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Matches 951 - 1,000 out of 12,862

Document Document Title
WO/2011/108793A1
Disclosed is a superconducting current limiter for suppressing a bus voltage drop of an electric power system. A first wire, a second wire, and a third wire are wound on the same iron core, and a superconductor is connected to one of the...  
WO/2011/104922A1
Provided is a surge absorbing circuit which absorbs surges stably and does not affect signals in a signal wire even in the case of high-frequency signals, and also provided is an electronic device which uses the surge absorbing circuit. ...  
WO/2011/098359A1
A surge-limiting device (10) according to the invention comprises a varistor (11) that is connected in series to a parallel circuit (12) consisting of a preferably electronic switch (13) and an electronic component (14) with a surge-limi...  
WO/2011/098145A1
An arrangement for protecting a solid-state dc-breaker during a fault condition causing a voltage transient across the dc-breaker, wherein the arrangement comprises a first and a second varistor arranged in parallel with the dc-breaker, ...  
WO/2011/097945A1
A switching power supply for suppressing high voltage surges comprises a transformer (T1), an input circuit at the primary side of the transformer and an output circuit at the secondary side of the transformer. The input circuit comprise...  
WO/2011/097921A1
A Digital Subscriber Line (DSL) protection circuit includes a DSL and Plain Old Telephone Service (POTS) broadband-narrowband mixed signal port (4), a narrowband POTS port (5) and a splitter (6). The DSL and POTS broadband-narrowband mix...  
WO/2011/095199A1
The invention relates to a device for limiting current having variable coil impedance. A current limiter is proposed, wherein by using a superconducting coil (5) inside a choke coil (1), the inductance and thus the impedance of the choke...  
WO/2011/095782A1
A method of testing a short circuit protection system applied to a spur of an electric circuit, in which the short circuit protection system comprises a current limiting means which applies a current limit to said spur if the current the...  
WO/2011/095624A1
Circuit (1) for connecting and disconnecting an energizable electric system (2), in particular for generating and/or storing electric energy, and an electric network (3) of a vehicle, wherein the circuit (1) comprises at least one mechan...  
WO/2011/090827A2
An electrostatic discharge (ESD) protection clamp (21, 21', 70, 700) for protecting associated devices or circuits (24), comprises a bipolar transistors (21, 21', 70, 700) in which doping of facing base (75) and collector (86) regions is...  
WO/2011/085563A1
A surge suppressor with a thermal protective function comprises an outer case (1) and a base (3) having an assembly plate (2). The base is provided with a surge suppressing element and a thermal protective device (4). The thermal protect...  
WO/2011/038258A3
A surge protector comprises an internal circuitry configured to isolate a premise device from a surge input. In one embodiment, the internal circuitry can comprise a first signal path and a second signal path that is inductively coupled ...  
WO/2011/038260A3
A surge protection device with an internal circuitry that protects a premise device from a surge input that arises from a transient event, e.g., a lightning strike. The internal circuitry can comprise a surge path that includes windings,...  
WO/2011/073540A1
The invention relates to a protection assembly including a protection module (20) that comprises at least one varistor (1) having an operation power threshold. A cutoff apparatus (21), connected to the protection module (20), includes a ...  
WO/2011/069866A1
A monitoring device (1) for monitoring a condition of a surge arrester comprises monitoring means (210) adapted to monitor a leakage current recovery of the surge arrester after an occurrence of a surge over a recovery monitoring period ...  
WO/2011/067690A1
A device may include a switch and a circuit coupled to the switch. The switch may include a structure with a top portion and a bottom portion and a material included within the structure. The material is configured to expand within the s...  
WO/2011/067255A1
The present invention relates to a ground fault handling device (GHR) that provides an interface between two power transmission sections of a power transmission and/or distribution system as well as to such a power transmission and/or di...  
WO/2011/067016A1
The invention relates to a current limiter comprising an input for a supply voltage source and an output for an output voltage. The current limiter has at least one control circuit, a current sensor which is designed to measure a current...  
WO/2011/063766A1
A pull and plug structure for a surge protector comprises a protecting module (3) and a base (1). The protecting module is in pull and plug connection with the base and rotatably connected with a linkage rod (2). The said linkage rod is ...  
WO/2011/058506A1
A defibrillation circuit comprising a gas discharge tube and a light source arranged to pre-energize the gas discharge tube in order to provide predictable breakdown conditions of the gas discharge tube. The gas discharge tube may be use...  
WO/2011/058318A1
An electrical circuit comprising a power supply, a load and a surge protection device adapted to protect said load and/or power supply from electrical fast transient events according to the requirements of IEC 61000-4-2 or 4 and which co...  
WO/2011/050977A1
An integrated circuit (300) protected from an electrostatic discharge has one or more positive interconnection means (306d, 306d, 306i) for electrically coupling the integrated circuit (300) externally to the integrated circuit (300) at ...  
WO/2011/046689A1
An electronic driver apparatus is provided for driving power an organic LED, including a switchable inductance circuit and a controller to connect an inductance between a power source and the OLED during a startup period as power is firs...  
WO/2011/041929A1
A system and method for providing surge protection. The system includes a surge protector (100) for protecting a load (104) coupled to a power source (102). The surge protector (100) includes an input having a first node, a second node, ...  
WO/2011/042631A2
The invention relates to a method for the real time estimation of the temperature of a stator (36) and a rotor (38) in a rotating electrical machine (30), the stator (36) and/or the rotor (38) supporting at least one corresponding electr...  
WO/2011/041801A2
Apparatus for protecting hardware devices. A DC pass RF surge suppressor includes a housing defining a chamber having a central axis, the housing having an opening to the chamber, an input conductor disposed in the chamber of the housing...  
WO/2011/039553A1
The invention is on the one hand a protective method for a three-phase electric network (10), in the course of which an overcompensated state is realized by earthing neutral point (11) through inductive device (13), in case of the occurr...  
WO/2011/038993A1
The invention relates to a device (1) for switching at least one consumer (2), in particular in a motor vehicle, having a series connection (6) of a first switch (7) and the consumer (2) between the positive pole and the negative pole of...  
WO/2011/039622A1
A protection device for radiocommunications apparatuses, including: a transmission line (15) for radio- frequency signals; a reference-potential line set at a reference potential; a first conductive element (22); a first biasing unit (30...  
WO/2011/038969A2
The invention relates to a free-wheeling circuit for the rapid reduction of a shutdown overvoltage of an inductive load (1) when the latter is shut down. The free-wheeling circuit comprises a switching threshold component (11) by which t...  
WO/2011/037565A1
According to one embodiment, an apparatus (100) for providing in rush current tolerance to an electronic device comprises a bulk capacitor (140), a resistor network (150), and a power switch (160). The resistor network (150) is configure...  
WO/2011/036287A1
The invention relates to a device for limiting a voltage (U1) between a first electric line (1), which is in particular connected to a running rail (G) of a DC railway, and a second electrical line (2), which is in particular connected t...  
WO/2011/038260A2
A surge protection device with an internal circuitry that protects a premise device from a surge input that arises from a transient event, e.g., a lightning strike. The internal circuitry can comprise a surge path that includes windings,...  
WO/2011/038258A2
A surge protector comprises an internal circuitry configured to isolate a premise device from a surge input. In one embodiment, the internal circuitry can comprise a first signal path and a second signal path that is inductively coupled ...  
WO/2011/026381A1
A soft-start circuit for a power supply is arranged between the power supply (70) and a main body unit (20). One input terminal of the main body unit is connected to one output terminal of the power supply. The soft-start circuit include...  
WO/2011/028300A1
One form of the invention provides a method and apparatus for preventing an extraordinary electromagnetic pulse from reaching and rendering inoperative an electrical component of an electrical power system, wherein the component is locat...  
WO/2011/024669A1
A surge protection circuit for use in a three-phase four-wire system circuit is provided which can ensure protective measures on the load side against lightning surge and further can facilitate the connection by use of surge modules. In ...  
WO/2011/024180A1
A current limiting device (30, 40, 50, 60) comprising for each phase of an AC supply a closed magnetic core (31) of reduced volume and mass having first and second pairs of opposing limbs (32a, 32b; 33a, 33b), and at least one AC coil (3...  
WO/2011/020301A1
A method and a device for limiting secondary arc current of extra-high voltage/ ultra-high voltage double circuit lines on the same tower. The method comprises the following steps: judging the type of the single-phase earth fault when th...  
WO/2010/151583A3
A new type of superconducting fault current limiter is disclosed, which can advantageously be used with high voltage transmission networks. The circuit is electrically connected to two terminals (144, 146), which connect to the transmiss...  
WO/2011/022233A1
Disclosed embodiments are directed to an electrical overstress protection circuit. The electrical overstress protection circuit may include an intermediate node receiving a reference voltage, a first pair of clamp devices, having opposit...  
WO/2011/018390A1
The invention relates to a solar cell having a flat cell substrate transparent in the spectral range of visible light and at least one partial range of the infrared spectral range, and a cell construction disposed on a surface of the sam...  
WO/2011/018846A1
A connector (13) connects a charger (17) to a vehicle-mounted storage battery (14), and the charger (17) converts AC power (15) into DC to charge the vehicle-mounted storage battery (14) of an electric vehicle (12). Furthermore, a parall...  
WO/2011/011985A1
A surge protector with a thermal protection device includes a housing (2), a base (3) provided in the housing (2), an overvoltage suppressor (5) provided on one side of the base (3), a spring detachment device (1) provided on the other s...  
WO/2011/012015A1
A fault line selection method for a small current grounding system of a distribution network comprises: assembling resistances, a vacuum contactor, a single-phase voltage mutual-inductor and a zero sequence current mutual-inductor in par...  
WO/2010/120834A3
A high voltage surge protection device having a characteristic impedance includes a center conductor defining an axis, an electrically conductive outer body concentrically disposed in surrounding relation to the inner conductor, and a di...  
WO/2010/149217A1
The invention relates to a method (20) for protecting a transformer (1), wherein the transformer (1) comprises a primary side (2) and an ungrounded secondary side (3), the secondary side (3) comprising a neutral (4). The method comprises...  
WO/2010/096375A3
A resistive radio frequency (RF) signal power limiter is for connection between an antenna and a receiver circuit in an RF receiver system. The receiver circuit may include a low noise amplifier (LNA). The resistive RF signal power limit...  
WO/2010/151393A1
An intrinsic safety approach is provided for a battery powered communication device. Sparking is prevented at radio contacts during attachment and removal of a battery (104, 204, 304, 404) from a radio (102, 202, 302, 402) through the us...  
WO/2010/151583A2
A new type of superconducting fault current limiter is disclosed, which can advantageously be used with high voltage transmission networks. The circuit is electrically connected to two terminals, which connect to the transmission network...  

Matches 951 - 1,000 out of 12,862