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公开(公告)号：US20240313642A1
公开(公告)日：2024-09-19
申请号：US18208953
申请日：2023-06-13
发明人： TE-HUNG YU , YU-CHENG LIN , MIN-HAO HSU , CHIA-HUI LIANG
CPC分类号： H02M1/4225 , H02M1/0064 , H02M3/158
摘要： A power factor correction circuit includes a first switch, a second switch, a third switch, a fourth switch, a fifth switch, a sixth switch, a seventh switch, a first inductance coil, a second inductance coil, a first capacitor, and a second capacitor. The first switch is connected to the second switch, the third switch, and the first inductance coil. The fifth switch is connected to the third switch and the second inductance coil. The sixth switch is connected to the first switch, the fourth switch, and the seventh switch. The seventh switch is further connected to the second switch, the first capacitor, and the second capacitor. The second inductance coil is further connected to the fourth switch and the first capacitor. The second capacitor is connected to the fourth switch, the sixth switch, and the first switch.
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公开(公告)号：US12068674B2
公开(公告)日：2024-08-20
申请号：US17588402
申请日：2022-01-31
发明人： Haijun Yang , Zengyi Lu , Lijun Zhou
CPC分类号： H02M1/0064 , H01F27/24 , H01F27/306 , H01F27/38 , H02M3/1586 , H01F37/00 , H02M1/0043 , H02M3/01 , H02M3/335
摘要： An integrated inductor and a power conversion module including the integrated inductor are provided. The integrated inductor includes a magnetic core, the magnetic core including two cover plates, two side columns and two central columns between the two side columns, and two windings wound around the two central columns respectively, forming two inductors. Each operating current flowing through the two windings includes a corresponding high-frequency current component, a phase difference between the high-frequency current components of the operating currents flowing through the two windings is 180 degrees.
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公开(公告)号：US20240195311A1
公开(公告)日：2024-06-13
申请号：US18174193
申请日：2023-02-24
发明人： Min-Han LEE
CPC分类号： H02M3/33573 , H02M1/0064 , H02M1/4225 , H02M3/33523
摘要： An asymmetric power converter includes a primary-side rectifying/filtering circuit, a power factor correction circuit, an asymmetric conversion circuit, and a feedback control circuit. The primary-side rectifying/filtering circuit rectifies and filters an input voltage to output a first voltage. The power factor correction circuit converts the first voltage into a power voltage. The asymmetric conversion circuit converts the power voltage into an output voltage to supply power to a load, and an output current is drawn by the load. The feedback control circuit generates a feedback control signal according to a load power demand provided by the load. The feedback control circuit controls the asymmetric conversion circuit to operate in a full-bridge resonant mode, a half-bridge resonant mode, or a hybrid half-bridge resonant mode according to the feedback control signal.
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公开(公告)号：US12009734B2
公开(公告)日：2024-06-11
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： H02M7/537 , H02M1/00 , H02M7/5387
CPC分类号： H02M1/0064 , H02M1/0012 , H02M7/53871
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：US11949329B2
公开(公告)日：2024-04-02
申请号：US17261739
申请日：2019-06-07
发明人： Changsun Yun , Hyunkwan Lee
CPC分类号： H02M1/44 , H02M1/0064 , H05B6/062 , H05B6/1272
摘要： Disclosed is an induction heating cooking apparatus. The induction heating cooking apparatus includes a countertop having plurality of cooking areas in which each cooking container can be seated, a plurality of coils provided under the countertop, a main substrate, and an auxiliary substrate separated from the main substrate. The main substrate is provided with a plurality of inverters each connected to a plurality of coils, a noise filter providing a plurality of inverters with a voltage from which noise from an external power supply is removed, and a plug connectable to the external power supply. The auxiliary substrate is provided with an input terminal to which the power line from the plug is connected, an output terminal to which the power line facing the noise filter is connected, and a discharge circuit part connected to the noise filter.
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公开(公告)号：US11916488B2
公开(公告)日：2024-02-27
申请号：US17376102
申请日：2021-07-14
发明人： Yanbo Zou , Fada Du , Chao Tang , Wenjie Lin
CPC分类号： H02M3/33576 , H01F27/2804 , H02M1/0064 , H01F2027/2809 , H01F2027/2819 , H05K2201/086
摘要： The present invention provides a high efficiency, high density GaN-based power converter comprising: a transformer; a magnetic coupler; a primary switch; a secondary switch; a primary controller; a secondary controller; a multi-layered print circuit board (PCB) comprising: one or more planar coils respectively formed on one or more PCB layers and aligned with each other for constructing the transformer and the coupler; and a plurality of conducting traces and vias for providing electrical connection among the transformer, the coupler, a primary switch, a secondary switch, a primary controller and a secondary controller. The power converter further comprises a pair of ferrite cores being fixed to a top surface and a bottom surface of the PCB respectively and commonly shared by the transformer and the coupler.
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公开(公告)号：US11870332B2
公开(公告)日：2024-01-09
申请号：US17540006
申请日：2021-12-01
发明人： Zhengyu Ye , Xueliang Chang , Shengli Lu
IPC分类号： H02M1/00
CPC分类号： H02M1/0095 , H02M1/0064
摘要： The present disclosure provides a power conversion circuit including input positive and negative terminals, output positive and negative terminals, an input inductor, two bridge arms, a transformer, an output capacitor and an auxiliary capacitor. The input and output negative terminals are connected. A first terminal of the input inductor is coupled to the input positive terminal. Each bridge arm includes three switches connected in series and two connection points between the switches. The winding of the transformer is coupled in series between the connection points of the two bridge arms, and two windings of the transformer are connected and form a connection point coupled to the output positive terminal. Two terminals of the output capacitor are electrically connected to the output positive and negative terminals respectively. Two terminals of the auxiliary capacitor are electrically connected to a second terminal of the input inductor and the output terminal respectively.
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公开(公告)号：US20240006979A1
公开(公告)日：2024-01-04
申请号：US18253737
申请日：2021-11-19
CPC分类号： H02M1/0064 , H02M3/33523
摘要： A flyback converter system is provided. The flyback converter system includes a transformer system having a magnetic core. The flyback converter system further includes a flyback converter circuitry having a primary circuitry and a secondary circuitry, where the flyback converter circuitry is electrically coupled to the transformer system, and where the flyback converter circuitry is configured to recycle energy from a leakage flux via the primary circuitry and to transfer the energy to the secondary circuitry.
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公开(公告)号：US20230361687A1
公开(公告)日：2023-11-09
申请号：US18312611
申请日：2023-05-05
发明人： Hugues NJIENDE
CPC分类号： H02M3/33584 , H01F27/38 , H02M1/0064 , B60L53/20 , B60L2210/10
摘要： The present disclosure provides a bidirectional LLC resonant converter and an integrated magnetic component for such a bidirectional LLC resonant converter. In order to increase the power density of such a converter, the I cores of the corresponding conventional converter are removed and the remaining windings (P1, S1, Lr1, Lr2) for the transformer and the series resonant chokes are arranged and connected such that the magnetic fluxes generated in the yokes of the transformer core elements (E3, E4) at least partially compensate each other. In another example, the windings and the core elements of the series resonant chokes are removed as well and the series resonant inductances are implemented by windings air gaps provided between the primary and the secondary windings wound on the transformer core elements.
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公开(公告)号：US20230318475A1
公开(公告)日：2023-10-05
申请号：US18129147
申请日：2023-03-31
申请人： Lenze Swiss AG
CPC分类号： H02M5/2932 , H02M1/0064 , H02M1/0012
摘要： A frequency converter includes an intermediate circuit capacitor at which an intermediate circuit voltage is present, an inverter for generating control signals with a variable frequency and a variable amplitude from the intermediate circuit voltage, and a circuit for measuring the intermediate circuit voltage. The circuit for measuring the intermediate circuit voltage includes a resistive voltage divider, the intermediate circuit voltage being applied to the first side of the resistive voltage divider and the second side of the latter being electrically connected to a reference potential, a capacitive voltage divider, the intermediate circuit voltage being applied to the first side of the capacitive voltage divider and the second side of the latter being electrically connected to the reference potential, at least one connecting node of resistors of the resistive voltage divider being electrically connected to a corresponding connecting node of capacitors of the capacitive voltage divider, and an evaluation unit which evaluates a measurement voltage generated by means of the resistive voltage divider and the capacitive voltage divider for the purpose of measuring the intermediate circuit voltage.
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