公开(公告)号：US20110057519A1

公开(公告)日：2011-03-10

申请号：US12946957

申请日：2010-11-16

申请人： Noboru Wakatsuki ,  Hideaki Deguchi ,  Yu Yonezawa ,  Naoyuki Mishima

发明人： Noboru Wakatsuki ,  Hideaki Deguchi ,  Yu Yonezawa ,  Naoyuki Mishima

IPC分类号： H01H47/00

CPC分类号： H02M3/158 ,  Y10T307/76

摘要： The present invention is a switch circuit equipped with a first switch connected between another end of an inductive load having a one end connected to a one end of a DC power supply and another end of the DC power supply, a capacitor connected between the another end of the inductive load and the another end of the DC power supply and connected in parallel with the first switch, a second switch that connects the another end of the inductive load and the capacitor, a third switch that connects a one end of the capacitor on an inductive load side to the one end of the inductive load so as to be parallel to the second switch, and a control circuit that turns ON the second switch before the first switch is turned OFF and turns OFF the second switch before the first switch is turned ON after being turned OFF.

摘要翻译： 本发明是一种开关电路，其配备有连接在电感性负载的另一端之间的第一开关，该感性负载的一端连接到直流电源的一端和直流电源的另一端，电容器连接在另一端 的电感负载和直流电源的另一端并联连接到第一开关，第二开关，其连接电感负载的另一端和电容器;第三开关，其将电容器的一端连接到 感应负载侧的感性负载侧，以平行于第二开关;以及控制电路，其在第一开关断开之前接通第二开关，并且在第一开关之前将第二开关断开 关闭后打开。

公开(公告)号：US07880450B2

公开(公告)日：2011-02-01

申请号：US12777711

申请日：2010-05-11

申请人： Yu Yonezawa ,  Naoyuki Mishima

发明人： Yu Yonezawa ,  Naoyuki Mishima

IPC分类号： G05F1/613 ,  G05F1/618 ,  G05F1/24 ,  H02H7/122

CPC分类号： H02M3/158 ,  H02M3/156 ,  H02M2001/342 ,  Y02B70/1491

摘要： A switching power supply includes: a first switch provided between one end of a DC power supply and one end of a load; a second switch provided between a node of the first switch located on a load side and another end of the DC power supply; a capacitor provided between the second switch and the another end of the DC power supply; a third switch provided between a node of the first switch located on a DC power supply side and a node between the second switch and the capacitor; and a delay circuit that is provided between the third switch and the node between the second switch and the capacitor and delays a current for charging the capacitor, wherein the second switch is turned on in a period during which the first switch is kept on.

摘要翻译： 开关电源包括：设置在直流电源的一端和负载的一端之间的第一开关; 设置在位于负载侧的第一开关的节点与直流电源的另一端之间的第二开关; 设置在所述第二开关和所述直流电源的另一端之间的电容器; 设置在位于直流电源侧的第一开关的节点与第二开关与电容器之间的节点之间的第三开关; 以及延迟电路，其设置在第三开关和第二开关与电容器之间的节点之间，并且延迟用于对电容器充电的电流，其中第二开关在第一开关保持导通的时段期间导通。

公开(公告)号：US20110215788A1

公开(公告)日：2011-09-08

申请号：US13033227

申请日：2011-02-23

申请人： Yu Yonezawa ,  Naoyuki Mishima

发明人： Yu Yonezawa ,  Naoyuki Mishima

IPC分类号： G05F3/24

CPC分类号： H02M3/1588 ,  H01F17/062 ,  Y02B70/1466

摘要： The present invention is a DC-DC converter characterized by including a switch element that is provided between one end of a DC power source and one end of a load and turns ON and OFF current input from the DC power source, an inductance element that is provided between one end of the switch element on a load-side end and includes a doughnut-shaped magnetic core and a conductive wire wound around the magnetic core, a commutation switch provided between a node between the switch element and the inductance element and a ground potential, and a capacitance element provided between a node between the inductance element and the load and the ground potential, wherein a magnetic flux density of the magnetic core varies partially.

摘要翻译： 本发明是一种DC-DC转换器，其特征在于包括：开关元件，其设置在直流电源的一端和负载的一端之间，并且从直流电源接通和断开电流;电感元件 设置在负载侧端部的开关元件的一端之间，并且包括环形磁芯和缠绕在磁芯上的导线，设置在开关元件和电感元件之间的节点与地之间的换向开关 电位和设置在电感元件和负载之间的节点与接地电位之间的电容元件，其中磁芯的磁通密度部分变化。