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公开(公告)号：US20130093349A1
公开(公告)日：2013-04-18
申请号：US13654483
申请日：2012-10-18
Applicant: Lextar Electronics Corporation
Inventor： Chun-Kuang Chen , Po-Shen Chen , Feng-Ling Lin , Hui-Ying Chen , Tung-Yu Chen
CPC classification number: H05B33/0809 , H02M7/064 , H02M2001/008 , H05B33/0884 , H05B33/0887 , Y02B20/341 , Y02B20/348
Abstract: The invention relates to a driving circuit comprising a first bridge circuit, a second bridge circuit, a first protection device and a second protection device. The first bridge circuit comprising a first positive input terminal, a first negative input terminal, a first positive output terminal and a first negative output terminal is coupled to an AC voltage source to output a first voltage. The second bridge circuit comprising a second positive input terminal, a second negative input terminal, a second positive output terminal and a second negative output terminal is coupled to the AC voltage source to output a second voltage. The second and the first negative output terminals are both coupled to the ground potential. The first protection device is coupled between the second positive input terminal and the AC voltage source. The second protection device is coupled between the second negative input terminal and the AC voltage source.
Abstract translation: 本发明涉及包括第一桥接电路，第二桥接电路，第一保护装置和第二保护装置的驱动电路。 包括第一正输入端，第一负输入端，第一正输出端和第一负输出端的第一桥电路耦合到AC电压源以输出第一电压。 包括第二正输入端，第二负输入端，第二正输出端和第二负输出端的第二桥电路耦合到AC电压源以输出第二电压。 第二和第一负输出端都耦合到地电位。 第一保护装置耦合在第二正输入端和交流电压源之间。 第二保护装置耦合在第二负输入端和交流电压源之间。
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公开(公告)号：US09867248B2
公开(公告)日：2018-01-09
申请号：US15361076
申请日：2016-11-25
Applicant: Lextar Electronics Corporation
Inventor： Chien-Nan Yeh , Chun-Jong Chang , Po-Shen Chen , Kai-Hsiang Shih , Jhao-Cyuan Huang , Ku-Cheng Lin
CPC classification number: H05B33/0845 , H05B33/083 , H05B33/0857 , H05B33/086
Abstract: A dimming module and a solid state lighting device are shown. The dimming module includes a rectifying circuit, a phase control circuit, a processing circuit and a first driving circuit. The rectifying circuit is configured to convert an input AC voltage to a rectified voltage signal. The phase control circuit is configured to receive the rectified voltage signal and a dimming command, and output a control voltage signal correspondingly in which the phase control circuit controls a phase delay angle of the control voltage signal according to the dimming command. The processing circuit is configured to receive the control voltage signal and adjust a first driving voltage signal according to the phase delay angle. The first driving circuit is configured to receive the first driving voltage signal to drive a first lighting module.
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公开(公告)号：US09560701B2
公开(公告)日：2017-01-31
申请号：US13654483
申请日：2012-10-18
Applicant: LEXTAR ELECTRONICS CORPORATION
Inventor： Chun-Kuang Chen , Po-Shen Chen , Feng-Ling Lin , Hui-Ying Chen , Tung-Yu Chen
CPC classification number: H05B33/0809 , H02M7/064 , H02M2001/008 , H05B33/0884 , H05B33/0887 , Y02B20/341 , Y02B20/348
Abstract: The invention relates to a driving circuit comprising a first bridge circuit, a second bridge circuit, a first protection device and a second protection device. The first bridge circuit comprising a first positive input terminal, a first negative input terminal, a first positive output terminal and a first negative output terminal is coupled to an AC voltage source to output a first voltage. The second bridge circuit comprising a second positive input terminal, a second negative input terminal, a second positive output terminal and a second negative output terminal is coupled to the AC voltage source to output a second voltage. The second and the first negative output terminals are both coupled to the ground potential. The first protection device is coupled between the second positive input terminal and the AC voltage source. The second protection device is coupled between the second negative input terminal and the AC voltage source.
Abstract translation: 本发明涉及包括第一桥接电路，第二桥接电路，第一保护装置和第二保护装置的驱动电路。 包括第一正输入端，第一负输入端，第一正输出端和第一负输出端的第一桥电路耦合到AC电压源以输出第一电压。 包括第二正输入端，第二负输入端，第二正输出端和第二负输出端的第二桥电路耦合到AC电压源以输出第二电压。 第二和第一负输出端都耦合到地电位。 第一保护装置耦合在第二正输入端和交流电压源之间。 第二保护装置耦合在第二负输入端和交流电压源之间。
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公开(公告)号：US09474115B2
公开(公告)日：2016-10-18
申请号：US15062178
申请日：2016-03-06
Applicant: Lextar Electronics Corporation
Inventor： Chun-Jong Chang , Po-Shen Chen , Jhao-Cyuan Huang , Chien-Nan Yeh
CPC classification number: H05B33/0815 , H03K5/08 , H05B33/0812
Abstract: A dimming circuit is disclosed herein. The dimming circuit includes a control voltage receiving module and a driving module. The control voltage receiving module is configured to output a reference voltage according to a control voltage. The driving module is electrically connected to the control voltage receiving module, in which the driving module includes a driving transistor, a first transistor and a feedback circuit. The driving transistor is configured to provide a driving current to drive a lighting module. The first transistor is configured to control the driving transistor with feedback according to the reference voltage. The feedback circuit is electrically connected between the driving transistor and the first transistor and configured to determine the operating state of the first transistor according to the driving current.
Abstract translation: 本文公开了一种调光电路。 调光电路包括控制电压接收模块和驱动模块。 控制电压接收模块被配置为根据控制电压输出参考电压。 驱动模块电连接到控制电压接收模块，其中驱动模块包括驱动晶体管，第一晶体管和反馈电路。 驱动晶体管被配置为提供驱动电流以驱动照明模块。 第一晶体管被配置为根据参考电压来控制具有反馈的驱动晶体管。 反馈电路电连接在驱动晶体管和第一晶体管之间，并被配置为根据驱动电流确定第一晶体管的工作状态。
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公开(公告)号：US09093858B2
公开(公告)日：2015-07-28
申请号：US14058529
申请日：2013-10-21
Applicant: Lextar Electronics Corporation
Inventor： Po-Shen Chen
CPC classification number: H02J9/065 , F21S9/022 , F21V29/54 , F21Y2105/00 , F21Y2115/10 , H01L35/00 , H02J7/007
Abstract: An illumination system includes a light-emitting device, a first switch element, a driving device, a detecting circuit, an arithmetic unit and a power supply unit. The first switch element is configured for receiving an external voltage supplied by an external power source. The driving device is configured for converting the external voltage to a direct-current power signal for driving the light-emitting device to emit light; the detecting circuit is configured for detecting a voltage across the first switch element and converting the voltage to a detecting signal; the arithmetic unit is configured for performing an arithmetic operation on the direct-current power signal and the detecting signal to generate a control signal; and the power supply unit is configured for supplying power for the light-emitting device according to the control signal and driving the light-emitting device to emit light. An illumination driving method is also disclosed herein.
Abstract translation: 照明系统包括发光装置，第一开关元件，驱动装置，检测电路，运算单元和电源单元。 第一开关元件被配置为接收由外部电源提供的外部电压。 驱动装置被配置为将外部电压转换成用于驱动发光装置发光的直流电力信号; 所述检测电路被配置为检测所述第一开关元件两端的电压并将所述电压转换为检测信号; 所述算术单元被配置为对所述直流电力信号和所述检测信号执行算术运算以产生控制信号; 并且电源单元被配置为根据控制信号为发光装置供电，并且驱动发光装置发光。 本文还公开了照明驱动方法。
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Patent Agency Ranking
公开(公告)号：US20140191679A1
公开(公告)日：2014-07-10
申请号：US14089800
申请日：2013-11-26
Applicant: Lextar Electronics Corporation
Inventor： Chun-Kuang Chen , Po-Shen Chen , Feng-Ling Lin , Hui-Ying Chen
IPC: H05B33/08
CPC classification number: H05B33/0809 , H05B33/0848
Abstract: A dimming circuit and a lighting device using the same are provided. The dimming circuit comprises an interface trigger unit, an average duty cycle calculating unit, a control voltage calculating unit and a comparing unit. The interface trigger unit receives an on-time of each pulse width from each period in a PWM signal. The average duty cycle calculating unit is coupled to the interface trigger unit and calculates a ratio of the on-time to the period. The control voltage calculating unit is coupled to the average duty cycle calculating unit, and calculates a desired voltage according to the ratio. The comparing unit is coupled to the control voltage calculating unit, and sends the desired voltage and a differential voltage to a driving circuit.
Abstract translation: 提供了一种调光电路和使用其的照明装置。 调光电路包括接口触发单元，平均占空比计算单元，控制电压计算单元和比较单元。 接口触发单元从PWM信号中的每个周期接收每个脉冲宽度的导通时间。 平均占空比计算单元耦合到接口触发单元，并计算接通时间与周期的比率。 控制电压计算单元耦合到平均占空比计算单元，并根据该比率计算所需电压。 比较单元耦合到控制电压计算单元，并将所需的电压和差分电压发送到驱动电路。
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公开(公告)号：US20140111105A1
公开(公告)日：2014-04-24
申请号：US13893374
申请日：2013-05-14
Applicant: LEXTAR ELECTRONICS CORPORATION
Inventor： Chun-Kuang Chen , Po-Shen Chen , Feng-Ling Lin , Hui-Ying Chen
CPC classification number: H05B37/02 , H05B33/08 , H05B33/0815 , H05B33/0848
Abstract: A dimmer circuit and a lighting apparatus using the same are provided. The dimmer circuit comprises a dimmer, a rectifier, a sample-and-hold unit, an integral unit and a current holding circuit. The dimmer is coupled to an AC for modulating the AC into an alternating signal. The rectifier couples the dimmer and the AC for rectifying the alternating signal into a DC signal. The sample-and-hold unit is coupled to the rectifier for sampling the DC signal to obtain an average positive wave pulse. The integral unit is coupled to the sample-and-hold unit for integrating the average positive wave pulse to generate a DC voltage. The current holding circuit comprises a switch and a bleeder. The current holding circuit determines the on/off state of the switch according to a comparison between the DC voltage and a reference voltage, such that the DC signal passes through the bleeder or the switch.
Abstract translation: 提供了一种调光电路和使用其的照明装置。 调光电路包括调光器，整流器，采样保持单元，整体单元和电流保持电路。 调光器耦合到AC，用于将AC调制成交流信号。 整流器将调光器和AC耦合，将交流信号整流为直流信号。 采样保持单元耦合到整流器以对DC信号进行采样以获得平均正波脉冲。 积分单元耦合到采样保持单元，用于积分平均正波脉冲以产生直流电压。 电流保持电路包括开关和泄放器。 电流保持电路根据DC电压和参考电压之间的比较来确定开关的开/关状态，使得DC信号通过泄放器或开关。
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公开(公告)号：US20130093344A1
公开(公告)日：2013-04-18
申请号：US13653560
申请日：2012-10-17
Applicant: LEXTAR ELECTRONICS CORPORATION
Inventor： Chun-Kuang Chen , Feng-Ling Lin , Po-Shen Chen , Hui-Ying Chen , Tung-Yu Chen
IPC: H05B37/02
CPC classification number: H05B33/086
Abstract: An embodiment of the invention provides a lamp comprising a first emitting device, a second emitting device, and a control signal generation device. The control signal generation device generates a first control signal and a second control signal to control the first emitting device and the second emitting device, so that a first light flux generated by the first emitting device is equivalent to a second light flux generated by the second emitting device, wherein the second control signal is generated according to the first control signal.
Abstract translation: 本发明的实施例提供一种灯，包括第一发光器件，第二发光器件和控制信号产生器件。 控制信号产生装置产生第一控制信号和第二控制信号以控制第一发射装置和第二发射装置，使得由第一发射装置产生的第一光通量等于由第二发射装置和第二发射装置产生的第二光通量 发射装置，其中根据第一控制信号产生第二控制信号。
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公开(公告)号：US20130093334A1
公开(公告)日：2013-04-18
申请号：US13653563
申请日：2012-10-17
Applicant: LEXTAR ELECTRONICS CORPORATION
Inventor： Feng-Ling Lin , Po-Shen Chen , Hui-Ying Chen , Chun-Kuang Chen , Tung-Yu Chen
IPC: H05B37/02
CPC classification number: H05B37/0272 , G08C17/02 , G08C23/04 , G08C2201/93 , H05B33/0842
Abstract: A lamp comprising a light emitting device and a controller is disclosed. The controller receives a control signal from a handheld device and switches the light emitting device according to the control signal such that the light emitting device operates in a light emitting mode corresponding to the control signal, in which the control signal is generated by the handheld device according to real-time information.
Abstract translation: 公开了一种包括发光装置和控制器的灯。 控制器从手持设备接收控制信号，并根据控制信号切换发光设备，使得发光设备以对应于控制信号的发光模式工作，其中控制信号由手持设备产生 根据实时信息。
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公开(公告)号：US20130093331A1
公开(公告)日：2013-04-18
申请号：US13653015
申请日：2012-10-16
Applicant: LEXTAR ELECTRONICS CORPORATION
Inventor： Feng-Ling Lin , Po-Shen Chen , Hui-Ying Chen , Chun-Kuang Chen , Tung-Yu Chen
IPC: H05B37/02
CPC classification number: H05B33/086
Abstract: An embodiment of the invention provides a lamp comprising a control circuit and a light emitting device. The light emitting device comprises a plurality of light emitting units with different wavelengths. The control circuit calibrates a control signal according to an environment light to adjust a light spectrum of the light emitting device by controlling the luminance of each light emitting unit.
Abstract translation: 本发明的实施例提供了一种包括控制电路和发光装置的灯。 发光器件包括具有不同波长的多个发光单元。 控制电路根据环境光校准控制信号，通过控制每个发光单元的亮度来调节发光器件的光谱。
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