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WO/2021/125269A1 |
For example, an overcurrent protection circuit 71 has a hiccup control unit 71b for hiccup-driving a switching element 10 so as to repeat predetermined on-time ton and off-time toff when the output current Io flowing through the switchin...
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WO/2021/122812A1 |
The invention relates to a plug contact apparatus (100) for extinguishing an electric arc using an extension, comprising a main contact, HA (112), and an auxiliary contact, Hl (114). HA (112) and Hl (114) each comprise a first contact ha...
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WO/2021/119938A1 |
A hybrid circuit breaker (100), a hybrid circuit breaker system, and a circuit breaker method. The hybrid circuit breaker (100) comprises: a first mechanical contact (MC1); a semiconductor circuit breaker (MSS), which is connected to the...
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WO/2021/117669A1 |
A drive device for an electric motor according to the present invention has: a first relay that turns a power supply line from a power source to the electric motor on and off; a resistor provided to a bypass line that bypasses the first ...
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WO/2021/117565A1 |
A protection circuit 60 is provided with: switches 61, 62 positioned on a power line PL of an electricity storage element 22 and a load 12; first protection elements 63, 64, 65 connected in parallel with the switches 61, 62 and absorbing...
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WO/2021/115092A1 |
A lightning protection grounding grid, comprising a first protection grounding grid unit and a second protection grounding grid unit. The first protection grounding grid unit comprises a first busbar (1), which is respectively connected ...
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WO/2021/112475A1 |
A device for measuring a current of a three-phase inverter according to an embodiment of the present invention comprises: a current detection element connected to the lower end of one of three lower switches configuring an inverter; a cu...
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WO/2021/109149A1 |
Provided is an electrostatic discharge (ESD) protection circuit. The circuit is used to reduce the probability of an internal circuit being damaged by static electricity in a CDM model. The ESD protection circuit comprises two stages of ...
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WO/2021/102634A1 |
A source circuit, a power supply and an electric system. The source circuit includes at least one voltage source supplied from a mains circuit and used to provide at least one voltage for at least one device and at least one switch respe...
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WO/2021/101800A1 |
A circuit protection device including a positive temperature coefficient (PTC) device and a backup fuse electrically connected in series with one another, the backup fuse comprising a quantity of solder disposed on a dielectric chip and ...
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WO/2021/098311A1 |
Disclosed are a dynamic braking circuit for an electric motor, and a dynamic braking method for an electric motor. After being rectified by a rectifier bridge module, an alternating current is converted, after being subjected to the filt...
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WO/2021/093457A1 |
Disclosed are an anti-electric-shock monitoring and protection method and apparatus for a low-voltage user end, wherein same can monitor a power supply line that passes through an isolation transformer (1) and can protect a human body wh...
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WO/2021/083469A1 |
A wind turbine (1) comprising a generator (2), an auxiliary system (6) comprising one or more electrical components (7), and an auxiliary transformer (5) having an internal impedance is disclosed. The auxiliary transformer (5) is connect...
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WO/2021/078943A1 |
The present invention relates to a method and device for controlling operating of a switching device in a power system comprising a power source connected with a load in a three- phase configuration. There is coupling between at least tw...
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WO/2021/073980A1 |
A device for driving a safety-relevant electronic system, in particular of a vehicle, comprises a power supply unit (10) having at least one voltage regulator (11, 12), wherein the power supply unit (10), during operation, is supplied wi...
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WO/2021/073419A1 |
Embodiments of the present disclosure provide a surge protection method and apparatus, a protection circuit, and a storage medium. The protection circuit comprises: a first fusing unit, a protection unit, a unidirectional conduction unit...
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WO/2021/071564A1 |
A system (1000) and method for detecting and isolating an electromagnetic pulse ("EMP") along first phase (601), second phase (602), and third phase (603) electrical lines electrically connected to a monitored infrastructure so as to pro...
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WO/2021/068363A1 |
A high-voltage protection system for an internal combustion locomotive. The system comprises a control unit, a bus voltage detection circuit, a triple discharge loop, and a cabinet door state detection circuit, wherein the triple dischar...
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WO/2021/067176A1 |
A method for dynamic limiting of battery voltage includes determining that a voltage delivered by a battery exceeds a predefined maximum safe voltage for operation of a portable electronic device in a hazardous environment and, in respon...
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WO/2021/063491A1 |
The invention relates to an electric high-voltage device (10) comprising a fluid-tight housing (16), a high-voltage component (11, 12) which is arranged in the housing, and an insulating liquid (17) in the housing in order to electricall...
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WO/2021/061508A1 |
Described is a system that includes a solid-state switch in series with a battery and a controller. The system also includes a capacitor coupled between a source and a gate of the solid-state switch and a resistor coupled between the gat...
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WO/2021/057163A1 |
A surge protection device having high breaking capacity, comprising: a housing (1) having at least two lead-out electrodes (10a, 10b); and a voltage-limiting apparatus (2) and a thermal trip mechanism (3) disposed in the housing (1). The...
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WO/2021/052205A1 |
A surge absorption circuit for a single-phase air conditioning system, comprising: an L line and an N line, wherein one end (ACL, ACN) of each of the two is connected to a power source, and the other end (ACL', ACN') of each is connected...
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WO/2021/055931A1 |
A protective component for a downhole tool is described. The protective component incorporates a wireless networking circuit for communicating data retrieved by the downhole tool to a surface data repository. The protective component can...
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WO/2021/048721A1 |
According to one or more embodiments, a current limiting device is provided. The current limiting device includes a transformer including: a primary winding configured to accept an input current, a core electromagnetically coupled to the...
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WO/2021/045351A1 |
The present invention provides an arc eliminator, comprising: a plurality of housings formed of an insulation material; fixed electrodes disposed on the upper sides of the insides of the housings and connected to each of high-voltage thr...
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WO/2021/045670A1 |
An electronic circuit breaker (100) for a vehicle, comprising: an input (101) configured to be connected to a DC power supply; an output (102) configured to be connected to a load; said input connected to said output via a semiconductor ...
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WO/2021/031766A1 |
A voltage limiting circuit, comprising: a voltage-control-type switch (6), a resistor (7), a positive temperature coefficient thermistor (5) and a varistor (4), wherein the voltage-control-type switch (6) and the resistor (7) are connect...
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WO/2021/029795A1 |
Electronic circuit (1) which acts as a zener diode below a zener voltage, and as a constant current source above the zener voltage comprising an input terminal (2), an output terminal (3), a first resistor (6), a second resistor (7), a t...
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WO/2021/028552A1 |
A method for using an electronic fuse (e-fuse) as a damping element and a system including at least one e-fuse are disclosed.
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WO/2021/023472A1 |
The invention relates to the protection of an AC device, in particular an inductive voltage converter (11), electrically connected to an AC line (5), from damage caused by direct currents flowing in the AC line (5). In this case, at leas...
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WO/2021/026351A1 |
An inrush current protection circuit for a solid state lighting fixture is provided. The inrush current protection circuit includes one or more current limiting devices and one or more switching devices coupled in parallel with the one o...
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WO/2021/024134A1 |
A system and a method for controlling a power MOSFET for limiting electromagnetic interference from a load is provided. The system and method include a pulse-width-modulated (PWM) control voltage to operate the power MOSFET in accordance...
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WO/2021/018640A1 |
The invention relates to an electrical system (150) for a motor vehicle (100), comprising a current distributor (152); a plurality of first lines (154) which are designed to connect a corresponding plurality of electric components (153) ...
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WO/2021/018040A1 |
The present invention provides a power clamp ESD protection circuit and an integrated circuit structure. The circuit comprises: an ESD detection module, an ESD trigger module, and an ESD discharge module. The ESD detection module is used...
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WO/2021/012938A1 |
A transient voltage suppressor (TVS) provided with temperature protection, comprising a housing (1), a cover plate (7), a TVS chip (2), a first lead-out electrode (5), and a second lead-out electrode (3), and further comprising a thermal...
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WO/2021/013609A1 |
The invention concerns a system (6) for protecting an electricity distribution microgrid, the microgrid comprising an electricity generating device (1), a transformer (4) configured to raise an electrical voltage output from the electric...
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WO/2021/006894A1 |
A power system a method for enhanced voltage protection. The system may comprise a surface high voltage power supply, a voltage controller connected to the surface high voltage power supply that sends commands to the surface high voltage...
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WO/2021/004244A1 |
An automatic tripping and anti-falling arrester and a lightning protection and fuse integrated combination device, wherein the arrester includes an insulator body (1), an arrester body (3) and an anti-falling member; the insulator body (...
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WO/2021/000611A1 |
A circuit comprises a coaxial cable interface (J), a data module (114), a power module(111), a power signal transmission branch, and a data signal transmission branch. The data module (114) may receive or output a data signal. The power ...
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WO/2021/001740A1 |
The invention concerns a method for protecting an input or input/output terminal (P) of an integrated circuit (IC1) against electrostatic discharges, the method comprising steps consisting in: generating a control signal (CS) resulting f...
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WO/2021/001359A1 |
A surge monitoring circuit (104) for detecting transient spikes in an input voltage (Vi) includes a voltage divider circuit (202) that generates a divider output voltage (Vo) from the input voltage (Vi), a reference voltage generator cir...
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WO/2020/043955A9 |
The application relates to a transmission cable joint (100) for a medium voltage underground cable system. The cable joint comprises at least a casing (104) and connection ter- minals (122a, 122b, 122c) for coupling wires (103a, 103b, 03...
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WO/2020/260301A1 |
Autonomous security device and electrical system comprising a device of said kind. Security device comprising: a. a main input terminal (A) intended to be connected to a first DC voltage source (BAT), b. a main output terminal (B) intend...
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WO/2020/259547A1 |
Provided are an anti-impact structure, an anti-impact assembly and an electric energy meter, relating to the technical field of electric energy meters. The anti-impact structure is applied to an electric energy meter, the electric energy...
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WO/2020/254265A1 |
A protective device (16) for an electrical grid (10) has a variable choke (22) which comprises a conductor (34) having at least one turn (36) and comprises a core (32) which is arranged at least partly within the at least one turn (36). ...
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WO/2020/249379A1 |
The invention relates to a monitoring arrangement for electrical equipment, having a first sensor for sensing a surface creeping current on a creeping path-lengthening electrically insulating housing of the equipment, and to a monitoring...
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WO/2020/249840A1 |
The invention relates to an electromagnetic variable-radiofrequency compensator device for the protection of the blades of wind turbine towers or other movable or static structures, which comprises: two conductive connection adapters (1,...
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WO/2020/244015A1 |
A direct current limiter topology suitable for a flexible direct current transmission system, comprising: a current limiting reactor l1, a main loop, and a current limiting loop. The main loop and the current limiting loop are connected ...
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WO/2020/247900A1 |
A semiconductor device (100) contains a Zener-triggered transistor (104) having a Zener diode (113) vertically integrated in a first current node (106) of the Zener-triggered transistor (104). The Zener diode (113) includes an n-type cat...
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