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WO/2022/048285A1 |
A high-reliability multiphase power supply system and method. A second processing unit configures a first field-effect transistor, the drain of the first field-effect transistor is connected to a power supply, the source of the first fie...
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WO/2022/049188A1 |
In the field of high voltage direct current (HVDC) power transmission schemes, there is a need for improved detection of ground faults. A bipole power transmission scheme (12; 112) typically includes a first converter station (14) that i...
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WO/2022/044123A1 |
According to the present invention, a gate current detector (8) detects a gate current flowing between a driver (80) and a control electrode of a power semiconductor element (1). A gate charge amount calculator (9) calculates a gate char...
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WO/2022/041589A1 |
Disclosed in the present invention is a full-bridge-type LLC resonant converter, relating to the technical field of power electronics. The converter comprises a full-bridge rectifier circuit, a resonant circuit, a detection circuit and a...
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WO/2022/043013A1 |
The invention relates to a method for monitoring a temperature of a coil of an electric machine (2) that is powered by a converter (1), wherein a heating power applied to the coil is ascertained, and the heating power is evaluated using ...
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WO/2022/041662A1 |
The present invention relates to a BMS control method and system, an electronic device, and a storage medium. Said method is used for safety control of a charge and discharge circuit and an external circuit, and comprises the following s...
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WO/2022/044278A1 |
Provided is a digital protective relay (1) that inputs an alternating current flowing through a transformer (3) and that performs a cutoff operation of a circuit breaker (2) connected to the transformer (3) when an overcurrent is detecte...
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WO/2022/044713A1 |
Provided are a motor device, a gear motor, a detection method, and a computer product capable of detecting a load fluctuation and performing highly accurate preventive maintenance. The motor device comprises: a motor; a power detection c...
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WO/2022/037971A1 |
The invention relates to a switchgear (1) for medium and/or high voltages as well as to a method for data exchange in the switchgear, the switchgear comprising at least two switching units (2) and at least one data acquisition unit (3). ...
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WO/2022/036644A1 |
Disclosed by the present application is an ignition overcurrent protection device, which comprises an overcurrent protection switch, a current detection circuit, and a controller. The overcurrent protection switch is electrically connect...
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WO/2022/037482A1 |
Disclosed in the present invention is a load driving circuit having a full-diagnosis function and built by using a discrete element, comprising: a single chip microcomputer MCU used for outputting a switch control signal to a load positi...
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WO/2022/033142A1 |
The present disclosure provides an air-conditioning system and a control method therefor, and a control selector, and relates to the field of air-conditioning systems. The air-conditioning system comprises a DC bus; and an AC power grid,...
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WO/2022/031408A1 |
A load center (105) comprises a common instantaneous tripping unit (107) that works on a principle of solid state switching. The load center further comprises a plurality of branches (110(1) - 110(8)) of branch circuit breakers each of w...
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WO/2022/027120A1 |
It is disclosed an electric equipment, particularly a transformer, integrated that can also act as a radio base station of a communication network, particularly a 5G communication network. In some embodiments, a component of said equipme...
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WO/2022/030797A1 |
According to various embodiments, disclosed is a system, comprising a power supply case and a wearable device, wherein: the power supply case comprises a first power management module, a first Hall IC, a first battery, and a first proces...
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WO/2022/024695A1 |
Disclosed is a DC circuit switching device with a novel structure that enables a reduction in electromagnetic contactors using a simple structure, and that enables compactness and a low cost to be achieved. A DC circuit switching devic...
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WO/2022/022291A1 |
The present application provides a battery charging circuit, a charging device, and an electronic device. The battery charging circuit comprises a buck rectification circuit, a first switch circuit, a current limiting circuit, an electri...
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WO/2022/023322A1 |
The invention relates to the field of electronic circuit breaker control units, particularly for Residual Current Devices, RCDs. The electronic circuit breaker control unit (100) comprises a first thyristor (162), configured for driving ...
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WO/2022/021404A1 |
Embodiments of the present application provide a power conversion circuit, an electric power transmission system, and photovoltaic equipment. The power conversion circuit comprises: a first bridge arm comprising a first upper bridge arm ...
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WO/2022/022751A1 |
A differential method for current differential protection for a line having mixed use of different types of current transformers, comprising: performing analysis and model construction on a Rogowski coil not having an integral loop, and ...
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WO/2022/016549A1 |
A power input protection device (100), a control method, and a storage medium. The power input protection device (100) comprises: an overvoltage protection circuit (10) used for detecting a received input electrical signal, and capable o...
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WO/2022/018831A1 |
This air conditioner connects to a direct-current power supply connected to a plurality of systems provided in parallel, and is disposed in a first system among the plurality of systems, the air conditioner comprising: a first load which...
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WO/2022/019516A1 |
The present invention relates to a battery apparatus in which a voltage measured by a processor of a battery management system can be corrected, the battery management system, and a method for correcting a measured voltage, wherein the b...
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WO/2022/012603A1 |
Disclosed are a short-circuit protection circuit for a switch power source, and a chip and a system. The short-circuit protection circuit comprises: a collection module, which is used for collecting an input voltage, and generating a fir...
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WO/2022/012876A1 |
The invention relates to a semiconductor chip (1) with functions that are implemented thereon in the circuitry, having a first region (2), in which a first group of security-relevant base functions (3) are implemented in the circuitry, a...
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WO/2022/008017A1 |
A system for a wind turbine, comprising a generator (28) connected to a power converter (30) by an electrical connection (32), a circuit breaker system (69) controlling the connection between the generator and the power converter through...
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WO/2022/008328A1 |
The invention relates to a method for detecting a kickback or a breakthrough of a machine tool (10a; 10b; 10c; 10d), in particular a hand-held machine tool, with an oscillating output movement, in particular a linearly oscillating output...
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WO/2022/009670A1 |
A battery control device (70) carries out charge control on the basis of a current detected by a current sensor (22) when a battery (21) is charged with power supplied from an external charging device (100). The battery control device is...
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WO/2022/007523A1 |
The present application provides a battery protection circuit, comprising a reference and bias circuit connected to a battery voltage sampling point, a voltage protection circuit, a current protection circuit, an enable generation circui...
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WO/2022/009669A1 |
As current sensors for detecting current that flows in a storage battery (21), a power supply system comprises: a first current sensor (22) having a first range as the current detection range; and a second current sensor (23) having a se...
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WO/2022/009639A1 |
Disclosed is an electric power distribution module that has a novel structure and that makes it possible to disconnect a main relay from a battery with excellent reliability and a cost advantage. This electric power distribution module...
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WO/2022/005372A1 |
The invention is related to a method (100) for connecting one or more electric battery units (200; 500) to an electrical system (300). The method comprises: maintaining (102) a system short-circuit which short-circuits the electrical sys...
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WO/2022/000250A1 |
A voltage regulation apparatus and an overcurrent protection method. The voltage regulation apparatus comprises: a current detection control circuit, a power stage circuit, a voltage input terminal, and a voltage output terminal, and the...
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WO/2022/002000A1 |
Provided in the present disclosure is an undervoltage protection circuit, comprising: a secondary-side output module, comprising: an undervoltage determining unit configured to compare the voltage of the secondary-side output module with...
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WO/2021/260624A1 |
Methods and systems provide an indication that a loose connection and/or fault occurred in a breaker box or other electrical connecting device. The method includes calculating normal resistance for circuits within a breaker box when a cu...
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WO/2021/260298A1 |
The invention relates to a method for insulating a first conductor (21) of a first continuous high voltage power drive line connected to at least one link node in question comprising at least three distinct links each associated with at ...
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WO/2021/151909A9 |
There is provided mechanisms for time-synchronized communication of packets between a first substation (120a) and a second substation (120b) interconnected by a communication channel. Samples obtained within the second substation is prov...
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WO/2021/262833A1 |
A method for analyzing operation of a motor includes capturing time-domain energy-related signals associated with at least one motor using at least one intelligent electronic device electrically coupled to the at least one motor. The sig...
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WO/2021/253781A1 |
A fault detection method and apparatus for an oil-gas pump electric motor, which relate to the technical field of oil-gas pump electric motors. The method comprises: obtaining a first predetermined current threshold value (S110); obtaini...
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WO/2021/254530A1 |
Provided are a compressor variable-frequency speed regulation system and a direct-current bus voltage overvoltage protection method, comprising: during the process of motor speed regulation, setting a direct-current bus voltage given val...
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WO/2021/256183A1 |
A control device according to the present invention controls a main switch provided on power wiring, and a charging switch connected in parallel to the main switch together with a limiting resistance. The control device increments a coun...
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WO/2021/254806A1 |
The application describes a detection device (30) for detecting a fault current (Ifault) at a PV generator (8) and/or at DC lines (4.1-4.3, 5.1-5.3) of a PV installation (1) which are assigned to the PV generator (8), wherein the PV gene...
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WO/2021/255371A1 |
This electromechanical installation (100) for an aircraft comprises: - an electrical network (102) comprising electrical subnetworks (104, 106); - a turbogenerator (118) comprising a gas turbine (120), an electricity generator (122) with...
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WO/2021/254986A1 |
A method of monitoring an electrical machine, wherein the method comprises: a) obtaining temperature measurement values of the temperature at a plurality of locations of the electrical machine, b) obtaining estimated temperatures at said...
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WO/2021/251739A1 |
Provided are an arc detection system and method capable of providing reliability and safety. The disclosed arc detection system comprises: a current sensing unit for sensing a current flowing in a line; and an arc detector for detecting ...
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WO/2021/251118A1 |
In a power supply control device (10) that functions as a wire protection device, a fusion element (F1) is disposed on a current pathway for current that flows through a wire (W1). The fusion element (F1) fuses according to the temperatu...
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WO/2021/247005A1 |
A fast-response, light-weight, tunable overcurrent protection system that protects a power converter from a catastrophic failure due to a short circuit. The system includes an input stage connected to a power source; a DC link connected ...
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WO/2021/241684A1 |
A protective circuit (1A) is provided with: a protective element (10A); a plurality of secondary battery cells (20), (20), ...; an external positive electrode terminal (30a) and an external negative electrode terminal (30b); an auxiliary...
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WO/2021/239852A1 |
An electrical safety device (10), wherein the electrical safety device is configured to provide electrical energy from an electrical network via input terminals to at least one electrical consumer device connected to output terminals (44...
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WO/2021/241871A1 |
The present invention relates to a solid insulated switch using a semiconductor, and the solid insulated switch according to one embodiment of the present invention comprises: a main circuit unit which is connected between systems on bot...
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