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WO/2015/120898A1 |
The invention relates to a method for generating a resonance signal indicating the presence of a ferroresonant oscillation in an electrical system (10), in which digital measured voltage values are detected, which indicate a voltage pres...
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WO/2015/123059A1 |
An apparatus to support a substrate may include a base and an insulator portion adjacent to the base and configured to support a surface of the substrate. The apparatus may also include an electrode system to apply a clamping voltage to ...
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WO/2015/122982A1 |
A low voltage arc flash switch (4;84;134) includes a sealed housing (8) and gas insulation (10) within the sealed housing. A plurality of conductors (12) include a number of gaps (14) therebetween within the sealed housing. A triggering ...
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WO/2015/121716A1 |
A lighting system comprising a string of light sources (L) connected in series between a first terminal (106) and a second terminal (GND), wherein at 5 least one electrical contact of the string of light sources (L) is accessible. The sy...
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WO/2015/119971A1 |
Systems and methods for conditioning a power rail (230) (e.g., reducing voltage droops and/or voltage overshoots on the power rail) are described herein. In one embodiment, a power circuit comprises a capacitor (215) coupled to a high-vo...
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WO/2015/115285A1 |
Disclosed is a power reception apparatus that is provided with: a power reception unit that receives power supplied from a power supply apparatus in a non-contact manner; a protection circuit unit that changes a power reception voltage o...
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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...
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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...
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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...
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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...
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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...
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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...
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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)...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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