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公开(公告)号：US20190149056A1
公开(公告)日：2019-05-16
申请号：US15809682
申请日：2017-11-10
发明人： Jun Zheng , Jianming Yao , Yimin Chen , Huaming Guo , Zhaowu Luo
摘要： A switch detection circuit is provided that senses the voltage on a rectifying component for rectifying a secondary winding current through a secondary winding of a flyback converter's transformer to determine whether a power switch transistor attached to a primary winding of the transformer has ceased cycling.
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公开(公告)号：US11075584B2
公开(公告)日：2021-07-27
申请号：US15809682
申请日：2017-11-10
发明人： Jun Zheng , Jianming Yao , Yimin Chen , Huaming Guo , Zhaowu Luo
摘要： A switch detection circuit is provided that senses the voltage on a rectifying component for rectifying a secondary winding current through a secondary winding of a flyback converter's transformer to determine whether a power switch transistor attached to a primary winding of the transformer has ceased cycling.
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3.发明授权Magnitude adjustment of the drive signal of a switching transistor of a switching power converter 有权开关电源转换器的开关晶体管的驱动信号的幅度调整公开(公告)号：US09525352B2
公开(公告)日：2016-12-20
申请号：US13920914
申请日：2013-06-18
发明人： Junjie Zheng , Jun Zheng , Andrew Kwok-Cheung Lee , John William Kesterson , Allan Ming-Lun Lin , Hien Huu Bui , Carrie Seim , Yong Li
CPC分类号： H02M3/33507 , H02M2001/0032 , H03K17/163 , H03K17/166 , Y02B70/16
摘要： The drive current of the switch in a switching power converter is adjusted dynamically according to line or load conditions within a switching cycle and/or over a plurality of switching cycles. The magnitude of the switch drive current can be dynamically adjusted within a switching cycle and/or over a plurality of switching cycles, in addition to the pulse widths or pulse frequencies of the switch drive current.
摘要翻译： 开关电源转换器中的开关的驱动电流根据开关周期内和/或多个开关周期中的线路或负载条件动态地调整。 除了开关驱动电流的脉冲宽度或脉冲频率之外，开关驱动电流的大小可以在开关周期内和/或多个开关周期内动态地调节。
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