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公开(公告)号:US08610400B2
公开(公告)日:2013-12-17
申请号:US13196298
申请日:2011-08-02
CPC分类号: H02J50/12 , H02J5/005 , H02J7/025 , H02J17/00 , H02J50/10 , H02J50/40 , H02J50/60 , H02J50/80 , H04B5/0037 , Y10T307/297
摘要: An inductive power transfer system comprises a primary unit, having a primary coil and an electrical drive unit which applies electrical drive signals to the primary coil so as to generate an electromagnetic field. The system also comprises at least one secondary device, separable from the primary unit and having a secondary coil which couples with the field when the secondary device is in proximity to the primary unit. A control unit causes a circuit including said primary coil to operate, during a measurement period, in an undriven resonating condition. In this condition the application of the drive signals to the primary coil by the electrical drive unit is suspended so that energy stored in the circuit decays over the course of the period. A decay measurement unit takes one or more measures of such energy decay during the measurement period. In dependence upon said one or more energy decay measures, the control unit controls the electrical drive unit so as to restrict or stop inductive power transfer from the primary unit.
摘要翻译: 感应电力传输系统包括具有初级线圈的主单元和向初级线圈施加电驱动信号以产生电磁场的电驱动单元。 该系统还包括至少一个次级装置,其可与主单元分离并且具有次级线圈,当次级装置处于主单元附近时与次级线圈耦合。 控制单元使得包括所述初级线圈的电路在测量周期期间在未驱动的谐振条件下操作。 在这种情况下,通过电驱动单元将驱动信号施加到初级线圈被暂停,使得存储在电路中的能量在该周期的过程中衰减。 衰减测量单元在测量期间采取这种能量衰减的一种或多种措施。 根据所述一个或多个能量衰减措施,控制单元控制电驱动单元以限制或停止从主单元的感应功率传递。
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公开(公告)号:US07605496B2
公开(公告)日:2009-10-20
申请号:US11569035
申请日:2005-05-11
申请人: Michael Craig Stevens , Alexander Charles Knill , John Robert Dunton , Andrew Nicolas Dames , Kevin Alan Lamb
发明人: Michael Craig Stevens , Alexander Charles Knill , John Robert Dunton , Andrew Nicolas Dames , Kevin Alan Lamb
IPC分类号: H02J3/00
CPC分类号: H02J50/80 , G05F1/66 , H01F38/14 , H02J5/005 , H02J17/00 , H02J50/10 , H02J50/12 , H02J50/60 , Y10T307/297 , Y10T307/406 , Y10T307/511
摘要: An inductive power transfer system (1) comprises a primary unit (10) operable to generate an electromagnetic field and at least one secondary device (30), separable from the primary unit, and adapted to couple with the field when the secondary device is in proximity to the primary unit so that power can be received inductively by the secondary device from the primary unit without direct electrical conductive contacts therebetween. The system detects if there is a substantial difference between, on the one hand, a power drawn from the primary unit and, on the other hand, a power required by the secondary device or, if there is more than one secondary device, a combined power required by the secondary devices. Following such detection, the system restricts or stops the inductive power supply from the primary unit. Such a system can detect the presence of unwanted parasitic loads in the vicinity of the primary unit reliably.
摘要翻译: 感应电力传输系统(1)包括可操作以产生电磁场的主单元(10)和可与主单元分离的至少一个辅助设备(30),并且适于在辅助设备处于该状态时与现场耦合 靠近初级单元,从而能够通过次级装置从主单元感应地接收电力,而在它们之间没有直接的导电接触。 一方面,该系统检测是否存在从主要单元抽取的功率和另一方面是辅助设备所需的功率之间的显着差异,或者如果存在多于一个次要设备的组合 次要设备所需的电力。 在这种检测之后,系统限制或停止来自主单元的感应电源。 这样的系统可以可靠地检测主单元附近的不期望的寄生负载的存在。
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公开(公告)号:US20090322158A1
公开(公告)日:2009-12-31
申请号:US12556121
申请日:2009-09-09
申请人: Michael Craig Stevens , Alexander Charles Knill , John Robert Dunton , Andrew Nicolas Dames , Kevin Alan Lamb
发明人: Michael Craig Stevens , Alexander Charles Knill , John Robert Dunton , Andrew Nicolas Dames , Kevin Alan Lamb
CPC分类号: H02J50/80 , G05F1/66 , H01F38/14 , H02J5/005 , H02J17/00 , H02J50/10 , H02J50/12 , H02J50/60 , Y10T307/297 , Y10T307/406 , Y10T307/511
摘要: An inductive power transfer system (1) comprises a primary unit (10) operable to generate an electromagnetic field and at least one secondary device (30), separable from the primary unit, and adapted to couple with the field when the secondary device is in proximity to the primary unit so that power can be received inductively by the secondary device from the primary unit without direct electrical conductive contacts therebetween. The system detects if there is a substantial difference between, on the one hand, a power drawn from the primary unit and, on the other hand, a power required by the secondary device or, if there is more than one secondary device, a combined power required by the secondary devices. Following such detection, the system restricts or stops the inductive power supply from the primary unit. Such a system can detect the presence of unwanted parasitic loads in the vicinity of the primary unit reliably.
摘要翻译: 感应电力传输系统(1)包括可操作以产生电磁场的主单元(10)和可与主单元分离的至少一个辅助设备(30),并且适于在辅助设备处于该状态时与现场耦合 靠近初级单元,从而能够通过次级装置从主单元感应地接收电力,而在它们之间没有直接的导电接触。 一方面,该系统检测是否存在从主要单元抽取的功率和另一方面是辅助设备所需的功率之间的显着差异,或者如果存在多于一个次要设备的组合 次要设备所需的电力。 在这种检测之后,系统限制或停止来自主单元的感应电源。 这样的系统可以可靠地检测主单元附近的不期望的寄生负载的存在。
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公开(公告)号:US08508077B2
公开(公告)日:2013-08-13
申请号:US13236066
申请日:2011-09-19
申请人: Michael Craig Stevens , Alexander Charles Knill , John Robert Dunton , Julian Andrew John Fells
发明人: Michael Craig Stevens , Alexander Charles Knill , John Robert Dunton , Julian Andrew John Fells
CPC分类号: H02J50/80 , G05F1/66 , H01F38/14 , H02J5/005 , H02J17/00 , H02J50/10 , H02J50/12 , H02J50/60 , Y10T307/297 , Y10T307/406 , Y10T307/511
摘要: An inductive power transfer system comprises a primary unit operable to generate an electromagnetic field and at least one secondary device, separable from the primary unit, and adapted to couple with the field when the secondary device is in proximity to the primary unit so that power can be received inductively by the secondary device from the primary unit without direct electrical conductive contacts therebetween. The system detects if there is a substantial difference between, on the one hand, a power drawn from the primary unit, and on the other hand, a power required by the secondary device or, if there is more than one secondary device, a combined power required by the secondary devices. Following such detection, the system restricts or stops the inductive power supply from the primary unit. Such a system can detect the presence of unwanted parasitic loads in the vicinity of the primary unit reliably.
摘要翻译: 感应功率传输系统包括可操作以产生电磁场的主单元和可与主单元分离的至少一个次设备,并且适于在次设备接近初级单元时与现场耦合,使得功率可以 由次级装置从主装置感应地接收,而不在其间直接导电接触。 一方面,系统检测是否存在从主要单元抽取的功率和另一方面是次要设备所需的功率的实质性差异,或者如果存在多于一个的次级设备,则组合 次要设备所需的电力。 在这种检测之后,系统限制或停止来自主单元的感应电源。 这样的系统可以可靠地检测主单元附近的不期望的寄生负载的存在。
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公开(公告)号:US20120068536A1
公开(公告)日:2012-03-22
申请号:US13236066
申请日:2011-09-19
申请人: Michael Craig Stevens , Alexander Charles Knill , John Robert Dunton , Julian Andrew John Fells
发明人: Michael Craig Stevens , Alexander Charles Knill , John Robert Dunton , Julian Andrew John Fells
IPC分类号: H01F38/14
CPC分类号: H02J50/80 , G05F1/66 , H01F38/14 , H02J5/005 , H02J17/00 , H02J50/10 , H02J50/12 , H02J50/60 , Y10T307/297 , Y10T307/406 , Y10T307/511
摘要: An inductive power transfer system comprises a primary unit operable to generate an electromagnetic field and at least one secondary device, separable from the primary unit, and adapted to couple with the field when the secondary device is in proximity to the primary unit so that power can be received inductively by the secondary device from the primary unit without direct electrical conductive contacts therebetween. The system detects if there is a substantial difference between, on the one hand, a power drawn from the primary unit, and on the other hand, a power required by the secondary device or, if there is more than one secondary device, a combined power required by the secondary devices. Following such detection, the system restricts or stops the inductive power supply from the primary unit. Such a system can detect the presence of unwanted parasitic loads in the vicinity of the primary unit reliably.
摘要翻译: 感应功率传输系统包括可操作以产生电磁场的主单元和可与主单元分离的至少一个次设备,并且适于在次设备接近初级单元时与现场耦合,使得功率可以 由次级装置从主装置感应地接收,而不在其间直接导电接触。 一方面,系统检测是否存在从主要单元抽取的功率和另一方面是次要设备所需的功率的实质性差异,或者如果存在多于一个的次级设备,则组合 次要设备所需的电力。 在这种检测之后,系统限制或停止来自主单元的感应电源。 这样的系统可以可靠地检测主单元附近的不期望的寄生负载的存在。
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公开(公告)号:US20090134713A1
公开(公告)日:2009-05-28
申请号:US12366842
申请日:2009-02-06
IPC分类号: H02J17/00
CPC分类号: H02J50/12 , H02J5/005 , H02J7/025 , H02J17/00 , H02J50/10 , H02J50/40 , H02J50/60 , H02J50/80 , H04B5/0037 , Y10T307/297
摘要: An inductive power transfer system comprises a primary unit 10, having a primary coil 12 and an electrical drive unit 14 which applies electrical drive signals to the primary coil so as to generate an electromagnetic field. The system also comprises at least one secondary device 30, separable from the primary unit and having a secondary coil 32 which couples with the field when the secondary device is in proximity to the primary unit. A control unit 16 causes a circuit including said primary coil to operate, during a measurement period, in an undriven resonating condition. In this condition the application of the drive signals to the primary coil by the electrical drive unit is suspended so that energy stored in the circuit decays over the course of the period. A decay measurement unit 18 takes one or more measures of such energy decay during the measurement period. In dependence upon said one or more energy decay measures, the control unit controls the electrical drive unit so as to restrict or stop inductive power transfer from the primary unit.
摘要翻译: 感应电力传输系统包括主单元10,其具有初级线圈12和电驱动单元14,其将电驱动信号施加到初级线圈以便产生电磁场。 该系统还包括至少一个次级装置30,其可与主单元分离并且具有次级线圈32,当次级装置接近初级装置时,它与该场耦合。 控制单元16使得包括所述初级线圈的电路在测量周期期间在未驱动的谐振条件下操作。 在这种情况下,通过电驱动单元将驱动信号施加到初级线圈被暂停,使得存储在电路中的能量在该周期的过程中衰减。 衰减测量单元18在测量周期期间采取这种能量衰减的一个或多个措施。 根据所述一个或多个能量衰减措施,控制单元控制电驱动单元以限制或停止从主单元的感应功率传递。
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公开(公告)号:US20110285214A1
公开(公告)日:2011-11-24
申请号:US13196298
申请日:2011-08-02
IPC分类号: H01F38/14
CPC分类号: H02J50/12 , H02J5/005 , H02J7/025 , H02J17/00 , H02J50/10 , H02J50/40 , H02J50/60 , H02J50/80 , H04B5/0037 , Y10T307/297
摘要: An inductive power transfer system comprises a primary unit, having a primary coil and an electrical drive unit which applies electrical drive signals to the primary coil so as to generate an electromagnetic field. The system also comprises at least one secondary device, separable from the primary unit and having a secondary coil which couples with the field when the secondary device is in proximity to the primary unit. A control unit causes a circuit including said primary coil to operate, during a measurement period, in an undriven resonating condition. In this condition the application of the drive signals to the primary coil by the electrical drive unit is suspended so that energy stored in the circuit decays over the course of the period. A decay measurement unit takes one or more measures of such energy decay during the measurement period. In dependence upon said one or more energy decay measures, the control unit controls the electrical drive unit so as to restrict or stop inductive power transfer from the primary unit.
摘要翻译: 感应电力传输系统包括具有初级线圈的主单元和向初级线圈施加电驱动信号以产生电磁场的电驱动单元。 该系统还包括至少一个次级装置,其可与主单元分离并且具有次级线圈,当次级装置接近初级装置时,其与该场耦合。 控制单元使得包括所述初级线圈的电路在测量周期期间在未驱动的谐振条件下操作。 在这种情况下,通过电驱动单元将驱动信号施加到初级线圈被暂停,使得存储在电路中的能量在该周期的过程中衰减。 衰减测量单元在测量期间采取这种能量衰减的一种或多种措施。 根据所述一个或多个能量衰减措施,控制单元控制电驱动单元以限制或停止从主单元的感应功率传递。
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公开(公告)号:US08039995B2
公开(公告)日:2011-10-18
申请号:US12556121
申请日:2009-09-09
申请人: Michael Craig Stevens , Alexander Charles Knill , John Robert Dunton , Andrew Nicolas Dames , Kevin Alan Lamb
发明人: Michael Craig Stevens , Alexander Charles Knill , John Robert Dunton , Andrew Nicolas Dames , Kevin Alan Lamb
CPC分类号: H02J50/80 , G05F1/66 , H01F38/14 , H02J5/005 , H02J17/00 , H02J50/10 , H02J50/12 , H02J50/60 , Y10T307/297 , Y10T307/406 , Y10T307/511
摘要: An inductive power transfer system (1) comprises a primary unit (10) operable to generate an electromagnetic field and at least one secondary device (30), separable from the primary unit, and adapted to couple with the field when the secondary device is in proximity to the primary unit so that power can be received inductively by the secondary device from the primary unit without direct electrical conductive contacts therebetween. The system detects if there is a substantial difference between, on the one hand, a power drawn from the primary unit and, on the other hand, a power required by the secondary device or, if there is more than one secondary device, a combined power required by the secondary devices. Following such detection, the system restricts or stops the inductive power supply from the primary unit. Such a system can detect the presence of unwanted parasitic loads in the vicinity of the primary unit reliably.
摘要翻译: 感应电力传输系统(1)包括可操作以产生电磁场的主单元(10)和可与主单元分离的至少一个辅助设备(30),并且适于在辅助设备处于该状态时与现场耦合 靠近初级单元,从而能够通过次级装置从主单元感应地接收电力,而在它们之间没有直接的导电接触。 一方面,该系统检测是否存在从主要单元抽取的功率和另一方面是辅助设备所需的功率之间的显着差异,或者如果存在多于一个次要设备的组合 次要设备所需的电力。 在这种检测之后,系统限制或停止来自主单元的感应电源。 这样的系统可以可靠地检测主单元附近的不期望的寄生负载的存在。
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公开(公告)号:US20110006613A1
公开(公告)日:2011-01-13
申请号:US12885445
申请日:2010-09-18
IPC分类号: H02J17/00
CPC分类号: H02J50/12 , H02J5/005 , H02J7/025 , H02J17/00 , H02J50/10 , H02J50/40 , H02J50/60 , H02J50/80 , H04B5/0037 , Y10T307/297
摘要: An inductive power transfer system comprises a primary unit 10, having a primary coil 12 and an electrical drive unit 14 which applies electrical drive signals to the primary coil so as to generate an electromagnetic field. The system also comprises at least one secondary device 30, separable from the primary unit and having a secondary coil 32 which couples with the field when the secondary device is in proximity to the primary unit. A control unit 16 causes a circuit including said primary coil to operate, during a measurement period, in an undriven resonating condition. In this condition the application of the drive signals to the primary coil by the electrical drive unit is suspended so that energy stored in the circuit decays over the course of the period. A decay measurement unit 18 takes one or more measures of such energy decay during the measurement period. In dependence upon said one or more energy decay measures, the control unit controls the electrical drive unit so as to restrict or stop inductive power transfer from the primary unit.
摘要翻译: 感应电力传输系统包括主单元10,其具有初级线圈12和电驱动单元14,其将电驱动信号施加到初级线圈以便产生电磁场。 该系统还包括至少一个次级装置30,其可与主单元分离并且具有次级线圈32,当次级装置接近初级装置时,它与该场耦合。 控制单元16使得包括所述初级线圈的电路在测量周期期间在未驱动的谐振条件下操作。 在这种情况下,通过电驱动单元将驱动信号施加到初级线圈被暂停,使得存储在电路中的能量在该周期的过程中衰减。 衰减测量单元18在测量周期期间采取这种能量衰减的一个或多个措施。 根据所述一个或多个能量衰减措施,控制单元控制电驱动单元以限制或停止从主单元的感应功率传递。
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公开(公告)号:US08035340B2
公开(公告)日:2011-10-11
申请号:US12885445
申请日:2010-09-18
CPC分类号: H02J50/12 , H02J5/005 , H02J7/025 , H02J17/00 , H02J50/10 , H02J50/40 , H02J50/60 , H02J50/80 , H04B5/0037 , Y10T307/297
摘要: An inductive power transfer system comprises a primary unit, having a primary coil and an electrical drive unit which applies electrical drive signals to the primary coil so as to generate an electromagnetic field. The system also comprises at least one secondary device, separable from the primary unit and having a secondary coil which couples with the field when the secondary device is in proximity to the primary unit. A control unit causes a circuit including said primary coil to operate, during a measurement period, in an undriven resonating condition. In this condition the application of the drive signals to the primary coil by the electrical drive unit is suspended so that energy stored in the circuit decays over the course of the period. A decay measurement unit takes one or more measures of such energy decay during the measurement period. In dependence upon said one or more energy decay measures, the control unit controls the electrical drive unit so as to restrict or stop inductive power transfer from the primary unit.
摘要翻译: 感应电力传输系统包括具有初级线圈的主单元和向初级线圈施加电驱动信号以产生电磁场的电驱动单元。 该系统还包括至少一个次级装置,其可与主单元分离并且具有次级线圈,当次级装置接近初级装置时,它与该场耦合。 控制单元使得包括所述初级线圈的电路在测量周期期间在未驱动的谐振条件下操作。 在这种情况下,通过电驱动单元将驱动信号施加到初级线圈被暂停,使得存储在电路中的能量在该周期的过程中衰减。 衰减测量单元在测量期间采取这种能量衰减的一种或多种措施。 根据所述一个或多个能量衰减措施,控制单元控制电驱动单元以限制或停止从主单元的感应功率传递。
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