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Matches 551 - 600 out of 12,865

Document Document Title
WO/2015/162616A1
A fault current limiter is provided that comprises a fault current limiter comprising first, second and third magnetically saturable cores. The fault current limiter comprises a magnetic biasing arrangement arranged to produce a first ma...  
WO/2014/186577A3
An active transient voltage suppression device is disclosed which may utilize an activation network to turn on a semiconductor switch. The activation network may be triggered based on the rate of change of voltage on the protected input ...  
WO/2015/164445A1
Described is an apparatus and method for controlling current in a printed circuit board due to a surge or electrostatic discharge. The apparatus (300) includes a first interface (320, 325, 330, 370) providing a first signal to a main con...  
WO/2015/162253A1
The invention relates to a docking module (22) for a current transformer (10) comprising: − an electronic circuit (12) and − at least one electric connecting element (28.3) for electrically coupling the circuit (12) to the current tr...  
WO/2015/154817A1
A method and a current control circuit 100 therefor. The method for a current control circuit 100 comprising determining 201 a state of the current control circuit 100, select 202 a first mode of operation 203 if the determined state is ...  
WO/2015/157527A1
A Power Over Data Lines (PoDL) system includes Power Sourcing Equipment (32) supplying DC power and Ethernet data over a single twisted wire pair (14) to a Powered Device (PD). The PSE (32) supplies the DC current (34) and AC data throug...  
WO/2015/149210A1
An LED lamp panel, a high-voltage pulse protection circuit of the LED lamp panel and an LED lamp are disclosed. The LED lamp comprises a lamp holder, an insulating base, an LED driving power supply (10), a metal heat-dissipation shell (2...  
WO/2015/145006A1
The invention relates to a voltage stabilisation system (S) for keeping a power supply voltage of a group of electronic components (1a...1n) of a vehicle on-board power grid stable during a phase of starting an engine of the vehicle, whi...  
WO/2015/145367A1
A lighting device includes: - an insulated metal substrate (10, 12, 14) with an electrically insulating layer (10) having first and second opposed faces, electrically conductive lines (14) on the first face of the electrically insulating...  
WO/2015/089126A3
A relay circuit (100) includes a power supply (14) to apply an AC input line voltage to the relay circuit, a relay coil (22) and at least one pair of contacts (24) actuated by the relay coil. A zero cross detection circuit (12) and a con...  
WO/2015/141119A1
The present invention addresses the problem of providing a load control device capable of controlling a surge current attributed to a lightning surge that flows to a switching part. This load control device (10) includes: a switching par...  
WO/2014/177874A3
A circuit breaker and method of controlling Direct Current is disclosed. The circuit breaker has a primary conduction path (202) comprising a positive temperature coefficient (PTC) device with a positive temperature coefficient of resist...  
WO/2015/132354A1
A control assembly (100) is disclosed for controlling an electrical power supply to a heating element(200). The assembly comprises a housing which is arranged to collectively house: • - a temperature sensor (106) for sensing the ambien...  
WO/2015/124885A1
A method for limiting current in an electrical circuit (10) having transmission wires for power transmission includes determining whether an unexpected operating condition exists along the transmission wires and limiting the current to p...  
WO/2015/124622A1
This application relates to methods and apparatus for fault protection in a DC power transmission network or grid (200) that aid in determining the location of a fault in the network. The method involves, in the event of a fault, control...  
WO/2015/125793A1
This inrush current suppression circuit suppresses an inrush current flowing to a load, and the load is provided with an input capacitor (10) connected to a power supply (1), and a pair of output terminals (3, 4), which are connected in ...  
WO/2015/121027A1
The invention relates to an overvoltage protection device with leakage current cutoff, having a parallel connection of a first current branch (I1) and a second current branch (I2), wherein the first current branch (I1) comprises a switch...  
WO/2015/122984A1
An electronic circuit (140) includes a number of sensors (142;144) structured to detect an arc flash (146) from an uncontrolled arcing fault, and a trigger circuit (148), responsive to the detected arc flash, structured to trigger a trig...  
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...  
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 ...  
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 ...  
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...  
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...  
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...  
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...  

Matches 551 - 600 out of 12,865