-
公开(公告)号：US20230261559A1
公开(公告)日：2023-08-17
申请号：US18025959
申请日：2021-09-13
Applicant: REDLER TECHNOLOGIES LTD.
Inventor： Yesaiahu REDLER
CPC classification number: H02M1/0048 , B60L58/10 , H02J7/0013 , H02J7/0047 , H02M1/14 , H02M1/0074 , H02M3/1582 , H02P27/08 , H02J2207/20 , H02M3/07
Abstract: A “Versatile Power Stack Unit” (VPSU) for controlling electrical devices such as motors for electric vehicles is disclosed. The VPSU uses a DC/DC buck-boost converter that generates output voltage. By varying the voltage according to need, the system can maintain a Pulse-Width Modulation duty cycle of 50% without introducing any ripple current or voltage into the batteries or system, while minimizing losses due to internal resistance. Any number of VPSUs can be connected one to the other in order to provide the voltage and current needed to power the electrical device. Not only does the VPSU minimize ripple current and losses due to internal resistance, but it enables recharging at low voltage and according to the needs of small numbers of batteries with minimal temperature rise during the charging, thereby extending battery lifetime and improving battery performance.
-
公开(公告)号：US11722129B2
公开(公告)日：2023-08-08
申请号：US17711480
申请日：2022-04-01
Applicant: Ford Global Technologies, LLC
Inventor： Yantao Song , Baoming Ge , Lihua Chen , Serdar Hakki Yonak
IPC: H03K17/082 , H02M1/34 , H03K17/567 , H02M1/00
CPC classification number: H03K17/0822 , H02M1/34 , H03K17/567 , H02M1/0048 , H02M1/344
Abstract: An automotive vehicle includes an electric machine, a traction battery, and a power converter. The power converter transfers power between the electric machine and traction battery. The power convert includes a switch that defines a portion of a phase leg, a gate driver circuit that provides provide power to a gate of the switch, and a clamping circuit. The clamping circuit includes a clamping switch that, responsive to the gate driver circuit being de-energized and a voltage of the gate exceeding a predetermined threshold value, conducts current from the gate to dissipate the voltage and clamp the gate to an emitter of the switch.
-
公开(公告)号：US20230238876A1
公开(公告)日：2023-07-27
申请号：US17997166
申请日：2021-04-28
Inventor： Daifei ZHANG , Mattia GUACCI , Johann Walter KOLAR , Jordi EVERTS
Abstract: An AC-DC converter may include three phase terminals, two DC terminals, a first converter stage to convert between an AC current at the phase terminals and a first DC current at the first and second intermediate nodes, a second converter stage operable to convert between a first DC signal at third and fourth intermediate nodes and a second DC signal at the DC terminals, a first filter stage comprising a capacitor network having a star-point, a DC link connecting the first intermediate node to the third intermediate node and the second intermediate node to the fourth intermediate node. The second converter stage includes a middle voltage node between the DC terminals and a boost circuit having a midpoint node at the same electrical potential as the middle voltage node. The DC link includes a common mode filter having a common mode capacitor connecting the middle voltage node to the star-point.
-
公开(公告)号：US11689099B2
公开(公告)日：2023-06-27
申请号：US17532347
申请日：2021-11-22
Applicant: Volpe and Koenig, P.C.
Inventor： Eran Ofek
CPC classification number: H02M1/4233 , H02M1/12 , H02M3/07 , H02M7/219 , H02M1/0035 , H02M1/0048 , H02M7/4815 , Y02B70/10
Abstract: A power converter and a method of operation thereof is disclosed including an input, an output, a sensor unit, a switched power converter, and a processor module. The power converter may convert an input power into an output power. The power converter may sense real-time measurements of the input power and the output power to determine a real-time calculated efficiency. The power converter may chop the input power into sized and positioned portions of the input power based on a plurality of determined operating parameters. The power converter may determine the operating parameters based on the real-time calculated efficiency and on a plurality of other operating factors/conditions.
-
公开(公告)号：US20230155509A1
公开(公告)日：2023-05-18
申请号：US17893984
申请日：2022-08-23
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Shouyu Hong , Tao Wang , Haibin Xu , Weicheng Zhou , Min Zhou , Yiqing Ye
CPC classification number: H02M3/1584 , H02M3/003 , H02M1/0048 , H02M1/0064 , H02M1/44
Abstract: A switching module includes at least one substrate, at least one switching element, at least one control loop, a first power part and a second power part. The at least one switching element is disposed on the at least one substrate. The at least one control loop is connected with the corresponding switching element. The first power part is connected with the corresponding switching element. The second power part is connected with the corresponding switching element. A direction of a first current flowing through the first power part and a direction of a second current flowing through the second power part are identical. A projection of the first power part on a reference plane and a projection of the second power part on the reference plane are located at two opposite sides of a projection of the control loop on the reference plane.
-
Patent Agency Ranking
公开(公告)号：US20230155508A1
公开(公告)日：2023-05-18
申请号：US17527482
申请日：2021-11-16
Applicant: Infineon Technologies Austria AG
Inventor： Gerald Deboy , Matthias J. Kasper
CPC classification number: H02M3/1584 , H02M1/14 , H02M1/0048
Abstract: An apparatus such as a power supply or other suitable entity includes a controller. The controller receives a target ripple current value indicative of a ripple current associated with an output voltage and corresponding output current of a power converter powering a load. The controller selects a switching frequency of operating the power converter as a function of a magnitude of the received target ripple current value. The controller applies the selected switching frequency to switches in the power converter to produce the output current with a magnitude of the ripple current as indicated by the target ripple current value.
-
公开(公告)号：US20240364231A1
公开(公告)日：2024-10-31
申请号：US18682514
申请日：2022-10-13
Applicant: Hitachi Power Semiconductor Device, Ltd.
Inventor： Yoshihiro MIWA , Hiroyuki SHOJI , Junichi SAKANO , Tomoyuki UTSUMI , Takahiro HIGUCHI
CPC classification number: H02M7/219 , H02M1/08 , H02M1/0048
Abstract: A first MOSFET, a second MOSFET, a first control circuit, and a second control circuit are provided; the second MOSFET is in a non-rectification period when the first MOSFET is in a rectification period; the first MOSFET is in a non-rectification period when the second MOSFET is in a rectification period; the first control circuit outputs a voltage generated on the basis of a first input voltage as a first output voltage between the gate and the source of the first MOSFET in at least a portion of a period in which a voltage between the drain and the source of the second MOSFET is inputted as the first input voltage and a negative voltage is applied between the drain and the source of the first MOSFET; the second control circuit outputs a voltage generated on the basis of a second input voltage as a second output voltage between the gate and the source of the second MOSFET in at least a portion of a period in which a voltage between the drain and the source of the first MOSFET is inputted as the second input voltage and a negative voltage is applied between the drain and the source of the second MOSFET.
-
公开(公告)号：US20240356456A1
公开(公告)日：2024-10-24
申请号：US18761211
申请日：2024-07-01
Applicant: Epinovatech AB
Inventor： Martin Andreas Olsson
IPC: H02M7/217 , B60L50/60 , B60L53/24 , H01L29/778 , H02J7/02 , H02M1/00 , H02M3/158 , H02M7/06 , H02M7/21 , H03K17/10 , H03K17/16
CPC classification number: 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
Abstract: 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.
-
公开(公告)号：US20240297569A1
公开(公告)日：2024-09-05
申请号：US18578445
申请日：2022-07-11
Applicant: ECOLE DE TECHNOLOGIE SUPERIEURE
Inventor： Mohammad SHARIFZADEH , Kamal AL-HADDAD
IPC: H02M1/00 , H02M7/5387
CPC classification number: H02M1/0048 , H02M7/53871
Abstract: There is described a power converter for transforming electrical power between direct current (DC) power and alternating current (AC) power. The power converter has a first stage comprising a first branch having a first pair of series-connected switches, a second branch having a second pair of series-connected switches, and a capacitor connected between the first and second branches: a second stage comprising a third branch having a first plurality of series-connected switches, a fourth branch having a second plurality of series-connected switches, and a plurality of capacitors connected between the third and fourth branches at respective connection points located between intermediate switches of the first and second pluralities of series-connected switches; and a connection branch coupling the first stage and the second stage.
-
公开(公告)号：US12040716B2
公开(公告)日：2024-07-16
申请号：US17642704
申请日：2019-11-21
Applicant: Mitsubishi Electric Corporation
Inventor： Hiroyuki Yoshino , Tomokazu Sakashita
CPC classification number: H02M3/1586 , H02M1/0048
Abstract: A DC/DC converter includes N converters connected in parallel and each having an inductor, a switching element, and a reverse-flow preventing element. Each converter is controlled at phases different from each other and such that a sum of switching frequencies F is out of a first non-selected frequency band. The inductor has an inductance that decreases as the switching frequency F increases. The switching element is controlled using the switching frequency F higher than a second non-selected frequency band of which upper and lower limit frequencies are 1/N of upper and lower limit frequencies of the first non-selected frequency band, and has a total gate charge such that a total loss is smaller than that in a case where the switching frequency F is set to be lower than the second non-selected frequency band.
-
-
-
-
-
-
-
-
-
Search Results
103
records
(took 0.03 seconds)
