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公开(公告)号：US20150173138A1
公开(公告)日：2015-06-18
申请号：US14132059
申请日：2013-12-18
Applicant: General Electric Company
Inventor： Bruce Richard Roberts
IPC: H05B33/08
CPC classification number: H05B33/0809 , Y02B20/386
Abstract: Provided is a circuit replacement device for a light emitting diode (LED) tube lamp. The circuit includes a cathode emulator configured for (i) coupling to an input power source and (ii) emulating operation of a fluorescent lamp cathode. Also included is a rectification mechanism having an input port coupled to an output of the cathode emulator and an output port configured for coupling to at least one from the group including a current supply and an output load.
Abstract translation: 提供了一种用于发光二极管（LED）管灯的电路更换装置。 电路包括阴极模拟器，其被配置用于（i）耦合到输入电源和（ii）仿真荧光灯阴极的操作。 还包括整流机构，其具有耦合到阴极仿真器的输出端的输入端口和被配置为耦合到包括电流源和输出负载的组中的至少一个的输出端口。
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公开(公告)号：US09748844B2
公开(公告)日：2017-08-29
申请号：US14975349
申请日：2015-12-18
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Ramanujam Ramabhadran , Jeffrey Joseph Nasadoski , Yehuda Daniel Levy , Shimon Khananshvili , Pradeep Vijayan , Bruce Richard Roberts
CPC classification number: H02M3/1582 , H02M1/12 , H02M1/4208 , H02M1/4225 , H05B33/0815 , Y02B70/126
Abstract: An electronic device includes a controller configured to regulate one or more voltages or currents of a power converter. The controller is configured to receive an input voltage of the power converter, determine whether the power converter is operating in a first mode of operation or a second mode of operation based at least in part on the input voltage, generate a multiplier reference signal for the power converter based on whether the power converter is operating in the first mode of operation or the second mode of operation, and adjust an input current of the power converter based at least in part on the multiplier reference signal. Adjusting the input current includes correcting the input current to be substantially identical in form to the input voltage.
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公开(公告)号：US10187937B2
公开(公告)日：2019-01-22
申请号：US15354222
申请日：2016-11-17
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Bruce Richard Roberts
Abstract: A method of operating an LED lighting device includes sampling a voltage of a rectified AC waveform used to provide power to the LED lighting device, selectively connecting one or more of a plurality of LED light sources in a one or more of a series and parallel combination to achieve a predetermined voltage across the connected LED light sources with respect to the sampled voltage, and regulating a current through the connected LED light sources to achieve a predetermined current with respect to the sampled voltage.
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公开(公告)号：US20140103812A1
公开(公告)日：2014-04-17
申请号：US13649280
申请日：2012-10-11
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Bruce Richard Roberts , Glenn Howard Kuenzler
IPC: H05B37/02
CPC classification number: H05B33/0869 , H05B33/0866
Abstract: A system and method for producing white light in an adjustable light emitting diode (LED) illumination device is provided. The system and method varies the “off” time for one of multiple sets of light emitting diodes (LEDs) or channels in succession in order to compensate for and stabilize the color-shifting or degradation that gradually occurs in LEDs. Each channel corresponds to a different color. By varying the “off” time of only one channel at a time, the system efficiently utilizes the majority of the LEDs, thereby enabling the production of a more stable white light with fewer LEDs.
Abstract translation: 提供了一种用于在可调节发光二极管（LED）照明装置中产生白光的系统和方法。 该系统和方法连续地改变多组发光二极管（LED）或通道之一的“关闭”时间，以便补偿和稳定在LED中逐渐发生的色移或劣化。 每个通道对应不同的颜色。 通过一次只改变一个通道的“关闭”时间，系统有效地利用了大部分的LED，从而使得能够用更少的LED产生更稳定的白光。
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公开(公告)号：US09641063B2
公开(公告)日：2017-05-02
申请号：US14164416
申请日：2014-01-27
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Ramanujam Ramabhadran , Gang Yao , Bruce Richard Roberts , Jeffrey Joseph Nasadoski
CPC classification number: H02M1/42 , H02M1/4225 , H02M1/44 , H02M3/04 , H05B33/0809 , H05B33/0815 , H05B33/0851 , Y02B20/347 , Y02B70/126
Abstract: A power factor controller (PFC) for an electrical load such as LED lighting includes a power factor correcting converter for generating a sinusoidal input current. The PFC further includes a programmable controller for estimating a phase shifted multiplier. A current regulator generates a desired PFC current in response to an input voltage, an output load and the phase shifted and subsequently blanked multiplier. The electrical load operates in response to the sinusoidal input current based at least partially on the desired PFC current.
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Patent Agency Ranking
公开(公告)号：US09332602B2
公开(公告)日：2016-05-03
申请号：US14104034
申请日：2013-12-12
Applicant: General Electric Company
Inventor： Bruce Richard Roberts , Shahzil Rana
IPC: H05B33/08
CPC classification number: H05B33/0815 , Y02B20/346
Abstract: A system and apparatus including a light emitting diode (LED) driver provides an operating DC voltage to a plurality of LEDs connected in series (LED array) for providing illumination. A rectifier circuit and a filter are coupled to an AC power supply and provide a rectified and filtered DC source voltage to a transformerless voltage boost circuit, which provides the operating DC voltage to the LED array. A hysteretic self-oscillating circuit drives the transformerless voltage boost circuit at an oscillation frequency. A tap is connected between two LEDs in the LED array, which provides an auxiliary DC voltage, which is used to power the oscillating circuit and which eliminates the need for the LED driver to have a conventional transformer or auxiliary DC-DC power converter. The transformerless voltage boost circuit includes an inductor, a capacitor, a diode, and a switch wherein the switch is controlled by the oscillating circuit.
Abstract translation: 包括发光二极管（LED）驱动器的系统和设备为串联连接的多个LED（LED阵列）提供工作DC电压以提供照明。 整流器电路和滤波器耦合到AC电源，并将经整流和滤波的DC源电压提供给无变压器电压升压电路，其向LED阵列提供工作DC电压。 迟滞式自振荡电路以无振荡频率驱动无变压器升压电路。 在LED阵列中的两个LED之间连接有抽头，其提供辅助DC电压，其用于为振荡电路供电，并且不需要LED驱动器来具有常规的变压器或辅助DC-DC电力转换器。 无变压器升压电路包括电感器，电容器，二极管和开关，其中开关由振荡电路控制。
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公开(公告)号：US20170179829A1
公开(公告)日：2017-06-22
申请号：US14975349
申请日：2015-12-18
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Ramanujam Ramabhadran , Jeffrey Joseph Nasadoski , Yehuda Daniel Levy , Shimon Khananshvili , Pradeep Vijayan , Bruce Richard Roberts
CPC classification number: H02M3/1582 , H02M1/12 , H02M1/4208 , H02M1/4225 , H05B33/0815 , Y02B70/126
Abstract: An electronic device includes a controller configured to regulate one or more voltages or currents of a power converter. The controller is configured to receive an input voltage of the power converter, determine whether the power converter is operating in a first mode of operation or a second mode of operation based at least in part on the input voltage, generate a multiplier reference signal for the power converter based on whether the power converter is operating in the first mode of operation or the second mode of operation, and adjust an input current of the power converter based at least in part on the multiplier reference signal. Adjusting the input current includes correcting the input current to be substantially identical in form to the input voltage.
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公开(公告)号：US09185766B2
公开(公告)日：2015-11-10
申请号：US13649280
申请日：2012-10-11
Applicant: General Electric Company
Inventor： Bruce Richard Roberts , Glenn Howard Kuenzler
CPC classification number: H05B33/0869 , H05B33/0866
Abstract: A system and method for producing white light in an adjustable light emitting diode (LED) illumination device is provided. The system and method varies the “off” time for one of multiple sets of light emitting diodes (LEDs) or channels in succession in order to compensate for and stabilize the color-shifting or degradation that gradually occurs in LEDs. Each channel corresponds to a different color. By varying the “off” time of only one channel at a time, the system efficiently utilizes the majority of the LEDs, thereby enabling the production of a more stable white light with fewer LEDs.
Abstract translation: 提供了一种用于在可调节发光二极管（LED）照明装置中产生白光的系统和方法。 该系统和方法连续地改变多组发光二极管（LED）或通道之一的“关闭”时间，以便补偿和稳定在LED中逐渐发生的色移或劣化。 每个通道对应不同的颜色。 通过一次只改变一个通道的“关闭”时间，系统有效地利用了大部分的LED，从而使得能够用更少的LED产生更稳定的白光。
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公开(公告)号：US20150214833A1
公开(公告)日：2015-07-30
申请号：US14164416
申请日：2014-01-27
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Ramanujam Ramabhadran , Gang Yao , Bruce Richard Roberts , Jeffrey Joseph Nasadoski
CPC classification number: H02M1/42 , H02M1/4225 , H02M1/44 , H02M3/04 , H05B33/0809 , H05B33/0815 , H05B33/0851 , Y02B20/347 , Y02B70/126
Abstract: A power factor controller (PFC) for an electrical load such as LED lighting includes a power factor correcting converter for generating a sinusoidal input current. The PFC further includes a programmable controller for estimating a phase shifted multiplier. A current regulator generates a desired PFC current in response to an input voltage, an output load and the phase shifted and subsequently blanked multiplier. The electrical load operates in response to the sinusoidal input current based at least partially on the desired PFC current.
Abstract translation: 用于诸如LED照明的电负载的功率因数控制器（PFC）包括用于产生正弦输入电流的功率因数校正转换器。 PFC还包括用于估计相移乘法器的可编程控制器。 电流调节器响应于输入电压，输出负载以及相移和随后的空白乘数产生期望的PFC电流。 至少部分地基于期望的PFC电流，电负载响应于正弦输入电流而工作。
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公开(公告)号：US20150173139A1
公开(公告)日：2015-06-18
申请号：US14104034
申请日：2013-12-12
Applicant: General Electric Company
Inventor： Bruce Richard Roberts , Shahzil Rana
IPC: H05B33/08
CPC classification number: H05B33/0815 , Y02B20/346
Abstract: A system and apparatus including a light emitting diode (LED) driver provides an operating DC voltage to a plurality of LEDs connected in series (LED array) for providing illumination. A rectifier circuit and a filter are coupled to an AC power supply and provide a rectified and filtered DC source voltage to a transformerless voltage boost circuit, which provides the operating DC voltage to the LED array. A hysteretic self-oscillating circuit drives the transformerless voltage boost circuit at an oscillation frequency. A tap is connected between two LEDs in the LED array, which provides an auxiliary DC voltage, which is used to power the oscillating circuit and which eliminates the need for the LED driver to have a conventional transformer or auxiliary DC-DC power converter. The transformerless voltage boost circuit includes an inductor, a capacitor, a diode, and a switch wherein the switch is controlled by the oscillating circuit.
Abstract translation: 包括发光二极管（LED）驱动器的系统和设备为串联连接的多个LED（LED阵列）提供工作DC电压以提供照明。 整流器电路和滤波器耦合到AC电源，并将经整流和滤波的DC源电压提供给无变压器电压升压电路，其向LED阵列提供工作DC电压。 迟滞式自振荡电路以无振荡频率驱动无变压器升压电路。 在LED阵列中的两个LED之间连接有抽头，其提供辅助DC电压，其用于为振荡电路供电，并且不需要LED驱动器来具有常规的变压器或辅助DC-DC电力转换器。 无变压器升压电路包括电感器，电容器，二极管和开关，其中开关由振荡电路控制。
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