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公开(公告)号：US20190199236A1
公开(公告)日：2019-06-27
申请号：US16291267
申请日：2019-03-04
申请人： ESAB AB
发明人： Andrzej Mnich
CPC分类号： H02M7/4826 , B23K9/1043 , H02M3/3155 , H02M3/33584 , H02M5/4585 , H02M7/48 , H02M7/4807 , H02M7/505 , H02M7/5236 , H02M7/797
摘要： A power supply, including a primary pre-converter, coupled to supplying mains, configured to receive an AC voltage at low frequency and output a high DC voltage, and further configured to receive the high DC voltage and to output the alternating current; a primary converter, disposed on a primary side of the power supply, coupled to the high DC voltage from the primary pre-converter; an isolating transformer to receive the high frequency AC voltage and output a high frequency secondary AC voltage, and to receive a high frequency secondary AC current and to output primary high frequency AC current; and an output converter, on a secondary side of the power supply, wherein the output converter is configured to receive high frequency AC voltage from the isolating transformer and to output a DC voltage of a first or second polarity to an output, and wherein the output converter is configured to receive DC current of a first or second direction from the output and to output a high frequency AC current to the isolating transformer.
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公开(公告)号：US20190165725A1
公开(公告)日：2019-05-30
申请号：US16129811
申请日：2018-09-13
申请人： OMRON Corporation
发明人： Atsuo MINATO , Katsumi OHASHI , Arata YONEDA , Kazumi TSUCHIMICHI , Katsutaka TANABE , Junichiro YAMADA , Yasuhiro TSUBOTA
CPC分类号： H02S40/32 , H02J3/383 , H02M7/4807 , H02M7/515 , H02S40/38
摘要： A voltage transform part transforms the direct-current power input to an input part. A first input and output part outputs the transformed direct-current power to a battery unit and to which direct-current power is input from the battery unit. A conversion part converts the direct-current power input to the input part into alternating-current power. A second input and output part outputs the alternating-current power to a power system or a load and to which an alternating-current power is input from the power system. The conversion part converts the alternating-current power input to the second input and output part into direct-current power. The second voltage transform part transforms the direct-current power converted by the conversion part and transforms the direct-current power input to the first input and output part. The conversion part converts the direct-current power transformed by the second voltage transform part into alternating-current power.
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公开(公告)号：US20180367060A1
公开(公告)日：2018-12-20
申请号：US15626274
申请日：2017-06-19
申请人： ESAB AB
发明人： Andrzej Mnich
CPC分类号： H02M7/4826 , B23K9/00 , H02M3/3155 , H02M3/33584 , H02M5/4585 , H02M7/48 , H02M7/4807 , H02M7/505 , H02M7/5236 , H02M7/797
摘要： A power supply, including a primary pre-converter, coupled to supplying mains, configured to receive an AC voltage at low frequency and output a high DC voltage, and further configured to receive the high DC voltage and to output the alternating current; a primary converter, disposed on a primary side of the power supply, coupled to the high DC voltage from the primary pre-converter; an isolating transformer to receive the high frequency AC voltage and output a high frequency secondary AC voltage, and to receive a high frequency secondary AC current and to output primary high frequency AC current; and an output converter, on a secondary side of the power supply, wherein the output converter is configured to receive high frequency AC voltage from the isolating transformer and to output a DC voltage of a first or second polarity to an output, and wherein the output converter is configured to receive DC current of a first or second direction from the output and to output a high frequency AC current to the isolating transformer.
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公开(公告)号：US20180219501A1
公开(公告)日：2018-08-02
申请号：US15422604
申请日：2017-02-02
CPC分类号： H02P9/007 , H02M1/08 , H02M1/44 , H02M3/33584 , H02M3/337 , H02M7/4807 , H02M7/49 , H02M2001/0058 , H02M2007/4815
摘要： Systems and methods for operating a power converter with a plurality of inverter blocks with silicon carbide MOSFETs are provided. A converter can include a plurality of inverter blocks. Each inverter block can include a plurality of switching devices. The plurality of switching devices can include one or more silicon carbide MOSFETs. A control method can include providing, by a control system, one or more gating commands to a first inverter block in the plurality of inverter blocks. The control method can further include implementing, by the control system, a gating command delay to generate a first delayed gating command based at least in part on the one or more gating commands. The control method can further include providing, by the control system, the first delayed gating command to a second inverter block in the plurality of inverter blocks.
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公开(公告)号：US20180205335A1
公开(公告)日：2018-07-19
申请号：US15405712
申请日：2017-01-13
IPC分类号： H02P9/10 , H02M5/458 , H02M1/084 , H02M1/32 , H02J3/38 , F03D7/04 , H02P9/00 , H02K7/18 , H02K11/33
CPC分类号： H02M5/4585 , F03D7/0272 , F03D7/042 , H02J3/386 , H02K7/183 , H02K11/33 , H02M3/33584 , H02M5/458 , H02M7/4807 , H02M7/5387 , H02M7/797 , H02M2001/0032 , H02M2001/007 , H02P9/007 , Y02B70/16 , Y02E10/763
摘要： Systems and methods for operating a power converter are provided. A DC to AC converter can include an inner converter and an outer converter. The inner converter can include an isolation transformer a first plurality of switching devices. The outer converter can include a second plurality of switching devices. A control method can include determining an output voltage of the outer converter. The control method can further include controlling operation of the inner converter based at least in part on the output voltage of the outer converter.
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公开(公告)号：US20180198380A1
公开(公告)日：2018-07-12
申请号：US15866392
申请日：2018-01-09
IPC分类号： H02M7/219 , H02M1/42 , H02M7/155 , H03K17/30 , H03K17/06 , H02M7/5388 , H03K17/74 , H02M1/00
CPC分类号： H02M7/219 , H01L2924/13091 , H02M1/4233 , H02M1/4258 , H02M7/155 , H02M7/4807 , H02M7/5388 , H02M2001/0058 , H02M2007/2195 , H03K17/06 , H03K17/302 , H03K17/74 , Y02B70/1491
摘要： An AC/DC conversion circuit, including: four bidirectional switches forming an H bridge; a capacitor connected between input nodes of the bridge; a capacitor connected between output nodes of the bridge; and a control circuit capable of controlling the bridge alternately to a first configuration where first and second diagonals of the bridge are respectively conductive and non-conductive, and to a second configuration where the first and second diagonals are respectively non-conductive and conductive, the control circuit being capable, during a phase of transition between the first and second configurations, of: turning off the switches of the first diagonal; and for each switch of the second diagonal, turning on the switch only when the voltage thereacross takes a zero value.
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公开(公告)号：US20180159325A1
公开(公告)日：2018-06-07
申请号：US15367664
申请日：2016-12-02
申请人： Lear Corporation
发明人： Krzysztof KLESYK
CPC分类号： H02J3/00 , B60L1/00 , B60L1/003 , B60L53/22 , B60L2210/10 , B60L2210/40 , H02J7/0052 , H02J7/022 , H02M1/32 , H02M3/33507 , H02M7/4807 , H02M7/797
摘要： In at least one embodiment, a bi-directional power conversion device including a DC/DC converter, an inverter, and a bi-directional store device is disclosed. The DC/DC converter is configured to generate a first direct current (DC) output in response to a first DC input in a consumer mode and to receive a second DC input to power the low voltage zone in a vehicle charge mode. The inverter is configured to generate an alternating current (AC) output to power at least one consumer device in response to the first DC output in the consumer mode and to provide the second DC input to the DC/DC converter in response to an AC input signal from an AC power source in the vehicle charge mode. The bi-directional storage device is configured to store the first DC output in the consumer mode and to store the second DC input in the vehicle charge mode.
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公开(公告)号：US20180152095A1
公开(公告)日：2018-05-31
申请号：US15855183
申请日：2017-12-27
发明人： Hua Bai , Juncheng Lu
CPC分类号： H02M1/12 , H02M1/15 , H02M1/42 , H02M1/4258 , H02M3/33507 , H02M5/225 , H02M5/4585 , H02M7/4807 , H02M2001/0058 , H02M2001/007 , Y02B70/12 , Y02B70/1491
摘要： A single-phase AC/DC electric power conversion apparatus includes an indirect matrix converter having an input interface to receive a first alternating current (AC) signal and an output interface to produce a second AC signal, where the first AC signal has a grid frequency. A transformer has a primary winding and an electrically isolated and magnetically coupled secondary winding. A coupling inductor is connected in series between the output interface of the indirect matrix converter and the primary winding. An H-bridge switching arrangement is connected to the secondary winding and produces an output signal having a DC component and at least one AC component. The at least one AC component has a second order harmonic of the grid frequency. An active filter reduces the second order harmonic AC component. A modular conversion apparatus for three-phase power replicates the single-phase apparatus as a module for each phase and omits the active filter.
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公开(公告)号：US09985626B2
公开(公告)日：2018-05-29
申请号：US15011301
申请日：2016-01-29
发明人： Daniel M. Kinzer , Ju Jason Zhang
IPC分类号： H03K17/687 , H02M7/5387 , H01L29/20 , H01L27/06
CPC分类号： H03K17/6871 , H01L27/0629 , H01L29/2003 , H02M3/33584 , H02M7/4807 , H02M7/5387 , H03K17/165 , H03K2017/307 , Y02B70/1483
摘要： A DC-AC converter is disclosed. The DC-AC converter generates an output AC signal, and has an input DC-AC converter which generates a first AC signal, a transformer device which receives the first AC signal and generates a second AC signal, and a first bidirectional switch which selectively connects a first transformer output terminal and a first output terminal. The DC-AC converter also has a first capacitor which powers the first bidirectional switch, a first charging circuit which charges the first capacitor, and a second bidirectional which selectively conduct connects a second transformer output terminal and a second output terminal. The DC-AC converter also has a second capacitor which powers the second bidirectional switch, and a second charging circuit which charges the second capacitor. Each of the bidirectional switches includes series connected transistors between first and second input/output terminals, and a transistor driver which drives the transistors.
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公开(公告)号：US09923483B2
公开(公告)日：2018-03-20
申请号：US15163329
申请日：2016-05-24
发明人： Sven Bremicker
CPC分类号： H02M7/4807 , H02J3/383 , H02M1/12 , H02M1/126 , H02M5/458 , H02M7/487 , H02M2001/123 , Y02E10/563
摘要： A method of operating a transformerless inverter connected on the input side to a generator and on the output side to a multiphase AC grid and comprising a multi-phase inverter bridge with a switch between a midpoint of a DC intermediate circuit on the input side and a terminal for a neutral conductor of the multiphase AC grid, includes feeding electric power from the DC intermediate circuit into the AC grid by the inverter bridge with the switch closed when first operating conditions are present, and opening the switch when there is a transition from the first operating conditions to second operating conditions different from the first operating conditions. The method further includes feeding electric power from the DC intermediate circuit into the AC grid by the inverter bridge with the switch open when the second operating conditions are present, and closing the switch when there is a transition from the second operating conditions to the first operating conditions.
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