公开(公告)号：US20110188275A1

公开(公告)日：2011-08-04

申请号：US13019767

申请日：2011-02-02

申请人： Kazuaki MINO

发明人： Kazuaki MINO

IPC分类号： H02M1/36

CPC分类号： H02M1/36

摘要： Aspects of the invention provide a method for starting up a DC-DC converter by which an output voltage can be prevented from overshooting and body diodes of switching devices can be prevented from reverse recovery. In the start-up method, the phases of gate signals of third and fourth switching devices are gradually shifted relative to the phases of gate signals of first and second switching devices. With increase of the phase shift, a voltage on a primary side of a transformer is also increased, and an output voltage is also increased.

摘要翻译： 本发明的方面提供了一种用于启动DC-DC转换器的方法，通过该方法可以防止输出电压过冲，并且可以防止开关器件的体二极管反向恢复。 在启动方法中，第三和第四开关器件的栅极信号的相位相对于第一和第二开关器件的栅极信号的相位逐渐移位。 随着相移的增加，变压器的初级侧的电压也增加，并且输出电压也增加。

公开(公告)号：US20100220500A1

公开(公告)日：2010-09-02

申请号：US12696535

申请日：2010-01-29

申请人： Kazuaki MINO ,  Kazunari ITOH

发明人： Kazuaki MINO ,  Kazunari ITOH

IPC分类号： H02M3/335

CPC分类号： H02M1/32 ,  H02M3/3376 ,  H02M2001/0032 ,  H02M2001/0058 ,  Y02B70/1491 ,  Y02B70/16

摘要： The invention prevents the voltage change ratio of switching devices of a power converter from exceeding a specified maximum rating, thus avoiding damage in switching devices and an increase in conduction loss. In a power converter having a plurality of switching devices, switching means for switching a control scheme for the switching devices to a phase shift control scheme or a pulse width modulation scheme is provided, whereby the control scheme for the switching devices is switched from the phase shift control scheme to the pulse width modulation scheme in a non-load or light-load state.

摘要翻译： 本发明防止功率转换器的开关装置的电压变化率超过规定的最大额定值，从而避免开关装置的损坏和导通损耗的增加。 在具有多个开关器件的功率转换器中，提供用于将开关器件的控制方案切换到相移控制方式或脉宽调制方式的切换装置，由此切换装置的控制方式从相位 移位控制方案到无负载或轻负载状态的脉宽调制方案。

公开(公告)号：US20120212984A1

公开(公告)日：2012-08-23

申请号：US13371193

申请日：2012-02-10

申请人： Ryuji YAMADA ,  Kazuaki MINO

发明人： Ryuji YAMADA ,  Kazuaki MINO

IPC分类号： H02M7/04

CPC分类号： H02M7/219 ,  H02M7/23 ,  H02M2001/007

摘要： A power supply device that is able to switch between rectifier circuits in accordance with the voltage of a multi-phase AC power supply, and able to accommodate different power supply voltages. The power supply device has rectifier circuits that include a first circuit that rectifies a line voltage of the AC power supply, converting it into a direct current voltage of a first predetermined value, when the voltage of the AC power supply is a predetermined value or less, and a second circuit that rectifies a phase voltage of the AC power supply, converting it into a direct current voltage of a second predetermined value, when the voltage of the alternating current power supply exceeds the predetermined value. The first and second circuits operate in such a way that the AC input current is of the same phase as the voltage of the AC power supply.

摘要翻译： 一种能够根据多相AC电源的电压在整流电路之间切换并能够适应不同的电源电压的电源装置。 电源装置具有整流电路，其包括：第一电路，对交流电源的线路电压进行整流，将交流电源的电压转换为第一规定值的直流电压时， 以及当所述交流电源的电压超过所述预定值时，对所述交流电源的相电压进行整流，将其转换为第二预定值的直流电压的第二电路。 第一和第二电路以交流输入电流与交流电源的电压相同的方式工作。

公开(公告)号：US20110122667A1

公开(公告)日：2011-05-26

申请号：US12951365

申请日：2010-11-22

申请人： Kazuaki MINO ,  Satoru FUJITA ,  Ryuji YAMADA

发明人： Kazuaki MINO ,  Satoru FUJITA ,  Ryuji YAMADA

IPC分类号： H02M7/00

CPC分类号： H02M1/4208 ,  H02M1/32 ,  Y02B70/126

摘要： A high power factor rectifier circuit, provided with switching sections connected to an AC power supply for converting an AC voltage to a DC voltage, is formed with a bypass circuit provided. The bypass circuit, when the voltage of the AC power supply becomes higher than the voltage across a smoothing capacitor provided on the DC output side, makes a charge current flowing from the AC power supply to the capacitor bypass the switching section by making the switching section out of conduction. Thus, a rectifier circuit is provided which can be safely operated without causing any damage, or with minimized damage, even though an inrush current flows at turning-on the power or at recovery from a power interruption.

摘要翻译： 具有连接到用于将AC电压转换为DC电压的AC电源的开关部分的高功率因数整流电路形成有提供的旁路电路。 旁路电路当交流电源的电压变得高于设置在直流输出侧的平滑电容器两端的电压时，使得从交流电源流向电容器的充电电流通过使开关部分 导通。 因此，提供了一种整流电路，其可以安全地操作，而不会造成任何损坏或最小化的损坏，即使在接通电源或从电源中断恢复时涌入电流也是如此。