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公开(公告)号：US12132396B2
公开(公告)日：2024-10-29
申请号：US17778022
申请日：2022-03-04
CPC分类号： H02M1/4208 , G05F1/56 , H02M7/06
摘要： The present invention provides a nitride-based power factor correction (PFC) circuit for improving power distribution efficiency from an AC power supply to a load. The PFC circuit comprises a nitride-based bidirectional switch and a controlling circuit having a first switching node and a second switching node electrically coupled to a first control terminal and a second control terminal of the bidirectional switch respectively. The provided nitride-based PFC circuit has high efficiency over a broad range of input voltage, a simpler circuit topology with smaller component size.
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公开(公告)号：US20240356456A1
公开(公告)日：2024-10-24
申请号：US18761211
申请日：2024-07-01
申请人： Epinovatech AB
IPC分类号： H02M7/217 , B60L50/60 , B60L53/24 , H01L29/778 , H02J7/02 , H02M1/00 , H02M3/158 , H02M7/06 , H02M7/21 , H03K17/10 , H03K17/16
CPC分类号： H02M7/217 , B60L50/60 , B60L53/24 , H01L29/778 , H02J7/02 , H02M1/0048 , H02M3/158 , H02M7/06 , H02M7/21 , H03K17/102 , H03K17/163 , B60L2210/30 , B60L2210/40 , H01M2220/20 , H01M2220/30 , H02M1/0045 , H02M1/007
摘要： There is provided an AC-DC converter circuit (100) for high power charging of an electrical battery. The circuit comprises an input rectifier comprising a first node and a second node. The input rectifier (110) is configured to receive an AC voltage at the first node (112) and provide a rectified voltage at the second node (114). The circuit further comprises a first transistor (120), comprising a first gate node (122), a first source node (124), and a first drain node (126). The first drain node is connected to the second node of the input rectifier. The first gate node is connected to a ground node (170). The circuit further comprises a second transistor (130), comprising a second gate node (132), a second source node (134), and a second drain node (136). The second drain node is connected to the first source node. The second transistor materially corresponds to the first transistor. The circuit further comprises a duty cycle control unit (140) connected to the second gate node for providing the second transistor with a switching waveform. The circuit further comprises an output rectifier (150) connected to the second source node or the first source node. The circuit further comprises an output electronic filter (160) connected to the second source node or an output node (151) of the output rectifier. An AC-DC converter device, a method for charging an electrical battery, and a regenerative braking system is also provided.
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公开(公告)号：US20240322720A1
公开(公告)日：2024-09-26
申请号：US18577635
申请日：2022-07-20
发明人： Philippe NANEIX
CPC分类号： H02P9/02 , B64D47/00 , H02M5/2932 , H02M7/06 , H02M7/539
摘要： An electrical converter includes an inverter configured to provide at least one input AC voltage from an input DC voltage (VE). The electrical converter further includes an AC-to-AC voltage converter configured to provide an output AC voltage from the at least one input AC voltage such that the output AC voltage has an amplitude that depends on a frequency of the at least one input AC voltage. A rectifier is configured to provide an output DC voltage from the output AC voltage.
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4.发明授权公开(公告)号：US12095356B2
公开(公告)日：2024-09-17
申请号：US17893781
申请日：2022-08-23
发明人： Jing Ma , Yufeng Zhao , Jialun Li , Zhencun Nie , Tong Jiang , Zengping Wang , Qixun Yang
摘要： The invention relates to a fault transient features optimization method and system of AC/DC system based on dissipated energy, which belongs to the HVDC transmission technology and is used to solve the problem that the DC pulsed current is too high and the generator power angle swing of the AC system on the rectifier side is too large during the process of the HVDC transmission system restart on fault. The method includes the following steps: obtaining the output current and outlet bus voltage of the generator during the whole process of fault recovery of the AC/DC system under the current control parameters when adjusting the control parameters of the rectifier, and obtain multiple sets of control parameters and their corresponding output current and outlet bus voltage of the generator during the whole process of fault recovery of the AC/DC system; for each set of control parameters, calculating cumulative value of dynamic dissipated energy of the generator under the set of control parameters based on the output current and outlet bus voltage of the generator during the whole process of DC system fault recovery; selecting the set of control parameters that minimizes the cumulative value of dynamic dissipated energy of the generator as the optimal control parameter in the process of fault transient features optimization.
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公开(公告)号：US12088213B2
公开(公告)日：2024-09-10
申请号：US17747565
申请日：2022-05-18
申请人： Marco Tremblay , Sheila Tremblay
发明人： Marco Tremblay , Sheila Tremblay
CPC分类号： H02M7/2176 , H02M3/1586 , H02M7/06 , B60L53/67 , H02J7/02
摘要： There is described a power supply unit having at least one alternating current (AC) input and at least one direct current (DC) output for producing an output voltage. The power supply unit comprises at least one input transformer coupled to the at least one AC input and at least one rectification circuit defining an AC side and a DC side, and coupled to the at least one input transformer on the AC side. The at least one rectification circuit comprises a diode rectifier section on the AC side comprising at least one set of diode rectifiers, and a controlled rectifier section in series with the diode rectifier section and configured for producing a variable load voltage to modulate the output voltage between a base voltage and a maximum value of the output voltage using at least one set of three single-phase controlled rectifiers usable as one to three DC outputs to form a three-phase controlled rectifier.
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公开(公告)号：US20240291382A1
公开(公告)日：2024-08-29
申请号：US18655778
申请日：2024-05-06
发明人： Jun WANG , Shaolei CHEN , Chuangpeng LI , Dongsheng ZHAO , Chenglong MA
CPC分类号： H02M1/4208 , H01F27/24 , H01F27/28 , H02M7/06
摘要： An inductor, a power factor correction circuit, and a power supply system. The inductor includes a coil winding and a magnetic core. The magnetic core includes a first outer magnetic core, a second outer magnetic core, and a winding unit. The first outer magnetic core and the second outer magnetic core are disposed opposite to each other in a first direction, the winding unit is disposed between the first outer magnetic core and the second outer magnetic core, and the coil winding is disposed around the winding unit. The winding unit includes a magnetic core middle column and at least two air-gaps distributed in the first direction. The inductor can improve the operating efficiency of the power factor correction circuit and can optimize efficiency of the power supply system in the light load phase.
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公开(公告)号：US12074511B2
公开(公告)日：2024-08-27
申请号：US17627367
申请日：2019-11-06
发明人： Hiroki Suzuki , Keiichiro Shizu , Tomohiro Kutsuki
CPC分类号： H02M1/32 , F25B49/022 , H02M7/06 , H02P27/06 , H05K7/209 , F25B2600/021
摘要： A direct current power supply device includes a rectifier circuit that rectifies alternating current power supplied from an alternating current power supply and converts the alternating current power into direct current power, a charge storage unit that includes a function of storing a charge, a charger that charges the charge storage unit, and a heat sink. The charger includes a positive-side switching element, a negative-side switching element, a positive-side backflow prevention diode, and a negative-side backflow prevention diode. The positive-side switching element, the negative-side switching element, the positive-side backflow prevention diode, and the negative-side backflow prevention diode are discrete semiconductor elements. The negative-side backflow prevention diode is a full mold package element. The positive-side switching element, the negative-side switching element, and the positive-side backflow prevention diode are elements that are not full mold packages.
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公开(公告)号：US20240275298A1
公开(公告)日：2024-08-15
申请号：US18643420
申请日：2024-04-23
发明人： Yannick HAGUE , Romain LAUNOIS
摘要： Disclosed herein is a voltage converter including input nodes configured to receive an input voltage, output nodes configured to deliver an output voltage, a rectifying bridge coupled between the input nodes and the output nodes, a capacitor and a resistor series-coupled between the output nodes, and a thyristor coupled between one terminal of the resistor and a given one of the output nodes, wherein the thyristor is configured to allow flow of a positive current from the resistor to the given one of the output nodes. A control input is configured to receive a control signal, wherein the control signal biases a gate of the thyristor to control the flow of current through the thyristor. transient voltage suppressor circuit is coupled to the gate of the thyristor, configured to activate the thyristor upon exceeding a threshold voltage.
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公开(公告)号：US12051984B2
公开(公告)日：2024-07-30
申请号：US17164054
申请日：2021-02-01
IPC分类号： H02M7/5387 , H01R13/03 , H02M7/06 , H01R43/00
CPC分类号： H02M7/5387 , H01R13/03 , H02M7/06 , H01R43/005
摘要： Methods and systems to transform an alternating current into constant-polarity constant or pulsed voltages, provide these to a first group of contacts of an electrical connector assembly such that none of the contacts is subjected to polarity reversal, receive the constant-polarity constant or pulsed voltages from a second group of contacts of the electrical connector assembly, and reconstruct the alternating current from these voltages.
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公开(公告)号：US12039393B2
公开(公告)日：2024-07-16
申请号：US18157333
申请日：2023-01-20
申请人： IDEMIA FRANCE
发明人： Ahmed Ali
IPC分类号： G06K19/077 , H02M7/06
CPC分类号： G06K19/07773 , H02M7/06
摘要： A method for manufacturing a contactless chip card that makes provision to obtain a voltage-rectifying-circuit-forming printed-circuit module incorporating one or more SMDs forming a full-wave bridge rectifier, to place this module in a punch provided in a conventional chip-card substrate, then, to form an NFC wire radiofrequency antenna by embedding a conductive wire in the bulk of the substrate, the ends of which are soldered to input terminals of the module. Other electronic modules operating on DC currents are then easily integrated into the card, electrical links with the rectifier module also being produced by embedding an electrical wire in the bulk of the substrate. The disclosure advantageously allows the combination of low cost embedding of a conductive wire by ultrasound to form a radiofrequency antenna and the flexibility of use of SMDs.
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