公开(公告)号：US08335061B2

公开(公告)日：2012-12-18

申请号：US12716683

申请日：2010-03-03

申请人： Gwan-Bon Koo ,  Hyun-Chul Eom ,  Jin-Tae Kim

发明人： Gwan-Bon Koo ,  Hyun-Chul Eom ,  Jin-Tae Kim

IPC分类号： H02H7/00 ,  H02H9/00 ,  G05F1/10 ,  H02J3/12 ,  H02H7/122

CPC分类号： H02H3/003 ,  H02M1/32 ,  H02M3/3376 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491 ,  Y02P80/112

摘要： The present invention relates to a protection circuit, a resonance converter having the same, and a protection method thereof.A resonance converter having high-side and low-side switches senses a current flowing through the low-side switch and determines a zero voltage switching failure by using a width of a current flowing to a negative direction of the low-side switch.

摘要翻译： 本发明涉及保护电路，具有该保护电路的谐振转换器及其保护方法。 具有高侧和低侧开关的谐振转换器感测流过低侧开关的电流，并且通过使用流向低侧开关的负方向的电流的宽度来确定零电压开关故障。

公开(公告)号：US07848124B2

公开(公告)日：2010-12-07

申请号：US12079184

申请日：2008-03-25

申请人： Hang-Seok Choi ,  Young-Bae Park ,  Gwan-Bon Koo ,  Jin-Tae Kim

发明人： Hang-Seok Choi ,  Young-Bae Park ,  Gwan-Bon Koo ,  Jin-Tae Kim

IPC分类号： H02H7/122 ,  H02M3/335

CPC分类号： H02M1/32 ,  H02M1/36 ,  H02M3/33523

摘要： A converter and a driving method thereof are provided. The converter can determine the output short state of the converter after the soft start is finished by using a detection signal that corresponds to an input signal while a switched is turned on and that corresponds to an output signal while the switch is turned off, so as to convert the input signal into the output signal according to a switching operation of the switch. The converter can determine the overload state of the converter by using a feedback voltage corresponding to the output signal, and terminate the switching operation when the converter is in an output short state or overload state.

摘要翻译： 提供A转换器及其驱动方法。 转换器可以通过在切换开启时使用与输入信号相对应的检测信号，并且在开关断开时对应于输出信号，在软启动完成之后确定转换器的输出短路状态，从而 根据开关的切换动作将输入信号转换为输出信号。 转换器可以通过使用与输出信号相对应的反馈电压来确定转换器的过载状态，并且在转换器处于输出短路状态或过载状态时终止开关操作。

公开(公告)号：US20080247206A1

公开(公告)日：2008-10-09

申请号：US11985159

申请日：2007-11-14

申请人： Young-Bae Park ,  Jin-Tae Kim ,  Gwan-Bon Koo

发明人： Young-Bae Park ,  Jin-Tae Kim ,  Gwan-Bon Koo

IPC分类号： H02M7/06 ,  H01F27/28

CPC分类号： H02M3/33523 ,  H01F27/362 ,  H01F27/38 ,  H02M2001/0064

摘要： An energy transfer element includes a first winding coupled to an input circuit and a second winding coupled to an output circuit. The first winding has a first unit and a second unit, and the second winding is wound between the first unit of the first winding and the second unit of the first winding. The energy transfer element further includes a third winding provided between the first unit of the first winding and the second winding. The third winding is used to supply a bias voltage of the input circuit, and a winding width of the third winding is greater than a winding width of the first unit of the first winding and a width of the second winding.

摘要翻译： 能量传递元件包括耦合到输入电路的第一绕组和耦合到输出电路的第二绕组。 第一绕组具有第一单元和第二单元，并且第二绕组缠绕在第一绕组的第一单元和第一绕组的第二单元之间。 能量传递元件还包括设置在第一绕组的第一单元和第二绕组之间的第三绕组。 第三绕组用于提供输入电路的偏置电压，第三绕组的绕组宽度大于第一绕组的第一单元的绕组宽度和第二绕组的宽度。

公开(公告)号：US07960952B2

公开(公告)日：2011-06-14

申请号：US12148314

申请日：2008-04-18

申请人： Gwan-Bon Koo ,  Jin-Tae Kim ,  Yoo-Woong Hwang ,  Kyung Oun Jang ,  Jin-Woo Moon ,  Sang-Hyun Lee

发明人： Gwan-Bon Koo ,  Jin-Tae Kim ,  Yoo-Woong Hwang ,  Kyung Oun Jang ,  Jin-Woo Moon ,  Sang-Hyun Lee

IPC分类号： G05F1/59 ,  H02M3/335

CPC分类号： H02M3/33523 ,  Y10T307/747

摘要： A switching mode power supply and a switch thereof are provided. The switch includes a plurality of first transistors, and a second transistor that is turned on/off by a control signal that is equal to that of the plurality of first transistors and in which a second current corresponding to a first current flowing to the plurality of first transistors flows, wherein a ratio of the first current to the second current sequentially changes from a time point at which the second transistor is turned on. Therefore, a switching mode power supply and a switch thereof that can always uniformly sustain a maximum limit current flowing to the switch regardless of a level of an input voltage without including a special additional circuit can be provided.

摘要翻译： 提供了开关电源及其开关。 该开关包括多个第一晶体管，以及通过与多个第一晶体管的控制信号相等的控制信号导通/截止的第二晶体管，其中与流过多个第一晶体管的第一电流对应的第二电流 第一晶体管流动，其中第一电流与第二电流的比率从第二晶体管导通的时间点顺序地变化。 因此，可以提供一种开关模式电源及其开关，其可以始终均匀地维持流过开关的最大限制电流，而不考虑输入电压的电平而不包括特殊附加电路。

公开(公告)号：US07881083B2

公开(公告)日：2011-02-01

申请号：US12154207

申请日：2008-05-21

申请人： Jin-Tae Kim ,  Gwan-Bon Koo ,  Hang-Seok Choi

发明人： Jin-Tae Kim ,  Gwan-Bon Koo ,  Hang-Seok Choi

IPC分类号： H02M7/44

CPC分类号： H02M3/33523

摘要： A switch control device, a switch control method, and a converter using the same are disclosed. The converter includes: a switch; an energy transfer element that converts input energy into output energy according to a switching operation of the switch; and a switch control device that generates a first signal, which is maintained at a first level during a first interval starting from a first time at which the switch is turned on by using a feedback signal corresponding to the output energy and is then gradually lowered from the first level to the feedback signal during a second interval, and controls the switching operation of the switch by using a second signal corresponding to a current flowing at the switch and the first signal. A malfunction due to an LEC can be effectively prevented, and the converter and the converter controller can be implemented to be compact and low-priced.

摘要翻译： 公开了一种开关控制装置，开关控制方法和使用该控制装置的转换器。 转换器包括：开关; 能量传递元件，其根据开关的切换操作将输入能量转换为输出能量; 以及开关控制装置，其通过使用与输出能量相对应的反馈信号来生成第一信号，该第一信号在从开关接通的第一时间开始的第一间隔期间保持在第一电平，然后逐渐从 在第二间隔期间到反馈信号的第一电平，并且通过使用对应于在开关处流动的电流的第二信号和第一信号来控制开关的开关操作。 可以有效地防止LEC引起的故障，并且转换器和转换器控制器可以实现为紧凑且价格低廉。

公开(公告)号：US20090231894A1

公开(公告)日：2009-09-17

申请号：US12258157

申请日：2008-10-24

申请人： Sang-Cheol Moon ,  Gwan-Bon Koo ,  Jin-Tae Kim ,  Young-Bae Park

发明人： Sang-Cheol Moon ,  Gwan-Bon Koo ,  Jin-Tae Kim ,  Young-Bae Park

IPC分类号： H02M7/04

CPC分类号： H02M3/33507

摘要： In a power converter, a primary coil receives an input voltage, and a switch includes a first electrode, a second electrode coupled to the primary coil, and a control electrode. An output unit includes a secondary coil, and outputs an output voltage. The primary coil and the secondary coil form a transformer, and the input voltage is converted to the output voltage by the transformer. A controller receives a sensing voltage corresponding to a switch current flowing between the first electrode and the second electrode of the switch, detects a valley point of a voltage between the first electrode and the second electrode of the switch based on the sensing voltage, and transmits a control signal to the control electrode of the switch in accordance with the valley point,

摘要翻译： 在功率转换器中，初级线圈接收输入电压，并且开关包括第一电极，耦合到初级线圈的第二电极和控制电极。 输出单元包括次级线圈，并输出输出电压。 初级线圈和次级线圈形成变压器，输入电压由变压器转换成输出电压。 控制器接收对应于在开关的第一电极和第二电极之间流动的开关电流的感测电压，基于感测电压检测开关的第一电极和第二电极之间的电压的谷点，并且传输 根据谷点向开关的控制电极施加控制信号，

公开(公告)号：US20080259659A1

公开(公告)日：2008-10-23

申请号：US12079184

申请日：2008-03-25

申请人： Hang-Seok Choi ,  Young-Bae Park ,  Gwan-Bon Koo ,  Jin-Tae Kim

发明人： Hang-Seok Choi ,  Young-Bae Park ,  Gwan-Bon Koo ,  Jin-Tae Kim

IPC分类号： H02H7/10

CPC分类号： H02M1/32 ,  H02M1/36 ,  H02M3/33523

摘要： A converter and a driving method thereof are provided. The converter can determine the output short state of the converter after the soft start is finished by using a detection signal that corresponds to an input signal while a switched is turned on and that corresponds to an output signal while the switch is turned off, so as to convert the input signal into the output signal according to a switching operation of the switch. The converter can determine the overload state of the converter by using a feedback voltage corresponding to the output signal, and terminate the switching operation when the converter is in an output short state or overload state.

摘要翻译： 提供A转换器及其驱动方法。 转换器可以通过在切换开启时使用与输入信号相对应的检测信号，并且在开关断开时对应于输出信号，在软启动完成之后确定转换器的输出短路状态，从而 根据开关的切换动作将输入信号转换为输出信号。 转换器可以通过使用与输出信号相对应的反馈电压来确定转换器的过载状态，并且在转换器处于输出短路状态或过载状态时终止开关操作。

公开(公告)号：US08670252B2

公开(公告)日：2014-03-11

申请号：US13438777

申请日：2012-04-03

申请人： Jin-Tae Kim ,  Gwan-Bon Koo ,  Hang Seok Choi

发明人： Jin-Tae Kim ,  Gwan-Bon Koo ,  Hang Seok Choi

IPC分类号： H02M1/36

CPC分类号： H02M3/33523 ,  H02M1/36 ,  Y10S323/901

摘要： Disclosed are a switch controller, a switch control method, a converter using the same, and a driving method thereof. A first voltage is generated by using a voltage that is input to an input terminal, and a soft start signal is generated by using the first voltage during a soft start duration. A switching operation is controlled by using the soft start signal during the soft start duration.

摘要翻译： 公开了一种开关控制器，开关控制方法，使用该开关控制器的转换器及其驱动方法。 通过使用输入到输入端子的电压来产生第一电压，并且在软启动持续时间期间通过使用第一电压产生软启动信号。 在软启动持续时间期间通过使用软启动信号来控制切换操作。

公开(公告)号：US08174269B2

公开(公告)日：2012-05-08

申请号：US12623127

申请日：2009-11-20

申请人： Hyun-Chul Eom ,  Jin-Tae Kim ,  Gwan-Bon Koo

发明人： Hyun-Chul Eom ,  Jin-Tae Kim ,  Gwan-Bon Koo

IPC分类号： G01R31/02 ,  H05B37/02

CPC分类号： H02M1/36 ,  G01R31/3277 ,  G01R31/40 ,  H05B41/2856

摘要： The present invention relates to an abnormal switching monitoring device and method. A time point when a high-side switch in which a first electrode receives an input voltage is turned on, a time point when a low-side switch that is connected to a second electrode of the high-side switch is turned on, a time point when a charge current begins to flow to a bootstrap circuit, and a time point when a charge current stops flowing to the bootstrap circuit are compared so as to determine whether or not non-zero voltage switching occurs. The bootstrap circuit supplies an operating current to a gate driver controlling a switching operation of the high-side switch.

摘要翻译： 本发明涉及一种异常切换监视装置及方法。 当第一电极接收到输入电压的高侧开关接通时，连接到高侧开关的第二电极的低侧开关接通的时间点被接通，时间 当充电电流开始流向自举电路时，以及充电电流停止流向自举电路的时间点进行比较，以便确定是否发生非零电压切换。 自举电路向控制高侧开关的开关操作的栅极驱动器提供工作电流。

公开(公告)号：US08144486B2

公开(公告)日：2012-03-27

申请号：US12258157

申请日：2008-10-24

申请人： Sang-Cheol Moon ,  Gwan-Bon Koo ,  Jin-Tae Kim ,  Young-Bae Park

发明人： Sang-Cheol Moon ,  Gwan-Bon Koo ,  Jin-Tae Kim ,  Young-Bae Park

IPC分类号： H02M3/335

CPC分类号： H02M3/33507

摘要： In a power converter, a primary coil receives an input voltage, and a switch includes a first electrode, a second electrode coupled to the primary coil, and a control electrode. An output unit includes a secondary coil, and outputs an output voltage. The primary coil and the secondary coil form a transformer, and the input voltage is converted to the output voltage by the transformer. A controller receives a sensing voltage corresponding to a switch current flowing between the first electrode and the second electrode of the switch, detects a valley point of a voltage between the first electrode and the second electrode of the switch based on the sensing voltage, and transmits a control signal to the control electrode of the switch in accordance with the valley point.

摘要翻译： 在功率转换器中，初级线圈接收输入电压，并且开关包括第一电极，耦合到初级线圈的第二电极和控制电极。 输出单元包括次级线圈，并输出输出电压。 初级线圈和次级线圈形成变压器，输入电压由变压器转换成输出电压。 控制器接收对应于在开关的第一电极和第二电极之间流动的开关电流的感测电压，基于感测电压检测开关的第一电极和第二电极之间的电压的谷点，并且传输 控制信号根据谷点到开关的控制电极。