公开(公告)号：US08274235B2

公开(公告)日：2012-09-25

申请号：US12815193

申请日：2010-06-14

申请人： Jae-Soon Choi ,  Hak-Hee Lee ,  Il-Young Jung ,  Eung-Woo Lee

发明人： Jae-Soon Choi ,  Hak-Hee Lee ,  Il-Young Jung ,  Eung-Woo Lee

IPC分类号： H05B37/02

CPC分类号： H05B41/2985

摘要： An inverter according to exemplary embodiment of the present invention generates a plurality of feedback voltages corresponding to driving voltages of discharge lamps. The inverter generates a first minimum voltage having a smaller feedback voltage of a plurality of feedback voltages and compares the first minimum voltage and a short circuit reference voltage to determine a short circuit of at least two discharge lamps. Also, the inverter generates a plurality of feedback voltages corresponding to driving currents of a plurality of discharge lamps, generates a second minimum voltage having a smaller feedback voltage of a plurality of the feedback voltages, and compares the second minimum voltage and an open circuit reference voltage to determine the open circuit of the at least two discharge lamps.

摘要翻译： 根据本发明的示例性实施例的逆变器产生对应于放电灯的驱动电压的多个反馈电压。 逆变器产生具有多个反馈电压的反馈电压较小的第一最小电压，并比较第一最小电压和短路参考电压，以确定至少两个放电灯的短路。 此外，逆变器产生与多个放电灯的驱动电流对应的多个反馈电压，产生具有多个反馈电压的较小反馈电压的第二最小电压，并且比较第二最小电压和开路基准 确定至少两个放电灯的开路电压。

公开(公告)号：US20110037407A1

公开(公告)日：2011-02-17

申请号：US12850996

申请日：2010-08-05

申请人： Byunghak AHN ,  Hak-Hee LEE ,  Il-Young JUNG ,  Eung-Woo LEE

发明人： Byunghak AHN ,  Hak-Hee LEE ,  Il-Young JUNG ,  Eung-Woo LEE

IPC分类号： H05B41/24 ,  H05B37/02

CPC分类号： H05B33/0893 ,  H05B33/0827

摘要： The present invention relates to an LED light emitting device. An LED light emitting device includes a plurality of LED channels including a plurality of LEDs. The LED light emitting device further includes a transformer configured to convert an input voltage and supply an output voltage to the plurality of LED channels, a controller, and an LED driver. The controller controls the transformer according to a first feedback signal for interrupting power supply to the plurality of LED channels when a dimming off state in which currents are not supplied to the plurality of LED channels occurs or when a state in which the maximum channel voltage of a plurality of channel voltages corresponding to voltages applied to the plurality of LED channels, respectively, is an overvoltage and a defective state in which the plurality of LED channels include an open state are maintained during a predetermined threshold period. The LED driver generates information on the dimming off state and information on the defective state. Further, the LED driver is connected to a secondary side of the transformer, the controller is connected to a primary side of the transformer insulated from the secondary side, and the first feedback signal is generated according to the information on the dimming off state and the information on the defective state.

摘要翻译： LED发光装置技术领域本发明涉及LED发光装置。 LED发光装置包括包括多个LED的多个LED通道。 LED发光装置还包括被配置为转换输入电压并将输出电压提供给多个LED通道的变压器，控制器和LED驱动器。 控制器根据第一反馈信号控制变压器，以便当不向多个LED通道中提供电流的调光关闭状态时或者当发生电流最大通道电压的状态时中断对多个LED通道的供电 对应于分别施加到多个LED通道的电压的多个通道电压分别是在预定的阈值周期期间保持多个LED通道包括打开状态的过电压和故障状态。 LED驱动器产生关于调光关闭状态的信息和关于缺陷状态的信息。 此外，LED驱动器连接到变压器的次级侧，控制器连接到与次级侧绝缘的变压器的初级侧，并且根据关于调光关闭状态的信息和第二反馈信号生成第一反馈信号 关于缺陷状态的信息。

公开(公告)号：US20120104956A1

公开(公告)日：2012-05-03

申请号：US13225953

申请日：2011-09-06

申请人： Seunguk YANG ,  Byunghak AHN ,  Hak-Hee LEE ,  Eung-Woo LEE

发明人： Seunguk YANG ,  Byunghak AHN ,  Hak-Hee LEE ,  Eung-Woo LEE

IPC分类号： H05B37/02

CPC分类号： H05B33/0827 ,  H05B33/0815 ,  Y02B20/346

摘要： The present invention relates to an LED emitting device.The LED emitting device includes: a converter converting an input voltage according to a switching operation of a power source switch to generate at least two output voltages; an LED panel unit including a plurality of LED channels having a plurality of LEDs; a micom board operated by a first output voltage among the at least two output voltages to control the operation of the LED emitting device; a regulator converting a second output voltage among the at least two output voltages into a voltage suitable for the operation of the LED panel unit; and a multi-channel control unit controlling an operation of the regulator according to a lowest minimum voltage among the voltages of a plurality of LED channels and receiving the first output voltage to generate a first feedback voltage VF1.

摘要翻译： 本发明涉及一种LED发光装置。 LED发光装置包括：转换器，根据电源开关的开关操作转换输入电压以产生至少两个输出电压; LED面板单元，其包括具有多个LED的多个LED通道; 所述微板由所述至少两个输出电压中的第一输出电压操作以控制所述LED发射装置的操作; 将所述至少两个输出电压中的第二输出电压转换成适合于所述LED面板单元的操作的电压的调节器; 以及多通道控制单元，其根据多个LED通道的电压中的最低最小电压来控制所述调节器的操作，并接收所述第一输出电压以产生第一反馈电压VF1。

公开(公告)号：US08519642B2

公开(公告)日：2013-08-27

申请号：US12850996

申请日：2010-08-05

申请人： Byunghak Ahn ,  Hak-Hee Lee ,  Il-Young Jung ,  Eung-Woo Lee

发明人： Byunghak Ahn ,  Hak-Hee Lee ,  Il-Young Jung ,  Eung-Woo Lee

IPC分类号： H05B37/00

CPC分类号： H05B33/0893 ,  H05B33/0827

摘要： An LED light emitting device includes LED channels with LEDs, a transformer that converts an input voltage and supply an output voltage to the LED channels, a controller, and an LED driver. The controller controls the transformer according to a first feedback signal for interrupting power supply to the LED channels when a dimming off state in which currents are not supplied to the plurality of LED channels occurs or when a state in which the maximum channel voltage of a plurality of channel voltages corresponding to voltages applied to the LED channels, respectively, is an overvoltage and a defective state in which the plurality of LED channels include an open state are maintained during a predetermined threshold period. The LED driver generates information on the dimming off state and information on the defective state.

摘要翻译： LED发光装置包括具有LED的LED通道，转换输入电压并将输出电压提供给LED通道的变压器，控制器和LED驱动器。 控制器根据第一反馈信号控制变压器，以便在不向多个LED通道中提供电流的调光关闭状态时或当多个LED的最大通道电压的状态发生时，中断向LED通道供电 对应于施加到LED通道的电压的通道电压分别是在预定的阈值周期期间维持多个LED通道包括打开状态的过电压和故障状态。 LED驱动器产生关于调光关闭状态的信息和关于缺陷状态的信息。

公开(公告)号：US20100327760A1

公开(公告)日：2010-12-30

申请号：US12815193

申请日：2010-06-14

申请人： Jae-Soon CHOI ,  Hak-Hee LEE ,  Il-Young JUNG ,  Eung-Woo LEE

发明人： Jae-Soon CHOI ,  Hak-Hee LEE ,  Il-Young JUNG ,  Eung-Woo LEE

IPC分类号： H05B41/36

CPC分类号： H05B41/2985

摘要： The present invention relates to an inverter and the driving method. The inverter according to exemplary embodiment of the present invention generates a plurality of feedback voltages corresponding to driving voltages of a plurality of discharge lamps. The inverter generates a first minimum voltage having a smaller feedback voltage of a plurality of feedback voltages and compares the first minimum voltage and a short circuit reference voltage in order to determine a short circuit of at least two discharge lamps. The inverter senses a short circuit lamp of a plurality of the discharge lamps by using the comparison result and a first sawtooth wave signal having a predetermined period. Also, the inverter generates a plurality of feedback voltages corresponding to driving currents of a plurality of discharge lamps, generates a second minimum voltage having a smaller feedback voltage of a plurality of the feedback voltages, and compares the second minimum voltage and an open circuit reference voltage in order to determine the open circuit of the at least two discharge lamps. The inverter senses an open circuit lamp of a plurality of discharge lamps by using the comparison result and a first sawtooth wave signal having a predetermined period.

摘要翻译： 逆变器及其驱动方法技术领域本发明涉及一种逆变器及其驱动方法。 根据本发明的示例性实施例的逆变器产生对应于多个放电灯的驱动电压的多个反馈电压。 逆变器产生具有多个反馈电压的较小反馈电压的第一最小电压，并比较第一最小电压和短路参考电压，以确定至少两个放电灯的短路。 逆变器通过使用比较结果和具有预定周期的第一锯齿波信号来感测多个放电灯的短路灯。 此外，逆变器产生与多个放电灯的驱动电流对应的多个反馈电压，产生具有多个反馈电压的较小反馈电压的第二最小电压，并且比较第二最小电压和开路基准 电压以确定至少两个放电灯的开路。 逆变器通过使用比较结果和具有预定周期的第一锯齿波信号来感测多个放电灯的开路灯。

公开(公告)号：US20100079176A1

公开(公告)日：2010-04-01

申请号：US12564632

申请日：2009-09-22

申请人： Jin-Hwa CHUNG ,  Jae-Soon CHOI ,  Chan SON ,  Hak-Hee LEE

发明人： Jin-Hwa CHUNG ,  Jae-Soon CHOI ,  Chan SON ,  Hak-Hee LEE

IPC分类号： H03K3/00

CPC分类号： H05B41/2828 ,  H02M1/36

摘要： A load driver includes an inverter and an inverter driver. The inverter converts an input voltage into a driving voltage of a discharge lamp using at least one first switch for switching according to a duty ratio, and the inverter driver controls the inverter. The inverter driver controls the duty ratio using a voltage of a capacitor and a control signal having a waveform that is repeated with a predetermined frequency. The capacitor is charged and discharged by a current corresponding to a difference between a feedback voltage corresponding to a current flow to the discharge lamp and a reference voltage. Such inverter driver controls to gradually increase the output voltage of the inverter in the soft start period by setting the voltage of the capacitor as a voltage corresponding to the control signal.

摘要翻译： 负载驱动器包括逆变器和逆变器驱动器。 反相器根据占空比使用至少一个用于切换的第一开关将输入电压转换成放电灯的驱动电压，并且逆变器驱动器控制逆变器。 逆变器驱动器使用电容器的电压和具有以预定频率重复的波形的控制信号来控制占空比。 电容器通过与对应于与放电灯的电流对应的反馈电压和参考电压之间的差值的电流进行充电和放电。 这种逆变器驱动器通过将电容器的电压设置为与控制信号相对应的电压来控制在软启动时段逐渐增加逆变器的输出电压。

公开(公告)号：US08760082B2

公开(公告)日：2014-06-24

申请号：US13225953

申请日：2011-09-06

申请人： Seunguk Yang ,  Byunghak Ahn ,  Hak-Hee Lee ,  Eung-Woo Lee

发明人： Seunguk Yang ,  Byunghak Ahn ,  Hak-Hee Lee ,  Eung-Woo Lee

IPC分类号： H05B33/02 ,  H05B37/02

CPC分类号： H05B33/0827 ,  H05B33/0815 ,  Y02B20/346

摘要： The present invention relates to an LED emitting device. The LED emitting device includes: a converter converting an input voltage according to a switching operation of a power source switch to generate at least two output voltages; an LED panel unit including a plurality of LED channels having a plurality of LEDs; a micom board operated by a first output voltage among the at least two output voltages to control the operation of the LED emitting device; a regulator converting a second output voltage among the at least two output voltages into a voltage suitable for the operation of the LED panel unit; and a multi-channel control unit controlling an operation of the regulator according to a lowest minimum voltage among the voltages of a plurality of LED channels and receiving the first output voltage to generate a first feedback voltage VF1.

摘要翻译： 本发明涉及一种LED发光装置。 LED发光装置包括：转换器，根据电源开关的开关操作转换输入电压以产生至少两个输出电压; LED面板单元，其包括具有多个LED的多个LED通道; 所述微板由所述至少两个输出电压中的第一输出电压操作以控制所述LED发射装置的操作; 将所述至少两个输出电压中的第二输出电压转换成适合于所述LED面板单元的操作的电压的调节器; 以及多通道控制单元，其根据多个LED通道的电压中的最低最小电压来控制所述调节器的操作，并接收所述第一输出电压以产生第一反馈电压VF1。

公开(公告)号：US08120337B2

公开(公告)日：2012-02-21

申请号：US12564632

申请日：2009-09-22

申请人： Jin-Hwa Chung ,  Jae-Soon Choi ,  Chan Son ,  Hak-Hee Lee

发明人： Jin-Hwa Chung ,  Jae-Soon Choi ,  Chan Son ,  Hak-Hee Lee

IPC分类号： G05F1/00

CPC分类号： H05B41/2828 ,  H02M1/36

摘要： A load driver includes an inverter and an inverter driver. The inverter converts an input voltage into a driving voltage of a discharge lamp using at least one first switch for switching according to a duty ratio, and the inverter driver controls the inverter. The inverter driver controls the duty ratio using a voltage of a capacitor and a control signal having a waveform that is repeated with a predetermined frequency. The capacitor is charged and discharged by a current corresponding to a difference between a feedback voltage corresponding to a current flow to the discharge lamp and a reference voltage. Such inverter driver controls to gradually increase the output voltage of the inverter in the soft start period by setting the voltage of the capacitor as a voltage corresponding to the control signal.

摘要翻译： 负载驱动器包括逆变器和逆变器驱动器。 反相器根据占空比使用至少一个用于切换的第一开关将输入电压转换成放电灯的驱动电压，并且逆变器驱动器控制逆变器。 逆变器驱动器使用电容器的电压和具有以预定频率重复的波形的控制信号来控制占空比。 电容器通过与对应于与放电灯的电流对应的反馈电压和参考电压之间的差值的电流进行充电和放电。 这种逆变器驱动器通过将电容器的电压设置为与控制信号相对应的电压来控制在软启动时段逐渐增加逆变器的输出电压。

公开(公告)号：US08120275B2

公开(公告)日：2012-02-21

申请号：US12510511

申请日：2009-07-28

申请人： Jae-Soon Choi ,  Dong-Hun Lee ,  Hak-Hee Lee

发明人： Jae-Soon Choi ,  Dong-Hun Lee ,  Hak-Hee Lee

IPC分类号： G05F1/00 ,  H05B37/02 ,  H05B39/04 ,  H05B41/36

CPC分类号： H05B41/2828 ,  H05B41/2824 ,  Y02B20/186

摘要： The present invention relates to an inverter and a lamp driver having the same. The inverter includes a first switch having a first body diode, a second switch having a second body diode, a transformer including a first side coil in which a first current and a first voltage are generated according to switching operations of the first switch and the second switch and a second side coil having a predetermined winding ratio with respect to the first side coil, and a controller for controlling each switching operation of the first switch and the second switch. The controller turns on one of the first switch and the second switch corresponding to one of the first body diode and the second body diode, and a current flows through the first switch and the second switch during a dead time.

摘要翻译： 本发明涉及一种逆变器及具有该逆变器的灯驱动器。 逆变器包括具有第一体二极管的第一开关，具有第二体二极管的第二开关，包括第一侧线圈的变压器，其中根据第一开关和第二开关的开关操作产生第一电流和第一电压 开关和相对于第一侧线圈具有预定的卷绕比的第二侧线圈，以及用于控制第一开关和第二开关的每个切换操作的控制器。 控制器接通与第一体二极管和第二体二极管中的一个对应的第一开关和第二开关中的一个，并且在死区时间内电流流过第一开关和第二开关。

公开(公告)号：US20100019688A1

公开(公告)日：2010-01-28

申请号：US12510511

申请日：2009-07-28

申请人： Jae-Soon Choi ,  Dong-Hun Lee ,  Hak-Hee Lee

发明人： Jae-Soon Choi ,  Dong-Hun Lee ,  Hak-Hee Lee

IPC分类号： H05B41/36

CPC分类号： H05B41/2828 ,  H05B41/2824 ,  Y02B20/186

摘要： The present invention relates to an inverter and a lamp driver having the same. The inverter includes a first switch having a first body diode, a second switch having a second body diode, a transformer including a first side coil in which a first current and a first voltage are generated according to switching operations of the first switch and the second switch and a second side coil having a predetermined winding ratio with respect to the first side coil, and a controller for controlling each switching operation of the first switch and the second switch. The controller turns on one of the first switch and the second switch corresponding to one of the first body diode and the second body diode, and a current flows through the first switch and the second switch during a dead time.

摘要翻译： 本发明涉及一种逆变器及具有该逆变器的灯驱动器。 逆变器包括具有第一体二极管的第一开关，具有第二体二极管的第二开关，包括第一侧线圈的变压器，其中根据第一开关和第二开关的开关操作产生第一电流和第一电压 开关和相对于第一侧线圈具有预定的卷绕比的第二侧线圈，以及用于控制第一开关和第二开关的每个切换操作的控制器。 控制器接通与第一体二极管和第二体二极管中的一个相对应的第一开关和第二开关中的一个，并且在死区时间内电流流过第一开关和第二开关。