公开(公告)号：US20050281062A1

公开(公告)日：2005-12-22

申请号：US11153819

申请日：2005-06-15

申请人： Jin-Ho Choi ,  Young-Chul Ryu ,  Dong-Young Huh

发明人： Jin-Ho Choi ,  Young-Chul Ryu ,  Dong-Young Huh

IPC分类号： H02M3/28 ,  H02M3/335

CPC分类号： H02M3/33507 ,  H02M3/33523

摘要： In one embodiment, a switching mode power supply (SMPS) may comprise: a power supply for supplying power to a secondary coil of a transformer according to an operation of a main switch, the main switch being coupled to a primary coil of the transformer; a feedback circuit for generating a feedback voltage corresponding to an output voltage; a control module for stopping the main switch when the feedback voltage is lower than a reference voltage in a standby operation mode; an integrated circuit (IC) power unit for generating a constant voltage, the IC power supply being coupled to the secondary coil of the transformer; and a current generator for using the constant voltage to generate a plurality of constant currents for operating a plurality of ICs, and generating a constant current from among the constant currents when the main switch performs no switching on/off operation.

摘要翻译： 在一个实施例中，开关模式电源（SMPS）可以包括：根据主开关的操作向变压器的次级线圈供电的电源，主开关耦合到变压器的初级线圈; 用于产生对应于输出电压的反馈电压的反馈电路; 控制模块，用于当所述反馈电压低于备用运行模式中的基准电压时，停止所述主开关; 用于产生恒定电压的集成电路（IC）功率单元，所述IC电源耦合到所述变压器的次级线圈; 以及电流发生器，用于使用恒定电压产生用于操作多个IC的多个恒定电流，并且当主开关不执行开/关操作时从恒定电流产生恒定电流。

公开(公告)号：US07391629B2

公开(公告)日：2008-06-24

申请号：US11197801

申请日：2005-08-05

申请人： Young-Chul Ryu ,  Jin-Ho Choi

发明人： Young-Chul Ryu ,  Jin-Ho Choi

IPC分类号： H02H7/122 ,  H02H9/02 ,  H02M3/335

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

摘要： Disclosed is an SMPS for preventing abnormal overcurrents. A circuit having a short circuit delay is used to generate a control signal for turning off a main switch (i.e., a switching MOS transistor) when the overcurrent occurs, that is, in an initial startup or when a protection circuit is operated. Accordingly, a drain-source voltage of the main switch is reduced when the main switch is turned off, and a switching MOS transistor with a low withstanding voltage can be used.

摘要翻译： 公开了用于防止异常过电流的SMPS。 具有短路延迟的电路用于在发生过电流时，即在初始启动时或当保护电路工作时产生用于关断主开关（即，开关MOS晶体管）的控制信号。 因此，当主开关断开时，主开关的漏源电压降低，并且可以使用具有低耐压的开关MOS晶体管。

公开(公告)号：US20060028847A1

公开(公告)日：2006-02-09

申请号：US11197801

申请日：2005-08-05

申请人： Young-Chul Ryu ,  Jin-Ho Choi

发明人： Young-Chul Ryu ,  Jin-Ho Choi

IPC分类号： H02M3/335

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

摘要： Disclosed is an SMPS for preventing abnormal overcurrents. A circuit having a short circuit delay is used to generate a control signal for turning off a main switch (i.e., a switching MOS transistor) when the overcurrent occurs, that is, in an initial startup or when a protection circuit is operated. Accordingly, a drain-source voltage of the main switch is reduced when the main switch is turned off, and a switching MOS transistor with a low withstanding voltage can be used.

摘要翻译： 公开了用于防止异常过电流的SMPS。 具有短路延迟的电路用于在发生过电流时，即在初始启动时或当保护电路工作时产生用于关断主开关（即，开关MOS晶体管）的控制信号。 因此，当主开关断开时，主开关的漏源电压降低，并且可以使用具有低耐压的开关MOS晶体管。

公开(公告)号：US07218532B2

公开(公告)日：2007-05-15

申请号：US11153819

申请日：2005-06-15

申请人： Jin-Ho Choi ,  Young-Chul Ryu ,  Dong-Young Huh

发明人： Jin-Ho Choi ,  Young-Chul Ryu ,  Dong-Young Huh

IPC分类号： H02M3/335

CPC分类号： H02M3/33507 ,  H02M3/33523

摘要： In one embodiment, a switching mode power supply (SMPS) include: a power supply for supplying power to a secondary coil of a transformer according to an operation of a main switch, the main switch being coupled to a primary coil of the transformer; a feedback circuit for generating a feedback voltage corresponding to an output voltage; a control module for stopping the main switch when the feedback voltage is lower than a reference voltage in a standby operation mode; an integrated circuit (IC) power unit for generating a constant voltage, the IC power supply being coupled to the secondary coil of the transformer; and a current generator for using the constant voltage to generate a plurality of constant currents for operating a plurality of ICs, and generating a constant current from among the constant currents when the main switch performs no switching on/off operation.

摘要翻译： 在一个实施例中，开关模式电源（SMPS）包括：根据主开关的操作向变压器的次级线圈提供电力的电源，所述主开关耦合到所述变压器的初级线圈; 用于产生对应于输出电压的反馈电压的反馈电路; 控制模块，用于当所述反馈电压低于备用运行模式中的基准电压时，停止所述主开关; 用于产生恒定电压的集成电路（IC）功率单元，所述IC电源耦合到所述变压器的次级线圈; 以及电流发生器，用于使用恒定电压产生用于操作多个IC的多个恒定电流，并且当主开关不执行开/关操作时从恒定电流产生恒定电流。