公开(公告)号：US07352600B2

公开(公告)日：2008-04-01

申请号：US11297454

申请日：2005-12-09

Applicant: Fujio Nomura ,  Hiroshi Iwanaga ,  Masayasu Doi

Inventor： Fujio Nomura ,  Hiroshi Iwanaga ,  Masayasu Doi

IPC: H02M3/335 ,  H20M7/5387

CPC classification number: H02M3/33592 ,  H02M2001/0012 ,  Y02B70/1475

Abstract: There is no period of time when any of switching elements and switching elements is turned on in a certain switching frequency, any one switching element is turned on in a period of time except for a dead time period for the zero voltage switching, the switching elements and the switching elements are turned on and off while shifting the phases by 180 degrees, and switching elements are turned on during a period of time when the currents in a positive direction and an inverse direction are flowing to the output, respectively, to be operated in a discontinuous current mode.

Abstract translation: 开关元件和开关元件中的任何一个在一定的开关频率下接通时，在零电压开关的死区时间以外的任何一个开关元件都被接通，开关元件 并且在将相位移动180度的同时使开关元件接通和断开，并且在正向和反向的电流分别流向输出的时间段期间，开关元件导通，以被操作 处于不连续电流模式。

公开(公告)号：US20070053210A1

公开(公告)日：2007-03-08

申请号：US11365523

申请日：2006-03-02

Applicant: Fujio Nomura ,  Yoshirou Aoki ,  Masayasu Doi

Inventor： Fujio Nomura ,  Yoshirou Aoki ,  Masayasu Doi

IPC: H02M3/335

CPC classification number: H02M3/337

Abstract: A DC-DC converter comprises a switching circuit having first and second switching elements to which a direct current voltage is supplied, the first and second switching elements making a periodic operation so that one of the switching elements is turned on while the other one is turned OFF during a period other than a dead time period, a serial circuit in which a first capacitor, and primary windings of first and second inductance elements are connected in series, and a connection is made between an output point of the switching circuit and a reference potential point (or input voltage point), and output circuits including rectifier elements, each of which rectifies a voltage induced by secondary windings of the first and second inductance elements, the output circuits obtaining a direct current output voltage.

Abstract translation: DC-DC转换器包括具有第一和第二开关元件的开关电路，其中提供直流电压，第一和第二开关元件进行周期性操作，使得开关元件中的一个导通，而另一个转换 在第一电容器和第一和第二电感元件的初级绕组串联连接的串联电路中，在开关电路的输出点和基准电压之间进行连接的串联电路 电位点（或输入电压点）以及包括整流元件的输出电路，每个整流元件对由第一和第二电感元件的次级绕组引起的电压进行整流，输出电路获得直流输出电压。

公开(公告)号：US20060133119A1

公开(公告)日：2006-06-22

申请号：US11297454

申请日：2005-12-09

Applicant: Fujio Nomura ,  Hiroshi Iwanaga ,  Masayasu Doi

Inventor： Fujio Nomura ,  Hiroshi Iwanaga ,  Masayasu Doi

IPC: H02M3/335

CPC classification number: H02M3/33592 ,  H02M2001/0012 ,  Y02B70/1475

Abstract: There is no period of time when any of switching elements and switching elements is turned on in a certain switching frequency, any one switching element is turned on in a period of time except for a dead time period for the zero voltage switching, the switching elements and the switching elements are turned on and off while shifting the phases by 180 degrees, and switching elements are turned on during a period of time when the currents in a positive direction and an inverse direction are flowing to the output, respectively, to be operated in a discontinuous current mode.

Abstract translation: 开关元件和开关元件中的任何一个在一定的开关频率下接通时，在零电压开关的死区时间以外的任何一个开关元件都被接通，开关元件 并且在将相位移动180度的同时使开关元件接通和断开，并且在正向和反向的电流分别流向输出的时间段期间，开关元件导通，以被操作 处于不连续电流模式。

公开(公告)号：US07706153B2

公开(公告)日：2010-04-27

申请号：US11365523

申请日：2006-03-02

Applicant: Fujio Nomura ,  Yoshirou Aoki ,  Masayasu Doi

Inventor： Fujio Nomura ,  Yoshirou Aoki ,  Masayasu Doi

IPC: H02M3/335

CPC classification number: H02M3/337

Abstract: A DC-DC converter includes a switching circuit having first and second switching elements to which a direct current voltage is supplied, the first and second switching elements periodically operated so that one of the switching elements is turned on while the other one is turned OFF during a period other than a dead time period, a serial circuit in which a first capacitor, and primary windings of first and second inductance elements are connected in series, and a connection is made between an output point of the switching circuit and a reference potential point (or input voltage point), and output circuits including rectifier elements, each of which rectifies a voltage induced by secondary windings of the first and second inductance elements, the output circuits obtaining a direct current output voltage.

Abstract translation: DC-DC转换器包括具有第一和第二开关元件的开关电路，直流电压被提供给第一和第二开关元件，第一和第二开关元件周期性地操作，使得开关元件中的一个导通，而另一个开关元件被断开 除了死区时间之外的时段，串联电路，其中第一电容器和第一和第二电感元件的初级绕组串联连接，并且在开关电路的输出点和参考电位点 （或输入电压点）以及包括整流元件的输出电路，每个整流元件对由第一和第二电感元件的次级绕组引起的电压进行整流，输出电路获得直流输出电压。

公开(公告)号：US3937669A

公开(公告)日：1976-02-10

申请号：US478002

申请日：1974-06-10

Applicant: Hitoshi Nakajima ,  Fujio Nomura ,  Shinichi Izawa

Inventor： Hitoshi Nakajima ,  Fujio Nomura ,  Shinichi Izawa

IPC: B01J23/889 ,  C07C37/16 ,  B01J21/02 ,  B01J23/78 ,  B01J23/84

CPC classification number: C07C37/16 ,  B01J23/8892

Abstract: Vapor phase methylation of phenols with methanol in contact with a vanadium oxide catalyst which may additionally contain iron oxide and at least one other oxide of magnesium, titanium, manganese, beryllium or boron.