公开(公告)号：US08760893B2

公开(公告)日：2014-06-24

申请号：US13268209

申请日：2011-10-07

申请人： Kwang-woo Nam ,  Jung-nam In ,  Jun-Deok Choi ,  Min-ki Ahn

发明人： Kwang-woo Nam ,  Jung-nam In ,  Jun-Deok Choi ,  Min-ki Ahn

IPC分类号： H02M7/00 ,  H02M3/335

CPC分类号： H02M3/337 ,  H02M2001/008 ,  H02M2001/009 ,  Y10T307/406

摘要： A full bridge switching circuit includes a converter circuit including first and second converters. The first converter includes a first transformer and a first switching element part to control the first transformer in response to a first switching signal. The second converter includes a second transformer and a second switching element part to control the second transformer in response to a second switching signal. The first and second transformers are controlled by the first and second switching element parts to output first and second feedback signals, respectively. The full bridge switching circuit further includes a third switching element part having a third switching input connected to the first and second transformers, and an IC circuit to generate an OR signal by an OR operation of a first control signal generated from the first feedback signal and a second control signal generated from the second feedback signal.

摘要翻译： 全桥开关电路包括包括第一和第二转换器的转换器电路。 第一转换器包括第一变压器和第一开关元件部分，以响应于第一开关信号来控制第一变压器。 第二转换器包括第二变压器和第二开关元件部分，以响应于第二开关信号来控制第二变压器。 第一和第二变压器由第一和第二开关元件部分控制，以分别输出第一和第二反馈信号。 全桥开关电路还包括具有连接到第一和第二变压器的第三开关输入端的第三开关元件部分和通过从第一反馈信号产生的第一控制信号的或运算产生或信号的IC电路，以及 从第二反馈信号产生的第二控制信号。

公开(公告)号：US08653742B2

公开(公告)日：2014-02-18

申请号：US13413928

申请日：2012-03-07

申请人： Hiroki Kikuchi ,  Jung-Nam In ,  Min-Ki Ahn

发明人： Hiroki Kikuchi ,  Jung-Nam In ,  Min-Ki Ahn

IPC分类号： H05B37/02

CPC分类号： H05B33/0827 ,  H05B33/0818 ,  H05B33/0851 ,  Y02B20/347

摘要： A control circuit of a switching power supply for supplying a drive voltage to a light emitting element is provided. The control circuit includes a pulse width modulator which generates a pulse signal whose duty ratio is adjusted such that a detection voltage corresponding to an output voltage of the switching power supply is equal to a predetermined reference voltage, a driver which drives a switching element of the switching power supply based on the pulse signal, and a standby control unit which stops driving of the switching element once a predetermined time has passed after a standby signal steps down to a level indicating a standby state, and to shut down the control circuit and a current source.

摘要翻译： 提供了用于向发光元件提供驱动电压的开关电源的控制电路。 该控制电路包括脉冲宽度调制器，该脉冲宽度调制器产生其占空比被调整为使得与开关电源的输出电压相对应的检测电压等于预定的参考电压的脉冲信号，驱动该开关电源的开关元件的驱动器 基于脉冲信号的开关电源;以及备用控制单元，其在待机信号降低到指示待机状态的电平之后经过预定时间后停止开关元件的驱动，并且关闭控制电路和 当前来源。

公开(公告)号：US20130088077A1

公开(公告)日：2013-04-11

申请号：US13268209

申请日：2011-10-07

申请人： Kwang-woo NAM ,  Jung-nam IN ,  Jun-Deok CHOI ,  Min-ki AHN

发明人： Kwang-woo NAM ,  Jung-nam IN ,  Jun-Deok CHOI ,  Min-ki AHN

IPC分类号： H02M3/337

CPC分类号： H02M3/337 ,  H02M2001/008 ,  H02M2001/009 ,  Y10T307/406

摘要： A full bridge switching circuit includes a converter circuit including first and second converters. The first converter includes a first transformer and a first switching element part to control the first transformer in response to a first switching signal. The second converter includes a second transformer and a second switching element part to control the second transformer in response to a second switching signal. The first and second transformers are controlled by the first and second switching element parts to output first and second feedback signals, respectively. The full bridge switching circuit further includes a third switching element part having a third switching input connected to the first and second transformers, and an IC circuit to generate an OR signal by an OR operation of a first control signal generated from the first feedback signal and a second control signal generated from the second feedback signal.

摘要翻译： 全桥开关电路包括包括第一和第二转换器的转换器电路。 第一转换器包括第一变压器和第一开关元件部分，以响应于第一开关信号来控制第一变压器。 第二转换器包括第二变压器和第二开关元件部分，以响应于第二开关信号来控制第二变压器。 第一和第二变压器由第一和第二开关元件部分控制，以分别输出第一和第二反馈信号。 全桥开关电路还包括具有连接到第一和第二变压器的第三开关输入端的第三开关元件部分和通过从第一反馈信号产生的第一控制信号的或运算产生或信号的IC电路，以及 从第二反馈信号产生的第二控制信号。

公开(公告)号：US20120229045A1

公开(公告)日：2012-09-13

申请号：US13413928

申请日：2012-03-07

申请人： Hiroki KIKUCHI ,  Jung-Nam IN ,  Min-Ki AHN

发明人： Hiroki KIKUCHI ,  Jung-Nam IN ,  Min-Ki AHN

IPC分类号： H05B37/02

CPC分类号： H05B33/0827 ,  H05B33/0818 ,  H05B33/0851 ,  Y02B20/347

摘要： A control circuit of a switching power supply for supplying a drive voltage to a light emitting element is provided. The control circuit includes a pulse width modulator which generates a pulse signal whose duty ratio is adjusted such that a detection voltage corresponding to an output voltage of the switching power supply is equal to a predetermined reference voltage, a driver which drives a switching element of the switching power supply based on the pulse signal, and a standby control unit which stops driving of the switching element once a predetermined time has passed after a standby signal steps down to a level indicating a standby state, and to shut down the control circuit and a current source.

摘要翻译： 提供了用于向发光元件提供驱动电压的开关电源的控制电路。 该控制电路包括脉冲宽度调制器，该脉冲宽度调制器产生其占空比被调整为使得与开关电源的输出电压相对应的检测电压等于预定的参考电压的脉冲信号，驱动该开关电源的开关元件的驱动器 基于脉冲信号的开关电源;以及备用控制单元，其在待机信号降低到指示待机状态的电平之后经过预定时间后停止开关元件的驱动，并且关闭控制电路和 当前来源。