公开(公告)号：US08699241B2

公开(公告)日：2014-04-15

申请号：US13246361

申请日：2011-09-27

申请人： Byoung Woo Ryu ,  Young Woon Choi ,  Seong Wook Choi

发明人： Byoung Woo Ryu ,  Young Woon Choi ,  Seong Wook Choi

IPC分类号： H02M3/335

CPC分类号： H02J9/061 ,  H02M3/33576 ,  H02M2001/0006 ,  H02M2001/0032 ,  Y02B70/16 ,  Y10T307/615

摘要： There is provided a switching mode power supply including: a direct current (DC)/DC converting unit converting a DC power level; an auxiliary power supply unit discharged in a no load mode in which a load is not connected to an output terminal of the DC/DC converting unit; and a controlling unit sensing a change in impedance according to whether or not the load is connected to the output terminal to thereby determine whether or not the switching mode power supply is in the no load mode, and driving a pulse width modulation integrated chip (PWM IC) when a voltage level of the auxiliary power supply unit is at a preset level or less in the no load mode.

摘要翻译： 提供了一种开关模式电源，包括：直流（DC）/ DC转换单元，其转换DC功率电平; 辅助电源单元，其在负载未连接到DC / DC转换单元的输出端子的空载模式下放电; 以及控制单元，根据负载是否连接到输出端子来感测阻抗的变化，从而确定开关模式电源是否处于空载模式，以及驱动脉宽调制集成芯片（PWM IC）当辅助电源单元的电压电平在空载模式下处于预设电平以下时。

公开(公告)号：US20120256491A1

公开(公告)日：2012-10-11

申请号：US13246361

申请日：2011-09-27

申请人： Byoung Woo RYU ,  Young Woon Choi ,  Seong Wook Choi

发明人： Byoung Woo RYU ,  Young Woon Choi ,  Seong Wook Choi

IPC分类号： H02J9/00

CPC分类号： H02J9/061 ,  H02M3/33576 ,  H02M2001/0006 ,  H02M2001/0032 ,  Y02B70/16 ,  Y10T307/615

摘要： There is provided a switching mode power supply including: a direct current (DC)/DC converting unit converting a DC power level; an auxiliary power supply unit discharged in a no load mode in which a load is not connected to an output terminal of the DC/DC converting unit; and a controlling unit sensing a change in impedance according to whether or not the load is connected to the output terminal to thereby determine whether or not the switching mode power supply is in the no load mode, and driving a pulse width modulation integrated chip (PWM IC) when a voltage level of the auxiliary power supply unit is at a preset level or less in the no load mode.

摘要翻译： 提供了一种开关模式电源，包括：直流（DC）/ DC转换单元，其转换DC功率电平; 辅助电源单元，其在负载未连接到DC / DC转换单元的输出端子的空载模式下放电; 以及控制单元，根据负载是否连接到输出端子来感测阻抗的变化，从而确定开关模式电源是否处于空载模式，以及驱动脉宽调制集成芯片（PWM IC）当辅助电源单元的电压电平在空载模式下处于预设电平以下时。