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公开(公告)号：US20220231347A1
公开(公告)日：2022-07-21
申请号：US17716315
申请日：2022-04-08
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kiyokazu YAMADA , Tatsuya HOSOTANI , Tomohiro KATO , Mitsuyoshi NISHIDE
IPC: H01M10/46 , H01M10/42 , H01M10/0525 , H01M50/14 , H01M50/124 , H02J50/10 , H02J7/00
Abstract: A wireless rechargeable solid-state battery module includes a solid-state battery; an internal structure including an internal circuit electrically connected with the battery; positive and negative electrode terminals, each of which is electrically connected with the solid-state battery, is exposed on an outer surface, and is where the positive or negative electrode terminal can be mounted on an electronic circuit board; barrier layers that entirely or partially contain a conductor and isolate the battery and the internal structure from an outside air environment; and a power receiving terminal electrically connected with an external circuit, which includes a power receiving coil coupled with an external electromagnetic or magnetic field, is electrically connected with the internal circuit, and is in an outside of the barrier layers. The power receiving coil converts the external electromagnetic or magnetic field into electrical energy and supplies current to the internal circuit via the power receiving terminal.
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公开(公告)号：US20200169120A1
公开(公告)日：2020-05-28
申请号：US16777791
申请日：2020-01-30
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Tatsuya HOSOTANI
Abstract: A high-frequency power supply device includes a power transmission coil, a high-frequency power circuit which converts direct-current power input from a direct-current power supply into high-frequency power and supply the high-frequency power to the power transmission coil, a detection circuit which detects a voltage based on a circuit operation of the high-frequency power circuit and output a detected voltage, a control circuit configured to control a circuit operation of the high-frequency power circuit and to determine a command value used to protect the high-frequency power supply device based on information externally input into a processor, a D/A converter which performs D/A conversion upon receiving the command value output from the control circuit and output a command voltage, and a comparator which compares the command voltage and the detected voltage with each other and output a stop signal used to stop a circuit operation of the high-frequency power supply device.
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公开(公告)号：US20170207706A1
公开(公告)日：2017-07-20
申请号：US15477837
申请日：2017-04-03
Applicant: MURATA MANUFACTURING CO., LTD.
Inventor： Tatsuya HOSOTANI
CPC classification number: H02M3/22 , H01F2038/146 , H02J5/005 , H02J50/12 , H02J50/80 , H02M3/07 , H02M3/3376 , H02M2001/0058
Abstract: A switching control circuit alternately turns on/off, at a switching frequency at which the impedance of a multi-resonant circuit becomes inductive, switching elements with a dead time therebetween. In an operation in the third quadrant of current-voltage characteristics of the switching elements, the switching elements are turned on by supplying a control signal to control terminals of the switching elements, and a dead time is determined so as to satisfy tc≦td
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公开(公告)号：US20150333801A1
公开(公告)日：2015-11-19
申请号：US14811252
申请日：2015-07-28
Applicant: MURATA MANUFACTURING CO., LTD.
Inventor： Tatsuya HOSOTANI
CPC classification number: H04B5/0037 , H01F38/14 , H02J5/005 , H02J7/025 , H02J50/12 , H02J50/40 , H02J50/50 , H04B1/04 , H04B1/16 , H04B5/0012 , H04B5/0081
Abstract: A power transmitter coil, a power transmitter circuit, and a direct-current power source constitute a power transmitter unit. Further, a power receiver coil, a power receiver circuit, and a load constitute a power receiver unit. Further, a resonator coil and a resonator circuit constitute a resonator unit. In the power transmitter unit, electric energy of the direct-current power source is directly converted into electromagnetic energy, a resonant field is expanded by making resonance currents of the same frequency to flow in the power transmitter coil and the resonator coil, and in the power receiver unit, electromagnetic energy of the resonant field is directly converted into electric energy, thereby transmitting electric power from the power transmitter unit to the power receiver unit.
Abstract translation: 功率发射器线圈，功率发射器电路和直流电源构成功率发射器单元。 此外，受电器线圈，功率接收器电路和负载构成功率接收器单元。 此外，谐振器线圈和谐振器电路构成谐振器单元。 在功率发射单元中，直流电源的电能直接转换为电磁能，通过使相同频率的谐振电流在功率发送线圈和谐振器线圈中流动而使谐振场扩展，在 受电单元，谐振场的电磁能直接转换为电能，从而将电力从功率发射单元传输到电力接收单元。
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公开(公告)号：US20140334185A1
公开(公告)日：2014-11-13
申请号：US14444054
申请日：2014-07-28
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Tatsuya HOSOTANI
IPC: H02M3/24
CPC classification number: H02M3/24 , H01M10/44 , H02J7/0068 , H02J7/34 , H02M7/2176 , H02M2001/0032 , H02M2001/0048 , Y02B40/90 , Y02B70/1491 , Y02B70/16
Abstract: A switching power supply apparatus includes an isolated converter that has efficiency characteristics in which power conversion efficiency at a rated load is higher than power conversion efficiency at a light load and that converts power-supply voltage into direct-current voltage to output the direct-current voltage; an FET that switches supply and shutoff of the power-supply voltage to the isolated converter; a secondary battery that stores the direct-current voltage output from the isolated converter; a voltage detector that detects an amount of charge in the secondary battery; and a controller that switches the FET on the basis of the amount of charge in the secondary battery.
Abstract translation: 开关电源装置包括具有效率特性的隔离转换器，其中额定负载下的电力转换效率高于轻负载时的功率转换效率，并且将电源电压转换为直流电压以输出直流电 电压; 将电源电压的供应和切断切换到隔离转换器的FET; 存储来自所述隔离变换器的直流电压输出的二次电池; 电压检测器，其检测二次电池中的电荷量; 以及基于二次电池中的电荷量来切换FET的控制器。
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Patent Agency Ranking
公开(公告)号：US20140328098A1
公开(公告)日：2014-11-06
申请号：US14336065
申请日：2014-07-21
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Tatsuya HOSOTANI
IPC: H02M7/217
CPC classification number: H02M7/217 , H01M10/44 , H02J7/0068 , H02J7/0081 , H02J7/345 , H02J9/005 , H02M3/24 , H02M3/33507 , H02M3/33515 , H02M3/33523 , H02M3/33569 , H02M3/33576 , H02M2001/0035 , H02M2001/007 , Y02B70/16
Abstract: A switching power supply apparatus includes an isolated converter with efficiency characteristics in which power conversion efficiency of a rated load is higher than power conversion efficiency of a light load and that converts power-supply voltage into direct-current voltage to output the direct-current voltage, a secondary battery that stores the direct-current voltage output from the isolated converter; a voltage detector that detects an amount of charge in the secondary battery; and a controller that switches driving and stopping of the isolated converter on the basis of the detected amount of charge.
Abstract translation: 开关电源装置包括具有效率特性的隔离变换器，其中额定负载的电力转换效率高于轻负载的功率转换效率，并且将电源电压转换为直流电压以输出直流电压 存储来自所述隔离变换器的直流电压输出的二次电池; 电压检测器，其检测二次电池中的电荷量; 以及基于检测到的电荷量来切换隔离转换器的驱动和停止的控制器。
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公开(公告)号：US20230361683A1
公开(公告)日：2023-11-09
申请号：US18353369
申请日：2023-07-17
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Tatsuya HOSOTANI
CPC classification number: H02M3/1586 , H02M1/0009 , H02M1/0025
Abstract: A power supply system apparatus includes a plurality of power conversion circuits and an MPU. The MPU outputs oscillation control signals to the plurality of power conversion circuits. Each of the plurality of power conversion circuits includes a pulse width modulation control circuit formed of an analog electronic circuit. For example, the power conversion circuit drives switching elements on the basis of a feedback signal obtained by detecting an output voltage of a common output terminal. An integrated system controller including the MPU and the plurality of power conversion circuits includes a plurality of individual voltage feedback control loops for individually controlling the plurality of power conversion circuits on the basis of feedback signals and supplies power to a load, while the plurality of power conversion circuits performing driving control using the individual voltage feedback control loops at the same time.
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公开(公告)号：US20230308023A1
公开(公告)日：2023-09-28
申请号：US18188289
申请日：2023-03-22
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hiroyuki TAKATSUJI , Tatsuya HOSOTANI
CPC classification number: H02M3/33523 , H02M1/0064 , H02M1/123
Abstract: A switching power-supply unit includes a power conversion circuit, a control circuit, a class-Y capacitor, and a common-mode choke coil. The control circuit has a direct electrical connection to the power conversion circuit. The class-Y capacitor is connected to the power conversion circuit on its side of a direct-current power supply, and is connected to the ground potential. The common-mode choke coil is connected to the control circuit on its side of a direct-current power supply. A noise balancing circuit is formed of a closed circuit including the power conversion circuit, the control circuit, the class-Y capacitor, and the common-mode choke coil. The noise balancing circuit causes common-mode currents to be confined and canceled out each other. The common-mode currents serve as switching noise generated in multiple parts of the closed circuit due to a switching operation of power-conversion switching devices.
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公开(公告)号：US20230016857A1
公开(公告)日：2023-01-19
申请号：US17933625
申请日：2022-09-20
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Tatsuya HOSOTANI , Norikazu SAKAMOTO
IPC: H02M3/158
Abstract: A multi-converter power supply system includes a plurality of cell converters, a common node to which an individual output terminal of each of the plurality of cell converters is connected, a current waveform signal generation circuit that generates a current waveform signal corresponding to a current waveform flowing through an individual inductor, a current average signal generation circuit that generates a current average signal by averaging temporal changes that the current waveform signal has in a switching period of a switching control circuit, and an instrumentation amplifier that receives input of a current common signal obtained from the common node and the current average signal and that generates an individual current feedback signal to be fed back to the switching control circuit.
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公开(公告)号：US20220362561A1
公开(公告)日：2022-11-17
申请号：US17814286
申请日：2022-07-22
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Koyo KAIWA , Takahiro NAGAI , Tatsuya HOSOTANI
Abstract: An in vivo-implantable medical device includes a housing that includes a body part and a protruding part, and that forms a sealed inner space; a power-receiving coil in a part of the inner space and that receives power by interlinking with external magnetic flux generated by an AC current flowing in an externally located power-transmitting coil; and a circuit substrate including a power reception circuit electrically connected to the power-receiving coil. The body part includes a metallic biocompatible material and the protruding part includes a non-metallic biocompatible material. The protruding part is structured so that, for a magnetic path along which the external magnetic flux passes, a magnetic path in which the magnetic flux interlinks with the power-receiving coil while avoiding the body part is formed, and the protruding part reduces eddy current loss caused by eddy currents generated by the external magnetic flux interlinking with the body part.
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