公开(公告)号：US08854837B2

公开(公告)日：2014-10-07

申请号：US13220188

申请日：2011-08-29

申请人： Hyo Young Kim ,  Jong Rak Kim ,  Sung Hun Oh ,  Jin Hwan Kim

发明人： Hyo Young Kim ,  Jong Rak Kim ,  Sung Hun Oh ,  Jin Hwan Kim

IPC分类号： H02M3/335 ,  H02M1/34

CPC分类号： H02M3/335 ,  H02M2001/346 ,  Y02B70/1491

摘要： There is provided a boost converter capable of reducing voltage stress within each element thereof, without using a separate loss snubber circuit, by clamping a voltage applied to an output diode to correspond to a difference between an input voltage and an output voltage. The boost converter includes a transformer including a primary winding receiving an input power and a secondary winding electromagnetically coupled to the primary winding and having a preset turn ratio therewith; a switching unit switching the input power transferred to the primary winding on and off according to a preset duty ratio; a stabilizing unit including an output diode rectifying the power outputted from the secondary winding to stabilize an output power; and a clamping unit clamping a voltage applied to the output diode to correspond to a difference between the input power and the output power during a switching on operation of the switching unit.

摘要翻译： 提供了一种升压转换器，其能够通过钳位施加到输出二极管的电压以对应于输入电压和输出电压之间的差来减小其每个元件内的电压应力，而不使用单独的损耗缓冲电路。 升压转换器包括变压器，其包括接收输入功率的初级绕组和与该初级绕组电磁耦合并具有预设的匝数比的次级绕组; 开关单元根据预设的占空比将传递到初级绕组的输入功率接通和断开; 稳定单元，其包括对从次级绕组输出的功率进行整流以稳定输出功率的输出二极管; 以及钳位单元，钳位施加到输出二极管的电压，以对应于在开关单元的接通操作期间输入功率和输出功率之间的差。

公开(公告)号：US08125161B2

公开(公告)日：2012-02-28

申请号：US12591737

申请日：2009-11-30

申请人： Hyo Young Kim ,  Sung Hun Oh ,  Jin Hwan Kim ,  Jong Rak Kim

发明人： Hyo Young Kim ,  Sung Hun Oh ,  Jin Hwan Kim ,  Jong Rak Kim

IPC分类号： G05F1/00

CPC分类号： H05B33/0827 ,  H05B33/0818 ,  Y02B20/347

摘要： The present invention relates to a light emitting device (LED) driving apparatus that constantly maintains the average current flowing onto a plurality of channels. The light emitting device (LED) driving apparatus includes: a LED light source unit in which at least one LED channel is connected in parallel; at least one current detector that is disposed on a low end of a LED channel of the LED light source unit to detect the current flowing onto respective LED channels; at least one channel current controller that generates control signal controlling the average current of the channels by comparing current detected from the channels with reference wave; and a switching element that controls the average current of the LED channels in a PWM scheme according to the control signals.

摘要翻译： 本发明涉及持续保持流过多个通道的平均电流的发光装置（LED）驱动装置。 发光装置（LED）驱动装置包括：LED光源单元，其中至少一个LED通道并联连接; 至少一个电流检测器，设置在LED光源单元的LED通道的低端，以检测流到各个LED通道的电流; 至少一个通道电流控制器，其通过将从所述通道检测到的电流与参考波相比较来产生控制所述通道的平均电流的控制信号; 以及开关元件，其根据控制信号控制PWM方案中的LED通道的平均电流。

公开(公告)号：US20080137248A1

公开(公告)日：2008-06-12

申请号：US11946700

申请日：2007-11-28

申请人： Hyo Young Kim ,  Sung Hun Oh ,  Jong Rak Kim

发明人： Hyo Young Kim ,  Sung Hun Oh ,  Jong Rak Kim

IPC分类号： H02H3/02 ,  H05B37/02 ,  H05B41/16

CPC分类号： H05B41/2827 ,  G09G3/3406 ,  G09G2330/08

摘要： There is provided a backlight unit that determines whether a lamp performs an abnormal operation by detecting a voltage that is induced in a power conversion transformer without using a complicated and expensive detection circuit. A backlight unit having a protection circuit using induced voltage detection according to an aspect of the invention includes an inverter part including a primary coil receiving power and at least one secondary coil converting the power from the primary coil to AC power set beforehand, a lamp part including at least one lamp receiving the AC power from the inverter part to emit light, a detection part including conductors detecting voltages electromagnetically induced in the secondary coil, and an abnormality determining part comparing detection voltages from the detection part with a reference voltage set beforehand.

摘要翻译： 提供了一种背光单元，其通过在不使用复杂且昂贵的检测电路的情况下检测在电力变换变压器中感应的电压来确定灯是否执行异常操作。 具有根据本发明的一个方面的具有使用感应电压检测的保护电路的背光单元包括：反相器部分，包括初级线圈接收功率和至少一个次级线圈，其将来自初级线圈的功率转换成预先设定的AC功率;灯部分 包括接收来自逆变器部分的交流电力以发光的至少一个灯;检测部分，包括检测次级线圈中电磁感应的电压的导体;以及异常确定部分，将来自检测部分的检测电压与预先设定的参考电压进行比较。

公开(公告)号：US07940502B2

公开(公告)日：2011-05-10

申请号：US12191122

申请日：2008-08-13

申请人： Hyo Young Kim ,  Jong Rak Kim ,  Sung Hun Oh

发明人： Hyo Young Kim ,  Jong Rak Kim ,  Sung Hun Oh

IPC分类号： H02H3/00

CPC分类号： H05B41/282 ,  Y02B20/183

摘要： There is provided a backlight unit having a protection circuit using a center-tap, the backlight unit including: a current balancing unit including a plurality of primary coils individually transmitting the lamp driving power from an inverter unit to the lamps, and a plurality of secondary coils each formed of one conductor having a center-tap, and receiving an electromagnetically induced voltage from each of the plurality of primary coils, the one end and the center-tap of each of the plurality of secondary coils connected in series with the one end and the center-tap of the neighboring secondary coil to form at least one closed loop and maintain current transmitted to each of the lamps balanced; a sensing unit sensing a variation in current of the closed loop and a variation in current of the primary coil from the current balancing unit; and a determination unit determining whether each of the lamps performs an abnormal operation or not.

摘要翻译： 提供一种具有使用中心抽头的保护电路的背光单元，所述背光单元包括：电流平衡单元，包括将来自逆变器单元的灯驱动功率单独地发送到灯的多个初级线圈，以及多个次级 每个由具有中心抽头的一个导体形成的线圈，并且从多个初级线圈中的每一个接收电磁感应电压，所述多个次级线圈中的每一个的一端和中心抽头与一端串联连接 以及相邻次级线圈的中心抽头以形成至少一个闭合回路并保持传输到每个灯平衡的电流; 感测单元，感测闭环电流的变化和初级线圈与电流平衡单元的电流变化; 以及确定单元，确定每个灯是否执行异常操作。

公开(公告)号：US07612974B2

公开(公告)日：2009-11-03

申请号：US11946700

申请日：2007-11-28

申请人： Hyo Young Kim ,  Sung Hun Oh ,  Jong Rak Kim

发明人： Hyo Young Kim ,  Sung Hun Oh ,  Jong Rak Kim

IPC分类号： H02H3/08 ,  H02H9/02

CPC分类号： H05B41/2827 ,  G09G3/3406 ,  G09G2330/08

摘要： There is provided a backlight unit that determines whether a lamp performs an abnormal operation by detecting a voltage that is induced in a power conversion transformer without using a complicated and expensive detection circuit. A backlight unit having a protection circuit using induced voltage detection according to an aspect of the invention includes an inverter part including a primary coil receiving power and at least one secondary coil converting the power from the primary coil to AC power set beforehand, a lamp part including at least one lamp receiving the AC power from the inverter part to emit light, a detection part including conductors detecting voltages electromagnetically induced in the secondary coil, and an abnormality determining part comparing detection voltages from the detection part with a reference voltage set beforehand.

摘要翻译： 提供了一种背光单元，其通过在不使用复杂且昂贵的检测电路的情况下检测在电力变换变压器中感应的电压来确定灯是否执行异常操作。 具有根据本发明的一个方面的具有使用感应电压检测的保护电路的背光单元包括：反相器部分，包括初级线圈接收功率和至少一个次级线圈，其将来自初级线圈的功率转换成预先设定的AC功率;灯部分 包括接收来自逆变器部分的交流电力以发光的至少一个灯;检测部分，包括检测次级线圈中电磁感应的电压的导体;以及异常确定部分，将来自检测部分的检测电压与预先设定的参考电压进行比较。

公开(公告)号：US20100320921A1

公开(公告)日：2010-12-23

申请号：US12591737

申请日：2009-11-30

申请人： Hyo Young Kim ,  Sung Hun Oh ,  Jin Hwan Kim ,  Jong Rak Kim

发明人： Hyo Young Kim ,  Sung Hun Oh ,  Jin Hwan Kim ,  Jong Rak Kim

IPC分类号： H05B37/02

CPC分类号： H05B33/0827 ,  H05B33/0818 ,  Y02B20/347

摘要： The present invention relates to a light emitting device (LED) driving apparatus that constantly maintains the average current flowing onto a plurality of channels. The light emitting device (LED) driving apparatus includes: a LED light source unit in which at least one LED channel is connected in parallel; at least one current detector that is disposed on a low end of a LED channel of the LED light source unit to detect the current flowing onto respective LED channels; at least one channel current controller that generates control signal controlling the average current of the channels by comparing current detected from the channels with reference wave; and a switching element that controls the average current of the LED channels in a PWM scheme according to the control signals.

摘要翻译： 本发明涉及持续保持流过多个通道的平均电流的发光装置（LED）驱动装置。 发光装置（LED）驱动装置包括：LED光源单元，其中至少一个LED通道并联连接; 至少一个电流检测器，设置在LED光源单元的LED通道的低端，以检测流到各个LED通道的电流; 至少一个通道电流控制器，其通过将从所述通道检测到的电流与参考波相比较来产生控制所述通道的平均电流的控制信号; 以及开关元件，其根据控制信号控制PWM方案中的LED通道的平均电流。

公开(公告)号：US20090154043A1

公开(公告)日：2009-06-18

申请号：US12191122

申请日：2008-08-13

申请人： Hyo Young KIM ,  Jong Rak Kim ,  Sung Hun Oh

发明人： Hyo Young KIM ,  Jong Rak Kim ,  Sung Hun Oh

IPC分类号： H02H3/00

CPC分类号： H05B41/282 ,  Y02B20/183

摘要： There is provided a backlight unit having a protection circuit using a center-tap, the backlight unit including: a current balancing unit including a plurality of primary coils individually transmitting the lamp driving power from an inverter unit to the lamps, and a plurality of secondary coils each formed of one conductor having a center-tap, and receiving an electromagnetically induced voltage from each of the plurality of primary coils, the one end and the center-tap of each of the plurality of secondary coils connected in series with the one end and the center-tap of the neighboring secondary coil to form at least one closed loop and maintain current transmitted to each of the lamps balanced; a sensing unit sensing a variation in current of the closed loop and a variation in current of the primary coil from the current balancing unit; and a determination unit determining whether each of the lamps performs an abnormal operation or not.

摘要翻译： 提供一种具有使用中心抽头的保护电路的背光单元，所述背光单元包括：电流平衡单元，包括将来自逆变器单元的灯驱动功率单独地发送到灯的多个初级线圈，以及多个次级 每个由具有中心抽头的一个导体形成的线圈，并且从多个初级线圈中的每一个接收电磁感应电压，所述多个次级线圈中的每一个的一端和中心抽头与一端串联连接 以及相邻次级线圈的中心抽头以形成至少一个闭合回路并保持传输到每个灯平衡的电流; 感测单元，感测闭环电流的变化和初级线圈与电流平衡单元的电流变化; 以及确定单元，确定每个灯是否执行异常操作。

公开(公告)号：US20110050105A1

公开(公告)日：2011-03-03

申请号：US12640259

申请日：2009-12-17

申请人： Won Sik CHONG ,  Jong Rak Kim ,  Kyoung Ho Yoon ,  Yoon Seok Seo

发明人： Won Sik CHONG ,  Jong Rak Kim ,  Kyoung Ho Yoon ,  Yoon Seok Seo

IPC分类号： H05B37/02

CPC分类号： H05B41/2827

摘要： There are provided a current balance circuit having a protection function that prevents the current balance circuit from being damaged during a preset time period by maintaining a constant level of power being supplied to the lamp, and a power supply. The current balance circuit having the protection function includes a current balance unit maintaining current balance of lamp driving power supplied to a lamp unit including a plurality of lamps, and a protection unit detecting the lamp driving power supplied to the lamp unit from the current balance unit, cutting-off the lamp driving power after a preset time period when the lamp operates abnormally, and controlling a voltage level of the lamp driving power to a preset reference voltage level or lower during the preset time period.

摘要翻译： 提供了一种具有保护功能的电流平衡电路，其通过保持向灯供电的恒定电平和电源来防止当前平衡电路在预设时间段内被损坏。 具有保护功能的电流平衡电路包括：电流平衡单元，保持提供给包括多个灯的灯单元的灯驱动功率的电流平衡;以及保护单元，从当前平衡单元检测提供给灯单元的灯驱动电力 在灯工作异常的预设时间段之后切断灯的驱动电力，并且在预设时间段内将灯驱动功率的电压电平控制在预设的参考电压电平以下。

公开(公告)号：US07616086B2

公开(公告)日：2009-11-10

申请号：US11964521

申请日：2007-12-26

申请人： Gie Hyoun Kweon ,  Sug Chin Sakong ,  Chung Wook Roh ,  Sang Kyoo Han ,  Sung Soo Hong ,  Jong Rak Kim

发明人： Gie Hyoun Kweon ,  Sug Chin Sakong ,  Chung Wook Roh ,  Sang Kyoo Han ,  Sung Soo Hong ,  Jong Rak Kim

IPC分类号： H01F27/30

CPC分类号： H01F3/10 ,  H01F27/29 ,  H01F27/306 ,  H01F27/325

摘要： There is provided an integrated type transformer that reduces the volume by integrating a plurality of transformers transmitting power for driving a plurality of lamps in an inverter circuit for an LCD into one transformer structure. An integrated type transformer according to an aspect of the invention includes a bobbin unit including a bobbin body having a predetermined length and a through hole therein in a longitudinal direction of the bobbin unit, and a core unit including an inner core inserted into the through hole of the bobbin unit, and an outer core formed along one surface in the longitudinal direction among outer circumferential surfaces of the bobbin unit and electromagnetically coupled to the inner core to form one magnetic path.

摘要翻译： 提供了一种集成型变压器，通过将用于驱动LCD的逆变器电路中的多个灯的功率的多个变压器集成成一个变压器结构来减小体积。 根据本发明的一个方面的集成型变压器包括：线轴单元，其包括具有预定长度的线轴体和沿着所述线轴单元的纵向的通孔，以及芯单元，所述芯单元包括插入所述通孔中的内芯 以及在所述筒管单元的外周面之中沿着长度方向的一个表面形成的外芯，并且与所述内芯电磁耦合以形成一个磁路。

公开(公告)号：US20080137655A1

公开(公告)日：2008-06-12

申请号：US11980169

申请日：2007-10-30

申请人： Sun Me Kim ,  Kyoung-Soon Kang ,  Dong-Yong Kwak ,  Hae Sook Kim ,  Jong Rak Kim ,  Jeong-Jong Lee ,  Wang Bong Lee ,  Sang Kwon Shin

发明人： Sun Me Kim ,  Kyoung-Soon Kang ,  Dong-Yong Kwak ,  Hae Sook Kim ,  Jong Rak Kim ,  Jeong-Jong Lee ,  Wang Bong Lee ,  Sang Kwon Shin

IPC分类号： H04L12/56

CPC分类号： H04L47/782 ,  H04L47/70

摘要： Provided is a method of resource management and call admission control in an access network in a hierarchical manner.The method of resource management and call admission control in an access network includes: (a) collecting resource information on all of devices constituting the access network and hierarchically constructing the resource information on the access network; (b) when a user requests a connection to the access network, hierarchically extracting position information on the access network from the resource information and connecting the extracted position information to link information in the hierarchically constructed resource information; (c) when a user who succeeds in connecting requests call admission control for an IP communication service, determining an availability of the resources of the hierarchically constructed position information; and (d) when the availability is certified, allocating a band required to the IP communication service to the link information and a part of a margin band of a service class to which the user belongs to respond to the call admission control request.

摘要翻译： 提供了一种以分级方式在接入网中进行资源管理和呼叫准入控制的方法。 接入网中资源管理和呼叫准入控制的方法包括：（a）在构成接入网的所有设备上收集资源信息，并在接入网上分层构建资源信息; （b）当用户请求连接到接入网络时，从资源信息分层提取接入网络上的位置信息，并将所提取的位置信息连接到分层构造的资源信息中的链路信息; （c）当成功连接请求的用户呼叫用于IP通信服务的接纳控制时，确定层次构造的位置信息的资源的可用性; 以及（d）当可用性被认证时，将IP通信服务所需的频带分配给用户所属的链路信息和服务类别的边缘带的一部分以响应于呼叫许可控制请求。