公开(公告)号：US20130106292A1

公开(公告)日：2013-05-02

申请号：US13662168

申请日：2012-10-26

Applicant: LG INNOTEK CO., LTD.

Inventor： Gwan Bon KOO ,  Dong Keun YOON ,  Jong Hyun LEE ,  Jin Woo LEE ,  Jae Beom CHO ,  Ji Woong JO

IPC: H05B37/02

CPC classification number: H05B33/0815 ,  H05B33/0887 ,  Y02B20/341

Abstract: Disclosed is an LED protection circuit using a one-shot vibrator. The LED protection circuit includes an LED module; an LED load-open detection circuit for detecting a voltage applied to the LED module to vary a reference potential; a latch circuit for maintaining a latch state according to the reference potential of the LED load-open detection circuit; a current limit circuit for receiving an output signal from the latch circuit to output a first signal; an LED load connection detection circuit for varying the reference potential through the first signal to output a second signal; a trigger input circuit connected to the LED load connection detection circuit for outputting a third signal using the second signal; and a one-shot vibrator for outputting a fourth signal of a square waveform during a predetermined time when the third signal is input.

Abstract translation: 公开了使用单触发振动器的LED保护电路。 LED保护电路包括LED模块; LED负载开路检测电路，用于检测施加到LED模块的电压以改变参考电位; 锁存电路，用于根据LED负载开路检测电路的参考电位保持锁存状态; 电流限制电路，用于接收来自锁存电路的输出信号以输出第一信号; LED负载连接检测电路，用于通过第一信号改变参考电位以输出第二信号; 连接到所述LED负载连接检测电路的触发输入电路，用于使用所述第二信号输出第三信号; 以及单次振动器，用于在输入第三信号的预定时间期间输出方波的第四信号。

公开(公告)号：US20240014658A1

公开(公告)日：2024-01-11

申请号：US18254525

申请日：2021-08-31

Applicant: LG INNOTEK CO., LTD.

Inventor： Heo Kyoung PARK ,  Won Seok NAM ,  Jong Hyun LEE

IPC: H02J3/32 ,  H02M1/14 ,  H02J7/00

CPC classification number: H02J3/32 ,  H02M1/14 ,  H02J7/00712 ,  H02J7/00711 ,  H02J2207/20

Abstract: According to an embodiment, the present invention may comprise: an input unit which receives a required power value and a reference voltage value from an inverter and receives a link voltage value from a direct current link capacitor; and a control unit which calculates a slope of a droop control curve according to the reference voltage value and the required power value, calculates an output power value by substituting a difference value between the link voltage value and the reference voltage value into the slope, and calculates a target current value according to the output power value.

公开(公告)号：US20170079122A1

公开(公告)日：2017-03-16

申请号：US15236741

申请日：2016-08-15

Applicant: LG INNOTEK CO., LTD.

Inventor： Jong Hyun LEE ,  Jung Tae KIM ,  Dong Yeol HAN

IPC: H05B37/02 ,  H05B41/39 ,  H02J7/00 ,  H02M7/04 ,  H02M3/04

CPC classification number: H05B37/0272 ,  H02J7/0052 ,  H02J7/35 ,  H05B41/39

Abstract: A wireless dimming apparatus operatively associated with a driving power apparatus operating with AC power includes a controller, a non-insulting type DC-DC converter for receiving DC power AC-DC converted by the driving power apparatus and converting the DC power into a predetermined operation voltage of the wireless dimming apparatus, a wireless communicator for demodulating an RF signal received through an installed antenna and transmitting the RF signal to the controller, a dimming circuit for receiving a predetermined lighting control signal corresponding to the demodulated RF signal from the controller and transmitting the predetermined lighting control signal to the driving power apparatus, and a DC power switch for supplying the operation voltage to the dimming circuit according to a predetermined control signal of the controller. Accordingly, the wireless dimming apparatus has a small size and high cost efficiency.

Abstract translation: 与使用AC电源操作的驱动电力设备可操作地相关联的无线调光装置包括控制器，用于接收由驱动电力设备转换的DC电力AC-DC的非绝缘型DC-DC转换器，并将DC电力转换为预定的操作 无线调光装置的电压，用于解调通过安装的天线接收的RF信号并将RF信号发送到控制器的无线通信器;调光电路，用于从控制器接收与解调的RF信号相对应的预定照明控制信号，并发送 到驱动电力装置的预定照明控制信号，以及根据控制器的预定控制信号向调光电路提供工作电压的DC电源开关。 因此，无线调光装置的尺寸小，成本效益高。

公开(公告)号：US20170041993A1

公开(公告)日：2017-02-09

申请号：US15039247

申请日：2014-11-26

Applicant: LG INNOTEK CO., LTD.

Inventor： Dong Soo LEE ,  Jong Hyun LEE ,  Kwang Jong KIM ,  Seok YOON

IPC: H05B33/08 ,  F21V31/00 ,  F21V23/02 ,  F21V23/06

CPC classification number: H05B33/0809 ,  F21V23/023 ,  F21V23/06 ,  F21V31/005 ,  H05B33/0842 ,  H05B33/0884

Abstract: The present invention relates to a power supply apparatus for an LED lighting, comprising: a printed circuit board on which a circuit for converting input power into output power for driving the LED lighting is printed; an MCU, which comprises a driving voltage port, a ground port, and a voltage sensing port and is connected to the printed circuit board, for delivering control signals to the circuit so that a current applied to the LED lighting is converted based on a voltage inputted into the voltage sensing port; a first resistance of which one end is connected to the driving voltage port and the other end is connected to a voltage sensing node; a second resistance of which one end is connected to the ground port and the other end is connected to the voltage sensing node; a sensing wire of which one end is connected to the voltage sensing port and the other end is connected to the voltage sensing node; a first wire of which one end is connected to one end of the first resistance and the other end is open; a second wire of which one end is connected to one end of the second resistance is the other end is open; a third wire including a third resistance wherein one end of the third resistance is connected to the voltage sensing node and the other end of the third resistance is open; and a housing provided with an inner space to which the printed circuit board, the MCU, the first resistance, the second resistance, the sensing wire, and one end of the first to third wires are coupled.

Abstract translation: LED照明用电源装置技术领域本发明涉及一种LED照明用电源装置，其特征在于，包括：印刷电路基板，印刷有用于将输入电力转换为用于驱动所述LED照明的输出电力的电路; MCU，其包括驱动电压端口，接地端口和电压感测端口，并且连接到印刷电路板，用于将控制信号传送到电路，使得施加到LED照明的电流基于电压被转换 输入到电压感测端口; 其一端连接到驱动电压端口的第一电阻和另一端连接到电压感测节点; 其一端连接到地端口的第二电阻，另一端连接到电压感测节点; 感测线，其一端连接到电压感测端口，另一端连接到电压感测节点; 一端与第一电阻的一端连接，另一端开放的第一线; 一端与第二电阻的一端连接的第二线是另一端开放; 第三导线，包括第三电阻，其中第三电阻的一端连接到电压感测节点，第三电阻的另一端断开; 以及设置有内部空间的壳体，印刷电路板，MCU，第一电阻，第二电阻，感测线以及第一至第三线的一端耦合到该内部空间。

公开(公告)号：US20200146125A1

公开(公告)日：2020-05-07

申请号：US16630678

申请日：2018-07-12

Applicant: LG INNOTEK CO., LTD.

Inventor： Ji Woong JO ,  Jong Hyun LEE ,  Jae Ho CHOI ,  Min Hak KIM ,  Min Su SEO ,  Seung Wan BAEK

IPC: H05B45/392 ,  H05B45/14 ,  H01L29/866

Abstract: An LED lighting device according to one embodiment of the present invention comprises: an LED array; a first control unit for controlling the dimming of the LED array; a second control unit for transmitting, to the first control unit, a dimming control signal for controlling the dimming of the LED array; and a transformer comprising a primary coil and a secondary coil spaced apart from each other, wherein the first control unit is connected to the primary coil, the second control unit is connected to the secondary coil, the primary coil and the secondary coil are insulated from each other, the transformer transmits a pulse signal that repeats on/off at predetermined intervals from the first control unit to the second control unit, and, when the pulse signal transmitted from the first control unit to the second control unit via the transformer becomes off, the dimming control signal is transmitted from the second control unit to the first control unit via the transformer and is used to control the dimming of the LED array.

公开(公告)号：US20170027036A1

公开(公告)日：2017-01-26

申请号：US15215894

申请日：2016-07-21

Applicant: LG INNOTEK CO., LTD.

Inventor： Jong Hyun LEE ,  Dong Keun YOON ,  Jung Tae KIM ,  Shin CHO

IPC: H05B33/08

CPC classification number: H05B33/0845

Abstract: A dimming circuit includes an active dimmer configured to apply input power Vin to an amplification module or an error compensation module, the amplification module configured to amplify an output current of the active dimmer, and the error compensation module configured to correct an error or distortion of the amplification module. The amplification module and the error compensation module are connected in a feedback form.

Abstract translation: 调光电路包括被配置为将输入功率Vin施加到放大模块或误差补偿模块的有源调光器，所述放大模块被配置为放大有源调光器的输出电流，并且所述误差补偿模块被配置为校正错误或失真 放大模块。 放大模块和误差补偿模块以反馈形式连接。