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WO/2021/189892A1 |
A power supply control circuit, method and apparatus, a storage medium, an ion generator and a purifier. The power supply control circuit comprises: a high-voltage generation circuit (10), a current sampling circuit (20) and a high-volta...
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WO/2021/189732A1 |
The invention relates to an arc-extinguishing device, and more particularly, relates to an arc-extinguishing device applicable to extinguishing multiple electrical contact arcs. The arc-extinguishing device comprises first switches (S1)....
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WO/2021/192581A1 |
This battery voltage equalization device 1 comprises: a transformer T including a primary winding T1 to which the output voltage of a battery pack BP is input and a plurality of secondary windings T2 respectively corresponding to batteri...
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WO/2021/191088A1 |
A motor-protective circuit breaker (10) comprising a circuit breaker unit (100), a trip unit (102), measurement means (106) switched between the trip unit (102) and motor contacts (T1, T2, T3) provided for performing one or more measurem...
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WO/2021/192647A1 |
Provided is a battery pack 1 that is charged by being connected to a charger 2 and is discharged by being connected to a load 3. The battery pack 1 is provided with: a charging/discharging terminal 1a comprising a positive electrode term...
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WO/2021/191490A1 |
The invention relates to a method for determining the distance to a fault location of a power line to be protected in an electric power system, the method comprising: configuring the power line to be protected into a plurality of segment...
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WO/2021/192898A1 |
This current control device is provided with a constant current circuit (30) and a current adjustment device (31). The current adjustment device (31) applies a voltage to the constant current circuit (30). The constant current circuit (3...
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WO/2021/194063A1 |
A control device for an MMC is disclosed. The control device for an MMC comprising a plurality of converter arms that include a plurality of sub-modules connected in series and that are connected to a DC link comprises: an arm controller...
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WO/2021/195166A1 |
A drive circuit is disclosed. The drive circuit includes a high-side switch coupled between a power supply and an inductive load, and a low-side switch coupled between the load and ground. A current sense device is connected in series wi...
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WO/2021/185630A1 |
The invention relates to a method for operating a DC voltage converter (30, 32) on board a submarine, wherein the DC voltage converter (30, 32) is arranged between at least one first lithium battery (20) and a first on-board electrical s...
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WO/2021/185518A1 |
The invention relates to a protective device (100) for an electronic component (30) connected to an interface (200), comprising a compensation element (31) connected in series with the electronic component (30), wherein the compensation ...
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WO/2021/186251A1 |
The disclosure generally relates to a failure indicator for providing an indicator that a failure has occurred on a capacitor unit of a capacitor bank. In some embodiments, the failure indicator may include a magnetic element, and the fa...
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WO/2021/185288A1 |
A motor control system and a vehicle. The motor control system (1) comprises a main control unit (10), a power supply unit (20), and a drive unit (30). The main control unit (10) acquires sampling data of a motor and a power supply signa...
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WO/2021/185503A1 |
The invention relates to a protective device (100) for an electronic component (30) connected to an electrical interface (200), comprising: a detection device (10, 20) for detecting electrical voltage and/or electrical current at the ele...
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WO/2021/181404A1 |
A relay assembly (104) connecting a power source (101) to an electronic component (102) in a high voltage system (100). The relay assembly (104) comprises a first relay unit (105), a second relay unit (106) positioned perpendicular to th...
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WO/2021/180580A1 |
The invention relates to an isolator comprising a first and a second input connector (11, 12), a first and a second output connector (13, 14), a transistor (16) between the second input connector (12) and the second output connector (14)...
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WO/2021/182263A1 |
An arc detection device (10) is provided with: a voltage detection unit (20) that is connected between a first wire (110) connecting a positive electrode of a DC/DC converter (61) and a plurality of DC/DC converters (51, 52, and 53) and ...
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WO/2021/180923A1 |
The present invention relates to a method for monitoring the state of health of at least one contactor (1, 2) in a battery pack (3), wherein the battery pack (3) has at least one battery cell (4) for the electrochemical storage of electr...
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WO/2021/179858A1 |
A protection apparatus (100) and method for an insulated gate bipolar transistor. The protection apparatus (100) comprises: a collection circuit (101), which collects a driving signal of an IGBT, performs delay processing insofar as the ...
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WO/2021/182308A1 |
This adapter 20 is provided with: input terminals 51–53 into which direct-current input power is input from an external power source 10; output terminals 16a, 16b, which are output terminals that supply the direct-current power input f...
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WO/2021/179451A1 |
The present invention relates to the technical field of coordinated charging control of electric vehicle charging points, and more particularly, relates to a protection method employing an energy storage apparatus to suppress overload of...
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WO/2021/182259A1 |
An arc detection device (10a) includes: a low impedance circuit (11) connected between a node (N1) on wiring (110) and a node (N2) on wiring (120), the wiring (110) connecting a positive electrode of a DC/DC converter (61) to a plurality...
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WO/2021/182337A1 |
A battery pack including a pair of output terminals, a control unit, and a plurality of battery units, wherein each of the plurality of battery units includes a plurality of battery blocks connected in series, a positive electrode termin...
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WO/2021/182260A1 |
An arc detection device (10a) is provided with: a current detection unit (20a) that has a magnetic core (21) penetrated by a first path (51a) and a second path (52a) each connecting a DC power supply (40) and equipment (50) and that dete...
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WO/2021/174737A1 |
The present application provides a motor control method, a motor control apparatus, a motor system, and a storage medium. The motor control method comprises: obtaining a busbar voltage of a motor; and determining that the busbar voltage ...
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WO/2021/174631A1 |
Disclosed are a power transmission line distance protection current transformer saturation identification method and system. According to the present invention, a distance protection locking criterion and a distance protection opening cr...
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WO/2021/177655A1 |
The present invention provides a switching mode power supply comprising: a primary-side circuit unit including an input circuit for providing an input voltage and a semiconductor switch for applying an electric current to or blocking the...
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WO/2020/204685A9 |
The invention relates to electrical engineering and is designed for monitoring the working parameters of a power transformer when in service and for controlling the systems of said transformer. The aim of the invention is to increase tra...
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WO/2021/172702A1 |
A fault detection and system protection method of a stand-alone microgrid on the basis of a power conversion system (PCS) serving as a main power source in the microgrid, according to the present invention, allows the PCS to be controlle...
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WO/2021/170047A1 |
An electric motor control system and a vehicle. The electric motor control system (10) comprises: a whole vehicle controller (110) for acquiring whole vehicle state data and outputting an instruction to cut off output torque of an electr...
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WO/2021/168906A1 |
Provided is an overcurrent fault protection circuit. The overcurrent fault protection circuit measures electric energy parameters in a bus circuit, and can control, when it is determined, according to the electric energy parameters, that...
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WO/2021/164636A1 |
An undervoltage protection method (1000) for use in an electric motor control unit (ECU), comprising: receiving an enable signal of an active short-circuited circuit, wherein the enable signal indicates whether to control a gate driver t...
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WO/2021/167599A1 |
A shoot-through protection circuit includes a current sensor providing a sensor signal connected to a comparator (230) input via at least a burden resistor (120). A switch protection circuit (250) including a protection input connected t...
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WO/2021/165780A1 |
Provided are a battery control circuit, a battery protection circuit, a power storage device, a semiconductor device, a vehicle, an electronic apparatus and the like that have a novel configuration, a configuration with low electric powe...
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WO/2021/163649A1 |
A power conversion device includes: a semiconductor substrate; a plurality of controllers formed on the semiconductor substrate; two or more converter phases formed on the semiconductor substrate; two or more programmable components form...
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WO/2021/160285A1 |
The invention ist related to a method of protecting relays or electronic switches from overheating or damage by creeping short circuit currents, whereby the following steps are carried out in a loop - measurement of the circuit current a...
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WO/2021/163525A1 |
A surge arrester device comprising a first housing portion including a first end and a second end, the first end including a first opening and the second end including a second opening. The device includes a first axis parallel to the fi...
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WO/2021/162740A1 |
A battery system includes a power bus and a set of battery packs. A battery pack is one or more batteries, a sensor board, and a power board. The power bus is used to electrically connect the set of battery packs. The sensor board receiv...
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WO/2021/157222A1 |
One problem to be addressed has been the inability to cut off electric current because, depending on the impedance in a path, an electric current interruption element would not be fused even when a voltage breakdown element is brought in...
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WO/2021/158145A1 |
A surge arrester is presented for the lightning protection of elements of electrical equipment or of a power transmission line, said surge arrester comprising a discharge device (arc quenching device), a high-voltage electrode, a low-vol...
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WO/2021/158539A1 |
A spark gap circuit includes a circuit board. The spark gap circuit also includes an input configured to connect to the circuit board and to receive signals. The spark gap circuit also includes a spark gap configured to connect to the ci...
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WO/2021/156936A1 |
In a multi-terminal DC power transmission system (20), a common control device (120) is connected to a plurality of individual protection devices (101-106) via a first communication network (121). When detecting a change of current or vo...
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WO/2021/157857A1 |
An aerosol generating device and a method of controlling thereof are provided. The aerosol generating device may include a heater configured to heat an aerosol generating material, a battery configured to supply power to the heater, a mi...
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WO/2021/151625A1 |
A circuit interrupter (10) including a current sensor (206) having a normal sensor output and an over current detection output, a solid state switch module (202) structured to have a closed state to allow current to flow through the circ...
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WO/2021/151469A1 |
The invention relates to a method for operating a modular multilevel converter (10) having a plurality of sub-modules (1, 2, 3, 4, 5, 6), each of which has at least two electronic switching elements (12), an electric energy store (14), t...
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WO/2021/151204A1 |
A switching circuit of a motor drive includes a high-side switch configured to selectively conduct current between a DC positive conductor and an output conductor, and a low-side switch configured to selectively conduct current between t...
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WO/2021/153976A1 |
A battery pack simulation apparatus, according to an embodiment of the present invention, may comprise: an input unit that receives a voltage value, a current value, a temperature, and an initial impedance value; an output value generati...
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WO/2021/151667A1 |
The invention relates to a method for controlling a servomotor (M, M1-M6) by means of a converter (1), comprising the steps of: monitoring a circuit of the constant-voltage DC link (4) for a flow of electric current, which circuit is con...
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WO/2021/150312A1 |
A ballistic resistant case for a secondary battery having a rectangular metal case (160) with a panel (160p) connected to the bottom wall and the side walls to divide the internal space of the case into cell pack receiving bays (160b). A...
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WO/2021/147914A1 |
A low-voltage protection method and system for vehicle-mounted devices. The low-voltage protection method comprises: acquiring a target protection voltage of a vehicle storage battery at the current time, the vehicle storage battery supp...
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