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1. 发明授权

US08912786B2 Method and device for determining a direct current and resistance welding device 有权
标题翻译：用于确定直流和电阻焊接装置的方法和装置
公开(公告)号：US08912786B2
公开(公告)日：2014-12-16
申请号：US12998407
申请日：2009-12-01
申请人： Thomas Badegruber , Helmut Ennsbrunner
发明人： Thomas Badegruber , Helmut Ennsbrunner
IPC分类号： G01R15/18 , B23K11/25 , H01F27/40 , H01F38/08
CPC分类号： B23K11/257 , G01R15/181 , H01F27/40 , H01F38/085
摘要： The invention relates to a method and a device for determining a direct current (i(t)) flowing in a conductor (7) and having an amplitude greater than 500 A, which direct current (i(t)) is composed of a number of time-dependent partial currents (ii(t)) flowing in individual conductors (8) with switching elements. To create a drift-free measured value, it is provided that at least one Rogowski coil (10) is arranged around at least one of the individual conductors (8) for the induction of a partial voltage (ui(t)) through the at least one partial current (ii(t)), wherein the individual conductor (8) is formed by a path of a rectifier (6) on a secondary side of a transformer (5) with central tapping, the at least one integrator (11) is designed for integration of the at least one partial voltage (ui(t)), and the at least one integrator (11) is connected to an evaluation unit (12) for determining the direct current (i(t)).
摘要翻译：本发明涉及一种用于确定在导体（7）中流动并且具有大于500A的幅度的直流（i（t））的方法和装置，该直流电流（i（t））由数字在具有开关元件的单个导体（8）中流动的时间依赖性部分电流（ii（t））。为了产生无漂移的测量值，提供了至少一个罗戈夫斯基线圈（10）围绕各个导体（8）中的至少一个布置，用于通过穿过所述导体（8）感应出部分电压（ui（t））。至少一个部分电流（ii（t）），其中单个导体（8）由具有中心抽头的变压器（5）的次级侧上的整流器（6）的路径形成，所述至少一个积分器（11 ）被设计为用于集成所述至少一个部分电压（ui（t）），并且所述至少一个积分器（11）连接到用于确定直流电流（i（t））的评估单元（12）。

2. 发明申请

US20110260711A1 Method and device for determining a direct current and resistance welding device 有权
标题翻译：用于确定直流和电阻焊接装置的方法和装置
公开(公告)号：US20110260711A1
公开(公告)日：2011-10-27
申请号：US12998407
申请日：2009-12-01
申请人： Thomas Badegruber , Helmut Ennsbrunner
发明人： Thomas Badegruber , Helmut Ennsbrunner
IPC分类号： G01R15/18
CPC分类号： B23K11/257 , G01R15/181 , H01F27/40 , H01F38/085
摘要： The invention relates to a method and a device for determining a direct current (i(t)) flowing in a conductor (7) and having an amplitude greater than 500 A, which direct current (i(t)) is composed of a number of time-dependent partial currents (ii(t)) flowing in individual conductors (8) with switching elements. To create a drift-free measured value, it is provided that at least one Rogowski coil (10) is arranged around at least one of the individual conductors (8) for the induction of a partial voltage (ui(t)) through the at least one partial current (ii(t)), wherein the individual conductor (8) is formed by a path of a rectifier (6) on a secondary side of a transformer (5) with central tapping, the at least one integrator (11) is designed for integration of the at least one partial voltage (ui(t)), and the at least one integrator (11) is connected to an evaluation unit (12) for determining the direct current (i(t)).
摘要翻译：本发明涉及一种用于确定在导体（7）中流动并且具有大于500A的幅度的直流（i（t））的方法和装置，该直流电流（i（t））由数字在具有开关元件的单个导体（8）中流动的时间依赖性部分电流（ii（t））。为了产生无漂移的测量值，提供了至少一个罗戈夫斯基线圈（10）围绕各个导体（8）中的至少一个布置，用于通过穿过所述导体（8）感应出部分电压（ui（t））。至少一个部分电流（ii（t）），其中单个导体（8）由具有中心抽头的变压器（5）的次级侧上的整流器（6）的路径形成，所述至少一个积分器（11 ）被设计为用于集成所述至少一个部分电压（ui（t）），并且所述至少一个积分器（11）连接到用于确定直流电流（i（t））的评估单元（12）。

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