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。

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

IPC: H05B37/02 ,  H05B33/08

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。

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。

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。

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。