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1. 发明授权

US06407934B1 DC/DC switching power supply with optimally timed synchronous rectifier 失效
标题翻译： DC / DC开关电源具有最佳定时同步整流器
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。

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