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公开(公告)号：US20230318482A1
公开(公告)日：2023-10-05
申请号：US18160095
申请日：2023-01-26
发明人： Ilan Yoscovich , Tzachi Glovinsky , Guy Sella , Yoav Galin
CPC分类号： H02M7/483 , H02M7/537 , H02M1/126 , H02M7/4837 , H02M1/0095 , H02M7/4833 , H02M1/08 , H02M1/143 , H02M1/0054 , H02M7/4835
摘要： A multi-level inverter having one or more banks, each bank containing a plurality of low voltage MOSFET transistors. A processor configured to switch the plurality of low voltage MOSFET transistors in each bank to switch at multiple times during each cycle.
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公开(公告)号：US20230300524A1
公开(公告)日：2023-09-21
申请号：US17699902
申请日：2022-03-21
摘要： Apparatus and techniques for adaptively adjusting an input current limit for a boost converter supplying power to a load, such as an amplifier. An example circuit for supplying power generally includes a boost converter having an output coupled to a load, and logic configured to adaptively adjust an input current limit for the boost converter based on an estimated output power for the boost converter and to apply the input current limit to the boost converter. One example method for supplying power generally includes converting an input voltage to an output voltage with a boost converter, to power a load for the boost converter, adaptively adjusting an input current limit for the boost converter based on an estimated output power for the boost converter, and applying the input current limit to the boost converter during the converting.
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公开(公告)号：US11757361B2
公开(公告)日：2023-09-12
申请号：US16934839
申请日：2020-07-21
发明人： Apurva Somani , Xiaorong Xia , Anup Thapa , Gysler Castelino
CPC分类号： H02M3/1582 , G05B19/05 , H02J7/0071 , H02J7/35 , H02M1/08 , H02M1/14 , H02M3/33584 , G05B2219/13095 , H02J7/0068 , H02M1/0009 , H02M1/0054
摘要： A DC/DC converter system includes a bidirectional DC/DC converter converting between voltage levels at first and second ports and a control system for controlling the DC/DC converter. The bidirectional DC/DC converter includes a first conversion stage connected to the first port and a second conversion stage interfaced with the first conversion stage and connected to the second port. The control system includes outer and inner control loops. The outer control loop compares a command for one of a voltage level, a current level or power at one of the first and second ports to an actual value of voltage level, current level or power level and outputs an interface current command based on the comparison. The inner control loop compares the interface current command to an actual interface current at an interface of the first and second conversion stages, and controls a switching signal duty value based on the comparison.
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公开(公告)号：US20230275453A1
公开(公告)日：2023-08-31
申请号：US17768754
申请日：2020-09-17
申请人： Masamichi KANO , Hidenobu TAJIMA , Yousuke HAYASHI
发明人： Masamichi KANO , Hidenobu TAJIMA , Yousuke HAYASHI
CPC分类号： H02J9/062 , H02M1/14 , H02M1/32 , H02M5/4585 , H02J3/0073
摘要： In an uninterruptible power supply apparatus, AC current, which includes a feedback component having a value corresponding to deviation between terminal-to-terminal voltage of a capacitor and reference voltage, and a feed forward component obtained by multiplying load current by a gain, is passed into a converter such that the terminal-to-terminal voltage of the capacitor becomes the reference voltage. The gain is set to a first gain in an iverter power feed mode and a bypass power feed mode, and the gain is set to a second gain smaller than the first gain in a switching period of switching between the inverter power feed mode and the bypass power feed mode, to prevent the terminal-to-terminal voltage of the capacitor from exceeding an upper limit voltage in a lap power feed mode.
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公开(公告)号：US20230261578A1
公开(公告)日：2023-08-17
申请号：US18128512
申请日：2023-03-30
申请人： FLOSFIA INC.
CPC分类号： H02M3/1582 , H02M1/143
摘要： Provided is a power conversion circuit and a control system in which radiated noise of the entire circuit is reduced. A power conversion circuit including at least: a switching element (e.g. a MOSFET, etc.) and a diode (e.g. a commutating diode, etc.): wherein the power conversion circuit is a single-switch power conversion; and the diode is a gallium oxide-based Schottky barrier diode.
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公开(公告)号：US11728749B2
公开(公告)日：2023-08-15
申请号：US17728926
申请日：2022-04-25
发明人： Yutan Zhang , Bo Liu , Desheng Li , Junyi Zheng , Yuming Zhang
CPC分类号： H02M7/797 , H02M1/14 , H02M7/219 , H02M3/33573 , H02M3/33584
摘要： The disclosure provides a single-stage isolated bidirectional converter and a control method thereof. The converter includes: a first full-bridge circuit unit, a half-bridge circuit unit, a second full-bridge circuit unit, a phase-shift inductor unit, a transformer and a filter capacitor. The transformer includes a first winding and a second winding, and the first winding is provided with a center tap. The center tap is connected to the first port, two ends thereof are connected to the midpoints of the two bridge arms of the first full-bridge circuit unit through the phase-shift inductor unit, and two ends of the second winding are connected to the midpoints of the two bridge arms of the second full-bridge circuit unit. Two ends of the first full-bridge circuit unit are connected to two ends of the half-bridge circuit unit; two ends of the half-bridge circuit unit are connected to two ends of the filter capacitor.
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47.发明公开公开(公告)号：US20230223857A1
公开(公告)日：2023-07-13
申请号：US18009404
申请日：2021-05-25
申请人： Robert Bosch GmbH
发明人： Christian Winter , Jan Riedel
CPC分类号： H02M3/33573 , H02M3/33584 , H02M1/14
摘要： The present invention relates to the control of a dual active bridge converter. In particular, it is provided that a control variable for the dual active bridge converter is superimposed with an additional ripple component and to control the dual active bridge converter with a combination of the control variable and the additional ripple component.
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公开(公告)号：US11695322B2
公开(公告)日：2023-07-04
申请号：US17454146
申请日：2021-11-09
发明人： Yonggao Zhang , Yue Fan , Peng Liu , Weidong Fu , Siyuan Ze , Chengkai Chai
IPC分类号： H02M7/537 , H02M7/5387 , H02M1/14 , H02M7/53
CPC分类号： H02M1/14 , H02M7/537 , H02M7/53 , H02M7/5387
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.
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公开(公告)号：US20230198417A1
公开(公告)日：2023-06-22
申请号：US18169948
申请日：2023-02-16
CPC分类号： H02M3/33571 , H02M1/096 , H02M1/325 , H02M1/143
摘要： A power converter apparatus employs an energy recovery auxiliary circuit to suppress overvoltage oscillations and achieve high efficiency in a resonant LLC power converter system having high power density. The power converter apparatus includes an inverter configured to receive a DC input power and produce an AC voltage, a resonant tank including a resonant inductor and a resonant capacitor coupled between the AC voltage and a primary winding of a transformer, a rectifier configured to produce a DC output power coupled to a secondary winding of the transformer. The power converter suppresses overvoltage oscillations on rectifier switches by employing an energy recovery auxiliary circuit to transfer, during a transition period, current from the secondary side to a clamping capacitor conductively coupled to the primary side of the converter. The energy is then recovered during a subsequent power transfer cycle, thereby improving overall efficiency of the power converter.
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公开(公告)号：US20230188044A1
公开(公告)日：2023-06-15
申请号：US18061591
申请日：2022-12-05
CPC分类号： H02M3/1586 , H02M1/14
摘要： A system for generating a plurality of switch control signals of a multiphase power converter may include a plurality of inputs, each input of the plurality of inputs configured to receive a respective control signal for controlling a respective phase of the multiphase power converter, and a plurality of control paths comprising a control path for each respective control signal, each control path configured to, for its respective control signal, control a switching period of the respective control signal for such control path based on a measure of alignment among the respective control signal for such control path and the other respective control signals of the other control paths.
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