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公开(公告)号：US20240405678A1
公开(公告)日：2024-12-05
申请号：US18697682
申请日：2022-08-31
Inventor： Taiki NISHIMOTO , Masahiro YAMAOKA , Noriaki TAKEDA
Abstract: A voltage regulator includes chopper circuits connected in parallel, and a second series circuit. Each of the chopper circuits switches an input voltage and outputs the input voltage via a first inductor of a primary winding of a transformer, which includes the primary and secondary windings magnetically coupled with each other. The second series circuit includes a first series circuit and a third inductor connected in series, the first series circuit is configured by connecting second inductors of the secondary windings of the respective transformers of the chopper circuits in series, and both ends of the second series circuit are connected to first and second connection points connected to each other. The voltage regulator includes a first capacitor inserted between the first connection point and the output terminal, and a fourth inductor inserted between the first connection point and one end of one of the second inductors connected closest thereto.
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公开(公告)号：US20240030804A1
公开(公告)日：2024-01-25
申请号：US18255304
申请日：2021-12-10
Inventor： Taiki NISHIMOTO
CPC classification number: H02M1/15 , H02M3/1557
Abstract: A power converter apparatus includes: a pair of input terminals and a pair of output terminals; a first series circuit including a first inductor and a first switch element and being connected in parallel to the pair of input terminals; a switching circuit that switches, by using a second switch element, a voltage between both ends of the first switch element; a power converter circuit that converts an input voltage inputted to the pair of input terminals to a predetermined output voltage and then outputs the output voltage to the pair of output terminals; and a ripple cancellation current generator circuit that, in case of the first switch element being turned on and off, generates a ripple cancellation current for cancelling a ripple current generated by accumulation and discharge of current energy to and from the first inductor.
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Patent Agency Ranking
13.发明申请公开(公告)号：US20220200463A1
公开(公告)日：2022-06-23
申请号：US17442903
申请日：2020-02-12
Inventor： Naoki SAWADA , Taiki NISHIMOTO , Noriaki TAKEDA
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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14.发明申请公开(公告)号：US20220166330A1
公开(公告)日：2022-05-26
申请号：US17441450
申请日：2020-02-12
Inventor： Noriaki TAKEDA , Taiki NISHIMOTO , Naoki SAWADA
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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公开(公告)号：US20210006152A1
公开(公告)日：2021-01-07
申请号：US16608717
申请日：2018-04-26
Inventor： Taiki NISHIMOTO , Noriaki TAKEDA
IPC: H02M1/42
Abstract: Provided is a power supply circuit in which a first end of a first inductor is connected to a path linking a first input terminal to a first connection point, a second end of the first inductor is connected to a first end of a bypass capacitor, a first end of a second inductor is connected to a path linking the first input terminal to a second connection point, a second end of the second inductor is connected to a first end of the bypass capacitor, a second end of the bypass capacitor is connected to a second output terminal, a first reactor and the first inductor are magnetically coupled to each other, a second reactor and the second inductor are magnetically coupled to each other, and a control circuit performs switching control over a first switching element and a second switching element, using an interleaving method.
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16.发明申请公开(公告)号：US20200006981A1
公开(公告)日：2020-01-02
申请号：US16490500
申请日：2018-02-26
Inventor： Atsushi YAMAMOTO , Masahiro YAMAOKA , Taiki NISHIMOTO , Motohiko FUJIMURA
Abstract: A control circuit of a code modulator sets first to third states to a code modulation circuit. In first state, first and fourth switch circuits are on, and second and third switch circuits are off. In second state, first and fourth switch circuits are off, and second and third switch circuits are on. In third state, all first to fourth switch circuits are on during transition from the first to second state, and vice versa. A control circuit of a code demodulator sets fourth to sixth states to a code demodulation circuit. In fourth state, fifth and eighth switch circuits are off, and sixth and seventh switch circuits are on. In fifth state, fifth and eighth switch circuits are on, and sixth and seventh switch circuits are off. In sixth state, all fifth to eighth switch circuits are on during transition from fourth to fifth state, and vice versa.
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17.发明申请公开(公告)号：US20170163281A1
公开(公告)日：2017-06-08
申请号：US15347062
申请日：2016-11-09
Inventor： Shoichi HARA , Atsushi YAMAMOTO , Taiki NISHIMOTO , Kohei MASUDA
IPC: H03M5/14 , H03K17/687 , H02J13/00
CPC classification number: H03M5/145 , G05B19/042 , G05B2219/25177 , H02J13/00 , H02J13/0027 , H03K17/6871 , H03M5/04
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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