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    • 6. 发明申请
    • LED LAMP FAILURE ALERTING SYSTEM
    • LED灯失灵报警系统
    • US20100052542A1
    • 2010-03-04
    • US12202662
    • 2008-09-02
    • Dennis SiemietJohn Ivey
    • Dennis SiemietJohn Ivey
    • H01J7/42G01J1/32G01K13/00
    • H05B33/089F21K9/232F21K9/278F21V23/0457F21Y2115/10G01J1/32G01J2001/4252H05B33/0803H05B33/0845H05B33/0848H05B33/0851H05B33/0857H05B33/0884H05B33/0893
    • Disclosed herein are embodiments of failure alerting systems for LED lamps and LED lamps having the same. An illustrative failure alerting system comprises a photodetector configured to detect an actual light output from the at least one LED, a regulator configured to receive a signal from the photodetector when the actual light output is below a target light output and to increase a current to the at least one LED to maintain the target light output, and a low light output indicator configured to receive a signal from the photodetector when the actual light output remains below the target light output and to produce a low light output signal. A thermal sensor can also be included and configured to sense an operating temperature of the LED and to control the regulator to increase the current and the target light output to ensure the operating temperature does not exceed the target temperature.
    • 这里公开了用于LED灯的失效报警系统和具有该故障报警系统的LED灯具的实施例。 说明性的故障警报系统包括被配置为检测来自至少一个LED的实际光输出的光电检测器,被配置为当实际光输出低于目标光输出时从光电检测器接收信号并将电流增加到 至少一个LED以保持目标光输出,以及低光输出指示器,其被配置为当实际光输出保持在目标光输出以下并且产生低光输出信号时,从光电检测器接收信号。 热传感器还可以包括并配置为感测LED的工作温度,并且控制调节器增加电流和目标光输出,以确保工作温度不超过目标温度。
    • 8. 发明授权
    • LED lamp failure alerting system
    • LED灯故障报警系统
    • US08674626B2
    • 2014-03-18
    • US12202662
    • 2008-09-02
    • Dennis SiemietJohn Ivey
    • Dennis SiemietJohn Ivey
    • H05B37/02
    • H05B33/089F21K9/232F21K9/278F21V23/0457F21Y2115/10G01J1/32G01J2001/4252H05B33/0803H05B33/0845H05B33/0848H05B33/0851H05B33/0857H05B33/0884H05B33/0893
    • Disclosed herein are embodiments of failure alerting systems for LED lamps and LED lamps having the same. An illustrative failure alerting system comprises a photodetector configured to detect an actual light output from the at least one LED, a regulator configured to receive a signal from the photodetector when the actual light output is below a target light output and to increase a current to the at least one LED to maintain the target light output, and a low light output indicator configured to receive a signal from the photodetector when the actual light output remains below the target light output and to produce a low light output signal. A thermal sensor can also be included and configured to sense an operating temperature of the LED and to control the regulator to increase the current and the target light output to ensure the operating temperature does not exceed the target temperature.
    • 这里公开了用于LED灯的失效报警系统和具有该故障报警系统的LED灯具的实施例。 说明性的故障警报系统包括被配置为检测来自至少一个LED的实际光输出的光电检测器,被配置为当实际光输出低于目标光输出时从光电检测器接收信号并将电流增加到 至少一个LED以保持目标光输出,以及低光输出指示器,其被配置为当实际光输出保持在目标光输出以下并且产生低光输出信号时,从光电检测器接收信号。 热传感器还可以包括并配置为感测LED的工作温度,并且控制调节器增加电流和目标光输出,以确保工作温度不超过目标温度。
    • 10. 发明授权
    • Illumination device including LEDs and a switching power control system
    • 照明装置包括LED和开关电源控制系统
    • US08421366B2
    • 2013-04-16
    • US12821769
    • 2010-06-23
    • Francis PalazzoloJohn Ivey
    • Francis PalazzoloJohn Ivey
    • H05B37/02
    • H05B33/0845H05B33/0851H05B37/0272
    • Disclosed herein is an illumination device including light-emitting diodes, an alternating current input, a full-wave rectifier coupled to the alternating current input and configured to produce a rectified voltage output and a power converter, the power converter having a switching element electrically coupled to the rectified voltage output of the full-wave rectifier. An improvement of the illumination device includes a feedback circuit configured to determine an average current across the light-emitting diodes and to invert a signal representing the average current to provide a switching signal to the switching element such that, for a range of operating points, increasing a current drawn into the power converter will decrease LED power and decreasing the current drawn into the power converter will increase LED power.
    • 本文公开了一种照明装置,其包括发光二极管,交流输入端,耦合到交流输入端并被配置为产生整流电压输出的全波整流器和功率转换器,所述功率转换器具有电耦合的开关元件 到整流整流器的整流电压输出。 照明装置的改进包括反馈电路,其被配置为确定跨越发光二极管的平均电流并且反转表示平均电流的信号以向切换元件提供切换信号,使得对于一些操作点的范围, 增加电流转换器中的电流将降低LED功率并降低吸入功率转换器的电流将增加LED功率。