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公开(公告)号：US20150288276A1
公开(公告)日：2015-10-08
申请号：US14680209
申请日：2015-04-07
Applicant: DENSO CORPORATION
Inventor： Kenta HATAKENAKA , Katsutoyo MISAWA , Yuuichi HANDA , Yuuki TAKEMOTO
CPC classification number: H02M1/44 , H01F27/2847 , H01F27/303 , H01F27/306 , H02M3/28 , H02M3/33569 , H02M3/337
Abstract: A power supply apparatus includes a transformer which has a primary coil and a secondary coil, a primary side semiconductor component which configures a primary side circuit connected to a side of the primary coil of the transformer, a secondary side semiconductor component which configures a secondary side circuit connected to a side of the secondary coil of the transformer, a choke coil which is connected to the secondary side semiconductor component, and a base plate on which the transformer, the primary side semiconductor component, the secondary side semiconductor component, and the choke coil are mounted. Any two of the transformer, the primary side semiconductor component, the secondary side semiconductor component, and the choke coil configure a first stacked body stacked in a normal direction of the base plate, and other two of the transformer, the primary side semiconductor component, the secondary side semiconductor component, and the choke coil configure a second stacked body stacked in the normal direction of the base plate. The power supply apparatus has a pair of first lines connecting the primary side semiconductor component and the transformer to each other, and a pair of second lines connecting the transformer and the secondary side semiconductor component to each other. The first lines and the second lines respectively have a pair of first current paths and a pair of second current paths which are arranged so as to be adjacent to each other and are configured so that currents flow in the normal direction of the base plate. At least one of the pair of the second current paths is adjacent to at least one of the pair of the first current paths in a second direction orthogonal to a first direction in which the pair of the first current paths are adjacent to each other. The first current paths and the second current paths adjacent to each other in the second direction are configured so that currents flow therethrough in directions opposite to each other.
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公开(公告)号：US20150280591A1
公开(公告)日：2015-10-01
申请号：US14667894
申请日：2015-03-25
Applicant: DENSO CORPORATION
Inventor： Yuuichi HANDA , Seiji IYASU , Kimikazu NAKAMURA
IPC: H02M3/335
CPC classification number: H02M3/33546 , H02M1/08 , H02M1/32 , H02M1/4225 , H02M1/4233 , H02M3/1584 , H02M3/33507 , H02M3/33569 , H02M2001/0009 , H02M2001/007 , Y02B70/126
Abstract: A power conversion apparatus for converting AC power supplied from an AC power source to DC power includes an AC-DC conversion circuit connected with the AC power source at an input end thereof for converting the AC power to DC power, a DC-DC conversion circuit connected with an output end of the AC-DC conversion circuit at an input end thereof for converting DC voltage level of the DC power generated by the AC-DC conversion circuit, a smoothing capacitor parallel connected to the output end of the AC-DC conversion circuit and the input end of the DC-DC conversion circuit, a DC link voltage detector for detecting a voltage of the smoothing capacitor as a DC link voltage, and a control unit for controlling operation of the DC-DC conversion circuit. The control unit suppresses output power of the DC-DC conversion circuit if the DC link voltage is
Abstract translation: 用于将从AC电源提供的AC电力转换为DC电力的电力转换装置包括：AC电源转换电路，其与AC电源在其输入端连接，用于将AC电力转换为DC电力; DC-DC转换电路 与AC-DC转换电路的输出端连接，用于转换由AC-DC转换电路产生的直流电力的直流电压电平，平滑电容并联连接到AC-DC转换的输出端 电路和DC-DC转换电路的输入端，用于检测作为直流链路电压的平滑电容器的电压的直流链路电压检测器和用于控制DC-DC转换电路的操作的控制单元。 如果DC链路电压为负，则控制单元抑制DC-DC转换电路的输出功率
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公开(公告)号：US20170033696A1
公开(公告)日：2017-02-02
申请号：US15222628
申请日：2016-07-28
Applicant: DENSO CORPORATION
Inventor： Yuuichi HANDA , Seiji IYASU , Kimikazu NAKAMURA
CPC classification number: H02M3/33584
Abstract: A power conversion apparatus includes a power conversion circuit, a choke coil, an auxiliary coil, and a rectifier element. The choke coil is disposed between the power conversion circuit and an input side direct current power source. The auxiliary coil is magnetically coupled to the choke coil and is connected in parallel with an output side circuit. The auxiliary coil is wound in a direction so that an excitation current flows from a negative electrode to a positive electrode of the output side circuit when an excitation current flows from a positive electrode to a negative electrode of the direct current power source through the choke coil. The rectifier element is series connection with the auxiliary coil, and cuts off power supply from the direct current power source to the output side circuit through the auxiliary coil and power supply from the output side circuit to the input side.
Abstract translation: 电力转换装置包括电力转换电路，扼流线圈，辅助线圈和整流元件。 扼流线圈设置在电力转换电路和输入侧直流电源之间。 辅助线圈磁耦合到扼流圈并与输出侧电路并联连接。 当激励电流通过扼流线圈从直流电源的正电极流向负电极时，辅助线圈沿着使得激励电流从输出侧电路的负极流向正电极的方向缠绕 。 整流元件与辅助线圈串联连接，并通过辅助线圈和从输出侧电路到输入侧的电源切断直流电源到输出侧电路的电源。
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公开(公告)号：US20140009971A1
公开(公告)日：2014-01-09
申请号：US13936710
申请日：2013-07-08
Applicant: NIPPON SOKEN, INC. , DENSO CORPORATION
Inventor： Hideki ITOU , Yuuichi HANDA , Yuji HAYASHI
IPC: H02M3/335
CPC classification number: H02M3/33507 , H02M1/44 , H02M3/33569
Abstract: An electric power converter has a switching circuit section, a transformer, a rectifier, and a noise filtering element. The rectifier is connected to a secondary coil of the transformer. A closed circuit where the noise current flows is formed by the secondary coil, the rectifier, and the noise filtering element. The transformer and the noise filtering element are disposed in a position next to each other. The secondary coil and the noise filtering element are electrically connected to each other through a terminal for a coil that is a terminal of the secondary coil and a terminal for a filter that is a terminal of the noise filtering element. The terminal for the coil and the terminal for the filter are disposed in a position between the transformer and the noise filtering element.
Abstract translation: 电力转换器具有开关电路部分，变压器，整流器和噪声滤波元件。 整流器连接到变压器的次级线圈。 噪声电流流过的闭路由次级线圈，整流器和噪声滤波元件形成。 变压器和噪声滤波元件设置在彼此相邻的位置。 次级线圈和噪声滤波元件通过作为次级线圈的端子的线圈的端子和作为噪声滤波元件的端子的滤波器的端子彼此电连接。 用于线圈的端子和用于滤波器的端子设置在变压器和噪声滤波元件之间的位置。
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公开(公告)号：US20220263411A1
公开(公告)日：2022-08-18
申请号：US17734761
申请日：2022-05-02
Applicant: DENSO CORPORATION
Inventor： Naoto KOBAYASHI , Syuji KURAUCHI , Yuuichi HANDA
Abstract: An electric power conversion apparatus has an input and output terminal, and a switch unit, and turns on and off the switch unit to transfer electric power from an electric storage unit connected to the input terminal to a power supply target connected to the output terminal. When reverse conduction current flows in the switch unit, it causes a larger conduction loss in an off state than an on state. The apparatus includes: a control unit that determines whether there is a request for increasing an amount of heat generation due to the electric power transfer, and when it is determined that there is the request, turns off the switch unit in which the reverse conduction current flows during the electric power transfer and, when it is determined that there is no request, turns on the switch unit in which the reverse conduction current flows during the electric power transfer.
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Patent Agency Ranking
公开(公告)号：US20220131401A1
公开(公告)日：2022-04-28
申请号：US17570057
申请日：2022-01-06
Applicant: DENSO CORPORATION
Inventor： Naoto KOBAYASHI , Syuji KURAUCHI , Yuuichi HANDA
IPC: H02J7/00 , B60L58/25 , B60L53/60 , H02M3/335 , H01M10/633 , H01M10/625 , H01M10/6571 , H01M10/6567
Abstract: A power supply system includes a power conversion circuit that is connectable to a power storage unit. The power supply system includes a control unit and a heat transferring unit. The control unit supplies a current between the power storage unit and the power conversion circuit by performing on-off control of a switch that configures the power conversion circuit. The heat transferring unit absorbs heat that is generated in the power conversion circuit in accompaniment with the on-off control of the switch and transfers the heat to a temperature-increase target element. The control unit performs temperature-increase mode control in which the switch is on-off controlled such that an amount of heat that is generated in the power conversion circuit is increased when a temperature-increase request for the temperature-increase target element is present, compared to when the temperature-increase request is not present.
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公开(公告)号：US20160157381A1
公开(公告)日：2016-06-02
申请号：US14919161
申请日：2015-10-21
Applicant: DENSO CORPORATION
Inventor： Kazuya TAKEUCHI , Makoto OKAMURA , Yuuichi HANDA , Naoki HIRASAWA , Hiromi ICHIJO , Ryota TANABE , Tetsuya MATSUOKA
CPC classification number: H05K7/20927 , H01G2/08 , H01G4/236 , H01G4/35 , H01G4/40 , H01L23/473 , H01L2023/4025 , H02M7/003 , Y02T10/7022
Abstract: An electric power converter includes a semiconductor module constituting a power conversion circuit, a capacitor electrically connected to the semiconductor module, and a cooling member for cooling the capacitor. The capacitor includes an element body provided with internal electrode, and a pair of end-face-electrodes provided on both end faces of the element body and connected to the internal electrode. The pair of end-face-electrodes are connected with a pair of bus bars, respectively, in a manner of surface contact. The capacitor is disposed in a state where one of the pair of end-face-electrodes is facing the cooling member. The end-face-electrode facing the cooling member is in contact with the cooling member via the bus bar.
Abstract translation: 电力转换器包括构成功率转换电路的半导体模块，与半导体模块电连接的电容器和用于冷却电容器的冷却构件。 电容器包括设置有内部电极的元件本体和设置在元件体的两个端面上并连接到内部电极的一对端面电极。 一对端面电极分别与一对母线以表面接触的方式连接。 电容器设置在一对端面电极中的一个面对冷却部件的状态。 面向冷却部件的端面电极经由母线与冷却部件接触。
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公开(公告)号：US20150029757A1
公开(公告)日：2015-01-29
申请号：US14338783
申请日：2014-07-23
Applicant: DENSO CORPORATION
Inventor： Shuji KURAUCHI , Katsutoyo MISAWA , Yuuki TAKEMOTO , Yuuichi HANDA , Shotaro YAMASAKI
CPC classification number: H02M3/335 , H01F27/06 , H02M3/00 , H05K7/1432
Abstract: An electric power source device has a transformer, primary side semiconductor components, secondary side semiconductor components, a choke coil, a base plate and first circuit substrate and one or more second circuit substrates. The transformer has a primary side coil and a secondary side coil. The primary side semiconductor components form a primary side circuit connected to the primary side coil. The secondary side semiconductor components form a secondary side circuit connected to the secondary side coil. The choke coil has a smoothing circuit for smoothing an output voltage. The transformer, the primary side semiconductor components, the secondary side semiconductor components and the choke coil are formed on the base plate. The first circuit substrate is arranged parallel to the base plate. The second circuit substrate is arranged parallel to a normal line of the first circuit substrate.
Abstract translation: 电源装置具有变压器，初级侧半导体部件，二次侧半导体部件，扼流线圈，基板和第一电路基板以及一个以上的第二电路基板。 变压器具有初级侧线圈和次级侧线圈。 初级侧半导体元件形成连接到初级侧线圈的初级侧电路。 次级侧半导体部件形成与次级侧线圈连接的次级侧电路。 扼流线圈具有用于平滑输出电压的平滑电路。 变压器，初级侧半导体部件，次级侧半导体部件和扼流线圈形成在基板上。 第一电路基板平行于基板设置。 第二电路基板平行于第一电路基板的法线布置。
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公开(公告)号：US20220271684A1
公开(公告)日：2022-08-25
申请号：US17709806
申请日：2022-03-31
Applicant: DENSO CORPORATION
Inventor： Seiji IYASU , Syuji KURAUCHI , Yuuichi HANDA
Abstract: A power converter includes a full-bridge circuit, power converting circuit, transformer, and controller. The full-bridge circuit includes a series-connected unit made of first and second switches and a series-connected unit made of third and fourth switches and is connected to power transmitting terminals. The power converting circuit is connected to power receiving terminals. The transformer includes power transmitting coil and power receiving coil. The power transmitting coil is connected to full-bridge circuit. The power receiving coil is connected to power converting circuit. The controller turns on the first and second switches alternately and also the third and fourth switches alternately. A resistive load is connected to the power receiving terminals. The controller serves to determine a phase difference between the time when first switch is turned on and the time when third switch is turned on to decrease with a decrease in measured voltage developed at the power receiving terminals.
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公开(公告)号：US20170110972A1
公开(公告)日：2017-04-20
申请号：US15390763
申请日：2016-12-27
Applicant: DENSO CORPORATION
Inventor： Yuuichi HANDA , Seiji IYASU , Kimikazu NAKAMURA
CPC classification number: H02M3/33546 , H02M1/08 , H02M1/32 , H02M1/4225 , H02M1/4233 , H02M3/1584 , H02M3/33507 , H02M3/33569 , H02M2001/0009 , H02M2001/007 , Y02B70/126
Abstract: A power conversion apparatus for converting AC power supplied from an AC power source to DC power includes an AC-DC conversion circuit connected with the AC power source at an input end thereof for converting the AC power to DC power, a DC-DC conversion circuit connected with an output end of the AC-DC conversion circuit at an input end thereof for converting DC voltage level of the DC power generated by the AC-DC conversion circuit, a smoothing capacitor parallel connected to the output end of the AC-DC conversion circuit and the input end of the DC-DC conversion circuit, a DC link voltage detector for detecting a voltage of the smoothing capacitor as a DC link voltage, and a control unit for controlling operation of the DC-DC conversion circuit. The control unit suppresses an output power of the DC-DC conversion circuit, if the DC link voltage is smaller than a predetermined value.
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