公开(公告)号：US10172205B2

公开(公告)日：2019-01-01

申请号：US15591088

申请日：2017-05-09

Applicant: Lextar Electronics Corporation

Inventor： Jhao-Cyuan Huang ,  Chien-Nan Yeh ,  Chun-Jong Chang ,  Ching-Piao Chen ,  Po-Shen Chen

IPC: H05B37/00 ,  H05B33/08 ,  F21K9/238 ,  F21V23/00 ,  F21S8/02 ,  F21S8/04 ,  F21K9/232 ,  F21Y115/10

Abstract: A dimming module includes a triggering circuit, a control signal generating circuit, a voltage converting circuit, and a linear driving circuit. The triggering circuit is configured to control a trigger delay angle of an AC input voltage according to a dimming command, in order to output a first voltage signal correspondingly. The control signal generating circuit is configured to output a control voltage according to the first voltage signal. The voltage converting circuit is configured to output a DC operating voltage having an operating level according to the first voltage signal, and output the DC operating voltage to a lighting module, in which the lighting module includes a light-emitting diode. The linear driving circuit is configured to drive the lighting module according to the control voltage.

公开(公告)号：US09867241B2

公开(公告)日：2018-01-09

申请号：US15361481

申请日：2016-11-27

Applicant: Lextar Electronics Corporation

Inventor： Chien-Nan Yeh ,  Chun-Jong Chang ,  Po-Shen Chen ,  Kai-Hsiang Shih ,  Jhao-Cyuan Huang ,  Ku-Cheng Lin

IPC: H05B37/02 ,  H05B33/08

CPC classification number: H05B33/0818 ,  H05B33/0827 ,  H05B33/083 ,  H05B33/0857

Abstract: A dimming module and a solid state lighting device are shown. The dimming module includes a rectifying circuit, a first driving circuit, and a processing circuit. The rectifying circuit is configured to convert an AC voltage to a rectified voltage. The first driving circuit is configured to receive the rectified voltage to provide a first current so as to drive a first lighting module. The first driving circuit includes a first switch. The first switch turns ON or OFF selectively according to a first control voltage signal so as to control the first current. The processing circuit is configured to receive a dimming command, and adjust the first control voltage signal according to the dimming command. The first control voltage signal is configured to control a phase delay angle and a duty cycle of the first current.

公开(公告)号：US09538595B2

公开(公告)日：2017-01-03

申请号：US14953410

申请日：2015-11-29

Applicant: Lextar Electronics Corporation

Inventor： Chun-Jong Chang ,  Jhao-Cyuan Huang ,  Po-Shen Chen ,  Chien-Nan Yeh

IPC: H05B37/00 ,  H05B33/08

CPC classification number: H05B33/0824 ,  H05B33/0809 ,  H05B33/0845

Abstract: An illumination device includes a rectifier circuit, M light-emitting modules, and a control module. The rectifier circuit has a positive output terminal and a negative output terminal, and generates a driving voltage between the positive output terminal and the negative output terminal according to an input power. The M light-emitting modules are coupled between the positive output terminal and the negative output terminal. Each of the M light-emitting modules has a conduction voltage, and includes a light-emitting unit that includes at least one light-emitting diode. The control module is coupled between the rectifier circuit and the M light-emitting modules, and controls the M light-emitting modules to dynamically form S light-emitting diode strings coupled in parallel with each other. A number of the light-emitting units in each of the S light-emitting diode strings is N, in which S×N=M, where M, S, N are positive integers.

Abstract translation: 照明装置包括整流电路，M个发光模块和控制模块。 整流电路具有正输出端子和负输出端子，根据输入功率在正输出端子和负输出端子之间产生驱动电压。 M个发光模块耦合在正输出端和负输出端之间。 M个发光模块中的每一个具有导通电压，并且包括包括至少一个发光二极管的发光单元。 控制模块耦合在整流电路和M个发光模块之间，并且控制M个发光模块以动态地形成彼此并联耦合的S个发光二极管串。 S个发光二极管串中的多个发光单元是N，其中S×N = M，其中M，S，N是正整数。

公开(公告)号：US20160119994A1

公开(公告)日：2016-04-28

申请号：US14740766

申请日：2015-06-16

Applicant: Lextar Electronics Corporation

Inventor： Po-Shen Chen ,  Chun-Jong Chang ,  Chien-Nan Yeh

IPC: H05B33/08 ,  H02J1/00

CPC classification number: H05B33/0851 ,  H02J1/00 ,  H02M5/297 ,  H05B33/0818 ,  Y02B20/346

Abstract: A solid state light source device and a dimming circuit are provided. The dimming circuit includes a rectifier circuit, a switch unit, and a control unit. The rectifier circuit is configured to convert an AC voltage signal to a rectified voltage signal. The switch unit is electrically connected between the rectifier circuit and a lighting module and configured to undergo switching according to a pulse width modulation signal to connect or disconnect the rectifier circuit and the lighting module. The control unit is electrically connected to the switch unit and configured to generate the pulse width modulation signal to control the switch unit.

Abstract translation: 提供固态光源装置和调光电路。 调光电路包括整流电路，开关单元和控制单元。 整流电路被配置为将AC电压信号转换成整流电压信号。 开关单元电连接在整流电路和点亮模块之间，并被配置为根据脉宽调制信号进行切换以连接或断开整流电路和照明模块。 控制单元电连接到开关单元并且被配置为产生脉宽调制信号以控制开关单元。

公开(公告)号：US09107255B2

公开(公告)日：2015-08-11

申请号：US14161997

申请日：2014-01-23

Applicant: Lextar Electronics Corporation

Inventor： Chun-Kuang Chen ,  Po-Shen Chen

IPC: H05B37/00 ,  H05B33/08 ,  F21K99/00 ,  H05B37/02 ,  F21Y103/00

CPC classification number: H05B33/0809 ,  F21K9/27 ,  F21Y2103/10 ,  F21Y2115/10 ,  H05B33/08 ,  H05B33/0803 ,  H05B37/02 ,  Y02B20/383 ,  Y02B20/386

Abstract: A light-emitting diode (LED) light tube driving circuit includes a LED driver and a rectifier unit. The LED driver is configured for receiving an operating voltage to drive at least one LED. The rectifier unit has a first input/output terminal and a second input/output terminal and is electrically coupled to an external alternating-current power source selectively by the first input/output terminal and the second input/output terminal. The rectifier unit is configured for providing the operating voltage to the LED driver. The rectifier unit further includes a first rectifier diode and a second rectifier diode.

Abstract translation: 发光二极管（LED）灯管驱动电路包括LED驱动器和整流器单元。 LED驱动器被配置为接收操作电压以驱动至少一个LED。 整流单元具有第一输入/输出端子和第二输入/输出端子，并且由第一输入/输出端子和第二输入/输出端子选择性地耦合到外部交流电源。 整流器单元被配置为向LED驱动器提供工作电压。 整流单元还包括第一整流二极管和第二整流二极管。

公开(公告)号：US09089022B2

公开(公告)日：2015-07-21

申请号：US14179581

申请日：2014-02-13

Applicant: Lextar Electronics Corporation

Inventor： Po-Shen Chen

IPC: H05B37/00 ,  H05B33/08

CPC classification number: H05B33/0815 ,  H05B33/0809 ,  H05B33/0845 ,  H05B33/0896

Abstract: A light adjusting device for adjusting the luminance of a light source is provided. The light adjusting device comprises a rectifier module, a first switch element, a second switch element and a control module. The rectifier module receives an AC signal from a first power node and a second power node, and rectifies the AC signal to output a driving signal to the light source. The first switch element is coupled to the first power node. The second switch element is coupled to the second power node. The control module outputs a control signal to the first and second switch elements to control the conduction states of the first and second switch elements. When the first and second switch elements are turned on, the driving signal provided to the light source is interrupted.

Abstract translation: 提供了一种用于调节光源的亮度的调光装置。 调光装置包括整流器模块，第一开关元件，第二开关元件和控制模块。 整流模块从第一功率节点和第二功率节点接收AC信号，并整流AC信号以向光源输出驱动信号。 第一开关元件耦合到第一功率节点。 第二开关元件耦合到第二功率节点。 控制模块向第一和第二开关元件输出控制信号以控制第一和第二开关元件的导通状态。 当第一和第二开关元件接通时，提供给光源的驱动信号被中断。

公开(公告)号：US20150061518A1

公开(公告)日：2015-03-05

申请号：US14179581

申请日：2014-02-13

Applicant: Lextar Electronics Corporation

Inventor： Po-Shen Chen

IPC: H05B33/08

CPC classification number: H05B33/0815 ,  H05B33/0809 ,  H05B33/0845 ,  H05B33/0896

Abstract: A light adjusting device for adjusting the luminance of a light source is provided. The light adjusting device comprises a rectifier module, a first switch element, a second switch element and a control module. The rectifier module receives an AC signal from a first power node and a second power node, and rectifies the AC signal to output a driving signal to the light source. The first switch element is coupled to the first power node. The second switch element is coupled to the second power node. The control module outputs a control signal to the first and second switch elements to control the conduction states of the first and second switch elements. When the first and second switch elements are turned on, the driving signal provided to the light source is interrupted.

Abstract translation: 提供了一种用于调节光源的亮度的调光装置。 调光装置包括整流器模块，第一开关元件，第二开关元件和控制模块。 整流模块从第一功率节点和第二功率节点接收AC信号，并整流AC信号以向光源输出驱动信号。 第一开关元件耦合到第一功率节点。 第二开关元件耦合到第二功率节点。 控制模块向第一和第二开关元件输出控制信号以控制第一和第二开关元件的导通状态。 当第一和第二开关元件接通时，提供给光源的驱动信号被中断。

公开(公告)号：US08884527B2

公开(公告)日：2014-11-11

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。