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Patent Searching and Data


Matches 701 - 750 out of 13,138

Document Document Title
WO/2015/113659A1
The invention relates to a circuit arrangement for overvoltage protection comprising: a surge arrester (1) having a first electrode (A), the connection thereof being coupled to a first potential node (10), a second electrode (B), the con...  
WO/2015/108221A1
The present invention relates to a device for limiting an inter-phase current and a leakage current of a flooded electric facility. More specifically, the present invention relates to a device for limiting an inter-phase current and a le...  
WO/2015/103857A1
A modular high-voltage vacuum direct-current breaking device based on artificial zero-crossing, comprising a converter branch and a main circuit breaker composed of a plurality of identical modules, wherein the converter branch is connec...  
WO/2015/101327A1
A method for calculating the minimum switching time of a closing resistor of a high-capacity main transformer. The method comprises the following steps: (1) calculating the time t1 when a magnetizing inrush current of the first closed ph...  
WO/2015/100882A1
An electro-static discharge (ESD) protection circuit, comprising a thin film transistor; a first electrode of the thin film transistor is electrically connected to a first signal transmission line to be protected; and the tip of a second...  
WO/2015/101368A1
The design of the triggering circuit (1) of the overvoltage protection device with an asymmetric element, specified for actuating a spark gap (4) in symmetric or asymmetric arrangement of main electrode I (5), connected to input terminal...  
WO/2015/101563A1
The present application relates to a sampling circuit for an electronic transformer (CT), wherein the electronic transformer has first (12) and second (14) output terminals. The sampling circuit includes a differential sampling chip (IC)...  
WO/2015/097394A1
The invention relates to a semiconductor power controller (SSPC) (1), including a power portion made up of one or more electronic power components, and a control portion (8) including at least one signal-processing device and controlling...  
WO/2015/028222A3
The invention relates to a rectifier module (40) for an active bridge rectifier, said module comprising two switch elements which are serially connected between two end terminals and between which a central tap is formed and comprising a...  
WO/2015/098937A1
This invention addresses the problem of providing a small-form-factor, low-cost overvoltage protection circuit that protects equipment from momentary excessive voltages and a power conversion device provided with said overvoltage protect...  
WO/2015/095400A1
A peak current protection circuit includes a current sensing circuit configured to sense an operating current of a DC-DC converter, and an over-current detector configured to generate an over-current detect signal at a peak current limit...  
WO/2015/089763A1
The present disclosure provides a surge protection device comprising a surge arrestor and an arrestor assistor. The surge arrestor is arranged within a circuit branch connected in parallel with a load and adapted to clamp a load voltage ...  
WO/2015/088732A1
In one embodiment a fault current limiter comprises a current splitting reactor having interleaved windings to reduce an insertion impedance of the fault current limiter during non-fault conditions. The current splitting reactor having i...  
WO/2015/086248A1
The subject matter of the invention is a series spark gap comprising at least a first spark gap (FS1) comprising a first main electrode (FSA1) and a second main electrode (FSA2) and a second spark gap (FS2) comprising a first main electr...  
WO/2015/079220A1
A device for limiting the inrush current component of a current provided by a supply (2) to a load (3), the device comprising an impedance (5) arranged between the supply and the load, a switch (7) arranged to divert the current from the...  
WO/2015/067567A1
A method of controlling power provided by a generator (10) to an end system in which power is diverted from the output of said generator to an auxiliary system (22) during periods of excessive power output from the generator. The diverte...  
WO/2014/170361A9
The present invention relates to a downhole wireline tool for performing an operation in a well at a depth of up to 15 km downhole, the tool being powered by direct current at a predetermined voltage in a first end by a power supply unit...  
WO/2015/068998A1
The present invention relates to a protection circuit for a power device which protects a power device from a surge by effectively discharging an SMPS power unit when a surge voltage or a surge current is applied through an AC power inpu...  
WO/2015/067410A1
The invention relates to a current regulator (1A) for an inductive load (ZL) in a vehicle, comprising an analyzing and control unit (22); at least one circuit breaker (T2) which is looped-in serially to the inductive load (ZL) and which ...  
WO/2015/066007A1
An intrinsically safe voltage clamping device includes a regulated rail, a ground rail, and a shunt regulator assembly. The shunt regulator assembly is coupled to both the regulated rail and the ground rail and includes one or more regul...  
WO/2014/187634A3
The invention relates to a protection circuit for an actuator in a vehicle, comprising at least one switch (102) for interrupting and short-circuiting at least two electric lines (111, 113) for connecting connections (121, 123) of an ene...  
WO/2015/058789A1
There is provided a current-limiting circuit (600), comprising a transistor (Q1) connected between an input terminal (610) of the current-limiting circuit and an output terminal (620) of the current-limiting circuit; and a controller (63...  
WO/2015/055233A1
A device (10) for monitoring a surge arrester, comprising : - a grounding line (23); - a measuring unit (24) comprising one or more analogue measuring circuits (25, 26) for measuring the electric current passing through the grounding lin...  
WO/2015/054954A1
A direct-axis current protection method and device for a permanent magnet synchronous motor drive system. The method includes: pre-calculating the direct-axis current of the next moment according to the current voltage transmitted from a...  
WO/2014/173616A3
The invention relates to a surge protection device (100) for protecting an onboard power system (24) of an electric vehicle (20) from an electric surge, having the following: an input device (105) which is designed as a current terminal ...  
WO/2015/055951A1
The invention relates to a device for protecting against short-circuits upstream of an electrical power supply module (.1,60, 160'), comprising an inlet filter with at least one capacitor (106 to 108, 106' to 108') and an inductance (104...  
WO/2014/090551A3
A precharging circuit (7) for charging an intermediate circuit capacitor (2) is provided having a first electronic component (8), a second electronic component (9) and a diagnostic circuit (14). The diagnostic circuit (14) is designed fo...  
WO/2015/051198A1
An intrinsically safe redundant regulator circuit (600) includes a plurality of voltage limiting regulators (602, 604, 606) between a regulated rail and a ground rail. Each of the plurality of voltage limiting regulators includes: (i) a ...  
WO/2015/047554A1
A system interconnect includes a first resistor-capacitor (RC) clamp having a first RC time constant. The system interconnect also includes second RC clamps having a second RC time constant. The first and second RC clamps are arranged al...  
WO/2015/045107A1
Provided is an inrush current limiting circuit provided with a second semiconductor switch in which an inrush current limiting circuit such that a series circuit of an inductor and a current detection resistor is connected between a powe...  
WO/2015/043237A1
A surge protection circuit for a PFC circuit. An L line and an N line of an alternating-current power supply are connected to the positive electrode of a PFC capacitor (C1) by means of a high-voltage diode module. A current limiting appa...  
WO/2015/046258A1
The purpose of the present invention is to provide a protection device capable of reliably protecting electronic or electrical equipment and having recovery properties even when an inrush current value is large or varies widely. This pro...  
WO/2015/038402A1
Techniques for improving electro-static discharge (ESD) performance in integrated circuits (IC's). In an aspect, one or more protective diodes are provided between various nodes of the IC. For example, protective diode(s) may be provided...  
WO/2015/036830A1
An electrical storage system includes an electrical storage device (10), a load (20), a positive electrode line, a negative electrode line, a first relay (MC1), a second relay (MC3), a third relay (MC2), a drive circuit (30) and a contro...  
WO/2015/036483A1
A system for transporting electric power to a subsea node, the system comprising a first direct current power unit, a second direct current power unit, a referenced earth operatively connected to the first and second power units and disp...  
WO/2015/035017A1
The present subject matter relates to a battery module 22 for use in a vehicle 10. The battery module 22 may include a housing 50, a plurality of battery cells 54 disposed within the housing 50, and solid state pre-charge control circuit...  
WO/2015/030069A1
In the present invention, the current command value during the period from when a relay switch (SW) is turned on until charging of an inverter capacitor (C) is completed is set at a value that is smaller than a value corresponding to the...  
WO/2015/026816A1
A solid-state fault current limiter including a current splitting reactor, comprising a system current input, a passive current output and a control current output. A voltage control reactor includes a first end and a second end, the fir...  
WO/2015/026820A1
A fault current limiter circuit including a fast switch fault current limiter (FSFCL) and a voltage control reactor (VCR) operative to conduct load current during a steady state operation and limit load current when the load current exce...  
WO/2015/026570A1
A system and method for providing isolated power to the gate driving circuits used in solid state switching devices is disclosed. Rather than using expensive isolated AC/DC power supplies, an isolation transformer is used to provide isol...  
WO/2015/023711A1
Anti-arcing circuits (120, 310) are described herein that are configured to prevent or substantially mitigate arcing when a power adapter (118) is connected/disconnected from a client device (102). The anti-arcing circuit (120) restricts...  
WO/2015/023452A1
An arrester bypass device can include a switch having an normal state and an operated state. The arrester bypass device can also include a first electrode mechanically coupled to the switch, where the first electrode is held when the swi...  
WO/2015/022017A1
Protection of communication lines are described herein. In at least some examples herein, a communication line (102) interfaces an emitter terminal (104). A controllably conductive device (208) has a first main load terminal (218), a sec...  
WO/2015/021801A1
A surge protection device and method. The device comprises a switch protector (10) with at least three electrodes. When an interelectrode voltage of the switch protector (10) between two electrodes of the at least three electrodes reache...  
WO/2015/018719A1
The invention relates to a spark gap arrangement (FSA) with a triggerable spark gap (TF) and a trigger circuit (TRG). The spark gap arrangement (FSA) further comprises a first and a second charge storage device (C1, C2), a voltage limiti...  
WO/2015/014248A1
A magnetoresistive current limiter, comprising a substrate (1), a magnetoresistive sensor layer (2), a first insulating layer, a coil (4), a second insulating layer, a magnetic shield layer (6), and an input electrode (8) and output elec...  
WO/2015/014551A1
The invention relates to an overvoltage protection circuit (1) for a first sub-system (T1) of a multi-voltage vehicle electrical system (100). The multi-voltage vehicle electrical system comprises the first sub-system (T1) having a first...  
WO/2015/015831A1
Provided is a current-limiting reactor device with which the ratio of the increase in the fault current can be suppressed without increasing the process energy of a surge absorber possessed by a direct current breaker installed in a dire...  
WO/2014/195395A3
Commonly, a transient protection filter circuit is integrated between power sources and the circuits that follow to suppress voltage transients. Pre-existing transient protection filters are implemented such that when a transient is dete...  
WO/2015/012193A1
An objective of the present invention is to provide a protection device whereby it is possible to provide appropriate protection against excess current and anomalously high temperatures, with a large holding current and no mechanical con...  

Matches 701 - 750 out of 13,138