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公开(公告)号：US11601162B2
公开(公告)日：2023-03-07
申请号：US17439754
申请日：2020-02-05
Inventor： Taiki Nishimoto
Abstract: A capacitive coupling circuit device is provided with a capacitive coupling circuit and a ground-side feedback circuit. The capacitive coupling circuit demodulates a modulated signal, which is obtained by modulating an input signal and transmitting a modulated input signal through a coupling capacitor. The ground-side feedback circuit is inserted between a first ground terminal on a signal input side of the capacitive coupling circuit and a second ground terminal on a signal output side of the capacitive coupling circuit. The ground-side feedback circuit is configured by connecting a second capacitor in series to a parallel circuit of a first capacitor and a first resistor. Alternatively, the ground-side feedback circuit may be configured by connecting the second capacitor and a third capacitor in series to both ends of the parallel circuit of the first capacitor and the first resistor, respectively.
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公开(公告)号：US10903737B2
公开(公告)日：2021-01-26
申请号：US16608695
申请日：2018-04-26
Inventor： Noriaki Takeda , Taiki Nishimoto
Abstract: Provided is a power circuit in which a first input terminal is connected to a first end of a second inductor, a second end of the second inductor is connected to a first end of a first reactor, the second end of the second inductor is connected to a first end of a second reactor, the first input terminal is connected to a first end of a first inductor, a second end of the first inductor is connected to a first end of a bypass capacitor, a second end of the bypass capacitor is connected to a second output terminal, the first inductor and the second inductor are magnetically coupled to each other, and a control circuit performs switching control over first and second switching elements, using an interleaving method.
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公开(公告)号：US10027248B2
公开(公告)日：2018-07-17
申请号：US15597177
申请日：2017-05-17
Inventor： Shoichi Hara , Atsushi Yamamoto , Taiki Nishimoto
IPC: H02M7/5387 , H02M7/48 , H02M7/12 , H02M3/158
Abstract: An electric power conversion circuit includes: a first leg including first and third switches; a second leg including second and fourth switches; a third leg including fifth and seventh switches; a fourth leg including sixth and eighth switches; a first reactor connected between a first node, in which the first and second legs are connected to each other, and a fifth node, in which the third and fourth legs are connected to each other; a second reactor connected between a second node to which the first and second legs are connected and a sixth node to which the third and fourth legs are connected; a first port terminal connected to the first node; a second port terminal connected to the sixth node; a third port terminal connected to a midpoint of each of the first and third legs; and a fourth port terminal connected to a midpoint of each of the second and fourth legs.
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公开(公告)号：US09923486B2
公开(公告)日：2018-03-20
申请号：US15590090
申请日：2017-05-09
Inventor： Taiki Nishimoto , Atsushi Yamamoto , Shoichi Hara
IPC: H02M7/538 , H02M7/53862 , H02M7/5387 , H02M7/5395
CPC classification number: H02M7/53862 , H02M1/08 , H02M7/5387 , H02M7/5395 , H02M2001/0006
Abstract: An electric power conversion circuit includes: first through fourth port terminals; first through fourth switches that are connected with each other in a bridge configuration; fifth through eighth switches that are respectively connected in parallel with the first through fourth switches; first through eighth diodes that are respectively connected in series with the first through eighth switches; a first bootstrap circuit that is connected to control terminals of the first, second, fourth, and sixth switches; and a second bootstrap circuit that is connected to control terminals of the third, fifth, seventh, and eighth switches.
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5.发明授权公开(公告)号：US11777412B2
公开(公告)日：2023-10-03
申请号：US17441450
申请日：2020-02-12
Inventor： Noriaki Takeda , Taiki Nishimoto , Naoki Sawada
CPC classification number: H02M3/33573 , H02M1/44 , H02M3/003
Abstract: A switching power supply apparatus is provided with a switching circuit and an even number of transformers. The transformer are provided with: cores each having an identical shape; primary windings each having an identical arrangement around the cores, and each having first and second terminals; and secondary windings each having an identical arrangement around the cores, and each having third and fourth terminals. The primary windings of the transformers are connected so that when a current flows from the first terminal to the second terminal of a first transformer, a current flows from the second terminal to the first terminal of a second transformer. The secondary windings of the transformers are connected so that when a current flows from the third terminal to the fourth terminal of the first transformer, a current flows from the fourth terminal to the third terminal of the second transformer.
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Patent Agency Ranking
6.发明授权公开(公告)号：US10326470B2
公开(公告)日：2019-06-18
申请号：US15347062
申请日：2016-11-09
Inventor： Shoichi Hara , Atsushi Yamamoto , Taiki Nishimoto , Kohei Masuda
Abstract: A converter includes: a terminal that receives code-modulated power that has been generated with a modulation code; and a circuit that intermittently converts the code-modulated power with a conversion code based on the modulation code. The code-modulated power is alternating-current power.
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公开(公告)号：US10014855B2
公开(公告)日：2018-07-03
申请号：US15590826
申请日：2017-05-09
Inventor： Taiki Nishimoto , Atsushi Yamamoto , Shoichi Hara
IPC: H02M7/00 , H02M7/02 , H03K17/567 , H02M3/158 , H03K17/0412 , H02M3/335 , H02M1/00
CPC classification number: H03K17/567 , H02M1/08 , H02M3/1584 , H02M3/33584 , H02M7/5387 , H02M2001/0003 , H02M2001/0045 , H03K17/0412 , H03K17/063 , H03K2217/0009 , H03K2217/0045
Abstract: An electric power conversion circuit includes: first through fourth port terminals; a first diode having an anode connected to the first port terminal; a second diode having a cathode connected to the second port terminal; a third diode having a cathode connected to the first port terminal; a fourth diode having an anode connected to the second port terminal; first through fourth switches that are bridge-connected between a cathode of the first diode and an anode of the second diode; fifth through eighth switches that are bridge-connected between an anode of the third diode and a cathode of the fourth diode; a first bootstrap circuit that is connected to control terminals of the first through fourth switches; and a second bootstrap circuit that is connected to control terminals of the fifth through eighth switches.
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公开(公告)号：US09899911B2
公开(公告)日：2018-02-20
申请号：US15018719
申请日：2016-02-08
Inventor： Taiki Nishimoto , Akira Minegishi
CPC classification number: H02M1/4225 , H02M1/126 , Y02B70/126 , Y02P80/112
Abstract: A power source circuit includes first and second input terminals; first, second, and third inductors; first and second switching devices; first and second capacitors; and first and second output terminals. A first end of the second inductor is connected to a path that connects the first input terminal and the first node, a second end of the second capacitor is connected to a path that connects the second input terminal and the second node, and the first inductor and the second inductor are magnetically coupled with each other. A first end of the third inductor and a second end of the second inductor are connected to each other. A second end of the third inductor and a first end of the second capacitor are connected to each other.
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公开(公告)号：US12101034B2
公开(公告)日：2024-09-24
申请号：US17441184
申请日：2020-02-14
Inventor： Akira Kato , Motohiko Fujimura , Kazuyuki Sakiyama , Takehiko Yamakawa , Taiki Nishimoto
CPC classification number: H02M3/33573 , H02M1/0064 , H02M3/003 , H02M3/015
Abstract: A power conversion device is equipped with at least one leg circuit containing two switching elements connected in series, respectively, a transformer having a primary winding and a secondary winding, a capacitor connected between the leg circuit and one end of the primary winding, a switch circuit, and a rectifier circuit. The switch circuit selectively connects one of a plurality of winding sections of the secondary winding that are different from each other to the rectifier circuit.
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10.发明授权公开(公告)号：US11923760B2
公开(公告)日：2024-03-05
申请号：US17442903
申请日：2020-02-12
Inventor： Naoki Sawada , Taiki Nishimoto , Noriaki Takeda
CPC classification number: H02M1/123 , H02M1/44 , H02M3/01 , H02M3/33573
Abstract: A switching power supply apparatus has a line-to-ground capacitance C31 between a first winding terminal of a transformer and a conductor portion, and a line-to-ground capacitance C32 between a second winding terminal of the transformer and the conductor portion. The switching power supply apparatus is provided with a capacitor being connected between a first output terminal of a switching circuit and the first winding terminal of the transformer, and a capacitor being connected between a second output terminal of the switching circuit and the second winding terminal of the transformer. Capacitances of the capacitors C21, C22 are set to satisfy: C21>C22, for C31>C32; C21=C22, for C31=C32; and C21
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