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1.发明公开公开(公告)号：US20240340463A1
公开(公告)日：2024-10-10
申请号：US18748915
申请日：2024-06-20
Inventor： Virginie DRUGEON , Takahiro Nishi , Tadamasa Toma
IPC: H04N19/70 , H02M1/00 , H02M1/084 , H02M1/14 , H04N7/01 , H04N19/85 , H04N19/98 , H04N21/2343 , H04N21/236 , H04N21/434 , H04N21/4402 , H05B45/37 , H05B47/10 , H05B47/11 , H05B47/19
CPC classification number: H04N19/70 , H02M1/084 , H02M1/14 , H04N7/0117 , H04N19/85 , H04N19/98 , H04N21/2343 , H04N21/236 , H04N21/23614 , H04N21/4345 , H04N21/4402 , H05B45/37 , H05B47/10 , H05B47/11 , H05B47/19 , H02M1/0009
Abstract: A data generation method is for generating video data that covers a second luminance dynamic range wider than a first luminance dynamic range and has reproduction compatibility with a first device that does not support reproduction of video having the second luminance dynamic range and supports reproduction of video having the first luminance dynamic range, and includes: generating a video signal to be included in the video data using a second OETF; storing, into VUI in the video data, first transfer function information for identifying a first OETF to be referred to by the first device when the first device decodes the video data; and storing, into SEI in the video data, second transfer function information for identifying a second OETF to be referred to by a second device supporting reproduction of video having the second luminance dynamic range when the second device decodes the video data.
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公开(公告)号：US20240072631A1
公开(公告)日：2024-02-29
申请号：US18259634
申请日：2021-03-19
Applicant: Mitsubishi Electric Corporation
Inventor： Kazuhiro YAMADA , Satoru ICHIKI , Masaki MURAMATSU
CPC classification number: H02M1/0025 , H02M1/0006 , H02M3/1584 , H02M1/084
Abstract: A direct-current power supply includes: a plurality of semiconductor devices each of which is a multiphase converter incorporating a plurality of semiconductor switching elements and a drive circuit to drive the plurality of semiconductor switching elements; a plurality of first parasitic inductances, each of which connects a reference potential terminal of the drive circuit and output N terminals of the semiconductor switching elements, in the plurality of semiconductor devices; a smoothing capacitor; and an inverter.
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公开(公告)号：US11884171B2
公开(公告)日：2024-01-30
申请号：US17532525
申请日：2021-11-22
Applicant: HYUNDAI MOBIS Co., Ltd.
Inventor： Ji Hoon Park , Deok Kwan Choi , Won Gon Kim , Kang Min Kim , Min Heo , Tae Ho Bang , Du Ho Kim , Hyun Woo Shim , Soo Min Jeon , A Ra Lee
CPC classification number: B60L53/20 , B60L58/20 , H02M1/084 , H02M1/14 , H02M3/33569 , B60L2210/10
Abstract: A low-voltage DC-DC converter (LDC) includes: an N-phase power circuit configured by connection of N DC-DC converters in parallel between a high-voltage (HV) battery and a low-voltage (LV) battery; and one output capacitor commonly connected to an output of each phase DC-DC converter. Each phase of the N-phase power circuit is controlled in an interleaving manner which delays a phase by 360°/N. Here, each N-phase power circuit is controlled by switching at a frequency of [(a frequency at which the parasitic resistance (equivalent series resistance (ESR)) of the output capacitor is minimized)/N]. The parasitic resistance of the output capacitor of the LDC can be minimized. Accordingly, a lifespan of a battery can be improved and efficiency of the DC-DC converter can be increased through the reduction of the equivalent series resistance (ESR) of the output capacitor.
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公开(公告)号：US20230291317A1
公开(公告)日：2023-09-14
申请号：US17689560
申请日：2022-03-08
Applicant: MINMAX TECHNOLOGY CO., LTD.
Inventor： CHENG-CHOU WU , CHUN-TSE CHEN
CPC classification number: H02M3/33553 , H02M1/084
Abstract: A multi-mode hybrid control DC-DC converting circuit has a switching power converter and a microcontroller. The switching power converter has a transformer and a switching switch. The switching switch is connected to a primary-side winding of the transformer in series. The microcontroller is connected to the switching power converter and a control terminal of the switching switch. The microcontroller sets multiple thresholds according to an input voltage of the switching power converter, and determines whether a feedback voltage of the switching power converter is higher or lower than each one of the thresholds to perform a variable-frequency mode, a constant-frequency mode, or a pulse-skipping mode. The microcontroller outputs a driving signal to the switching switch and correspondingly adjusts a frequency of the driving signal according to the variable-frequency mode, the constant-frequency mode, or the pulse-skipping mode which is performed.
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公开(公告)号：US20230283197A1
公开(公告)日：2023-09-07
申请号：US18005701
申请日：2020-07-17
Applicant: SIEMENS AKTIENGESELLSCHAFT
Inventor： Ilhom Gafur , Dominik Schuster
CPC classification number: H02M7/4835 , H02M1/084
Abstract: A method for controlling a modular multilevel power converter which has at least one phase module branch with a series circuit of modules. Each of the modules has an energy storage device and a power semiconductor circuit with electronic switching elements. A duty cycle of the phase module branch is ascertained, wherein the duty cycle describes the ratio between the voltage which is being output by the phase module branch and the voltage which can be maximally output by the phase module branch. The maximum value of the duty cycle during a preselected time period is ascertained, and the maximum value of the duty cycle is controlled to a target value for the maximum value of the duty cycle by a controller.
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Patent Agency Ranking
公开(公告)号：US20230268831A1
公开(公告)日：2023-08-24
申请号：US18107585
申请日：2023-02-09
Inventor： Shuai Zhang , Wang Zhang
CPC classification number: H02M3/156 , H02M1/0095 , H02M1/084 , H02M1/0025
Abstract: A control circuit of a three-level DC-DC converter, can include where: the three-level DC-DC converter includes first, second, third, and fourth power switches coupled in series between an input voltage and a reference ground, and a flying capacitor coupled between a common node of the first and second power switches and a common node of the third and fourth power switches; and the control circuit is configured to adjust a phase difference between driving signals of the first and second power switches, and duty ratios of the first and second power switches, according to an error between a voltage across the flying capacitor and a predetermined value, such that the voltage across the flying capacitor is stabilized at the predetermined value.
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7.发明申请公开(公告)号：US20190261486A1
公开(公告)日：2019-08-22
申请号：US16401746
申请日：2019-05-02
Inventor： Virginie Drugeon , Takahiro Nishi , Tadamasa Toma
IPC: H05B37/02 , H05B33/08 , H04N21/236 , H02M1/14 , H02M1/084 , H04N19/70 , H04N21/4402 , H04N7/01 , H04N21/2343 , H04N19/98 , H04N19/85 , H04N21/434
CPC classification number: H05B37/0209 , H02M1/084 , H02M1/14 , H02M2001/0009 , H04N7/0117 , H04N19/70 , H04N19/85 , H04N19/98 , H04N21/2343 , H04N21/236 , H04N21/23614 , H04N21/4345 , H04N21/4402 , H05B33/0815
Abstract: A data generation method is for generating video data that covers a second luminance dynamic range wider than a first luminance dynamic range and has reproduction compatibility with a first device that does not support reproduction of video having the second luminance dynamic range and supports reproduction of video having the first luminance dynamic range, and includes: generating a video signal to be included in the video data using a second OETF; storing, into VUI in the video data, first transfer function information for identifying a first OETF to be referred to by the first device when the first device decodes the video data; and storing, into SEI in the video data, second transfer function information for identifying a second OETF to be referred to by a second device supporting reproduction of video having the second luminance dynamic range when the second device decodes the video data.
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8.发明申请公开(公告)号：US20180352632A1
公开(公告)日：2018-12-06
申请号：US16103411
申请日：2018-08-14
Inventor： Virginie DRUGEON , Takahiro NISHI , Tadamasa TOMA
CPC classification number: H05B37/0209 , H02M1/084 , H02M1/14 , H02M2001/0009 , H04N7/0117 , H04N19/70 , H04N19/85 , H04N19/98 , H04N21/2343 , H04N21/236 , H04N21/23614 , H04N21/4345 , H04N21/4402 , H05B33/0815
Abstract: A data generation method is for generating video data that covers a second luminance dynamic range wider than a first luminance dynamic range and has reproduction compatibility with a first device that does not support reproduction of video having the second luminance dynamic range and supports reproduction of video having the first luminance dynamic range, and includes: generating a video signal to be included in the video data using a second OETF; storing, into VUI in the video data, first transfer function information for identifying a first OETF to be referred to by the first device when the first device decodes the video data; and storing, into SEI in the video data, second transfer function information for identifying a second OETF to be referred to by a second device supporting reproduction of video having the second luminance dynamic range when the second device decodes the video data.
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公开(公告)号：US20180342973A1
公开(公告)日：2018-11-29
申请号：US15602858
申请日：2017-05-23
Applicant: REGAL BELOIT AMERICA, INC.
Inventor： Ming Li , Roger Carlos Becerra
CPC classification number: H02P27/06 , H02K5/225 , H02K11/33 , H02K11/40 , H02K15/00 , H02M1/084 , H02M5/458
Abstract: A ground assembly includes a first layer, a second layer, and a bypass capacitor. The first layer includes a power ground, a communication ground spaced from the power ground, a conductive path defining a parasitic inductance and electrically coupled between the power ground and the communication ground, and an electrically insulating layer. At least a portion of the insulating layer is positioned between the power and communication grounds. The second layer includes a first substrate that is spaced from the power ground to define a first parasitic capacitance therebetween and is spaced from the communication ground to define a second parasitic capacitance therebetween. The bypass capacitor is electrically coupled between the power ground and the first substrate.
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公开(公告)号：US10079555B2
公开(公告)日：2018-09-18
申请号：US15447781
申请日：2017-03-02
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yoshinobu Hasuka , Kazuo Kajihata
CPC classification number: H02M7/44 , H02M1/084 , H02M1/15 , H02M2003/1586 , H02P27/06
Abstract: A control method for a polyphase step-up converter that drives step-up circuits, the step-up circuits being connected in parallel between an input terminal and an output terminal from which an output voltage supplied to a load circuit is output. The control method includes, in changing the frequency of each of driving signals from a first frequency to a second frequency while N circuits are being driven, determining whether the second frequency is M times as high as a resonance frequency of a resonance circuit provided between the polyphase step-up converter and the load circuit; and when the second frequency is M times as high as the resonance frequency, setting a phase difference between driving signals to a phase difference determined in accordance with a value of M.
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