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：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。