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Patent Searching and Data


Matches 1 - 50 out of 12,595

Document Document Title
WO/2019/088908A1
A method and a device for detecting faults and for protection of electrical networks, the electrical networks being fed from a transformer station (20) through a first three-phase switching device (25) with circuit breaker (18), a distri...  
WO/2019/086058A1
The invention concerns the method and connection to limit the value of voltage between the neutral point (1) of the network and ground (2), namely in networks with directly earthed neutral point (1) or in networks where the limiting impe...  
WO/2019/086249A1
The invention relates to a circuit arrangement for combined protection of a load from temporary and transient overvoltages with emergency operation of the load in the presence of a temporary overvoltage and with integrated follow current...  
WO/2019/086299A1
An arrangement for a refrigeration and/or freezing appliance, having an electrical or electronic component (1, 2a) and having ascertainment means (2, 4) by which an electrical or thermal load of the component can be ascertained, wherein ...  
WO/2019/088422A1
Disclosed is a vehicle control device comprising: a motor switching unit including a plurality of switching elements respectively connected to a plurality of phases of a motor; a motor control unit for transmitting, to the motor switchin...  
WO/2019/080212A1
Provided are an overcurrent and overvoltage protection circuit, an electromagnetic induction type wireless power supply system and a cooking appliance. The overcurrent and overvoltage protection circuit comprises: a current detecting uni...  
WO/2019/080198A1
An electromagnetic induction type wireless power supply system and a load sudden-change protection circuit therefor. The wireless power supply system comprises a wireless power supply end (100) and a wireless receiver (200). The wireless...  
WO/2019/084257A1
Unique systems, methods, techniques and apparatuses of inrush current detection and reduction are disclosed. One exemplary embodiment is a method for transmitting power to a load comprising operating a solid-state switching device of a p...  
WO/2019/081127A1
The invention relates to a device for determining and/or monitoring at least one process variable of a medium in a container, comprising at least one sensor unit and an electronic unit (1) which comprises a transceiver unit (2) and a tra...  
WO/2018/065120A8
In order to achieve a universal, flexible and highly integrated operating device for driving various lamps, ensuring the protection of the entire operating device and of the appliances connected thereto by means of staggered protective m...  
WO/2019/076258A1
Provided is a rapid switch arc suppression system, wherein same is applicable to high-resistance ground faults. The system comprises: a rapid switch arc suppression apparatus mounted on a substation bus, wherein the rapid switch arc supp...  
WO/2019/078860A1
An over current isolation circuit may, in an example, include a control chip, an input/output embedded controller communicatively coupled to the control chip, and an isolation circuit to isolate the control chip from an over current even...  
WO/2019/078994A1
An Electro-Static Discharge (ESD) protection circuit is disclosed. In some implementations, the ESD protection circuit includes a first ESD diode, a second ESD diode, a passive equalization network and a programmable resistor network. Th...  
WO/2019/077019A1
The invention relates to a trigger circuit for a gas-filled surge arrester (GDT) as a protection device for a varistor (VAR1), wherein the gas-filled surge arrester (GDT) is connected substantially parallel to the varistor (VAR1) and whe...  
WO/2019/077038A1
The invention relates to an overvoltage protection device (1) comprising a housing (4, 5), at least two overvoltage-limiting components (6a, 6b), at least two separating devices, and a remote notification contact, which has a switch (7),...  
WO/2019/072607A1
The invention relates to a method, in particular that can be carried out in a vehicle, for actuating a controllable switching element (10) when a fault, e.g. an overcurrent and/or an overtemperature, occurs. In the method according to th...  
WO/2019/068669A1
A current limiter device (17) is specified, comprising – an electrical coil device (1) having an inductor (3) with two electrical connections (19), by means of which the coil device (1) is connectable to a superordinate circuit, and a ...  
WO/2019/063138A1
The invention relates to an electronic circuit breaker (2) comprising a first semiconductor switch (Q3) which is switched into a current path (3) between a voltage input (4) and a load output (6) and comprising a controller (10) which is...  
WO/2019/056853A1
The present solution relates to a set-top box Tuner protection device and a protection method, the protection device comprising: a permanent protection inductor, a backup protection inductor, a control switch and a voltage detection unit...  
WO/2019/060317A1
Directing an electrostatic discharge received via a conductive pad through a multi-tap inductor having a signal path connecting the conductive pad to a signal processing circuit, the multi-tap inductor having a sequence of taps located a...  
WO/2019/056320A1
Provided are a power supply circuit (10), a power supply device, and a control method. The power supply circuit (10) comprises a primary rectification unit (11), a modulation unit (12), a transformer (13), a secondary rectification and f...  
WO/2019/052256A1
The prevent invention provides a protection circuit of an air conditioning controller and a control method thereof. The protection circuit of the air conditioning controller comprises: a thermistor, a relay, a rectifier module, a voltage...  
WO/2019/051924A1
Disclosed are a static electricity discharge protection circuit (300) and a display device using same. The static electricity discharge protection circuit (300) comprises a first switch (T10), a control end (T13) of the first switch (T10...  
WO/2019/047474A1
An intelligent power module and an air-conditioner controller. An adjustment circuit (14A, 24A, 34A, 44A, 54A, 64A) is additionally provided between each drive circuit (14, 24, 34, 44, 54, 64) in the intelligent power module and a corres...  
WO/2019/045998A1
A T-coil IC includes a first inductor on an Mx layer. The first inductor has n turns, where n is at least 1 7/8 turns. The T-coil IC further includes a second inductor on an Mx-1 layer. The second inductor has n turns. The first inductor...  
WO/2019/037817A1
The invention relates to a drive device for a vehicle flap, comprising an electric motor (2) for driving the vehicle flap, a supply switching circuit (3), comprising a first voltage source (9) for supplying current to the electric motor ...  
WO/2019/036580A1
Embodiments of the disclosure provide a current protection device with a mutual reactor including a first winding and a second winding. The current protection device is a subcomponent of a previously developed fault current limiter. The ...  
WO/2019/027852A1
An active limiting switch includes a comparator (312) and a power switch (212). The comparator is configured to compare a reference voltage (354) with a sense voltage (352). The sense voltage is representative of a proportional approxima...  
WO/2019/019505A1
A circuit structure for suppressing a surge current, comprising a surge suppression determination circuit (1), a switch control circuit (2), and a self-boosting regulation circuit (3). An output end of the surge suppression determination...  
WO/2019/020186A1
The invention relates to a converter arrangement (1) having a converter phase (2), which extends between a first and a second DC voltage pole (3, 4), wherein the converter phase comprises an AC voltage terminal (10) and a first converter...  
WO/2019/019602A1
A direct current switch arc-extinguishing device suitable for high power, comprising: a first direct current switch (J1), a second direct current switch (J2), a first diode (D1), and a second diode (D2); the first direct current switch (...  
WO/2019/020195A1
The invention relates to a current converter unit (303) for high-voltage direct-current (HVDC) transmission, comprising a first converter (315). A first direct-current terminal (327) of the first converter (315) is connected to a first c...  
WO/2019/014946A1
Provided are an electrothermal door lock protection circuit, a control board, a door lock, a door lock protection accessory, and a washing machine. The door lock protection circuit comprises: a switch device, an over-current protection P...  
WO/2019/012327A1
The invention relates to a circuit for separating an input of a converter (12) from a voltage supply (UEIN) in the event of overvoltage. The circuit comprises a protection device (14) with a first terminal for connection to the voltage s...  
WO/2019/011631A1
The invention relates to an assembly for monitoring the state of surge arresters which are connected, by means of releasable and/or non-releasable electrical contacts and connections, in the path to be protected or ahead of a device to b...  
WO/2019/007348A1
A safe processing method for active voltage reduction of a ground fault phase of a non-effective grounding system, for use in safe processing of a ground fault of a neutral point non-effective grounding generator or power distribution ne...  
WO/2019/007769A1
The invention relates to an arrangement for compensating voltage drops in a power supply network, wherein the arrangement comprises at least one first converter system and a second converter system, the intermediate circuits thereof are ...  
WO/2019/004876A1
The invention is used for protecting a transformer against short-circuiting and overloads in the primary winding. The invention makes it possible to achieve a simplification of the design, the absence of a reaction to current changes cau...  
WO/2019/002528A1
The invention relates to a method for electrically connecting a transformer (316) to an electrical network (320) having a network voltage via a power switching device (322), wherein the transformer has a primary side (324) and a secondar...  
WO/2018/236634A1
An electrical circuit and a method for regulating current and providing a circuit breaker to the electrical circuit. The circuit includes a bidirectional cell including a set of forward switches for power flow during a forward mode of op...  
WO/2018/236570A1
A transient signal protection circuit includes an input node coupled to a signal line configured to carry an output signal from a first circuit to a second circuit, wherein the signal line is subject to experiencing an unwanted reverse s...  
WO/2018/231899A1
Electrical cables with integral surge protection are disclosed. An example electrical cable surge protector (100) includes an electrically insulated cable; first and second plugs (104, 106); and a surge protection circuit (102) electrica...  
WO/2018/227175A1
A preheating power supply (208) and an interconnection cable (304) are disclosed. A preheating power supply (208) includes power conversion circuitry configured to output welding-type power via a first output power connector (230) and a ...  
WO/2018/223329A1
A control system and device for suppressing an inrush current, and application method thereof. The control system for suppressing an inrush current comprises: a control end (10), an application device (30), and a controller (20). The con...  
WO/2018/217154A1
A device comprising at least two controllable reactance elements (1) arranged to compensate a single phase-to-earth fault current in a power network with a power transformer (3).The at least two controllable reactance elements (1) are ea...  
WO/2018/209604A1
A drive circuit (10) and an electronic device. The drive circuit (10) comprises a first switch circuit (101), a protection circuit (102), and a clamping circuit (103). The first switch circuit (101) comprises a control end (101A), an inp...  
WO/2018/211391A1
A system and method is presented for lowering inrush current to an uninterruptible power supply. During a startup phase, an AC voltage is applied to the secondary winding of a transformer interposed between an input power supply and a re...  
WO/2018/212014A1
The present invention balances avoidance of excessive standby power loss with supplying of large current, and uses simple configuration to electrically connect a power storage device and a load which is for onboard use in a vehicle and w...  
WO/2018/206345A1
The invention relates to an encapsulated spark-gap based surge voltage protector (2) having two, at least partially opposing, main electrodes (4, 5) and at least one trigger or auxiliary starting electrode (3) and an arc chamber (6) arra...  
WO/2018/207054A1
The invention relates to an electrical circuit (21) for charging a secondary battery (22) that comprises a dc-converter (23), wherein the dc-converter (23) comprises an input connector(24) to an input dc voltage (25) and an output connec...  

Matches 1 - 50 out of 12,595