公开(公告)号：US09467059B2

公开(公告)日：2016-10-11

申请号：US14348505

申请日：2012-08-02

申请人： Eric Hueckel ,  Stefan Koch ,  Florian Lieblang ,  Stephan Binhack ,  Tobias Pristl ,  Michael Zeller ,  Stephan Mueller ,  Jian Tian ,  Ralf Bochat ,  Ralf-Peter Bergmann

发明人： Eric Hueckel ,  Stefan Koch ,  Florian Lieblang ,  Stephan Binhack ,  Tobias Pristl ,  Michael Zeller ,  Stephan Mueller ,  Jian Tian ,  Ralf Bochat ,  Ralf-Peter Bergmann

IPC分类号： H02M3/335 ,  H02M3/337 ,  H02M1/36 ,  H02M1/00

CPC分类号： H02M3/3378 ,  H02M1/36 ,  H02M3/33592 ,  H02M2001/0025 ,  Y02B70/1475

摘要： The invention relates to an activation apparatus (20) for a galvanically decoupled direct voltage converter having a synchronous rectifier, comprising a signal generating device (22), which is designed to generate control signals (22c, 22d) for switch devices of the synchronous rectifier and a reference current signal (22b), a first comparator device (23), which is coupled to the signal generating device (22), and which is designed to detect the secondary-side output current (Jo) of the synchronous rectifier, compare it to the reference current signal (22b) and generate a current control signal in dependence on the comparison, and a pulse width modulation device (25), which is coupled to the signal generating device (22) and the first comparator device (23) and which is designed to generate pulse width modulated activation signals (25a) for the switch devices of the synchronous rectifier on the basis of the control signals (22c, 22d) and the current control signal, wherein the signal generating device (22) is furthermore designed to reduce the reference current signal (22b) within a first predetermined timespan to a predetermined reference current threshold.

摘要翻译： 本发明涉及一种用于具有同步整流器的电流去耦直流电压转换器的激活装置（20），其包括信号发生装置（22），其被设计成产生用于同步整流器的开关装置的控制信号（22c，22d） 和参考电流信号（22b），耦合到所述信号发生装置（22）并被设计成检测所述同步整流器的次级侧输出电流（Jo）的第一比较器装置（23）进行比较 与参考电流信号（22b）相关并根据比较产生电流控制信号，以及耦合到信号产生装置（22）和第一比较器装置（23）的脉宽调制装置（25） 并且其被设计成基于控制信号（22c，22d）和电流控制信号来产生用于同步整流器的开关装置的脉冲宽度调制的激活信号（25a），其中信号g 激励装置（22）还被设计为将第一预定时间段内的参考电流信号（22b）减小到预定的参考电流阈值。

公开(公告)号：US20140328086A1

公开(公告)日：2014-11-06

申请号：US14348505

申请日：2012-08-02

申请人： Eric Hueckel ,  Stefan Koch ,  Florian Lieblang ,  Stephan Binhack ,  Tobias Pristl ,  Michael Zeller ,  Stephan Mueller ,  Jian Tian ,  Ralf Bochat ,  Ralf-Peter Bergmann

发明人： Eric Hueckel ,  Stefan Koch ,  Florian Lieblang ,  Stephan Binhack ,  Tobias Pristl ,  Michael Zeller ,  Stephan Mueller ,  Jian Tian ,  Ralf Bochat ,  Ralf-Peter Bergmann

IPC分类号： H02M3/337

CPC分类号： H02M3/3378 ,  H02M1/36 ,  H02M3/33592 ,  H02M2001/0025 ,  Y02B70/1475

摘要： The invention relates to an activation apparatus (20) for a galvanically decoupled direct voltage converter having a synchronous rectifier, comprising a signal generating device (22), which is designed to generate control signals (22c, 22d) for switch devices of the synchronous rectifier and a reference current signal (22b), a first comparator device (23), which is coupled to the signal generating device (22), and which is designed to detect the secondary-side output current (Jo) of the synchronous rectifier, compare it to the reference current signal (22b) and generate a current control signal in dependence on the comparison, and a pulse width modulation device (25), which is coupled to the signal generating device (22) and the first comparator device (23) and which is designed to generate pulse width modulated activation signals (25a) for the switch devices of the synchronous rectifier on the basis of the control signals (22c, 22d) and the current control signal, wherein the signal generating device (22) is furthermore designed to reduce the reference current signal (22b) within a first predetermined timespan to a predetermined reference current threshold.

摘要翻译： 本发明涉及一种用于具有同步整流器的电流去耦直流电压转换器的激活装置（20），其包括信号发生装置（22），其被设计成产生用于同步整流器的开关装置的控制信号（22c，22d） 和参考电流信号（22b），耦合到所述信号发生装置（22）并被设计成检测所述同步整流器的次级侧输出电流（Jo）的第一比较器装置（23）进行比较 与参考电流信号（22b）相关并根据比较产生电流控制信号，以及耦合到信号产生装置（22）和第一比较器装置（23）的脉宽调制装置（25） 并且其被设计成基于控制信号（22c，22d）和电流控制信号来产生用于同步整流器的开关装置的脉冲宽度调制的激活信号（25a），其中信号g 激励装置（22）还被设计为将第一预定时间段内的参考电流信号（22b）减小到预定的参考电流阈值。