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Matches 1,051 - 1,100 out of 12,865

Document Document Title
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...  
WO/2009/131997A3
An electrostatic discharge protection device is disposed between true-complement input pins of a differential signal pair and a ground node. A common node couples the three diode stacks together. A first and a second diode stack each con...  
WO/2009/156654A2
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/2009/152664A1
An annular electrodeless fluorescent lamp assembly with a lamp head (12) comprises two power couplers (13), a lamp head (12) and at least one capacitor (15). The two power couplers (13) are connected to two down-leads of the lamp head (1...  
WO/2009/116849A3
The electrical interface protecting apparatus is coupled between the wall-outlet and connected equipment to solve the difficulty of keeping broadband over power line modems and connected equipment safe from lightning and power surges whi...  
WO/2009/155046A1
A power interrupt device for interrupting power from a power supply to an electrical circuit having a non-conducting body moveable between a first position interposed between a conductor and the power supply and a second position removed...  
WO/2009/153583A1
An actuator device for a current limiter apparatus that has a first conducting lead, a second conducting lead, a superconducting element connected between the first and second conducting leads, and a vessel enclosing the superconducting ...  
WO/2009/149750A1
A plant for transmitting electric power comprises a direct voltage network for High Voltage Direct Current and at least one alternating voltage network connected thereto through a station (4). The station comprises at least one Voltage S...  
WO/2009/149744A1
An apparatus for protecting equipment connected to a high voltage direct current line comprises a current valve (12) having at least one semiconductor device (13) and a rectifying member (14) connected in anti-parallel therewith. A surge...  
WO/2009/145249A1
Provided is a discharge noise absorbing element, which can avoid the noises of currents and voltages of all frequency bands of thunder, static electricity, electromagnetic wave and magnetism to electric devices connected with electric wi...  
WO/2009/143967A1
The subject of the invention is a protection system for voltage transformers, finding application in the attenuation of ferroresonant states occurring in voltage transformers in high and medium voltage grids. The system according to the ...  
WO/2009/144872A1
An open magnetic circuit coil (6) is arranged on a line connecting a battery (1) to a charger (CH1). Furthermore, a resistor (2) is connected in series to a large-capacitance electrolyte capacitor for smoothing a charger output which is ...  
WO/2009/144216A1
The invention relates to a surge arrester comprising an integrated protection device, in particular against sustained, mains frequency overvoltage (TOV), comprising at least one varistor and a PTC resistor, which is in thermal contact wi...  
WO/2009/026032A3
A system, apparatus, and method for communicating sensor information of a system component that is disposed in a hazardous location to a system controller including using an advanced hazardous location monitor/controller apparatus (data ...  
WO/2009/135250A1
This invention relates to alternating current switching devices and in particular to in-line alternating current switching devices. The invention of an in-line A.C. power switching assembly includes a controllable A.C. power switch which...  
WO/2009/131997A2
An electrostatic discharge protection device is disposed between true-complement input pins of a differential signal pair and a ground node. A common node couples the three diode stacks together. A first and a second diode stack each con...  
WO/2009/132170A1
A voltage clamp protection circuit to protect against overvoltage conditions where there is insufficient current to blow a fuse. The voltage clamp protection circuit includes a voltage clamp and a thermal cutoff. The voltage clamp clamps...  
WO/2009/132350A1
The present disclosure generally pertains to surge protection systems (52) that protect outside plant equipment from high-energy surges. In one exemplary embodiment, a protection system is used for protecting Ethernet equipment that is c...  
WO/2009/128942A1
A current-limiting surge protection device is provided. The current-limiting surge protection device includes a pair of series connected normally on MOSFET's and a pair of voltage controlled normally off switches that are disposed to mon...  
WO/2009/126241A1
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/2009/126669A2
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...  
WO/2009/126238A1
The present invention includes a pass transistor (2) that limits current drawn from a circui without using a series resistor and while drawing minimal current from an external supply A current mirror (Klout)of the output current (lout) i...  
WO/2009/124791A1
A ground-fault residual current compensation system having at least two primary side inverters (10a, 10b, 10c, 10d), at least two primary side coils each supplied by at least one inverter, and at least two secondary side coils which are ...  
WO/2009/121799A1
The invention relates to a protection device (1) comprising at least one protection element (SD1, SD2) for protecting an electrical system from being impaired and/or destroyed by interference. The protection device (1) comprises a state ...  
WO/2009/121143A1
A fault current limiter (FCL) includes a series of high permeability posts (1) for collectively define a core for the FCL. A DC coil (2), for the purposes of saturating a portion of the high permeability posts (1), surrounds the complete...  
WO/2009/122124A1
A superconducting fault current (10) limiter comprises a superconducting element (12) having a plurality of superconducting portions (14) and at least one connector (16). Each superconducting portion (14) has end regions (18, 20) and eac...  
WO/2009/121770A1
The invention relates to a protection device (1) comprising at least one protection element (FS, SD1, SD2) for protecting an electrical system from being impaired and/or destroyed by interference. The protection device (1) comprises a di...  
WO/2009/120114A1
The high-voltage insulator for securing a high-voltage wire in an electrical plant or in an electric power line comprises an insulating body, the first end of which is used for mechanically connecting to a high voltage wire and/or to a f...  
WO/2009/116849A2
The electrical interface protecting apparatus is coupled between the wall-outlet and connected equipment to solve the difficulty of keeping broadband over power line modems and connected equipment safe from lightning and power surges whi...  
WO/2009/108467A1
The present invention provides a multichannel active sensing and switching device featuring a multiple sensing and switching module configured to respond to operational conditions of different load types and provide load type sensor sign...  
WO/2009/106425A1
A monitoring device for monitoring protective equipment which protects electrical systems against disruptive events is disclosed, wherein a portion of the electrical energy coupled to the monitored protective equipment due to the disrupt...  
WO/2009/085363A3
Systems and methods for disabling a secure Integrated Circuit (IC) are provided. In general, in response to detecting an event such as an intrusion on the secure IC, a supply voltage (VDD) node of the secure IC is clamped to, or effectiv...  
WO/2009/103896A2
The invention relates to a device for protection against overvoltage that comprises: at least one overvoltage protection member (11); a thermo-sensitive device capable of deformation on the basis of the temperature thereof; a thermal lin...  
WO/2009/101269A1
The present invention relates to a voltage step-up circuit (100). One particularly advantageous application of the invention is in the field of 12 V/42 V DC/DC power convertors supplied by the power system onboard a motor vehicle (12 V b...  
WO/2009/102398A1
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/2009/052517A3
A surge suppression device may include a housing having a cavity, a center conductor positioned within the cavity, a spiral inductor having an inner curve coupled to the center conductor and an outer curve, a coil capture device connecte...  
WO/2009/099663A1
An arrangement for use in a safety notification system includes an alarm signal power source, a first semiconductor device, a current sensing unit, and a controller unit. The alarm signal power source is configured to generate bias power...  
WO/2009/097557A2
Protection circuit for protecting a rectifier circuit (400) from electrostatic pulses. The circuit employs a first bypass capacitor (718) that is connected between positive and negative power lines to bypass electrostatic pulses that hav...  
WO/2009/095930A1
An electromagnetic current limiter device comprising at least one ferromagnetic core having a central opening; at least one winding of electric conducting material wound on the core; a portion of said winding passing through said opening...  
WO/2009/067673A3
Adaptive electrostatic discharge (ESD) protection of a device interface has very good ESD robustness when it is handled or when installed into or removed from a system. And has robust immunity to DPI, electromagnetic interference (EMI) a...  
WO/2009/067672A3
Adaptive electrostatic discharge (ESD) protection of a device interface has very good ESD robustness when it is handled or when installed into or removed from a system. And has robust immunity to DPI, electromagnetic interference (EMI) a...  
WO/2009/059044A3
A surge protection circuit may include a tuned circuit board with traces designed to provide a surge protected and RF isolated DC path while propagating RF signals through the PCB dielectric with microstrip lines. The surge protection ci...  
WO/2009/080382A1
The invention relates to a method for operating a DC-DC converter according to the so-called current mode control, wherein a current measuring signal for determining the turn-off time of a converter switching element (S1) is fed to a PWM...  
WO/2009/076431A1
The embodiments of the apparatus and method described herein provide an integrated ESD/EOS protection solution which simplifies system PCB design for signal integrity compliance. As part of providing this solution, it is also desired to ...  
WO/2009/073328A1
A portable radio and battery pack configuration favoring higher available transmit power in explosive atmosphere applications includes a radio device (302) and a battery pack (304) removably attached to the radio device. The battery pack...  
WO/2009/067746A1
A fault current limiter including: a ferromagnetic circuit formed from a ferromagnetic material and including at least a first limb, and a second limb; a saturation mechanism surrounding a limb for magnetically saturating the ferromagnet...  
WO/2009/067673A2
Adaptive electrostatic discharge (ESD) protection of a device interface has very good ESD robustness when it is handled or when installed into or removed from a system. And has robust immunity to DPI, electromagnetic interference (EMI) a...  

Matches 1,051 - 1,100 out of 12,865