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31. 发明申请

US20220200480A1 POWER CONVERSION SYSTEM, METHOD FOR CONTROLLING THE POWER CONVERSION SYSTEM, AND PROGRAM 有权
公开(公告)号：US20220200480A1
公开(公告)日：2022-06-23
申请号：US17440598
申请日：2020-03-05
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： Takaaki NORISADA , Fumito KUSAMA
IPC分类号： H02M7/48 , H02M1/14 , H02M1/00
摘要： A power conversion system according to the present disclosure includes a first circuit, a second circuit, and a third circuit. The first circuit has a first external terminal thereof electrically connected to either an AC power supply or an AC load. In the power conversion system, a first internal terminal, a second internal terminal, and a third internal terminal are electrically connected to the same connection unit. The second circuit controls a current or power being input to, or output from, the second circuit itself such that the current or the power is synchronized with power ripples caused by the AC power supply or the AC load. Either the AC power supply or the AC load is electrically connected to the first circuit.

32. 发明授权

US11367607B2 Mass spectrometer 有权
公开(公告)号：US11367607B2
公开(公告)日：2022-06-21
申请号：US17056990
申请日：2019-05-31
申请人： Micromass UK Limited
发明人： Frank Buckley , Roger Smith
IPC分类号： H01J49/40 , H01J49/02 , H01J49/10 , H02M1/14 , H01J49/00 , H02M1/00
摘要： A drive unit for driving an acceleration electrode of a mass spectrometer is disclosed. The drive unit includes a power converter comprising a switching element and pulsing circuitry that can form output pulses suitable for driving an acceleration electrode of a mass spectrometer. The drive unit also includes a controller that is configured to synchronise operation of the switching element with the pulsing circuitry.

33. 发明授权

US11362587B2 Hysteretic pulse modulation for charge balance of multi-level power converters 有权
公开(公告)号：US11362587B2
公开(公告)日：2022-06-14
申请号：US15858640
申请日：2017-12-29
申请人： Texas Instruments Incorporated
发明人： Orlando Lazaro , Kevin Scoones , Alvaro Aguilar , Jeffrey Anthony Morroni , Sombuddha Chakraborty
IPC分类号： H02M3/158 , H02M1/14 , H02M3/07 , H03K7/08
摘要： In described examples of methods and control circuitry to control a multi-level power conversion system, the control circuitry generates PWM signals having a duty cycle to control an output signal. The duty cycle is adjustable in different switching cycles. States of the system's switches are adjustable in one or more intervals within the switching cycles. In response to a voltage across a capacitor of the system being outside a non-zero voltage range, the control circuitry adjusts states of the switches in two intervals to discharge or charge the capacitor in a given switching cycle.

34. 发明授权

US11349411B2 Method for controlling a pulse-width-modulated power converter, control device for a pulse-width-modulated power converter, power converter assembly, and electrical drive system 有权
公开(公告)号：US11349411B2
公开(公告)日：2022-05-31
申请号：US16639728
申请日：2018-08-09
申请人： Robert Bosch GmbH
发明人： Florian Einsele , Helge Sprenger
IPC分类号： H02P27/08 , H02M7/5387 , H02M1/14 , H02M1/32
摘要： The invention relates to an adjustment of a PWM frequency in a power converter in accordance with the input voltage of the power converter. By means of the adjustment of the PWM frequency in the power converter in accordance with the input voltage, a ripple on the input side of the power converter can be varied. In particular, it is possible, in the case of high input voltages, to minimize the ripple by adjusting the PWM frequency and thus to reduce the sum of the input voltage and the ripple.

35. 发明授权

US11348735B2 High voltage filter and power conversion device 有权
公开(公告)号：US11348735B2
公开(公告)日：2022-05-31
申请号：US17267585
申请日：2019-07-10
申请人： Hitachi Automotive Systems, Ltd.
发明人： Isao Houda , Aya Ohmae , Hiroki Funato , Yusaku Katsube , Ayumu Hatanaka
IPC分类号： H01G4/38 , H01G4/228 , H02M1/14 , H02M1/44 , H02M7/00 , H02M7/48
摘要： A high voltage filter includes an anode bus bar, a cathode bus bar, a first capacitive element connected between the anode bus bar and a ground connector connected to a ground, a second capacitive element connected between the cathode bus bar and the ground connector, and a third capacitive element connected between the anode bus bar and the cathode bus bar. An anode terminal of the first capacitive element and a cathode terminal of the third capacitive element are arranged adjacent to each other, and a cathode terminal of the second capacitive element and an anode terminal of the third capacitive element are arranged adjacent to each other.

36. 发明授权

US11340310B2 Voltage imbalance assessment method and power conversion device 有权
公开(公告)号：US11340310B2
公开(公告)日：2022-05-24
申请号：US16956830
申请日：2018-01-12
申请人： Hitachi Industrial Equipment Systems Co., Ltd.
发明人： Kazushige Hotta , Keisuke Tanabe , Yusuke Arao
IPC分类号： H02M1/14 , G01R31/42 , H02M1/088 , H02M5/458
摘要： This voltage imbalance assessment method is for a power conversion device comprising a forward converter for rectifying the voltage of a three-phase AC power supply, a smoothing capacitor for smoothing the rectified voltage, a detection unit for detecting the smoothed voltage, and a control unit. The control unit: uses the detected voltage to generate data indicating frequency components; compares, in the data indicating frequency components, the magnitude of the component that is four times the power supply frequency with the magnitude of the component that is six times the power supply frequency; and assesses the voltage imbalance of the three-phase AC power supply on the basis of the comparison.

37. 发明申请

US20220149716A1 AC-SIDE SYMMETRICALLY-SPLIT SINGLE-PHASE INVERTER FOR DECOUPLING 有权
公开(公告)号：US20220149716A1
公开(公告)日：2022-05-12
申请号：US17454146
申请日：2021-11-09
申请人： East China Jiaotong University
发明人： Yonggao Zhang , Yue Fan , Peng Liu , Weidong Fu , Siyuan Ze , Chengkai Chai
IPC分类号： H02M1/14 , H02M7/537
摘要： An alternating current (AC)-side symmetrically-split single-phase inverter for decoupling, which includes an H-bridge inverter, the H-bridge inverter includes an upper half-bridge structure and a lower half-bridge structure that are symmetrical to each other, the upper half-bridge structure includes an upper half-bridge first unit and an upper half-bridge second unit in parallel, the upper half-bridge first unit includes an insulated-gate bipolar transistor G1, a diode D1, and a capacitor C3 in parallel, the upper half-bridge second unit includes an insulated-gate bipolar transistor G3, a diode D3, and a capacitor C4 in parallel; and the lower half-bridge structure includes a lower half-bridge first unit and a lower half-bridge second unit in parallel, the lower half-bridge first unit includes an insulated-gate bipolar transistor G2, a diode D2, and a capacitor C1 in parallel, the lower half-bridge second unit includes an insulated-gate bipolar transistor G4, a diode D4, and a capacitor C2 in parallel.

38. 发明授权

US11317120B2 Data generation method, data reproduction method, data generation device and data reproduction device 有权
公开(公告)号：US11317120B2
公开(公告)日：2022-04-26
申请号：US17106882
申请日：2020-11-30
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： Virginie Drugeon , Takahiro Nishi , Tadamasa Toma
IPC分类号： H04N19/70 , H04N21/2343 , H04N21/236 , H04N21/4402 , H04N21/434 , H04N19/85 , H04N19/98 , H05B47/11 , H05B47/19 , H05B45/37 , H05B47/10 , H04N7/01 , H02M1/084 , H02M1/14 , H02M1/00
摘要： 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.

39. 发明授权

US11303196B2 Apparatus for conversion between AC power and DC power 有权
公开(公告)号：US11303196B2
公开(公告)日：2022-04-12
申请号：US17212636
申请日：2021-03-25
申请人： ABB Schweiz AG
发明人： Kai Tian , Tinho Li , Kuenfaat Yuen , Mei Liang
IPC分类号： H02M1/14 , H02M5/458
摘要： An objective of the present application is to provide an apparatus for conversion between AC power and DC power. The apparatus includes a first power conversion circuit having a first AC side and a first DC side, at least one second power conversion circuit each having a second AC side and a second DC side; and at least one choke having a first terminal, a second terminal and at least one third terminal, wherein the first terminal is arranged to be electrically coupled to a phase of the AC power, and the second terminal and the at least one third terminal are electrically coupled to respective same phases of the first AC side of the first power conversion circuit and the second AC side of the at least one second power conversion circuit. Moreover, the choke includes a first common-mode choke and a first differential-mode choke, wherein: the first common-mode choke and the first differential-mode choke are electrically coupled in series via a first group of coil ends of the first common-mode choke and a first group of coil ends of the first differential-mode choke, and a second group of coil ends of one of the first common-mode choke and the first differential-mode choke are electrically coupled to the first terminal of the choke, and a second group of coil ends of the other are respectively electrically coupled to the second terminal and the at least one third terminal of the choke. The first common-mode choke can help provide high inductance to the high-frequency components of the common-mode current, which flows from the AC power source, since the impedance of the common-mode choke and the differential-mode choke depends on frequency on the same scale as inductance. The advantages of using the common-mode choke is that it provides twice the inductance of separate inductor design due to the coupling effect. Therefore it filters the common-mode current more effectively or the inductance size can be reduced for a given current ripple requirement.

40. 发明申请

US20220085711A1 SYSTEM AND METHOD FOR POWER SUPPLY RIPPLE COMPENSATION 有权
公开(公告)号：US20220085711A1
公开(公告)日：2022-03-17
申请号：US17413575
申请日：2019-10-03
申请人： ELBIT SYSTEMS LAND AND C4I LTD.
发明人： Neta BEN YISHAY , Avi LAX
IPC分类号： H02M1/14 , H02M1/00 , H02M3/04
摘要： A method for compensating for power supply ripple that is present in a supply voltage that is generated by a switched-mode power supply, the method comprising: calculating an estimated power supply ripple that is expected to be generated by the power supply; generating a digital ripple compensation signal, based on the estimated power supply ripple; combining a digital baseband (BB) signal and the digital ripple compensation signal to generate a digital modified BB signal; converting the digital modified BB signal to an analog radio frequency (RF) signal; and amplifying the analog RF signal, based on the supply voltage, to generate a RF transmission signal.

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