公开(公告)号：US08711581B2

公开(公告)日：2014-04-29

申请号：US12361785

申请日：2009-01-29

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

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

IPC分类号： H02M3/335

CPC分类号： H02M3/33592 ,  Y02B70/1433 ,  Y02B70/1475

摘要： A synchronous rectifier network unit and synchronous rectifying method. The synchronous rectifier network unit includes a first body diode to which a first current flows at a first time when the first current flows to a first coil, and a first transistor which is turned on after the first body diode is conducted, and to which the first current flows, and it rectifies the first current by differently controlling the turn-off time of the first transistor according to the first current.

摘要翻译： 同步整流网络单元和同步整流方法。 同步整流网络单元包括第一体二极管，第一电流在第一电流流向第一线圈的第一时间流过第一体二极管;以及第一晶体管，其在第一体二极管导通之后导通， 第一电流流动，并且通过根据第一电流不同地控制第一晶体管的截止时间来整流第一电流。

公开(公告)号：US08339815B2

公开(公告)日：2012-12-25

申请号：US12788144

申请日：2010-05-26

申请人： Kwang-Il Lee ,  Jin-Tae Kim ,  Gwan-Bon Koo

发明人： Kwang-Il Lee ,  Jin-Tae Kim ,  Gwan-Bon Koo

IPC分类号： H02M3/335

CPC分类号： H02M3/33523

摘要： Ripple of an input voltage is used to modulate a switching operation frequency of a switch mode power supply. A sensing voltage corresponding to the input voltage is received, a current ripple that is proportional to a difference between a peak value of the sensing voltage and the sensing voltage is generated, and a modulation control signal that is variable by the current ripple is generated. A switching frequency is modulated using an oscillator signal that is variable by the modulation control signal, and reduces the output voltage ripple.

摘要翻译： 使用输入电压波纹来调制开关模式电源的开关操作频率。 接收对应于输入电压的感测电压，产生与感测电压的峰值和感测电压之间的差成比例的电流纹波，并且产生由电流纹波变化的调制控制信号。 使用由调制控制信号变化的振荡器信号来调制开关频率，并且降低输出电压纹波。

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：US08259471B2

公开(公告)日：2012-09-04

申请号：US12424195

申请日：2009-04-15

申请人： Shanmei Li ,  Jin-Tae Kim ,  Gwan-Bon Koo ,  Gyoung-Soo Park

发明人： Shanmei Li ,  Jin-Tae Kim ,  Gwan-Bon Koo ,  Gyoung-Soo Park

IPC分类号： H02M3/335

CPC分类号： H02M3/33507 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491

摘要： A converter is provided including: a first switch; an energy transmitting element for converting input energy into output energy according to the switching of the first switch; and a switching controller for detecting a time when a voltage between a first terminal and a second terminal of the first switch reaches a valley of a resonance waveform, and actuating the first switch corresponding to one of the detected valleys of the resonance waveform. The switching controller includes: a valley detector for changing the state of the output signal whenever a voltage between a first terminal and a second terminal of the first switch reaches a valley of the resonance waveform; and a PWM controller for actuating the first switch corresponding to an output signal of the valley detector.

摘要翻译： A转换器包括：第一开关; 能量传输元件，用于根据第一开关的切换将输入能量转换为输出能量; 以及开关控制器，用于检测当第一开关的第一端子和第二端子之间的电压达到谐振波形的谷值时的时间，并且启动对应于谐振波形的检测到的一个谷中的第一开关。 开关控制器包括：谷值检测器，用于在第一开关的第一端子和第二端子之间的电压达到谐振波形的谷值时改变输出信号的状态; 以及PWM控制器，用于致动对应于谷值检测器的输出信号的第一开关。

公开(公告)号：US08179172B2

公开(公告)日：2012-05-15

申请号：US12716983

申请日：2010-03-03

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： H03L7/00

CPC分类号： H03K17/22

摘要： Disclosed is an auto-restart circuit and auto-restart method.A main integrated circuit (IC) of a main stage controls a switching operation of at least one power switch. The auto-restart circuit for restarting the main IC detects a switching state of the at least one power switch and detects the state of the main IC. The auto-restart circuit cuts off an external power source voltage supply to the main IC or supplies the external power source voltage to the main IC according to switching state and the state of the main IC.

摘要翻译： 公开了一种自动重起电路和自动重启方法。 主级的主集成电路（IC）控制至少一个电源开关的开关操作。 用于重新启动主IC的自动重启电路检测至少一个电源开关的开关状态并检测主IC的状态。 自动重启电路切断主IC的外部电源电压，或根据主IC的开关状态和状态将外部电源电压提供给主IC。

公开(公告)号：US08169802B2

公开(公告)日：2012-05-01

申请号：US12150226

申请日：2008-04-25

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：US20100321962A1

公开(公告)日：2010-12-23

申请号：US12788144

申请日：2010-05-26

申请人： Kwang-II Lee ,  Jin-Tae Kim ,  Gwan-Bon Koo

发明人： Kwang-II Lee ,  Jin-Tae Kim ,  Gwan-Bon Koo

IPC分类号： H02M3/335

CPC分类号： H02M3/33523

摘要： The present invention relates to switching operation frequency modulation for reducing an output voltage ripple.The present invention uses a ripple of an input voltage so as to modulate a switching operation frequency of a switch mode power supply. A sensing voltage corresponding to the input voltage is received, a current ripple that is proportional to a difference between a peak value of the sensing voltage and the sensing voltage is generated, and a modulation control signal that is variable by the current ripple is generated. The present invention modulates a switching frequency by using an oscillator signal that is variable by the modulation control signal, and reduces the output voltage ripple.

摘要翻译： 本发明涉及用于降低输出电压纹波的开关操作频率调制。 本发明使用输入电压的纹波来调制开关模式电源的开关操作频率。 接收对应于输入电压的感测电压，产生与感测电压的峰值和感测电压之间的差成比例的电流纹波，并且产生由电流纹波变化的调制控制信号。 本发明通过使用由调制控制信号变化的振荡器信号来调制开关频率，并且降低输出电压纹波。

公开(公告)号：US08625308B2

公开(公告)日：2014-01-07

申请号：US12367290

申请日：2009-02-06

申请人： Jin-Tae Kim ,  Kwang-Il Lee ,  Gwan-Bon Koo

发明人： Jin-Tae Kim ,  Kwang-Il Lee ,  Gwan-Bon Koo

IPC分类号： H02M3/335 ,  H02M3/337

CPC分类号： H02M3/33507 ,  H02M2001/0032 ,  Y02B70/16

摘要： A switched-mode power supply includes a soft-burst circuit to minimize or prevent distracting audible noise. The power supply includes a control circuit for controlling switching of an output transistor to deliver a regulated output voltage to a load. The control circuit adjusts the operating frequency of the power supply based on a control signal. The soft-burst circuit discharges a storage device to minimize or prevent audible noise when the control signal reaches a particular level.

摘要翻译： 开关型电源包括软突发电路以最小化或防止分散的可听见的噪声。 电源包括用于控制输出晶体管的开关以将调节的输出电压递送到负载的控制电路。 控制电路基于控制信号来调整电源的工作频率。 当控制信号达到特定水平时，软突发电路放电存储设备以最小化或防止可听见的噪声。