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61.发明公开公开(公告)号：US20240097575A1
公开(公告)日：2024-03-21
申请号：US18118100
申请日：2023-03-06
CPC分类号： H02M3/33592 , H02M1/0064 , H02M1/36
摘要： A rectifier converter of the UPS includes a rectifier discharge reuse module, a first mains switching module, a second mains switching module and a battery switching module. The rectifier discharge reuse module includes a filtering unit and a rectifier discharge unit that are connected to each other; the battery switching module is connected between a battery power supply and the filtering unit, and operates in a case that the battery power supply supplies power to the rectifier converter; and the first mains switching module is connected between a mains power supply and the filtering unit, the second mains switching module is connected between the filtering unit and the rectifier discharge unit, and the first mains switching module and the second mains switching module operate in a case that the mains power supply supplies power to the rectifier converter.
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公开(公告)号：US20240063712A1
公开(公告)日：2024-02-22
申请号：US18450534
申请日：2023-08-16
发明人： Gun YANG , Dehong CHEN , Zhengang SONG , Jianguo BI
CPC分类号： H02M1/44 , H02M1/0064 , H01F3/14 , H02M1/123
摘要： An inverter includes a direct current-alternating current (DC-AC) conversion circuit and a filter circuit, where the filter circuit is connected to an alternating current side of the DC-AC conversion circuit. The filter circuit includes an integrated inductor. The integrated inductor includes a common mode magnetic core, a differential mode magnetic core, and at least two windings. The differential mode magnetic core includes a second magnetic core and a third magnetic core. The common mode magnetic core, the second magnetic core, and the third magnetic core are stacked in sequence. Each winding is located between the third magnetic core and the second magnetic core and is wound on the common mode magnetic core and the second magnetic core. The at least two windings are spaced by the third magnetic core. Set as such, a product volume can be reduced while common mode interference and differential mode interference are suppressed.
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63.发明授权公开(公告)号：US11869695B2
公开(公告)日：2024-01-09
申请号：US17451632
申请日：2021-10-20
发明人： Alexandr Ikriannikov , Di Yao
CPC分类号： H01F17/04 , H01F3/14 , H02M1/0064 , H02M3/1586 , H01F2038/026
摘要： A coupled inductor includes first and second magnetic rails, a plurality of connecting magnetic elements, and a plurality of windings. The first and second magnetic rails are separated from each other in a first direction, and the first magnetic rail has a first cross-sectional area A1 as seen when viewed in the first direction. Each connecting magnetic element is disposed between the first and second magnetic rails in the first direction. The plurality of connecting magnetic elements collectively have a second cross-sectional area A2 as seen when viewed in the first direction, and a ratio of A2/(A1−A2) is at least 1.5. A respective winding is wound at least partially around each connecting magnetic element.
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公开(公告)号：US20230344330A1
公开(公告)日：2023-10-26
申请号：US17913871
申请日：2020-04-20
发明人： Yusuke YAMAKAJI , Ikuro SUGA , Satoru ICHIKI , Koichi ARISAWA , Tatsuya YAMANAKA
IPC分类号： H02M1/00 , H02M7/5387
CPC分类号： H02M1/0064 , H02M7/53871 , H02M1/0012
摘要： A noise propagating to outside of a power conversion device is reduced. A power conversion device includes at least one external electrode, a switching element, a noise filter connected between at least one external electrode and switching element, at least one first wire to connect at least one external electrode and noise filter, a second wire to connect noise filter and switching element, and a magnetic filter attached to second wire. An attenuation characteristic A [dB] and an attenuation characteristic B [dB] satisfy a relationship of B
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公开(公告)号：US11764695B2
公开(公告)日：2023-09-19
申请号：US17632269
申请日：2020-07-08
申请人： Robert Bosch GmbH
CPC分类号： H02M3/33576 , H02M1/0064 , H02M1/322 , H02M3/335 , H02M3/33569 , H02M3/33573
摘要： The present invention relates to a circuit arrangement and to an actuating method for a DC voltage converter, in particular a DC voltage converter with phase-shifted full-bridge topology, wherein power can also be transmitted from the primary side to the secondary side when the electrical voltage on the primary side undershoots the product of the electrical voltage on the secondary side and the transmission ratio of a transformer in the DC voltage converter. In this way, for example, a capacitor on the primary side of the DC voltage converter can be discharged to a safe, low voltage level.
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公开(公告)号：US11742767B2
公开(公告)日：2023-08-29
申请号：US17360052
申请日：2021-06-28
发明人： Laszlo Lipcsei
CPC分类号： H02M3/33576 , H01F27/38 , H02M1/0064 , H02M3/33507 , H02M3/33592
摘要： A flux-corrected switching power converter includes a first transformer, a first switching stage, a controller, and a flux correction current source. The first transformer includes a first magnetic core, a first primary winding, and a first secondary winding, and the first switching stage is electrically coupled to the first secondary winding. The controller is configured to control switching of at least the first switching stage. The flux correction current source is electrically coupled to the first primary winding, and the flux correction current source is configured to inject current into the first primary winding to at least partially cancel magnetic flux in the first magnetic core that is generated by current flowing through the first secondary winding.
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公开(公告)号：US20230261570A1
公开(公告)日：2023-08-17
申请号：US17669702
申请日：2022-02-11
CPC分类号： H02M3/156 , H02M3/003 , H02M1/0064 , H01F29/00
摘要： An integrated voltage regulator (IVR) for on-chip integrated circuit applications may include a tunable inductor that may be adjusted to generate a target output for the IVR. The tunable inductor may include a piezoelectric material that may cause the relative permeability of the inductor to change based on an applied stimulus voltage. A control circuit may receive a target value, such as a target output voltage, and retrieve or calculate a target inductance value or voltage to be applied to the inductor to generate the target output value. A feedback circuit may monitor the output value and adjust the switching frequency or voltage applied to the inductor during operation in order to adjust the output value.
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公开(公告)号：US11705820B2
公开(公告)日：2023-07-18
申请号：US17385384
申请日：2021-07-26
申请人： Vicor Corporation
CPC分类号： H02M3/33576 , H02M3/158 , H02M3/33561 , H02M1/0058 , H02M1/0064 , H02M1/0093
摘要： Apparatus for power conversion are provided. One apparatus includes a power converter including an input circuit and an output circuit. The power converter is configured to receive power from a source for providing power at a DC source voltage VS. The power converter is adapted to convert power from the input circuit to the output circuit at a substantially fixed voltage transformation ratio KDC=VOUT/VIN at an output current, wherein VIN is an input voltage and VOUT is an output voltage. The input circuit and at least a portion of the output circuit are connected in series across the source, such that an absolute value of the input voltage VIN applied to the input circuit is approximately equal to the absolute value of the DC source voltage VS minus a number N times the absolute value of the output voltage VOUT, where N is at least 1.
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公开(公告)号：US11695331B2
公开(公告)日：2023-07-04
申请号：US17633077
申请日：2019-08-05
发明人： Arne Schroeder , Didier Cottet , Wojciech Piasecki , Filip Grecki , Bernhard Wunsch , Torsten Nilsson
CPC分类号： H02M1/44 , H02J3/01 , H02M1/0064 , H02M3/01 , H02M7/003 , H02M7/4835
摘要： A converter apparatus includes a string of electrically interconnected modules that includes a first group of modules comprising a first module and a second group of modules comprising a second module. A first screen is connected to a first defined electric potential and is located adjacent the first group of modules and a second screen is connected to a second defined electric potential and is located adjacent the second group of modules. During operation of the converter apparatus a resonance loop is created from the first module via the first and second screens and the second module back to the first module. A damping unit is located in the resonance loop and is set to dampen electromagnetic noise.
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公开(公告)号：US11671030B2
公开(公告)日：2023-06-06
申请号：US17423584
申请日：2019-06-12
申请人： ABB Schweiz AG
发明人： Kai Tian , Tinho Li , Kuenfaat Yuen , Mei Liang
CPC分类号： H02M7/23 , H02M1/0064 , H02M5/293 , H02M1/0043
摘要： Voltage converter circuits including a first and second branch. The first branch is coupled between a first DC terminal and a second DC terminal and includes a first and second winding around a magnetic core. The first and second winding are coupled to an AC terminal via a common node. The second branch is coupled in parallel to the first branch between the first and second DC terminals and includes a third winding around the magnetic core. The third winding is coupled to the AC terminal such that the first and second branches convert a first voltage into a second voltage. The first, second and third windings are configured to cause magnetic flux generated by a differential mode (DM) component of a first current in the first branch and magnetic flux generated by the DM component of a second current in the second branch to enhance with each other.
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