发明公开
EP2677647A3 Synchronous rectifier timer for discontinuous mode DC/DC converter
审中-公开
用于非连续模式DC / DC转换器的同步整流器定时器
- 专利标题： Synchronous rectifier timer for discontinuous mode DC/DC converter
- 专利标题（中）： 用于非连续模式DC / DC转换器的同步整流器定时器
-
申请号： EP13169583.5申请日： 2013-05-28
-
公开(公告)号： EP2677647A3公开(公告)日： 2018-02-28
- 发明人: Pigott, John , Bynum, Byron G. , Perkins, Geoffrey W.
- 申请人： NXP USA, Inc.
- 申请人地址： 6501 William Cannon Drive West Austin TX 78735 US
- 专利权人： NXP USA, Inc.
- 当前专利权人： NXP USA, Inc.
- 当前专利权人地址： 6501 William Cannon Drive West Austin TX 78735 US
- 代理机构： Freescale law department - EMEA patent ops
- 优先权： US201213525882 20120618
- 主分类号： H02M3/158
- IPC分类号： H02M3/158 ; H02M1/00 ; H02M3/156
摘要：
A DC-DC converter (100) includes a switching transistor (M0) connecting an input power terminal (VIN) to an inductor (114) that is also connected to an output power terminal (VOUT), a synchronous rectification transistor (M1) connected to a junction node (113) between the inductor (114) and the switching transistor (M0), and a synchronous rectifier control circuit (200) with an integration capacitor (226) having a voltage that is charged and discharged by first and second current sources (210, 220) to track the charging and discharging of the inductor current, thereby generating a synchronous rectifier control signal (SR) that is applied to the synchronous rectification transistor to discharge the inductor current to zero.
公开/授权文献
信息查询
IPC分类:
