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Matches 701 - 750 out of 12,855

Document Document Title
WO/2014/082805A1
The present invention relates to an overvoltage protection device that can be adapted to a programmable automaton power supply, including a first detection and protection device capable of detecting a possible overvoltage at a first poin...  
WO/2014/083190A1
The invention relates to a switching device (1), particularly a protective switch, comprising a first contact gap (2) and a second contact gap (3) that each have break contacts (4), said switching device (1) comprising a switching mechan...  
WO/2014/079508A1
The invention discloses temporary load device (2) comprised in a subsea distribution bus (14) connecting a power load system (3) to electrical power supplied by an AC power supply (1) by means of at least one long cable (7). The subsea d...  
WO/2014/081234A1
The present invention relates to a combined overcurrent protection device for blocking a current and a voltage in abnormal conditions, and more specifically, to a complex overcurrent protection device for blocking a current and a voltage...  
WO/2014/079352A1
A power source protection circuit and a chip thereof. The power source protection circuit comprises a clamping circuit (1), a first transistor (M0) and a second transistor (M24). The clamping circuit is coupled between a power source (VD...  
WO/2014/081233A1
The present invention relates to a combined overcurrent protection device for blocking a current and a voltage in abnormal conditions, and more specifically, to a complex overcurrent protection device for blocking a current and a voltage...  
WO/2014/044542A3
The invention relates to a line arrester (1), comprising a discharge column (2), which can be fastened to an overhead line (3) so as to hang. The discharge column (2) can perform an oscillating movement. A corona ring (4) connected to th...  
WO/2014/075989A1
The invention relates to a protective circuit (12) for a current transformer (10) for preventing a secondary voltage (Us) on a secondary circuit (10.1) of the current transformer (10) exceeding a secondary voltage threshold. The protecti...  
WO/2014/075782A1
The subject matter of the invention is an ignition circuit (Z) for a series circuit comprising at least two spark gaps for limiting overvoltages with medium and high power, in particular overvoltages corresponding to the pulse shapes 8/2...  
WO/2014/075111A1
The present invention provides a system and method for an intrinsically safe device. An IS mobile device has a housing, a PCB, a plurality of fuse circuits on the PCB, and a plurality of operational components on the PCB. The IS device i...  
WO/2014/072027A1
The invention deals with a method and device for controlling the ignition of electric arc in the intercontact break of a disconnector during the operation of opening and closing the disconnector used in gas-insulated switchgear. The inve...  
WO/2014/071628A1
A surge protection device (100) having a short-circuit protection function, comprising a surge protection module (102) and a short-circuit current protection module (101).The surge protection module discharges and suppresses a surge curr...  
WO/2014/072300A1
A lightning protection component, comprising at least one main input (2.1) capable of transmitting a lightning signal, at least one main output (3.1) designed to be connected to a piece of equipment (T) to be protected from the lightning...  
WO/2014/067272A1
Embodiments of the present invention relate to a protective apparatus. The apparatus comprises a switching device and a first isolator; one end of the switching device is connected to a negative electrode of a power supply or is connecte...  
WO/2014/032631A3
The design of the triggering circuit (1) of the overvoltage protection connected in three poles to the spark gap (4) of the overvoltage protection, provided with input terminals I (2) and II (3), comprising an auxiliary electrode (7) of ...  
WO/2014/067903A1
The invention relates to an actuating circuit (10) for switchgear having: a switch element (S) for controlling the power supply to a coil (12) of an electromagnetic actuator of the switchgear connected in series to the switch element; a ...  
WO/2014/071294A1
A semiconductor controlled rectifier for an integrated circuit is disclosed. The semiconductor controlled rectifier comprises a first lightly doped region (100) having a first conductivity type (N) and a first heavily doped region (108) ...  
WO/2014/067831A1
The invention relates to a method and an arrangement for determining the direction of excess currents in energy supply systems with at least one local or transformer substation, which connects a medium-voltage system (1) and a low-voltag...  
WO/2014/063406A1
A same-time-sequence multi-pulse lightning protection box comprises a lightning protection module, a sampling circuit, a detection circuit, and a display panel connected in sequence. The sampling circuit comprises an EMC strong electroma...  
WO/2014/063666A2
The apparatus compensating ground fault currents (2) with controlled current sources (3, 3', 3") is, in the known method, connected between the phase conductors L1, L2, L3 of an n-phase distribution system (1 ) and site with earth potent...  
WO/2014/063276A1
A semiconductor device for electrostatic discharge protection includes a substrate, a first well and a second well formed in the substrate. The first and second wells are formed side by side, meeting at an interface, and have a first con...  
WO/2014/063499A1
A charging method for a converter of a flexible direct-current power transmission system. The flexible direct-current power transmission system comprises an active-end converter and an other-end converter which are connected by means of ...  
WO/2014/063362A1
A circuit protection device including a housing (15) defining a chamber (19) and a metal oxide varistor (MOV) stack (310) disposed within the chamber (19). A first spring (330a) is electrically attached at a first end to a first input te...  
WO/2014/058737A1
A crystal oscillator may be configured to limit crystal drive level in the crystal oscillator by clamping via a diode-resistor branch, voltage applied to a drain pad of the crystal oscillator. The crystal oscillator may incorporate Pierc...  
WO/2013/109138A3
The present invention relates to protection circuit for power amplifiers and more particularly to a thermal sensor and transient protection circuit (10) integrated as one circuit for use in a Power Amplifier.  
WO/2014/055959A1
Electrostatic discharge protection for Class D power amplifiers is disclosed. In an exemplary embodiment, an apparatus includes an amplifier having an output transistor coupled to an interface pad, a snapback supply clamp coupled across ...  
WO/2013/024462A8
A fault current limiter is provided that comprises a magnetically saturable core. The first core includes a first leg, a second leg, with a first AC coil wound on the second leg, a third leg, with a second AC coil wound around the third ...  
WO/2014/047409A1
A voltage limiting device for limiting the voltage being transferred from a trunk circuit to a spur circuit of a distributed control network includes an AC signal device that passes the AC data signals between the trunk circuit and the s...  
WO/2014/046899A1
A surge protection apparatus for a power cable assembly is disclosed. The surge protection apparatus is located in-line with the power cable and may be integrated into or be a separate component from the power cable assembly and provide ...  
WO/2014/044542A2
The invention relates to a line arrester (1), comprising a discharge column (2), which can be fastened to an overhead line (3) so as to hang. The discharge column (2) can perform an oscillating movement. A corona ring (4) connected to th...  
WO/2014/032965A1
A protection circuit (10) comprises a terminal (11), a reference potential terminal (12) and a protective structure (13) which is arranged between the terminal (11) and the reference potential terminal (12) and is designed to conduct in ...  
WO/2013/109681A3
Monitoring of a core logic internal voltage regulator output is performed to detect, alarm and put an integrated circuit device into a safe mode when the voltage on the core logic exceeds a safe operating voltage value. This allows putti...  
WO/2014/028979A1
An electrical protection device for a load having an external conductive surface; two input terminals connecting to active and neutral conductors; two output terminals connecting to the load, the load drawing a load current; a first moni...  
WO/2014/029542A1
A switching device (28) comprising a primary switching block (30) including at least one semiconductor switch (34); and a switching control unit (32) to control the switching of the or each semiconductor switch (34). The switching device...  
WO/2014/023116A1
A lightning filter and electronic equipment are provided. The lightning filter (1) comprises: an inductor connected in series with the transmission line inlet wire of a protected load circuit (2); and a non-linear voltage limiting elemen...  
WO/2014/021773A1
The invention concerns a device comprising a controllable grounding transformer (1 ) arranged to compensate for a residual operating current in grounding of an alternating- current network having a power transformer (3). A primary windin...  
WO/2014/019677A1
The invention relates to a reliable device for protection of voltage transformers from ferroresonant oscillation influences, with input terminals, power supply module, control unit, switching element and burden resistor. In order to enha...  
WO/2014/014733A1
An implantable medical device can include an integrated circuit comprising an electrostatic discharge (ESD) protection circuit. The ESD protection circuit can include an active circuit, a first passive circuit, and a second passive circu...  
WO/2014/007647A1
The invention provides a power surge protection apparatus which includes at least one large capacitor used within a surge protection circuit associated with an electrical load to be protected. This large capacitor or capacitors are arran...  
WO/2014/005747A1
The invention relates to an encapsulated surge protection device capable of carrying lightning currents and limiting follow currents and comprising at least one spark gap, which has in each case at least two main electrodes and one auxil...  
WO/2013/167089A3
A high-voltage protection circuit comprising: a main relay (K1), an auxiliary relay (K2), a first resistor (R1), a second resistor (R2), a first capacitor (C1) and a second capacitor (C2); one end of the main relay (K1) is connected to t...  
WO/2013/189314A1
A protection circuit of a communication interface comprises: a first-level protection circuit, a second-level protection circuit and a third-level protection circuit that are sequentially connected, wherein the first-level protection cir...  
WO/2013/189152A1
Provided are an electrostatic discharge protection circuit, an array substrate, and a display device, which are applicable to the field of display technologies and are capable of reducing a power consumption while improving reliability o...  
WO/2013/187293A1
The purpose of the invention is to improve the reliability of an ESD protection device having a plurality of discharge parts. An ESD protection device (1), provided with a plurality of input electrodes (21a-21d) and a plurality of output...  
WO/2013/187994A1
A power clamp circuit having improved robustness to electrostatic discharge (ESD) events includes a voltage regulation circuit and a current controlled switch. The voltage regulation circuit and the current controlled switch may be used ...  
WO/2013/176984A1
An electrostatic discharge (ESD) device implemented within a power domain to mitigate ESD events imparted from another power domain for reducing integrated circuit (IC) failures. A first power domain includes an interface where ESD event...  
WO/2013/174924A1
There are provided a load driver and a luminaire including the load driver. The load driver include a voltage limiting circuit including a first polar capacitor and a second polar capacitor connected in inverse series, which are connecte...  
WO/2013/174429A1
An apparatus (102; 202; 302; 502; 602; 702) for assisting or controlling the electric power transmission in a direct current power transmission system (802; 810; 830; 900) comprising at least one direct current transmission or distributi...  
WO/2013/167470A1
The invention concerns a device for protecting at least one electrical apparatus (2) against overvoltage generated by a lightning strike, the device comprising a connection socket (7) for connecting the device to a distribution socket (8...  
WO/2013/170270A1
A transient surge protector with discrete silicon avalanche diode arrays is closed. The transient surge protector comprises one or more pairs of stacks of discrete silicon avalanche diode arrays. Each diode array comprises three silicon ...  

Matches 701 - 750 out of 12,855