公开(公告)号：US11979201B2

公开(公告)日：2024-05-07

申请号：US17861828

申请日：2022-07-11

申请人： POWERMAT TECHNOLOGIES LTD.

发明人： Yossi Azancot ,  Arik Rofe ,  Oola Greenwald ,  Amir Ben-Shalom ,  Moti Asheri ,  Alfred Leibovitz

IPC分类号： H02J50/12 ,  H01F38/14 ,  H02J7/00 ,  H02J50/40 ,  H02J50/80 ,  H04B5/00 ,  H02M3/337 ,  H02M7/48

CPC分类号： H04B5/0037 ,  H01F38/14 ,  H02J7/00045 ,  H02J7/0029 ,  H02J7/0047 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80 ,  H01F2038/143 ,  H02M3/3376 ,  H02M7/4815 ,  Y02B70/10

摘要： An inductive power outlet is disclosed. The inductive power outlet has a primary inductor, for wirelessly powering an inductive power receiver. The inductive power outlet has a secondary inductor. The primary inductor and the secondary inductor form a resonant frequency. The inductive power outlet comprises a driver generating an oscillating voltage to the primary coil at a frequency higher than the resonant frequency. The inductive power outlet comprises a signal detector. The signal detector comprises a peak detector configured to detect voltage peaks across the primary inductor or current peaks of a current supplied to the primary inductor. The signal detector comprises a processor configured to determine a frequency of either the voltage peaks or the current peaks.

公开(公告)号：US11881787B2

公开(公告)日：2024-01-23

申请号：US17661094

申请日：2022-04-28

申请人： SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

发明人： Alessandro Zafarana

IPC分类号： H02M3/335 ,  H02M1/08 ,  H02M3/337 ,  H02M1/34 ,  H02M1/00

CPC分类号： H02M3/33576 ,  H02M1/083 ,  H02M1/342 ,  H02M3/337 ,  H02M3/33573 ,  H02M1/0058

摘要： A power converter with secondary side active clamp. At least one example is a method including: limiting a push-phase voltage excursion of a phase node on a secondary side of a power converter during a push phase of a primary side of the power converter, the limiting by extracting current from the phase node and storing the current on a clamp capacitor; limiting a pull-phase voltage excursion of the phase node on the secondary side of the power converter during a pull phase of the primary side of the power converter, the limiting by extracting current from the phase node and storing the current on a clamp capacitor; and utilizing the current stored on the clamp capacitor to drive a component on the secondary side.

公开(公告)号：US11881786B2

公开(公告)日：2024-01-23

申请号：US18117147

申请日：2023-03-03

申请人： Accion Systems, Inc.

发明人： Paul E. Fogel ,  Mikhail Filippov

IPC分类号： F03H1/00 ,  H02M3/335 ,  H01J27/02 ,  H02M1/08 ,  H02M3/337 ,  H02M7/10 ,  H02M1/00 ,  H02M3/00

CPC分类号： H02M3/33573 ,  H01J27/022 ,  H02M1/08 ,  H02M3/335 ,  H02M3/3376 ,  H02M3/33561 ,  H02M3/33569 ,  H02M7/103 ,  H02M1/008 ,  H02M3/003 ,  H02M3/33571

摘要： A polarity-selectable high voltage direct current power supply including a first drive assembly that transforms a first low voltage DC input into a first medium voltage alternating current output; a first HV output assembly that transforms the first LV AC output into a first HV DC output, wherein the first HV output assembly defines a first input stage; a polarity selector coupled between the second output junction of the first drive assembly and the first and second input stages of the first HV output assembly, the polarity selector operable between a first configuration and a second configuration; wherein in the first configuration the first HV DC output has a positive polarity; and wherein in the second configuration the first HV DC output has a negative polarity.

公开(公告)号：US11764686B1

公开(公告)日：2023-09-19

申请号：US17580206

申请日：2022-01-20

申请人： Vicor Corporation

发明人： Patrizio Vinciarelli

IPC分类号： H01H47/00 ,  H02M3/335 ,  H05K1/18 ,  H05K1/02 ,  H05K1/16 ,  H05K3/02 ,  H01F27/28 ,  H01F41/04 ,  H02M3/337 ,  H02M1/44 ,  H01F1/44 ,  H01F3/10 ,  H05K3/00 ,  H02M1/00

CPC分类号： H02M3/33523 ,  H01F1/44 ,  H01F3/10 ,  H01F27/2804 ,  H01F41/041 ,  H02M1/44 ,  H02M3/3376 ,  H02M3/33561 ,  H02M3/33592 ,  H05K1/0298 ,  H05K1/165 ,  H05K1/181 ,  H05K3/0011 ,  H05K3/02 ,  H01F1/447 ,  H01F2003/106 ,  H01F2027/2809 ,  H01F2027/2819 ,  H02M1/008 ,  H02M1/0058 ,  H05K1/0204 ,  H05K1/0265 ,  H05K2201/08 ,  H05K2201/086

摘要： A semiconductor package includes a VLSI semiconductor die and one or more output circuits connected to supply power to the die mounted to a package substrate. The output circuit(s), which include a transformer and rectification circuitry, provide current multiplication at an essentially fixed conversion ratio, K, in the semiconductor package, receiving AC power at a relatively high voltage and delivering DC power at a relatively low voltage to the die. The output circuits may be connected in series or parallel as needed. A driver circuit may be provided outside the semiconductor package for receiving power from a source and driving the transformer in the output circuit(s), preferably with sinusoidal currents. The driver circuit may drive a plurality of output circuits. The semiconductor package may require far fewer interface connections for supplying power to the die.

公开(公告)号：US11594972B2

公开(公告)日：2023-02-28

申请号：US17342487

申请日：2021-06-08

申请人： 3D PLUS

发明人： Cédric Colonna

IPC分类号： H02M3/335 ,  H02M1/00 ,  H02M3/337

摘要： A power converter having a parallel resonant circuit, includes an inverter, a resonant circuit, a transformer comprising a primary circuit and a secondary circuit, control means for the inverter, the inverter being connected to the resonant circuit, which is intended to be connected to an output load via the transformer, the power converter wherein the inverter comprises a first half-bridge and a second half-bridge in parallel with the first half-bridge, a first inductor between the first half-bridge and the resonant circuit, a second inductor between the second half-bridge and the resonant circuit, and in that the first and second inductors have the same inductance and are coupled in the opposite direction to one another.

公开(公告)号：US11532982B2

公开(公告)日：2022-12-20

申请号：US17313007

申请日：2021-05-06

申请人： Chicony Power Technology Co., Ltd.

发明人： Tso-Jen Peng ,  Mao-Song Pan ,  Yi Ching Su

IPC分类号： H02M1/42 ,  H02M3/00 ,  H02M1/38 ,  H02M3/337 ,  H02M3/335 ,  H02M1/00

摘要： The disclosure provides a power supply and an operation method thereof. The power supply includes a power factor correction (PFC) circuit, a resonant conversion circuit and a dead zone control circuit. The PFC circuit performs power factor correction to output a corrected voltage. The resonant conversion circuit is coupled to the PFC circuit to receive the corrected voltage. The resonant conversion circuit converts the corrected voltage into a converted voltage. The dead zone control circuit is coupled to the resonant conversion circuit to receive the switch voltage. The dead zone control circuit controls the PFC circuit to adjust the corrected voltage. The dead zone control circuit observes the change trend of the falling time of the switch voltage in the deadtime by adjusting the corrected voltage. The dead zone control circuit determines the corrected voltage according to the change trend of the switch voltage.

公开(公告)号：US11502614B2

公开(公告)日：2022-11-15

申请号：US16742940

申请日：2020-01-15

申请人： Raytheon Company

发明人： Bradley A. Reese

IPC分类号： H02M3/337 ,  H01F27/24 ,  H01F27/30

摘要： A magnetic component includes a main magnetic core, a power winding coupled to the main magnetic core, a variable reluctance core element arranged in a flux path of the main magnetic core and including a saturable magnetic core and a control winding coupled to the saturable magnetic core. The control winding is isolated relative to the power winding and configured to selectively saturate a section of the saturable magnetic core.

公开(公告)号：US11496064B2

公开(公告)日：2022-11-08

申请号：US17244576

申请日：2021-04-29

申请人： Delta Electronics, Inc.

发明人： Da Jin ,  Yahong Xiong ,  Qinghua Su

IPC分类号： H02M7/48 ,  H02M3/28 ,  H02M3/335 ,  H02M3/337 ,  H02M1/00

摘要： A resonant converter and a manufacturing method of a transformer thereof are provided. The resonant converter includes a full bridge circuit, an element, a first branch circuit, a second branch circuit and a secondary winding. The full bridge circuit includes a first node and a second node. The element includes an inductor or a capacitor. The first branch circuit includes a first primary winding. The second branch circuit includes a second primary winding, and the first and second primary windings have the same turn number. The transformer is constructed by the first and second primary windings and the secondary winding. The first branch circuit, the element and the second branch circuit are sequentially coupled in series between the first and second nodes. The first branch circuit and the second branch circuit are symmetrically located with respect to the element. The first and second branch circuits have the same impedance.

公开(公告)号：US20220321015A1

公开(公告)日：2022-10-06

申请号：US17848720

申请日：2022-06-24

申请人： Alps Alpine Co., Ltd.

发明人： Mitsunao Fujimoto

IPC分类号： H02M3/335 ,  H01F27/40 ,  H02M1/40 ,  H02M3/337

摘要： A direct-current voltage conversion circuit having on/off control with a dead-time period performed alternately on a first switch and a second switch included in a direct-current voltage conversion circuit. When alternating current flows in a series circuit part including two transformers magnetically independent, current flows in an output circuit including a secondary side of one transformer, and energy is accumulated in the other transformer. The permeabilities of the magnetic cores in the first and second transformers is between 15 and 120.

公开(公告)号：US20220271673A1

公开(公告)日：2022-08-25

申请号：US17739675

申请日：2022-05-09

申请人： Accion Systems, Inc.

发明人： Paul E. Fogel ,  Mikhail Filippov

IPC分类号： H02M3/335 ,  H01J27/02 ,  H02M1/08 ,  H02M3/337 ,  H02M7/10

摘要： A polarity-selectable high voltage direct current power supply including a first drive assembly that transforms a first low voltage DC input into a first medium voltage alternating current output; a first HV output assembly that transforms the first LV AC output into a first HV DC output, wherein the first HV output assembly defines a first input stage; a polarity selector coupled between the second output junction of the first drive assembly and the first and second input stages of the first HV output assembly, the polarity selector operable between a first configuration and a second configuration; wherein in the first configuration the first HV DC output has a positive polarity; and wherein in the second configuration the first HV DC output has a negative polarity.