公开(公告)号：US06407934B1

公开(公告)日：2002-06-18

申请号：US09867828

申请日：2001-05-30

申请人： Takuya Ishii ,  Toshio Hamaguchi ,  Takaharu Murakami

发明人： Takuya Ishii ,  Toshio Hamaguchi ,  Takaharu Murakami

IPC分类号： H02M3335

CPC分类号： H02M3/33592 ,  H02M2001/0048 ,  Y02B70/1475 ,  Y02B70/1491

摘要： A switching power converter of the present invention, wherein a series circuit comprising the primary winding 31 of a transformer and a first switch 2 is connected in parallel with a DC input power supply 1, and a series circuit comprising a capacitor 8 and a second switch 7 is connected in parallel with the primary winding 31; the switching power converter is provided with a first control drive circuit 9 for alternately turning on/off the first switch 2 and the second switch 7 so as to have an on-period, an off-period and a rest period, and a second control drive circuit for turning on/off the third switch 41 connected to the secondary winding 32 of the transformer, whereby the current flowing through the secondary winding of the transformer has a resonance waveform.

摘要翻译： 本发明的开关电源转换器，其中包括变压器的初级绕组31和第一开关2的串联电路与直流输入电源1并联连接，串联电路包括电容器8和第二开关 7与初级绕组31并联连接; 开关电源转换器设置有用于交替地接通/断开第一开关2和第二开关7的第一控制驱动电路9，以便具有导通周期，非周期和休止周期以及第二控制 用于接通/断开连接到变压器的次级绕组32的第三开关41的驱动电路，由此流过变压器的次级绕组的电流具有共振波形。

公开(公告)号：US5905369A

公开(公告)日：1999-05-18

申请号：US950348

申请日：1997-10-14

申请人： Takuya Ishii ,  Yoshio Mizutani

发明人： Takuya Ishii ,  Yoshio Mizutani

IPC分类号： H02M3/158 ,  H02M3/28 ,  G05F1/59

CPC分类号： H02M3/285 ,  H02M3/1584

摘要： The interleaved switching converter circuit of the present invention includes: a first and a second switching converter which are connected in parallel to each other; a first control driver for turning ON/OFF the first switching converter; a charger/discharger having a first and a second capacitor and alternately charging/discharging the first and the second capacitors, in response to the turn ON/OFF of the first switching converter; and a second control driver for turning ON/OFF the second switching converter in synchronism with an inversion of a difference between voltages of the first and the second capacitors.

摘要翻译： 本发明的交错切换转换电路包括：并联连接的第一和第二开关转换器; 用于使第一开关转换器接通/断开的第一控制驱动器; 具有第一和第二电容器的充电器/放电器，并且响应于第一开关转换器的接通/断开而交替地对第一和第二电容器进行充电/放电; 以及第二控制驱动器，用于与第一和第二电容器的电压之间的差的反转同步地接通/断开第二开关转换器。

公开(公告)号：US5774345A

公开(公告)日：1998-06-30

申请号：US725366

申请日：1996-10-03

申请人： Koji Yoshida ,  Takuya Ishii ,  Hiroyuki Handa

发明人： Koji Yoshida ,  Takuya Ishii ,  Hiroyuki Handa

IPC分类号： H02M3/335 ,  H02M3/337

CPC分类号： H02M3/337 ,  H02M3/33569 ,  H02M2001/0058 ,  H02M2003/1552 ,  Y02B70/1491

摘要： A direct current output voltage is switched by two switching units and a current alternately changing directions is supplied to a primary winding of a transformer. An alternating voltage induced in a secondary winding of the transformer is rectified and smoothed, and is applied to a control circuit. A bidirectional switching unit is connected in parallel with the primary winding, and is controlled by the control circuit so that the primary winding is short-circuited by the bidirectional switching unit and an exciting energy of the transformer is held continuously.

摘要翻译： 直流输出电压由两个开关单元切换，并且电流交替变化的方向被提供给变压器的初级绕组。 在变压器的次级绕组中感应的交流电压被整流和平滑，并被施加到控制电路。 双向开关单元与初级绕组并联连接，由控制电路控制，使得初级绕组由双向开关单元短路，变压器的激励能量持续保持。