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Patent Searching and Data


Matches 1,001 - 1,050 out of 12,854

Document Document Title
WO/2010/149629A1
A current-limited differential entry stage compares an input signal (IN) to a reference voltage (V ref ) generated by a current-limited transistor or diode configuration (E6, E7). Current limiters comprise a D-mode feedback transistor (D...  
WO/2009/126241A9
A circuit that protects from high power-on in-rush currents and short circuits. The circuit has a pass transistor and a parallel smaller transistor. A comparator senses when an output voltage crosses a reference and turns off the pass tr...  
WO/2010/078303A3
An electrical safety shutoff system and devices for disabling electrical power output from individual photovoltaic modules in a photovoltaic array, including one or more shutoff circuits, each of which can disable electrical power output...  
WO/2010/136257A1
In an over-voltage protection apparatus in front of an inverter (5) for feeding electrical energy of a DC voltage source (15) in particular into an AC network (4) having one DC voltage input stage (6) comprising at least two current-carr...  
WO/2010/115224A3
The invention relates to a device and a method that can enable generators (1) for producing electrical energy to be kept stable on the network during and following a line failure, such as a voltage dip. This requirement is defined in the...  
WO/2010/130213A1
A LED illumination device capable of open/short circuit protection and its illumination circuit are provided. The LED illumination device comprises at least two light source modules (32, 42), at least two LED groups, a power supply (33, ...  
WO/2010/125183A1
The present invention relates to a method for connecting a transformer apparatus (102.3) to an energy supply apparatus of a railway power network, which energy supply apparatus provides an alternating voltage, wherein the transformer app...  
WO/2010/126391A1
The invention can be used in the field of electrical engineering. The technical result is an increase in activation speed. The method consists in measuring the positive-phase-sequence voltage of the busbars in a backup power supply sourc...  
WO/2010/120834A2
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/2010/119436A1
A voltage suppressor component comprising: a semiconductor layer; a first port mounted on the semiconductor layer and configured to receive electrical power; a second port mounted on the semiconductor layer and configured to provide the ...  
WO/2010/079132A3
The invention relates to an overvoltage protector comprising a housing and at least one overvoltage limiter arranged in the housing, especially a gas-filled surge arrester (1), a suppressor diode (2) or a varistor. According to the inven...  
WO/2010/047890A4
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/2010/099842A1
The present invention relates to a controlled truncating radio connection for a high-voltage impulse test system, preferably for quality assurance of power transformers. According to the invention, the truncating radio connection is expa...  
WO/2010/100391A1
A galvanic isolator is disclosed, which comprises a plurality of semiconducting elements, earth connecting means for connecting the plurality of semiconducting elements to at least two sources of electric potential having a current flow ...  
WO/2010/101103A1
Disclosed is an electrostatic discharge protection member which can be formed in an arbitrary shape and conveniently used for solving ESD problems in electronic circuit boards of various designs, shows excellent properties of highly accu...  
WO/2010/096978A1
An over-current protection circuit and a motor controller comprising it. The over-current circuit includes a main power transmission circuit (1), a trigger circuit (2) and a detection circuit (3). The main power transmission circuit (1) ...  
WO/2010/096375A2
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/2009/102398A8
An isolation device having normally off detection is provided. The isolation device having normally off detection includes a transient blocking unit (TBU) having at least one depletion mode device disposed between a pair of sense termina...  
WO/2007/018613A3
In some embodiments, an apparatus and a system, as well as a method and an article, may include receiving shunt current in one or more conductors according to a sensed component of power distributed by the conductors through one or more ...  
WO/2010/059427A3
There is disclosed a circuit interrupting device with symmetrical inputs comprising a first input configured for connection to a power source or a load circuit and a second input configured for connection to a power source. There are a p...  
WO/2010/086520A1
In order to reduce the electric current consumption resulting from a transient operating state of a member (2) of a vehicle, the device (1) of the invention includes a variable impedance (4) mounted in series between the power source (11...  
WO/2010/047890A3
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/2010/082861A1
The lighting arrester for protecting elements of electrical facilities or a power transmission line comprises an insulation body which is made of a solid dielectric, preferably in the form of a bar, a strip or a cylinder, two main electr...  
WO/2010/080319A1
Methods and devices of the invention include an electrostatic discharge (ESD) protection circuit. This circuit includes rise time dependent activation circuitry capable of detecting a slew rate of an input signal and capable of determini...  
WO/2010/079132A2
The invention relates to an overvoltage protector comprising a housing and at least one overvoltage limiter arranged in the housing, especially a gas-filled surge arrester (1), a suppressor diode (2) or a varistor. According to the inven...  
WO/2010/070401A1
An antenna assembly generally includes an antenna element, an amplifier, and an electronics protection system coupled generally between the antenna element and the amplifier for filtering cross-talk and/or for protecting against electros...  
WO/2010/067679A1
Conventionally, countermeasures have been taken to alleviate voltage surges with a motor that is driven by an inverter, wherein a filter is inserted so as to minimize an excessive voltage surge that is caused by a switching operation of ...  
WO/2010/066096A1
A voltage and current surge protective method and its circuit for an induction cooker. The method includes the following steps: detecting a surge voltage signal of an input alternate current power supply, and detecting a surge current si...  
WO/2010/066303A1
The present invention relates to a power system (1) comprising an electrical apparatus (2), a switchgear (4, 4a) electrically connected by means of a power cable (3) to the apparatus and including a switch (5) arranged to connect and dis...  
WO/2010/065942A1
A system and method for managing power delivered to a processing chamber is described. In one embodiment current is drawn away from the plasma processing chamber while initiating an application of power to the plasma processing chamber d...  
WO/2009/156654A3
The invention relates to a device and a method for coupling two portions of a direct-current network, in which two capacitors (C1, C2) are respectively provided, particularly onboard an aircraft. The device includes at least one static c...  
WO/2010/059427A2
There is disclosed a circuit interrupting device with symmetrical inputs comprising a first input configured for connection to a power source or a load circuit and a second input configured for connection to a power source. There are a p...  
WO/2010/049245A1
A protection circuit for protecting components from an electrostatic discharge at a node in an integrated circuit having a first set of electronic components of a first voltage sensitivity, the protection circuit comprising: detection ci...  
WO/2010/050906A1
Output terminals (o1, o2) of a differentially excited transmitting circuit (TC) are connected through matching capacitors (MC1, MC2) to connecting terminals of the oscillatory circuit antenna (OCA) on the other side said connection termi...  
WO/2010/050917A1
A power supply (20) for providing a desired current to an electric load (23) broadly comprises: a current limiter (21 ) for providing a desired current; a current sensor (28) for determining the actual current supplied by the current lim...  
WO/2010/046365A1
The invention relates to a multi-staged overvoltage protection circuit, in particular for information-technology systems, comprising at least one coarse protection element and at least one fine protection element, wherein the at least on...  
WO/2010/047890A2
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/2010/046247A1
The invention relates to a protective circuit, wherein the protective circuit comprises at least two electrical connections (1,2) on both the input and output sides, wherein an input-side connection (1) is electrically connected to at le...  
WO/2010/044121A1
The present invention concerns a superconducting fault current limiter (1 ) comprising a rectifier bridge (2) made of active devices (3a, 3b, 3c, 3d) connected to a circuit that is to be protected, said rectifier bridge (2) comprising fo...  
WO/2010/037579A1
The invention relates to a device and a method for limiting the rail potential in a DC railway, a low-impedance link (4) being arranged between the rail (1) and the ground (2) below the structure. A switchgear (6) which is connected to a...  
WO/2010/037634A1
The invention relates to an electrical device having a support frame and having components to which high voltage can be applied and which are held by the support frame. The electrical device according to the invention is characterized by...  
WO/2010/039580A1
A pump system. The pump system includes a pump, a motor coupled to the pump, a sensor coupled to a power source, and a controller. The motor operates the pump. The sensor detects an electrical characteristic of the power source. The cont...  
WO/2010/035168A1
A current limiting controller (100) for a light emitting diode (LED) driver automatically resets the LED driver to normal operation after elimination of a fault. The current limiting controller (100) includes a fault detector to detect a...  
WO/2010/025758A1
The invention relates to a device having - a converter (29), which is connected to a direct voltage circuit (2) through a short-circuit protection unit (30), - which is arranged at least partially in the direct voltage circuit (2) and is...  
WO/2010/024100A1
Disclosed is an assembled battery (10) constituted to have a plurality of secondary batteries (2) connected in series and to comprise a first bypass circuit (12) including a Zener diode (6) connected in parallel with the series connectio...  
WO/2010/023545A1
A modular system for transmitting power and data between a control processor that receives and transmits signals along a trunk of a distributed control network, and one or more field devices located in a hazardous area includes a backpla...  
WO/2010/012445A1
Circuitry for power limiting of an electronic assembly comprises units for power generation, for voltage amplification and for power limiting. In known apparatus the power limiting unit is populated with resistors and Zener diodes which...  
WO/2010/010067A1
A surge arrestor arrangement (1) comprises an arrestor current path (2) with a plurality of arrestor columns (3, 4). The arrestor columns (3, 4) are provided on one side with terminal fittings (5, 6). The fittings (5, 6) are connected to...  
WO/2006/053326A3
A transient blocking unit (TBU) with integrated over-current protection and discrete over-voltage protection. In one example embodiment, the present innovations are embodied as a unit for protecting a circuit from high voltage and high c...  
WO/2009/126669A3
A surge suppressor for protecting electronic equipment by suppressing damaging surges of low frequency signals in a radio frequency (RF) transmission line, while allowing RF signals of a desired frequency range to pass through the transm...  

Matches 1,001 - 1,050 out of 12,854