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31. 发明申请

US20130088896A1 SWITCHING CONTROL CIRCUIT AND SWITCHING POWER SUPPLY APPARATUS 有权
标题翻译：切换控制电路和切换电源设备
公开(公告)号：US20130088896A1
公开(公告)日：2013-04-11
申请号：US13692038
申请日：2012-12-03
申请人： Murata Manufacturing Co., Ltd.
发明人： Tatsuya HOSOTANI
IPC分类号： H02M3/335
CPC分类号： H02M3/33569 , H02M1/36 , H02M3/33507 , H02M3/33538
摘要： In a switching control circuit, a length of a soft start period is set by a time constant of an external circuit that is connected to a soft start terminal of a switching control IC. After a voltage of the soft start terminal has reached a predetermined voltage at the termination of the soft start period, the on-pulse period of a first switching device is limited by a maximum value. When a Zener diode is connected between the soft start terminal and ground, the upper limit voltage of the soft start terminal is a Zener voltage and, hence, the maximum on-pulse period is limited by this voltage. As a result, the switching control circuit and a switching power supply apparatus, which have a soft start function and a power limiting function, are reduced in size and cost by limiting the number of terminals.
摘要翻译：在开关控制电路中，通过连接到开关控制IC的软启动端子的外部电路的时间常数来设定软启动时段的长度。在软启动周期结束后软启动端子的电压达到预定电压之后，第一开关器件的导通脉冲周期被限制在最大值。当软启动端子和地之间连接齐纳二极管时，软启动端子的上限电压为齐纳电压，因此最大导通脉冲周期受该电压的限制。结果，通过限制端子的数量，具有软启动功能和功率限制功能的开关控制电路和开关电源装置的尺寸和成本被减小。

32. 发明公开

US20230361683A1 POWER SUPPLY SYSTEM APPARATUS 审中-公开
公开(公告)号：US20230361683A1
公开(公告)日：2023-11-09
申请号：US18353369
申请日：2023-07-17
申请人： Murata Manufacturing Co., Ltd.
发明人： Tatsuya HOSOTANI
IPC分类号： H02M3/158 , H02M1/00
CPC分类号： H02M3/1586 , H02M1/0009 , H02M1/0025
摘要： 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.

33. 发明公开

US20230308023A1 SWITCHING POWER-SUPPLY UNIT 审中-公开
公开(公告)号：US20230308023A1
公开(公告)日：2023-09-28
申请号：US18188289
申请日：2023-03-22
申请人： Murata Manufacturing Co., Ltd.
发明人： Hiroyuki TAKATSUJI , Tatsuya HOSOTANI
IPC分类号： H02M1/12 , H02M3/335 , H02M1/00
CPC分类号： H02M3/33523 , H02M1/0064 , H02M1/123
摘要： 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.

34. 发明申请

US20230016857A1 MULTI-CONVERTER POWER SUPPLY SYSTEM 有权
公开(公告)号：US20230016857A1
公开(公告)日：2023-01-19
申请号：US17933625
申请日：2022-09-20
申请人： Murata Manufacturing Co., Ltd.
发明人： Tatsuya HOSOTANI , Norikazu SAKAMOTO
IPC分类号： H02M3/158
摘要： 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.

35. 发明申请

US20220362561A1 VIVO-IMPLANTABLE MEDICAL DEVICE 有权
公开(公告)号：US20220362561A1
公开(公告)日：2022-11-17
申请号：US17814286
申请日：2022-07-22
申请人： Murata Manufacturing Co., Ltd.
发明人： Koyo KAIWA , Takahiro NAGAI , Tatsuya HOSOTANI
IPC分类号： A61N1/378 , H02J50/12
摘要： 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.

36. 发明申请

US20220231539A1 WIRELESS RECHARGEABLE SOLID-STATE BATTERY MODULE 有权
公开(公告)号：US20220231539A1
公开(公告)日：2022-07-21
申请号：US17716294
申请日：2022-04-08
申请人： Murata Manufacturing Co., Ltd.
发明人： Kiyokazu YAMADA , Tatsuya HOSOTANI , Tomohiro KATO , Mitsuyoshi NISHIDE
IPC分类号： H02J50/10 , H01M10/46 , H01M10/48 , H02J7/00
摘要： A wireless rechargeable solid-state battery module includes a solid-state battery; internal structures that are provided with an internal circuit electrically connected with the solid-state battery; a barrier layer that isolates the solid-state battery from an outside air environment; and a positive electrode terminal and a negative electrode terminal each of which is electrically connected with the solid-state battery, is exposed on an outer surface, and is arranged so that the positive electrode terminal or the negative electrode terminal can be mounted on a mounting board. The internal circuit includes a wireless charging circuit that receives power from an outside via an electromagnetic field or a magnetic field produced by power transmission from the outside and controls charging to the solid-state battery.

37. 发明申请

US20220094203A1 POWER RECEIVER FOR WIRELESS POWER SUPPLY SYSTEM AND ELECTRONIC DEVICE 有权
公开(公告)号：US20220094203A1
公开(公告)日：2022-03-24
申请号：US17539958
申请日：2021-12-01
申请人： Murata Manufacturing Co., Ltd.
发明人： Kiyokazu YAMADA , Osamu MIKI , Tatsuya HOSOTANI
IPC分类号： H02J50/00 , H02J50/12 , H02J7/00
摘要： A power receiver includes an outer case shaped to house a secondary battery, a power reception coil member disposed in the outer case, and a circuit board disposed in the outer case. On the circuit board, a power reception circuit electrically connected to a coil conductor of the power reception coil member and a charging circuit configured to charge and discharge the secondary battery are provided. The outer case includes a first outer case member near the power reception coil member and a second outer case member forming the outer case in combination with the first outer case member. The first outer case member has, for example, a flat surface, is disposed nearer to an external power transmission coil than the second outer case member, and has a structure with which the coil conductor of the power reception coil member and the power transmission coil can face each other.

38. 发明申请

US20210408835A1 POWER RECEPTION DEVICE FOR WIRELESS POWER SUPPLY SYSTEM 有权
公开(公告)号：US20210408835A1
公开(公告)日：2021-12-30
申请号：US17472356
申请日：2021-09-10
申请人： Murata Manufacturing Co., Ltd.
发明人： Osamu MIKI , Tatsuya HOSOTANI
IPC分类号： H02J50/40 , H02J7/02 , H02J50/12 , H02J50/70
摘要： A power reception device includes a plurality of power-receiving coils, a plurality of rectifier elements, and a convergent output smoothing capacitor. The plurality of power-receiving coils are positioned in place relative to the housing in such a manner that the plurality of power-receiving coils each include first conductor portions extending along a side surface of the housing. The plurality of rectifier elements are connected respectively to the plurality of power-receiving coils. The convergent output smoothing capacitor stores electric energy output from the plurality of rectifier elements.

39. 发明申请

US20210152021A1 IN-VIVO IMPLANTABLE MEDICAL DEVICE 有权
公开(公告)号：US20210152021A1
公开(公告)日：2021-05-20
申请号：US17162610
申请日：2021-01-29
申请人： Murata Manufacturing Co., Ltd.
发明人： Norikazu SAKAMOTO , Tatsuya HOSOTANI , Kiyokazu YAMADA
IPC分类号： H02J50/12 , H02J7/02 , H02J50/80 , H01F38/14 , H01F27/28 , H02J50/00 , A61B5/00
摘要： An in-vivo implantable medical device includes a housing, an electronic circuit component, a power reception coil, and a magnetic material. The housing is formed of a biocompatible material and forms an internal space. The electronic circuit component is disposed in the internal space. The power reception coil is disposed in the internal space, interacts with an external electromagnetic field to form an electromagnetic resonance field to receive power. At least part of a region of the housing in which the electromagnetic resonance field is formed is formed of a biocompatible nonmetal material.

40. 发明申请

US20210145362A1 IN-VIVO IMPLANTABLE ELECTRONIC DEVICE 有权
公开(公告)号：US20210145362A1
公开(公告)日：2021-05-20
申请号：US17160064
申请日：2021-01-27
申请人： Murata Manufacturing Co., Ltd.
发明人： Tatsuya HOSOTANI , Kiyokazu YAMADA
IPC分类号： A61B5/00 , A61L31/02 , A61L31/08
摘要： An in-vivo implantable electronic device includes a housing, a power reception coil, and an electronic circuit. The housing is formed of a biocompatible material and forms an internal space sealed. The power reception coil is disposed in the internal space of the housing and receives power by interacting with an electromagnetic field formed by an external electric field or magnetic field, or transmits an electromagnetic wave to the outside. The electronic circuit is disposed in the internal space, is connected to the power reception coil, and performs at least processing of an electric signal. The housing includes a first member in a box shape formed of a biocompatible metal material and having an opening, a second member formed of a biocompatible nonmetal material and having a shape that closes the opening, a packing in an annular shape disposed between the first member and the second member.

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