公开(公告)号：US07710085B2

公开(公告)日：2010-05-04

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： G05F1/33 ,  H01F27/32

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：US20090296437A1

公开(公告)日：2009-12-03

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： H02M7/06

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： 提供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：US20080258564A1

公开(公告)日：2008-10-23

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： H01H47/00

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。 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，并且其中对应于流向多个第一晶体管的第一电流的第二电流 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：US08242758B2

公开(公告)日：2012-08-14

申请号：US12344041

申请日：2008-12-24

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

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

IPC分类号： G05F1/00 ,  H02M7/08

CPC分类号： H02M3/1584

摘要： The present invention relates to a converter and a driving method thereof. The converter includes a switch controller that controls switching operation of a master switch and a slave switch. The switch controller detects a center point of one switching operation period of the master switch by using an internal triangular wave having a period that is the same as that of the one switching operation period, and starts the switching operation of the slave switch at the detected point. The internal triangular wave signal has a waveform that varies within one period, and detects a crossing point of an average value of the internal triangular wave and the internal triangular wave as a center point of one switching operation period of the master switch.

摘要翻译： 本发明涉及一种转换器及其驱动方法。 该转换器包括控制主开关和从动开关的开关操作的开关控制器。 开关控制器通过使用具有与一个开关操作期间相同的周期的内部三角波来检测主开关的一个开关操作期间的中心点，并且在检测到的开关操作期间开始从属开关的切换操作 点。 内部三角波信号具有在一个周期内变化的波形，并且检测内部三角波和内部三角波的平均值的交点作为主开关的一个开关操作周期的中心点。

公开(公告)号：US20090206805A1

公开(公告)日：2009-08-20

申请号：US12344041

申请日：2008-12-24

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

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

IPC分类号： G05F1/00

CPC分类号： H02M3/1584

摘要： The present invention relates to a converter and a driving method thereof. The converter includes a switch controller that controls switching operation of a master switch and a slave switch. The switch controller detects a center point of one switching operation period of the master switch by using an internal triangular wave having a period that is the same as that of the one switching operation period, and starts the switching operation of the slave switch at the detected point. The internal triangular wave signal has a waveform that varies within one period, and detects a crossing point of an average value of the internal triangular wave and the internal triangular wave as a center point of one switching operation period of the master switch.

摘要翻译： 本发明涉及一种转换器及其驱动方法。 该转换器包括控制主开关和从动开关的开关操作的开关控制器。 开关控制器通过使用具有与一个开关操作期间相同的周期的内部三角波来检测主开关的一个开关操作期间的中心点，并且在检测到的开关操作期间开始从属开关的切换操作 点。 内部三角波信号具有在一个周期内变化的波形，并且检测内部三角波和内部三角波的平均值的交点作为主开关的一个开关操作周期的中心点。

公开(公告)号：US08194425B2

公开(公告)日：2012-06-05

申请号：US12220768

申请日：2008-07-25

申请人： Young-Bae Park ,  Gwan-Bon Koo

发明人： Young-Bae Park ,  Gwan-Bon Koo

IPC分类号： H02M3/335

CPC分类号： H03K7/06

摘要： The present invention relates to a frequency modulation device and a switching mode power supply using the frequency modulation device. To prevent electro-magnetic interference (EMI), it is required to slightly vary a switching operation frequency in an SMPS operation. In some embodiments, at least one first signal having a predetermined cycle is generated, a second signal corresponding to a level of a first signal is generated at a turn-off time of a switch, a first reference voltage having at least two different levels is generated according to the second signal, and an oscillator signal for increasing along a first slope during a first period and decreasing along a second slope during a second period between the first reference voltage and a second reference voltage having a level that is different from the first reference voltage is generated.

摘要翻译： 本发明涉及使用该调频装置的频率调制装置和开关模式电源。 为了防止电磁干扰（EMI），需要在SMPS操作中稍微改变开关操作频率。 在一些实施例中，产生具有预定周期的至少一个第一信号，在开关的关断时间产生对应于第一信号的电平的第二信号，具有至少两个不同电平的第一参考电压是 根据第二信号生成的振荡器信号，以及振荡器信号，用于在第一周期期间沿着第一斜率增加，并且在第一参考电压和第二参考电压之间的第二周期期间沿着第二斜率减小，该第二参考电压具有与第一 产生参考电压。

公开(公告)号：US20090206809A1

公开(公告)日：2009-08-20

申请号：US12257774

申请日：2008-10-24

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

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

IPC分类号： G05F1/00

CPC分类号： H02M3/1584 ,  H02M2003/1586

摘要： In an interleaved switching converter, a first converter including a first switch is coupled to a second converter including a second switch. A switching controller for controlling the first switch and the second switch outputs a second control signal for operating the second switch based a first control signal for operating the first switch. A phase shift between the first control signal and the second control signal is 180 degrees.

摘要翻译： 在交织开关转换器中，包括第一开关的第一转换器耦合到包括第二开关的第二转换器。 用于控制第一开关和第二开关的开关控制器基于用于操作第一开关的第一控制信号输出用于操作第二开关的第二控制信号。 第一控制信号和第二控制信号之间的相移为180度。

公开(公告)号：US20080049457A1

公开(公告)日：2008-02-28

申请号：US11879550

申请日：2007-07-18

申请人： Hang-Seok Choi ,  Gwan-Bon Koo ,  Jae-Hwoan Chi

发明人： Hang-Seok Choi ,  Gwan-Bon Koo ,  Jae-Hwoan Chi

IPC分类号： H02M3/335

CPC分类号： H02M1/44 ,  H02M3/33523 ,  Y02B70/1433

摘要： In one embodiment, an SMPS includes a rectifier for generating an input DC voltage from an input AC voltage. A switching transistor is coupled to a primary coil of a transformer for generating power which is transferred to a second side of the transformer according to an operation of the switching transistor. A switching controller receives a feedback voltage corresponding to an output voltage, a sensing signal corresponding to a current flowing through the switching transistor, and a first signal corresponding to a voltage difference between a first electrode and a second electrode of the switching transistor. The switching controller controls an on/off operation of the switching transistor. The switching controller sets a threshold period whenever the first signal has a value greater than a reference value, thereby setting a plurality of threshold periods during operation of the switching mode power supply. For each threshold period, the switching controller turns on the switching transistor at a point after a variable delay time from a previous point at which the switching transistor was turned on.

摘要翻译： 在一个实施例中，SMPS包括用于从输入AC电压产生输入DC电压的整流器。 开关晶体管耦合到变压器的初级线圈，用于根据开关晶体管的操作产生传输到变压器的第二侧的功率。 开关控制器接收对应于输出电压的反馈电压，对应于流过开关晶体管的电流的感测信号，以及对应于开关晶体管的第一电极和第二电极之间的电压差的第一信号。 开关控制器控制开关晶体管的导通/截止操作。 每当第一信号具有大于参考值的值时，开关控制器设置阈值周期，从而在开关模式电源的操作期间设定多个阈值周期。 对于每个阈值周期，开关控制器在从开关晶体管导通的前一点起的可变延迟时间之后的点处接通开关晶体管。

公开(公告)号：US08000119B2

公开(公告)日：2011-08-16

申请号：US11879550

申请日：2007-07-18

申请人： Hang-Seok Choi ,  Gwan-Bon Koo ,  Jae-Hwoan Chi

发明人： Hang-Seok Choi ,  Gwan-Bon Koo ,  Jae-Hwoan Chi

IPC分类号： H02M7/537

CPC分类号： H02M1/44 ,  H02M3/33523 ,  Y02B70/1433

摘要： In one embodiment, an SMPS includes a rectifier for generating an input DC voltage from an input AC voltage. A switching transistor is coupled to a primary coil of a transformer for generating power which is transferred to a second side of the transformer according to an operation of the switching transistor. A switching controller receives a feedback voltage corresponding to an output voltage, a sensing signal corresponding to a current flowing through the switching transistor, and a first signal corresponding to a voltage difference between a first electrode and a second electrode of the switching transistor. The switching controller controls an on/off operation of the switching transistor. The switching controller sets a threshold period whenever the first signal has a value greater than a reference value, thereby setting a plurality of threshold periods during operation of the switching mode power supply. For each threshold period, the switching controller turns on the switching transistor at a point after a variable delay time from a previous point at which the switching transistor was turned on.

摘要翻译： 在一个实施例中，SMPS包括用于从输入AC电压产生输入DC电压的整流器。 开关晶体管耦合到变压器的初级线圈，用于根据开关晶体管的操作产生传输到变压器的第二侧的功率。 开关控制器接收对应于输出电压的反馈电压，对应于流过开关晶体管的电流的感测信号，以及对应于开关晶体管的第一电极和第二电极之间的电压差的第一信号。 开关控制器控制开关晶体管的导通/截止操作。 每当第一信号具有大于参考值的值时，开关控制器设置阈值周期，从而在开关模式电源的操作期间设定多个阈值周期。 对于每个阈值周期，开关控制器在从开关晶体管导通的前一点起的可变延迟时间之后的点处接通开关晶体管。

公开(公告)号：US07880453B2

公开(公告)日：2011-02-01

申请号：US12257774

申请日：2008-10-24

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

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

IPC分类号： G05F1/575 ,  G05F1/613

CPC分类号： H02M3/1584 ,  H02M2003/1586

摘要： In an interleaved switching converter, a first converter including a first switch is coupled to a second converter including a second switch. A switching controller for controlling the first switch and the second switch outputs a second control signal for operating the second switch based a first control signal for operating the first switch. A phase shift between the first control signal and the second control signal is 180 degrees.

摘要翻译： 在交织开关转换器中，包括第一开关的第一转换器耦合到包括第二开关的第二转换器。 用于控制第一开关和第二开关的开关控制器基于用于操作第一开关的第一控制信号输出用于操作第二开关的第二控制信号。 第一控制信号和第二控制信号之间的相移为180度。