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公开(公告)号：US09660514B2
公开(公告)日：2017-05-23
申请号：US14463439
申请日：2014-08-19
CPC分类号： H02M1/14 , H02J7/025 , H02J17/00 , H02J50/10 , H02J50/12 , H02J50/80 , H02M1/4208 , H02M1/4225 , H02M2001/007 , Y02B70/126
摘要： A power feeding device of a non-contact charging device includes a power factor improvement circuit which converts an AC power supply to DC, and improves a power factor, a smoothing capacitor connected to an output end of the power factor improvement circuit, an inverter circuit which includes a plurality of switching elements, and generates an AC signal using a voltage of the smoothing capacitor as a power supply, a power feeding section which feeds power based on the AC signal to a power receiving device, and a control circuit which modulates a duty factor of each of the switching elements of the inverter circuit in synchronization with the AC power supply, wherein the control circuit controls the plurality of switching elements so that an increment of the modulated duty factor is not equal to a decrement of the modulated duty factor.
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公开(公告)号：US09555713B2
公开(公告)日：2017-01-31
申请号：US14198944
申请日：2014-03-06
发明人： Atsushi Fujita , Yoshihiro Sakamoto , Yoshiharu Omori , Hideki Sadakata , Takashi Kashimoto , Hiroaki Kurihara
CPC分类号： B60L11/1811 , B60L11/182 , B60L2270/147 , H01F38/14 , H02J7/025 , H02J7/027 , H02J50/10 , H02J50/60 , H02J50/80 , H02J50/90 , Y02T10/7005 , Y02T10/7072 , Y02T90/122 , Y02T90/127 , Y02T90/14
摘要： A contactless power transmission device includes a power receiver, a power feeder configured to contactlessly feed power to the power receiver, the power feeder including a primary coil configured to generate magnetic flux by an input alternating current voltage, and a cover configured to cover the primary coil, and a capacitive sensor configured to supply an alternating current voltage to an electrode to measure a capacitance occurring between the electrode and foreign matter present around the cover and thereby detect the foreign matter. The frequency of the alternating current voltage of the capacitive sensor is set to be higher than the frequency of the magnetic flux generated by the primary coil.
摘要翻译： 一种非接触式电力传输装置，包括电力接收器，被配置为向电力接收器非接触地供电的馈电器，所述馈电器包括被配置为通过输入交流电压产生磁通量的初级线圈，以及被配置为覆盖所述主电源 线圈和电容传感器，其被配置为向电极提供交流电压以测量电极与存在于盖周围的异物之间发生的电容，从而检测异物。 将电容式传感器的交流电压的频率设定为高于由初级线圈产生的磁通的频率。
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3.发明授权公开(公告)号：US09704643B2
公开(公告)日：2017-07-11
申请号：US14199283
申请日：2014-03-06
CPC分类号： H01F38/14 , B60L11/182 , B60L11/1824 , B60L11/1833 , B60L11/1846 , B60L2200/26 , B60L2210/30 , B60L2210/40 , B60L2230/16 , B60L2240/36 , B60L2250/10 , B60L2250/16 , B60L2270/147 , G01R27/2605 , H02J5/005 , H02J7/025 , H02J50/10 , H02J50/12 , H02J50/60 , H02J50/80 , H04B5/0031 , H04B5/0037 , H04B5/0081 , Y02T10/7005 , Y02T10/7088 , Y02T10/7241 , Y02T90/121 , Y02T90/122 , Y02T90/125 , Y02T90/127 , Y02T90/128 , Y02T90/14 , Y02T90/163 , Y02T90/169 , Y04S30/14
摘要： A power feeder of a contactless power transmission device includes a housing base member, a primary coil provided on the housing base member and configured to generate magnetic flux, a cover attached to the housing base member and configured to cover the primary coil, a capacitance sensor including a detection electrode between the primary coil and the cover, and configured to detect foreign matter around the cover based on a change in capacitance detected using the detection electrode, and a high-dielectric member embedded in the cover and having a permittivity higher than that of a material for the cover.
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公开(公告)号：US09755500B2
公开(公告)日：2017-09-05
申请号：US14463381
申请日：2014-08-19
CPC分类号： H02M1/14 , H02J7/025 , H02J17/00 , H02J50/10 , H02J50/12 , H02J50/80 , H02M1/4208 , H02M1/4225 , H02M2001/007 , H04B5/00 , Y02B70/126
摘要： A power feeding device of a non-contact charging device includes a power factor improvement circuit which converts an AC power supply to DC, and improves a power factor, a smoothing capacitor connected to an output end of the power factor improvement circuit, an inverter circuit which includes a plurality of switching elements, and generates an AC signal using a voltage of the smoothing capacitor as a power supply, a power feeding section which feeds power based on the AC signal to a power receiving device, and a control circuit which modulates at least one of a duty factor or an operation frequency of each of the switching elements of the inverter circuit in synchronization with the AC power supply.
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公开(公告)号：US09524823B2
公开(公告)日：2016-12-20
申请号：US14193965
申请日：2014-02-28
摘要： A coil unit configured to transmit or receive electric power by electromagnetic induction in a noncontact manner, including: a coil into or from both terminals of which a high-frequency voltage is input or output; a metal conductor placed near the coil; and a first capacitor and a second capacitor connected to the terminals of the coil, wherein the ratio of the capacitance between the first capacitor and the second capacitor is set to a value at which a current induced into the metal conductor due to capacitance coupling when a high-frequency voltage is input into or output from the coil is reduced.
摘要翻译： 一种线圈单元，被配置成以非接触方式通过电磁感应发送或接收电力，包括：输入或输出高频电压的两端的线圈; 放置在线圈附近的金属导体; 以及连接到所述线圈的端子的第一电容器和第二电容器，其中所述第一电容器和所述第二电容器之间的电容的比率被设定为当由于电容耦合而导致的金属导体的电流的值 高频电压输入或输出线圈减少。
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