公开(公告)号：US20170202072A1

公开(公告)日：2017-07-13

申请号：US15392499

申请日：2016-12-28

Applicant: SILICON WORKS CO., LTD.

Inventor： Yong Geun KIM ,  Gyeong Sik Mun ,  Geon Soo Jang

IPC: H05B33/08

CPC classification number: H05B33/0887 ,  H05B33/0815 ,  H05B33/083 ,  H05B33/0842

Abstract: Disclosed is a lighting apparatus using an LED as a light source. The lighting apparatus may include: a first driver configured to control a flow of a first current through a low-power switching element by comparing a reference voltage and a sensing voltage, in response to light emission of an LED group; and a second driver configured to form a flow of a second current through a high-power switching element in connection with the flow of the first current of the first driver, in response to light emission of the LED group. The lighting apparatus stably provides a current path for a current corresponding to high power.

公开(公告)号：US20170048947A1

公开(公告)日：2017-02-16

申请号：US15228080

申请日：2016-08-04

Applicant: SILICON WORKS CO., LTD.

Inventor： Yong Geun KIM ,  Ki Chul AN

IPC: H05B33/08

CPC classification number: H05B33/083 ,  H05B33/0809 ,  H05B33/0824 ,  H05B37/029 ,  Y10T307/453

Abstract: Disclosed is a lighting apparatus using an LED as a light source. The lighting apparatus may connect first and second lighting units in series or parallel according to a rectified voltage, change one or more of first and second driving currents corresponding to light emissions of the first and second lighting units, and have the universality for rectified voltages.

Abstract translation: 公开了使用LED作为光源的照明装置。 照明装置可以根据整流电压串联或并联连接第一和第二照明单元，改变与第一和第二照明单元的光发射相对应的第一和第二驱动电流中的一个或多个，并且具有整流电压的通用性。

公开(公告)号：US20160135256A1

公开(公告)日：2016-05-12

申请号：US14893291

申请日：2014-05-22

Applicant: SILICON WORKS CO., LTD.

Inventor： Yong Geun KIM ,  Sang Young LEE ,  Ki Chul AN

IPC: H05B33/08

CPC classification number: H05B33/083 ,  H05B33/0809 ,  H05B33/0887

Abstract: Disclosed is an LED lighting apparatus capable of performing lighting using a rectified voltage. The LED lighting apparatus may include a lamp divided into a plurality of light emitting modules, and perform lighting using a voltage obtained by lowering a rectified voltage, thereby preventing internal parts from being damaged by a surge voltage. Furthermore, the structure in which LED groups are arranged on a substrate can be improved to uniformize the light intensity.

Abstract translation: 公开了能够使用整流电压进行照明的LED照明装置。 LED照明装置可以包括分为多个发光模块的灯，并且使用通过降低整流电压而获得的电压进行照明，从而防止内部部件被浪涌电压损坏。 此外，可以提高将LED组布置在基板上的结构以使光强度均匀化。

公开(公告)号：US20140312805A1

公开(公告)日：2014-10-23

申请号：US14257831

申请日：2014-04-21

Applicant: SILICON WORKS CO., LTD.

Inventor： Yong Geun KIM ,  Jin Seok HONG ,  Jung Hee SEO

IPC: H05B33/08

CPC classification number: H05B33/0845

Abstract: An LED lighting device comprises an LED light source unit; a light intensity control unit configured to provide a light intensity control signal for controlling a light intensity through a plurality of steps in a light intensity control mode; and a light source driving unit configured to provide power to the LED light source unit according to the light intensity control signal.

Abstract translation: LED照明装置包括LED光源单元; 光强度控制单元，被配置为在光强度控制模式中通过多个步骤提供用于控制光强度的光强度控制信号; 以及光源驱动单元，被配置为根据光强度控制信号向LED光源单元提供电力。

公开(公告)号：US20140239847A1

公开(公告)日：2014-08-28

申请号：US14193476

申请日：2014-02-28

Applicant: SILICON WORKS CO., LTD.

Inventor： Yong Geun KIM ,  Sang Young LEE

IPC: H05B33/08

CPC classification number: H05B33/0818

Abstract: Disclosed are a light emitting diode illumination apparatus and a control method thereof. The light emitting diode illumination apparatus includes a a light source that includes a plurality of light emitting diode channels including one or more light emitting diodes, and emits light by application of a rectified voltage obtained by converting an AC voltage, and a control circuit that selectively provides current paths according to a change in a level of the rectified voltage through a plurality of switching circuits connected to the light emitting diode channels, and controls pulse widths of control pulses provided to the switching circuits such that an current supplied to the light source of each channel follows a waveform of the rectified voltage.

Abstract translation: 公开了一种发光二极管照明装置及其控制方法。 发光二极管照明装置包括：包括多个包含一个或多个发光二极管的发光二极管通道的光源，并且通过施加通过转换AC电压获得的整流电压来发光;以及控制电路，其选择性地提供 根据连接到发光二极管通道的多个开关电路，根据整流电压的电平变化的电流路径，并且控制提供给开关电路的控制脉冲的脉冲宽度，使得提供给每个 通道遵循整流电压的波形。

公开(公告)号：US20180027624A1

公开(公告)日：2018-01-25

申请号：US15546331

申请日：2016-01-26

Applicant: SILICON WORKS CO., LTD.

Inventor： Yong Geun KIM

IPC: H05B33/08

CPC classification number: H05B33/0851 ,  H05B33/0824 ,  H05B33/083

Abstract: Disclosed is a control circuit of an LED lighting apparatus, capable of reducing total harmonic distortion (THD). The control circuit may include a THD reduction circuit configured to control a driving current on a current path corresponding to light emission of an LED group in response to a change of a rectified voltage.

公开(公告)号：US20160150605A1

公开(公告)日：2016-05-26

申请号：US14945700

申请日：2015-11-19

Applicant: SILICON WORKS CO., LTD.

Inventor： Yong Geun KIM

IPC: H05B33/08

CPC classification number: H05B33/083

Abstract: Disclosed is a lighting apparatus for reducing total harmonic distortion (THD). The lighting apparatus may include a lighting unit having a plurality of LED groups divided into first and second lighting groups, and the lighting unit may provide a current path for light emission corresponding to a change of a rectified voltage, using two or more drives having the same structure.

Abstract translation: 公开了一种用于减少总谐波失真（THD）的照明装置。 照明装置可以包括具有分成第一和第二照明组的多个LED组的照明单元，并且照明单元可以使用具有第一和第二照明组的两个或更多个驱动器来提供与整流电压的改变相对应的用于发光的电流路径 相同的结构。

公开(公告)号：US20160119985A1

公开(公告)日：2016-04-28

申请号：US14883941

申请日：2015-10-15

Applicant: SILICON WORKS CO., LTD.

Inventor： Yong Geun KIM ,  Gyeong Sik MUN ,  Ki Chul AN

IPC: H05B33/08

CPC classification number: H05B33/0809 ,  H05B33/0827 ,  H05B33/083

Abstract: Disclosed is a lighting apparatus which includes LEDs and reduces flicker. The lighting apparatus may secure a charge voltage by performing a charge operation using a current corresponding to a rectified voltage equal to or more than a preset level, and compensate for the rectified voltage provided to a lighting unit including LED groups by performing a discharge operation for the charge voltage in response to the rectified voltage less than the preset level, thereby reducing flicker.

Abstract translation: 公开了一种包括LED并减少闪烁的照明装置。 照明装置可以通过使用对应于等于或大于预设电平的整流电压的电流进行充电操作来确保充电电压，并且通过执行放电操作来补偿提供给包括LED组的照明单元的整流电压 充电电压响应于整流电压小于预设电平，从而减少闪烁。

公开(公告)号：US20160014862A1

公开(公告)日：2016-01-14

申请号：US14770186

申请日：2014-02-27

Applicant: SILICON WORKS CO., LTD.

Inventor： Yong Geun KIM ,  Ki Chul AN ,  Sang Young LEE

IPC: H05B33/08

CPC classification number: H05B33/0845 ,  H05B33/0809 ,  H05B33/0815 ,  H05B33/0824 ,  H05B33/083

Abstract: Provided is a control circuit of an LED lighting apparatus, which is capable of reducing the occurrence of a flicker while performing lighting. The control circuit of the LED lighting apparatus may include a charge and discharge module charged by a rectified voltage and discharging LED channels, and control one or more of charge timing, a charged voltage, and discharge timing of the charge and discharge module such that the charge and discharge module supplies a voltage to the LED channels at least during a control period at which the amount of current supplied to the LED channels is the smallest. Thus, the occurrence of a flicker in the LED lighting apparatus can be improved.

Abstract translation: 提供了一种LED照明装置的控制电路，其能够在进行照明的同时减少闪烁的发生。 LED照明装置的控制电路可以包括由整流电压充电并放电LED通道的充放电模块，并且控制充电定时，充电电压和充放电模块的放电定时中的一个或多个，使得 至少在提供给LED通道的电流量最小的控制周期期间，充电和放电模块向LED通道提供电压。 因此，可以提高LED照明装置中的闪烁的发生。