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公开(公告)号：US20240322681A1
公开(公告)日：2024-09-26
申请号：US18244173
申请日：2023-09-08
Inventor： Masatoshi WATANABE , Tsuneyuki HAYASHI , Shuuji TODA
Abstract: According to one embodiment, a semiconductor device includes: a switch circuit including a first switch configured to control an output of a first power supply voltage, and a second switch configured to control an output of a second power supply voltage, the switch circuit being configured to switch the first power supply voltage and the second power supply voltage; and a control circuit configured to receive a first control signal related to an input of the first power supply voltage, and a second control signal related to an input of the second power supply voltage, configured to detect the inputs of the first and second power supply voltages, and configured to control an operation mode of the switch circuit, based on a detection result of the first and second control signals and the first and second power supply voltages.
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公开(公告)号：US12095383B2
公开(公告)日：2024-09-17
申请号：US17904437
申请日：2020-07-21
Applicant: INTELESOL, LLC
Inventor： Mark Telefus
CPC classification number: H02M7/217 , H02M1/0003 , H02M1/08 , H02M1/32
Abstract: An AC to DC conversion system is described. The conversion system consists of an electronic switch and control circuitry employed to provide controlled pulsed power to a storage device that provides power to a load at either a preselected or manually or automatic selectable voltages while ensuring the voltage drop across the switch is minimized to reduce power dissipated through the switch itself, thereby significantly increasing the efficiency and reducing thermal losses. The AC to DC converter in one minimal version consists of a pair of N-MOSFET transistors, a voltage divider, a storage element and a pair of diodes. The design enables high efficiency with minimal components that may be fully integrated onto silicon.
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公开(公告)号：US20240297645A1
公开(公告)日：2024-09-05
申请号：US18177469
申请日：2023-03-02
Applicant: RENESAS ELECTRONICS CORPORATION
Inventor： Ryutaro MINESAWA
CPC classification number: H03K17/56 , B60R16/03 , H02M1/08 , H03K5/1565
Abstract: A semiconductor device includes first and second isolators, a first transmitting circuit that transmits a transmission signal via the first isolator, a first receiving circuit that receives a received signal corresponding to the transmission signal via the first isolator, an output driver that outputs a drive signal for driving a power device based on the received signal, a timer that inputs first and second signals having first and second information associated with the power device, respectively, and outputs a third signal from the first and second information, a second transmitting circuit that transmits the third signal via the second isolator and a second receiving circuit that receives a signal corresponding to the third signal via the second isolator.
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公开(公告)号：US12081129B2
公开(公告)日：2024-09-03
申请号：US17799449
申请日：2020-10-29
Applicant: Rohm Co., Ltd.
Inventor： Yoshinori Sato , Satoru Nate
CPC classification number: H02M3/33507 , H02M1/08
Abstract: A power control device includes a mode setter configured to effect a change from a normal mode to a low-power mode upon detecting a light load in a burst operation, and a minimum on-period setter configured to, in response to a change to the low-power mode, change the minimum on-period of the switching transistor from a first minimum on-period to a second minimum on-period longer than the first minimum on-period.
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15.发明授权公开(公告)号：US12074547B2
公开(公告)日：2024-08-27
申请号：US17435920
申请日：2020-08-24
Applicant: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
Inventor： Yingyi Jiang , Peiyu Dang , Yongying Guo , Yu Liu , Songru Huang
IPC: H02P27/04 , H02M1/08 , H02M7/219 , H02M7/5387 , H02P27/06
CPC classification number: H02P27/06 , H02M1/08 , H02M7/219 , H02M7/53871
Abstract: The present disclosure relates to a driving circuit and method, a frequency converter, a device and a computer readable storage medium. The circuit includes: a rectifier unit including a first input terminal, a second input terminal and an output terminal, wherein the output terminal of the rectifier unit is connected to an input terminal of the inverter unit, and the second input terminal of the rectifier unit is connected to the input terminal of the inverter unit a first switch arranged between the first input terminal of the rectifier unit and an output terminal of the inverter unit, and configured to control the driving circuit to switch between a series mode and a parallel mode by being switched on or off; the inverter unit with the output terminal connected to a load; and a capacitor connected in parallel between the rectifier unit and the inverter unit.
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Patent Agency Ranking
公开(公告)号：US12074516B2
公开(公告)日：2024-08-27
申请号：US17758404
申请日：2020-12-17
Inventor： Hiroki Akashi , Takuya Ishii , Yoshihito Kawakami , Kazuhiro Yahata , Takeshi Azuma , Yoshihisa Minami
Abstract: A switch circuit is configured of a first semiconductor element and a second semiconductor element connected in series, and receives a DC voltage of 100 V or more. The drive circuit causes the first semiconductor element or the second semiconductor element to perform a switching operation. The isolated power supply circuit converts a predetermined power supply voltage into an isolated first power supply voltage, and outputs the first power supply voltage to the drive circuit. The isolation signal converter converts a first signal of 6 MHz or more into an isolated first drive signal, and outputs the first drive signal to the drive circuit. The single substrate mounts the isolated power supply circuit and the isolation signal converter. Both the first semiconductor element and the second semiconductor element are wide bandgap semiconductor elements.
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公开(公告)号：US20240283455A1
公开(公告)日：2024-08-22
申请号：US18442800
申请日：2024-02-15
Applicant: ROHM CO., LTD.
Inventor： Isao Takobe
IPC: H03K19/0185 , B60R16/03 , H02M1/08 , H02M3/158
CPC classification number: H03K19/018507 , B60R16/03 , H02M1/08 , H02M3/158
Abstract: A level shifter includes first to third signal generators, wherein the first and second signal generators use, as an upper-side power supply voltage, a first internal voltage based on a first voltage when the first voltage is higher than a second voltage, and a second internal voltage based on the second voltage when the second voltage is higher than the first voltage, wherein the third signal generator uses the second voltage as an upper-side power supply voltage, wherein the first signal generator uses, as a lower-side power supply voltage, a third internal voltage based on a third voltage when the third voltage is higher than a fourth voltage, and a fourth internal voltage based on the fourth voltage when the fourth voltage is higher than the third voltage, and wherein the third voltage is lower than the first voltage and the fourth voltage is lower than the second voltage.
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公开(公告)号：US20240282714A1
公开(公告)日：2024-08-22
申请号：US18600493
申请日：2024-03-08
Inventor： Leonard Shtargot , Zafer Kutlu , John Underhill Gardner
IPC: H01L23/552 , H01L21/3205 , H01L21/56 , H01L21/78 , H01L23/00 , H01L23/31 , H01L23/367 , H01L23/538 , H01L25/16 , H01L27/02 , H01L27/06 , H02M1/08
CPC classification number: H01L23/552 , H01L21/32051 , H01L21/561 , H01L21/78 , H01L23/3121 , H01L23/367 , H01L23/5383 , H01L24/16 , H01L24/81 , H01L24/97 , H01L25/16 , H01L27/0207 , H01L27/0617 , H01L2224/16227 , H01L2924/01022 , H01L2924/1431 , H01L2924/19041 , H01L2924/19105 , H01L2924/3025 , H02M1/08
Abstract: Techniques are provided for containing magnetic fields generated by an integrated switching package and for reducing electromagnetic interference generated from an integrated switching package.
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公开(公告)号：US12068687B2
公开(公告)日：2024-08-20
申请号：US17502272
申请日：2021-10-15
Applicant: Advanced Micro Devices, Inc.
CPC classification number: H02M3/158 , H02M1/0029 , H02M1/08
Abstract: A method for operating a system including a voltage regulating power supply includes sensing a local voltage on a first node of the system and a remote voltage on a second node of the system. The first node and the second node are in a conductive path coupled to a load of the system. The first node is closer to a power stage of the voltage regulating power supply than the second node. The second node is closer to the load than the first node. The method includes detecting a load release event based on the local voltage, the remote voltage, and at least one predetermined threshold value.
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20.发明公开公开(公告)号：US20240275265A1
公开(公告)日：2024-08-15
申请号：US18563920
申请日：2021-06-01
Applicant: Mitsubishi Electric Corporation
Inventor： Kenichi MOROKUMA , Yoshiko TAMADA
CPC classification number: H02M1/08 , H02M1/0009 , H02M1/325
Abstract: A power semiconductor element drive adjustment circuit is provided with a difference unit to calculate a difference value between a normalized value of the differential value of the collector-emitter voltage and a normalized value of the differential value of the collector current, a comparison unit to compare the difference value with a comparison reference value, a drive control unit to generate, on the basis of a comparison result of the comparison unit, a drive adjustment signal that adjusts a drive signal for the power semiconductor element, and a drive variable circuit to output, on the basis of the drive adjustment signal, the drive signal for the power semiconductor element.
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