED current wave chip, the chip built-in 90V power MOSFET, by detecting the OUT port voltage to control the charge and discharge of the VC port capacitor, adjust the working state of the built-in power MOSFET, and convert the LED current ripple to the OUT port voltage ripple, so that The LED string current and voltage remain constant. Realize the high PF non-flicker LED strip solution.
  • the invention provides a high-voltage and high-power factor non-strobe light strip, which adds a rectifier bridge, a varistor, a filter electrolytic capacitor, a constant current IC, a de-flash IC, a rectifier diode, and a built-in chip resistor capacitor on the FPC board.
  • a rectifier bridge a varistor
  • a filter electrolytic capacitor a constant current IC
  • a de-flash IC a rectifier diode
  • a built-in chip resistor capacitor on the FPC board.
  • make the high-voltage non-strobe light strip take each small unit as a complete main body, and connect it to the mains through a US plug or 2 bare wires, which is OK. It solves the problems that the ordinary high-voltage light belt needs an external drive power supply, filter electrolytic capacitor, and the installation direction needs to be distinguished, and it is convenient and fast to install.

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

Abstract

本发明提供了一种高压高功率因数无频闪灯带，包括供电干路和与所述供电干路连接的支路，所述支路包括整流桥DB1、压敏电阻RV1、整流二极管D1、灯珠单元、恒流芯片U1、采样电阻R1、系统放电电阻R2、功率放电电阻R3、去频闪芯片U2、电容C1，其中，所述压敏电阻RV1的一端与所述整流桥DB1的引脚2相接，所述压敏电阻RV1的另外一端与所述整流桥DB1的引脚4相接；所述整流桥DB1的引脚2与所述整流二极管的引脚1相接，所述功率放电电阻R3的一端与所述整流桥DB1的引脚2相接；所述功率放电电阻R3的另一端与所述恒流芯片U1的引脚7相接；所述灯珠单元的阳极与所述整流二极管的引脚2相接。本发明的有益效果是：实现了高功率因数值且无频闪的效果。

Description

高压高功率因数无频闪灯带 技术领域
本发明涉及照明装置，尤其涉及一种高压高功率因数无频闪灯带。
背景技术
传统灯带的功率因数(Power Factor，PF)较低，并且，存在频闪问题。
发明内容
为了解决现有技术中的问题，本发明提供了一种高压高功率因数无频闪灯带。
本发明提供了一种高压高功率因数无频闪灯带，包括供电干路和与所述供电干路连接的支路，所述支路包括整流桥DB1、压敏电阻RV1、整流二极管D1、灯珠单元、恒流芯片U1、采样电阻R1、系统放电电阻R2、功率放电电阻R3、去频闪芯片U2、电容C1，其中，所述压敏电阻RV1的一端与所述整流桥DB1的引脚2相接，所述压敏电阻RV1的另外一端与所述整流桥DB1的引脚4相接；所述整流桥DB1的引脚2与所述整流二极管的引脚1相接，所述功率放电电阻R3的一端与所述整流桥DB1的引脚2相接；所述功率放电电阻R3的另一端与所述恒流芯片U1的引脚7相接；所述灯珠单元的阳极与所述整流二极管的引脚2相接；所述灯珠单元的阴极与所述去频闪芯片U2的引脚2相接；所述去频闪芯片U2的引脚3分别与所述电容C1的一端、所述恒流芯片U1的引脚5相接；所述电容C1的另一端与所述去频闪芯片U2的引脚1相接；所述恒流芯片U1的引脚2与所述系统泄放电阻R2的一端相接，所述恒流芯片U1的引脚4与所述系统泄放电阻R2的另一端及所述采样电阻R1的一端相接；所述整流DB1的引脚4与所述恒流芯片U1的引脚1、引脚3及所述采样电阻R1的另一端相接。
作为本发明的进一步改进，所述支路还包括滤波电解电容E1、电容放电电阻R4，所述滤波电解电容E1的正极、所述泄放电阻R4一端分别与所述灯珠单元的阳极相接，所述滤波电解电容E1的负极、所述泄放电阻R4的另一端分别与所述去频闪芯片U2的引脚3相接。
作为本发明的进一步改进，所述灯珠单元包括至少两个相串联的LED灯珠。
作为本发明的进一步改进，串联的LED灯珠的总电压Uled介于交流输入电压Uac的0.8到1.2倍之间。
作为本发明的进一步改进，串联的LED灯珠的总电压Uled等于交流输入电压Uac。
作为本发明的进一步改进，所述供电干路包括干路保险丝F1，所述干路保险丝F1的一端与交流电火线相接；所述干路保险丝F1的另一端与所述整流桥DB1的引脚1相接；所述整流桥DB1的引脚3接交流电零线。
作为本发明的进一步改进，所述高压高功率因数无频闪灯带包括FPC软板，所述FPC软板的背面覆有金属导线，直接接市电，所述整流桥DB1、压敏电阻RV1、电容C1、恒流芯片U1、去频闪芯片U2、整流二极管D1、采样电阻R1、系统放电电阻R2、功率放电电阻R3一起内置于同一单元内。
作为本发明的进一步改进，所述恒流芯片U1为高压线性恒流IC，具有可控硅调光功能，耐压450V，电流范围5-60mA。
作为本发明的进一步改进，所述电容C1为高压低频滤波电解电容，耐压200/400V，其电解电容的容量等于每个支路的功率大小。
作为本发明的进一步改进，所述去频闪芯片U2是一款消除100HZ/120HZ LED电流文波的芯片，芯片内置90V功率MOSFET，通过检测OUT端口电压控制VC端口电容的充放电，调整内置功率MOSFET的工作状态，把LED电流纹波转换为OUT端口电压纹波，从而使LED灯串电流和电压保持恒定。
本发明的有益效果是：通过上述方案，实现了高功率因数值且无频闪的效果。
附图说明
图1是本发明一种高压高功率因数无频闪灯带的支路的电路图。
图2是本发明一种高压高功率因数无频闪灯带的供电干路的电路图。
具体实施方式
下面结合附图说明及具体实施方式对本发明作进一步说明。
如图1至图2所示，一种高压高功率因数无频闪灯带，包括供电干路和与所述供电干路连接的支路，所述支路包括整流桥DB1、压敏电阻RV1、整流二极管D1、灯珠单元、恒流芯片U1、采样电阻R1、系统放电电阻R2、功率放电电阻R3、去频闪芯片U2、电容C1，其中，所述压敏电阻RV1的一端与所述整流桥DB1的引脚2相接，所述压敏电阻RV1的另外一端与所述整流桥DB1的引脚4相接；所述整流桥DB1的引脚2与所述整流二极管的引脚1相接，所述功率放电电阻R3的一端与所述整流桥DB1的引脚2相接；所述功率放电电阻R3的另一端与所述恒流芯片U1的引脚7相接；所述灯 珠单元的阳极与所述整流二极管的引脚2相接；所述灯珠单元的阴极与所述去频闪芯片U2的引脚2相接；所述去频闪芯片U2的引脚3分别与所述电容C1的一端、所述恒流芯片U1的引脚5相接；所述电容C1的另一端与所述去频闪芯片U2的引脚1相接；所述恒流芯片U1的引脚2与所述系统泄放电阻R2的一端相接，所述恒流芯片U1的引脚4与所述系统泄放电阻R2的另一端及所述采样电阻R1的一端相接；所述整流DB1的引脚4与所述恒流芯片U1的引脚1、引脚3及所述采样电阻R1的另一端相接，实现了高功率因数值且无频闪的效果。
如图1至图2所示，所述支路还包括滤波电解电容E1、电容放电电阻R4，所述滤波电解电容E1的正极、所述泄放电阻R4一端分别与所述灯珠单元的阳极相接，所述滤波电解电容E1的负极、所述泄放电阻R4的另一端分别与所述去频闪芯片U2的引脚3相接。
如图1至图2所示，所述灯珠单元包括至少两个相串联的LED灯珠。
如图1至图2所示，串联的LED灯珠的总电压Uled介于交流输入电压Uac的0.8到1.2倍之间。
如图1至图2所示，串联的LED灯珠的总电压Uled等于交流输入电压Uac。
如图1至图2所示，所述供电干路包括干路保险丝F1，所述干路保险丝F1的一端与交流电火线相接；所述干路保险丝F1的另一端与所述整流桥DB1的引脚1相接；所述整流桥DB1的引脚3接交流电零线。
如图1至图2所示，所述高压高功率因数无频闪灯带包括FPC软板，所述FPC软板的背面覆有金属导线，直接接市电的零线、火线，所述整流桥DB1、压敏电阻RV1、电容C1、恒流芯片U1、去频闪芯片U2、整流二极管D1、采样电阻R1、系统放电电阻R2、功率放电电阻R3一起内置于同一单元内。
如图1至图2所示，所述恒流芯片U1为高压线性恒流IC，具有可控硅调光功能，耐压450V，电流范围5-60mA。
如图1至图2所示，所述电容C1为高压低频滤波电解电容，耐压200/400V，其电解电容的容量等于每个支路的功率大小。
如图1至图2所示，所述去频闪芯片U2是一款消除100HZ/120HZ LED电流文波的芯片，芯片内置90V功率MOSFET，通过检测OUT端口电压控制VC端口电容的充放电，调整内置功率MOSFET的工作状态，把LED电流纹波转换为OUT端口电压纹波，从而使LED灯串电流和电压保持恒定。
本发明提供的一种高压高功率因数无频闪灯带，利用FPC软板背面做导线即ACL/N，干路保险丝F1串联在支路火线上，可实现AC/L，AC/N直接接入市电的零线、火线的情况下点亮每一节支路并达到高PF值且无频闪的效果，可通过美国Title 24标准里面的要求PF＞0.9的效果；频闪指数可以达到小于5％的效果，有效的保护人眼，提高工作效率。
本发明提供的一种高压高功率因数无频闪灯带，整流桥DB1将AC交流电整流成DC的直流电；LED1...LEDn为LED灯珠，通过串联的方式将总电压Uled控制在交流输入电压Uac的0.8到1.2倍之间，当Uled＝1Uac时效果达到最优；恒流芯片U1为高压线性恒流IC，具有可控硅调光功能，耐压450V，电流范围5-60mA；电容C1为高压低频滤波电解电容，耐压200/400V，其电解电容的容量根据每个小支路功率大小而定，一般按照1∶1设定容量；去频闪芯片U2是一款消除100HZ/120HZ LED电流文波的芯片，芯片内置90V功率MOSFET，通过检测OUT端口电压控制VC端口电容的充放电，调整内置功率MOSFET的工作状态，把LED电流纹波转换为OUT端口电压纹波，从而使LED灯串电流和电压保持恒定。实现高PF无频闪LED灯带方案。
本发明提供的一种高压高功率因数无频闪灯带，在FPC板上增加通过整流桥，压敏电阻，滤波电解电容，恒流IC，去频闪IC，整流二极管，贴片电阻电容内置在每一个小单元里面使高压无频闪灯带以每一个小单元为一个完整的主体，通过美规插头或2跟裸线与市电相接即OK。解决了普通的高压灯带需要外接驱动电源、滤波电解电容、安装需要区分方向的问题，实现了方便快速安装。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本发明的保护范围。

Claims (10)

  1. 一种高压高功率因数无频闪灯带，其特征在于：包括供电干路和与所述供电干路连接的支路，所述支路包括整流桥DB1、压敏电阻RV1、整流二极管D1、灯珠单元、恒流芯片U1、采样电阻R1、系统放电电阻R2、功率放电电阻R3、去频闪芯片U2、电容C1，其中，所述压敏电阻RV1的一端与所述整流桥DB1的引脚2相接，所述压敏电阻RV1的另外一端与所述整流桥DB1的引脚4相接；所述整流桥DB1的引脚2与所述整流二极管的引脚1相接，所述功率放电电阻R3的一端与所述整流桥DB1的引脚2相接；所述功率放电电阻R3的另一端与所述恒流芯片U1的引脚7相接；所述灯珠单元的阳极与所述整流二极管的引脚2相接；所述灯珠单元的阴极与所述去频闪芯片U2的引脚2相接；所述去频闪芯片U2的引脚3分别与所述电容C1的一端、所述恒流芯片U1的引脚5相接；所述电容C1的另一端与所述去频闪芯片U2的引脚1相接；所述恒流芯片U1的引脚2与所述系统泄放电阻R2的一端相接，所述恒流芯片U1的引脚4与所述系统泄放电阻R2的另一端及所述采样电阻R1的一端相接；所述整流DB1的引脚4与所述恒流芯片U1的引脚1、引脚3及所述采样电阻R1的另一端相接。
  2. 根据权利要求1所述的高压高功率因数无频闪灯带，其特征在于：所述支路还包括滤波电解电容E1、电容放电电阻R4，所述滤波电解电容E1的正极、所述泄放电阻R4一端分别与所述灯珠单元的阳极相接，所述滤波电解电容E1的负极、所述泄放电阻R4的另一端分别与所述去频闪芯片U2的引脚3相接。
  3. 根据权利要求1所述的高压高功率因数无频闪灯带，其特征在于：所述灯珠单元包括至少两个相串联的LED灯珠。
  4. 根据权利要求3所述的高压高功率因数无频闪灯带，其特征在于：串联的LED灯珠的总电压Uled介于交流输入电压Uac的0.8到1.2倍之间。
  5. 根据权利要求3所述的高压高功率因数无频闪灯带，其特征在于：串联的LED灯珠的总电压Uled等于交流输入电压Uac。
  6. 根据权利要求1所述的高压高功率因数无频闪灯带，其特征在于：所述供电干路包括干路保险丝F1，所述干路保险丝F1的一端与交流电火线相接；所述干路保险丝F1的另一端与所述整流桥DB1的引脚1相接；所述整流桥DB1的引脚3接交流电零线。
  7. 根据权利要求6所述的高压高功率因数无频闪灯带，其特征在于：所述高压高功率因数无频闪灯带包括FPC软板，所述FPC软板的背面覆有金属导线，直接接市电，所述整流桥DB1、压敏电阻RV1、电容C1、恒流芯片U1、去频闪芯片U2、整流二极管D1、采样电阻R1、系统放电电阻R2、功率放电电阻R3一起内置于同一单元内。
  8. 根据权利要求1所述的高压高功率因数无频闪灯带，其特征在于：所述恒流芯片U1为高压线性恒流IC，具有可控硅调光功能，耐压450V，电流范围5-60mA。
  9. 根据权利要求1所述的高压高功率因数无频闪灯带，其特征在于：所述电容C1为高压低频滤波电解电容，耐压200/400V，其电解电容的容量等于每个支路的功率大小。
  10. 根据权利要求1所述的高压高功率因数无频闪灯带，其特征在于：所述去频闪芯片U2是一款消除100HZ/120HZ LED电流文波的芯片，芯片内置90V功率MOSFET，通过检测OUT端口电压控制VC端口电容的充放电，调整内置功率MOSFET的工作状态，把LED电流纹波转换为OUT端口电压纹波，从而使LED灯串电流和电压保持恒定。
PCT/CN2020/121007 2019-10-18 2020-10-15 高压高功率因数无频闪灯带 WO2021073550A1 (zh)

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