LED TUBE LAMP WITH IMPROVED COMPATIBILITY WITH ELECTRICAL BALLASTS

    公开(公告)号:US20170347423A1

    公开(公告)日:2017-11-30

    申请号:US15618794

    申请日:2017-06-09

    IPC分类号: H05B33/08 F21K9/278 F21K9/27

    摘要: An LED tube lamp is disclosed. The LED tube lamp includes a lamp tube, a first external connection terminal and a second external connection terminal coupled to the lamp tube and for receiving an external driving signal, a rectifying circuit coupled to the first external connection terminal and the second external connection terminal and configured to rectify the external driving signal to produce a rectified signal, a filtering circuit coupled to the rectifying circuit and configured to filter the rectified signal to produce a filtered signal, an LED module coupled to the filtering circuit and configured to receive the filtered signal for emitting light; and a conduction-delaying circuit coupled to the rectifying circuit and comprising a conduction-delaying device, wherein the conduction-delaying circuit is configured such that when the external driving signal is initially input to the LED tube lamp, the conduction-delaying device is in an open-circuit state, and then the conduction-delaying device will enter a conducting state when voltage across the conduction-delaying device exceeds the conduction-delaying device's trigger voltage value, wherein the conducting state of the conduction-delaying device causes the LED module to conduct current for emitting light.

    LED TUBE LAMP
    3.
    发明申请
    LED TUBE LAMP 有权
    LED管灯

    公开(公告)号:US20160219666A1

    公开(公告)日:2016-07-28

    申请号:US15065890

    申请日:2016-03-10

    IPC分类号: H05B33/08 F21K99/00

    摘要: An LED tube lamp is disclosed. The LED tube lamp includes a tube, a terminal adapter circuit, a first rectifying circuit, a filtering circuit, an LED lighting module and an anti-flickering circuit. The tube has a first pin and a second pin for receiving an external driving signal. The terminal adapter circuit has two fuses respectively coupled to the first and second pins. The first rectifying circuit is coupled to the first and second pins for rectifying the external driving signal to generate a rectified signal. The filtering circuit is coupled to the first rectifying circuit for filtering the rectified signal to generate a filtered signal. The LED lighting module is coupled to the filtering circuit and the LED lighting module having an LED module, wherein the LED lighting module is configured to receive the filtered signal and generate a driving signal, and the LED module receives the driving signal and emits light. The anti-flickering circuit is coupled between the filtering circuit and the LED lighting module, and a current higher than a set anti-flickering current flows the anti-flickering circuit when a peak value of the filtered signal is higher than a minimum conduction voltage of the LED module.

    摘要翻译: 公开了一种LED管灯。 LED管灯包括管,端子适配器电路,第一整流电路,滤波电路,LED照明模块和防闪烁电路。 管具有用于接收外部驱动信号的第一引脚和第二引脚。 端子适配器电路具有分别耦合到第一和第二引脚的两个熔丝。 第一整流电路耦合到第一和第二引脚,用于整流外部驱动信号以产生整流信号。 滤波电路耦合到第一整流电路,用于对整流信号进行滤波以产生滤波信号。 LED照明模块耦合到滤波电路,并且具有LED模块的LED照明模块,其中LED照明模块被配置为接收经滤波的信号并产生驱动信号,并且LED模块接收驱动信号并发光。 防闪烁电路耦合在滤波电路和LED照明模块之间,当滤波信号的峰值高于最小导通电压时,高于设定的防闪烁电流的电流流过防闪烁电路 LED模块。

    LED TUBE LAMP WITH OVERCURRENT AND/OR OVERVOLTAGE PROTECTION CAPABILITIES
    4.
    发明申请
    LED TUBE LAMP WITH OVERCURRENT AND/OR OVERVOLTAGE PROTECTION CAPABILITIES 有权
    具有过流和/或过压保护功能的LED管灯

    公开(公告)号:US20160198535A1

    公开(公告)日:2016-07-07

    申请号:US15054137

    申请日:2016-02-26

    IPC分类号: H05B33/08 F21K99/00

    摘要: A light-emitting diode (LED) tube lamp with overcurrent and/or overvoltage protection capabilities includes a lamp tube, a first rectifying circuit, a filtering circuit, an LED lighting module, and a protection circuit. The lamp tube has pins for receiving an external driving signal. The first rectifying circuit is for rectifying the external driving signal to produce a rectified signal. The filtering circuit is for filtering the rectified signal to produce a filtered signal. The LED lighting module includes an LED module, wherein the LED lighting module is configured to receive the filtered signal to produce a driving signal, and the LED module is for receiving the driving signal for emitting light. The protection circuit is configured to determine whether to enter a protection state, wherein upon entering the protection state, the protection circuit works to limit or restrain the level of the filtered signal.

    摘要翻译: 具有过电流和/或过电压保护功能的发光二极管(LED)管灯包括灯管,第一整流电路,滤波电路,LED照明模块和保护电路。 灯管具有用于接收外部驱动信号的引脚。 第一整流电路用于整流外部驱动信号以产生整流信号。 滤波电路用于对整流信号进行滤波以产生滤波信号。 LED照明模块包括LED模块,其中LED照明模块被配置为接收经滤波的信号以产生驱动信号,并且LED模块用于接收用于发光的驱动信号。 保护电路被配置为确定是否进入保护状态,其中在进入保护状态时,保护电路用于限制或限制滤波信号的电平。

    LED tube lamp
    7.
    发明授权

    公开(公告)号:US11131431B2

    公开(公告)日:2021-09-28

    申请号:US16823352

    申请日:2020-03-19

    摘要: An LED tube lamp comprises a glass tube, two end caps, an LED light strip inside the glass tube, a plurality of LED light sources on the LED light strip, a power supply module and an adhesive. The glass tube comprises a main body has an outer surface and two rear end regions respectively at two ends of the main body. The outer diameter of each of the rear end regions is less than that of the main body. Each of the end caps comprises a tubular wall sleeving over the respective rear end region and an end wall substantially perpendicular to the axial direction of the tubular wall and connected to an end of the tubular wall. The diameter of the outer surface of the main body is substantially the same as the diameter of the outer surface of the tubular wall. The power supply, comprises a rectifying circuit and a filtering circuit, is configured to drive the plurality of LED light sources. The adhesive is disposed between each of the inner surface of the tubular wall and the outer surface of each of the rear end regions.

    LED TUBE LAMP
    10.
    发明申请
    LED TUBE LAMP 审中-公开

    公开(公告)号:US20190281673A1

    公开(公告)日:2019-09-12

    申请号:US16420506

    申请日:2019-05-23

    摘要: An LED tube lamp comprises a tube, an LED light strip inside the tube, a plurality of LED light sources on the LED light strip, a power supply, and a first and a second end caps. The power supply comprises a circuit board, a plurality of electronic components and a heat-dissipating element. The plurality of electronic components and the heat-dissipating element are on the circuit board. The first end cap and the second end cap are respectively attached at two ends of the tube. The first end cap comprises a lateral wall and an end wall having an opening. The lateral wall is substantially coaxial with the tube and connected to the tube. The end wall is substantially perpendicular to an axial direction of the lateral wall and connected to an end of the lateral wall away from the tube. At least some of the plurality of electronic components and the heat-dissipating element are disposed inside the first end cap. The heat-dissipating element is closer to the opening on the end wall of the first end cap than the electronic components in the end cap are.