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公开(公告)号：US12088085B2
公开(公告)日：2024-09-10
申请号：US18157737
申请日：2023-01-20
Inventor： Manoj Kumar , Ravinder Kumar , Nicolas Demange
CPC classification number: H02H3/20 , H02H1/0007
Abstract: An integrated circuit includes an overvoltage protection circuit. The overvoltage protection circuit detects overvoltage events at a pad of the integrated circuit. The overvoltage protection circuit generates a max voltage signal that is the greater of the voltage at the pad and a supply voltage of the integrated circuit. The overvoltage protection circuit disables a PMOS transistor coupled to the pad by supplying the max voltage signal to the gate of the PMOS transistor when an overvoltage event is present at the pad.
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公开(公告)号：US20240291264A1
公开(公告)日：2024-08-29
申请号：US18584369
申请日：2024-02-22
Applicant: Joulwatt Technology Co., Ltd.
Inventor： Pitleong WONG
Abstract: The present application discloses an electronic fuse circuit and a circuit system using the same. During startup operation, the circuit system using the electronic fuse circuit of the present application detects an amplitude of the load voltage by a second protection circuit, when the voltage exceeds a set second threshold signal, the electronic fuse circuit is controlled to be turned off; during normal operation, a current of a path where the electronic switch is located is monitored by a first protection circuit to prevent a current of the circuit system from overcurrent. According to the technical solution of the present disclosure, the load can be prevented from damage caused by a failure such as short circuit and electricity leakage of the switch power supply, and the system can be protected from overcurrent.
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13.发明授权公开(公告)号：US12034292B2
公开(公告)日：2024-07-09
申请号：US18132062
申请日：2023-04-07
Applicant: Eaton Intelligent Power Limited
Inventor： Huaqiang Li , Seth O'Brien , Thomas M. Ruchti
CPC classification number: H02H7/0833 , H02H3/202 , H02H7/1216 , H02H7/125 , H02M1/08 , H02M1/32 , H02M5/4585 , H02M7/2173
Abstract: A power conversion circuit having a solid-state circuit breaker integrated therein is disclosed. With a disconnect switch between a utility source and the power conversion apparatus described for meeting UL489, the power conversion circuit includes an input connectable to an AC source, a rectifier circuit connected to the input to convert an AC power input to a DC power, and a DC link coupled to the rectifier circuit to receive the DC power therefrom. The rectifier circuit comprises a plurality of phase legs each including thereon an upper switching unit and a lower switching unit, wherein at least one of the upper and lower switching units on each phase leg comprises a bi-directional switching unit that selectively controls current and withstands voltage in both directions, so as to provide a circuit breaking capability that selectively interrupts current flow through the rectifier circuit, while maintaining original power conversion functionalities.
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公开(公告)号：US12027970B2
公开(公告)日：2024-07-02
申请号：US16243817
申请日：2019-01-09
Applicant: Solaredge Technologies Ltd.
Inventor： Meir Adest , Guy Sella , Lior Handelsman , Yoav Galin , Amir Fishelov , Meir Gazit , Yaron Binder
IPC: H04B3/00 , G01S3/786 , H01L31/02 , H02H3/20 , H02J1/10 , H02J3/38 , H02J3/46 , H02M1/32 , H02M3/158 , H02M7/493 , H04B3/54 , H02J7/35 , H02M1/00
CPC classification number: H02M1/32 , G01S3/7861 , H01L31/02021 , H02H3/202 , H02J1/102 , H02J3/381 , H02J3/46 , H02M3/1582 , H02M7/493 , H04B3/548 , H02J7/35 , H02J2300/24 , H02J2300/26 , H02J2300/28 , H02M1/0077 , H04B2203/5416 , Y02E10/56 , Y02E10/76
Abstract: A distributed power system including multiple DC power sources and multiple power modules. The power modules include inputs coupled respectively to the DC power sources and outputs coupled in series to form a serial string. An inverter is coupled to the serial string. The inverter converts power input from the serial string to output power. A signaling mechanism between the inverter and the power module is adapted for controlling operation of the power modules.
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公开(公告)号：US11979095B2
公开(公告)日：2024-05-07
申请号：US17638403
申请日：2020-07-31
Applicant: Hitachi Astemo, Ltd.
Inventor： Norio Murayama , Takeshi Yoshida , Takahiro Nishida , Itsuro Nomura
Abstract: An object of the present invention is to provide a power conversion device capable of specifying a failure location of an inverter in detail when an attempt of active discharge fails. There are provided an arithmetic operation circuit 102 that outputs a discharge instruction to control a discharge operation based on a voltage between both ends of a discharge circuit, and an output circuit 203 that outputs a drive signal based on the control signal. The arithmetic operation circuit 102 monitors an amount of the decreased voltage between both the ends of the discharge circuit, an LV read back signal being an output of the arithmetic operation circuit 102, and an HV read back signal being an output of the output circuit 203, and specifies a failure location.
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Patent Agency Ranking
公开(公告)号：US11949224B2
公开(公告)日：2024-04-02
申请号：US17704089
申请日：2022-03-25
Applicant: Timothy T. Hsia , Victor K. Lee
Inventor： Timothy T. Hsia , Victor K. Lee
CPC classification number: H02H3/20 , H02H1/0007
Abstract: One example includes a power supply system. The system includes a voltage-limit power regulator to generate an output voltage and an instantaneous overvoltage sensor configured to detect an overvoltage condition associated with the output voltage. The system further includes an overvoltage latch-off timer system configured to initiate a latch-off timer in response to detecting the overvoltage condition. The latch-off timer can be uninterrupted by an amplitude of the output voltage. The overvoltage latch-off timer system can further be configured to detect a persistent overvoltage fault in response to detecting the overvoltage condition after expiration of the latch-off timer. The overvoltage latch-off timer system can be configured to generate a fault signal to disable the voltage-limit power regulator in response to detecting the persistent overvoltage fault.
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公开(公告)号：US11929606B2
公开(公告)日：2024-03-12
申请号：US17894165
申请日：2022-08-24
Inventor： Guozhi Zeng
CPC classification number: H02H3/20 , F02N11/12 , H02H5/04 , H02J7/0029 , H02J7/00308 , H02J7/00309 , H02J7/0047
Abstract: The present disclosure discloses a safety control circuit and an automobile emergency starting clamp provided with the same. The safety control circuit is integrated with an EC5 input module, an ignition clip module, a relay module, a timing control module, an input high-voltage protection module, a voltage-stabilizing power supply module, an input low-voltage protection module, a high-temperature protection module, a low-temperature protection module, an error alarm module, a first timing module, a second timing module and a light display module, and has fast response and high safety. The automobile emergency starting clamp provided with the circuit includes an anode cable clamp, a cathode cable clamp and a control box; and the control box includes a control box upper shell, a control box lower shell, an on/off button and the above-mentioned safety control circuit.
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公开(公告)号：US11894671B2
公开(公告)日：2024-02-06
申请号：US17838282
申请日：2022-06-13
Applicant: NANYA TECHNOLOGY CORPORATION
Inventor： Chang-Ting Wu
CPC classification number: H02H3/20 , H02H1/0007
Abstract: An electrical over stress protection device is provided. A detection circuit detects an input voltage from a pad, provides a first discharge path when the input voltage is higher than a preset voltage, and provides a turn-on voltage to a discharge protection circuit to control the discharge protection circuit to provide at least one second discharge path.
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公开(公告)号：US11888387B2
公开(公告)日：2024-01-30
申请号：US15369881
申请日：2016-12-05
Applicant: Solaredge Technologies, Ltd
Inventor： Meir Adest , Guy Sella , Lior Handelsman , Yoav Galin , Amir Fishelov , Meir Gazit , Yaron Binder
IPC: H02J1/00 , H02M1/32 , H02M3/158 , G01S3/786 , H01L31/02 , H02H3/20 , H02J1/10 , H02J3/46 , H02M7/493 , H04B3/54 , H02J3/38 , H02J7/35 , H02M1/00
CPC classification number: H02M1/32 , G01S3/7861 , H01L31/02021 , H02H3/202 , H02J1/102 , H02J3/381 , H02J3/46 , H02M3/1582 , H02M7/493 , H04B3/548 , H02J7/35 , H02J2300/24 , H02J2300/26 , H02J2300/28 , H02M1/0077 , H04B2203/5416 , Y02E10/56 , Y02E10/76
Abstract: A distributed power system including multiple DC power sources and multiple power modules. The power modules include inputs coupled respectively to the DC power sources and outputs coupled in series to form a serial string. An inverter is coupled to the serial string. The inverter converts power input from the serial string to output power. A signaling mechanism between the inverter and the power module is adapted for controlling operation of the power modules. Also, for a protection method in the distributed power system, when the inverter stops production of the output power, each of the power modules is shut down and thereby the power input to the inverter is ceased.
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公开(公告)号：US11870234B2
公开(公告)日：2024-01-09
申请号：US17467195
申请日：2021-09-04
Applicant: Astronics Advanced Electronic Systems Corp.
Inventor： Fred J. Potter , Patrick Mills , Warren J. Wambsganss
CPC classification number: H02H1/0015 , H02H3/20
Abstract: Series arcing in wiring is a potentially catastrophic situation that has proven to be difficult to detect reliably with existing methods. This invention allows for the quick and accurate detection of series arcing in an electrical circuit. The method works with AC or DC power sources, and at any voltage or current level. This method will also detect high resistance in a circuit, which is another indicator of a potentially hazardous fault condition. The method compares the voltage at each end of a conductor, and will declare a fault when this voltage exceeds the minimum voltage required to sustain arcing.
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