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Matches 801 - 850 out of 12,865

Document Document Title
WO/2011/038969A3
The invention relates to a free-wheeling circuit for the rapid reduction of a shutdown overvoltage of an inductive load (1) when the latter is shut down. The free-wheeling circuit comprises a switching threshold component (11) by which t...  
WO/2012/038150A3
The invention relates to a method for adjusting a voltage of a DC intermediate circuit in a battery system composed of a battery and a drive system. The battery is connected to the drive system via the DC intermediate circuit and compris...  
WO/2013/052724A1
Input/output power and signal transfer and power and signal isolator device (101) using pulsed, alternating or high frequency signal current having a capacitive structure which provides power and signal limiting control, unidirectional p...  
WO/2013/052054A1
A system and method for providing symmetric, efficient bi-directional power flow and power conditioning for high-voltage applications. Embodiments include a system that comprises a first normally-on junction field-effect transistor (JFET...  
WO/2013/018072A3
An impedance emulator device (5-8, 15) which is variable in a controlled manner comprises an inductor (L) connected between a first and a second terminal (2, T), an ordered array (5) of solid-state electronic switches (Ql, Q2), connected...  
WO/2013/019284A3
A circuit interrupter, such as a GFCI or AFCI product, is provided having a suppression and protection circuit and circuit interrupter circuitry. In one configuration, a semiconductor device and a voltage clamping device or surge protect...  
WO/2013/017366A3
The invention relates to an over-voltage protection device for protecting a high-frequency connection from over-voltage. Over-voltages can be compensated for by a coil assembly (1) which consists of coils (L1, L2) electrically in series ...  
WO/2012/123014A3
A current-limitation system for limiting a current through an DC connection in case of a fault occurring in a DC grid of which the DC connection forms a part is provided, as well as a method of operating a current-limitation system for l...  
WO/2013/041309A1
The invention relates to an airworthy CAN bus system having a plurality of subscribers which are networked to one another by a CAN bus having dual redundancy and are able to interchange data, wherein a bus master polls the other bus subs...  
WO/2013/037589A1
The invention relates to a direct current circuit breaker (100) with a first to fifth node, wherein • - a first breaker (110) is arranged between the first node (101) and the fourth node (104), • - a second breaker (120) is arranged ...  
WO/2013/036696A1
In the field of motor protection for industrial automation systems, HVAC systems, pumping systems, and/or similar implementations, improved motor starters and overload electronics (104) can be configured to offer substantially automatic ...  
WO/2013/036670A1
Starter apparatuses are provided for multiple-winding motors. Such starters can function with a single/combined overload device/circuit, rather than requiring multiple overloads relays and separate overload trip circuits for each motor w...  
WO/2013/027121A1
A circuit is disclosed that includes a transistor configured to control energy entering into the circuit from a power supply. A capacitor is coupled to the transistor to store the energy that enters the circuit, and a protection circuit ...  
WO/2013/027118A1
Aspects of the disclosure provide a circuit. The circuit includes a depletion mode transistor coupled to a power supply and a current path coupled with the depletion mode transistor in series to provide a current to charge a capacitor. T...  
WO/2013/024462A1
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/2013/025117A1
The automatic control panel (ACP) relates to systems for automatically controlling technical equipment in power engineering, in transport, and in various sectors of industry, housing and communal services and agriculture and can be used ...  
WO/2013/020853A1
A circuit assembly for protecting against electrostatic discharges comprises a shunting device (ECL), which is suitable for shunting an electrostatic discharge between a first connection contact (IO) and a second connection contact (VDD,...  
WO/2013/017159A1
A current limiter (10) comprises a plurality of electrically conductive wires (12,14) shaped to define two or more primary coils (18, 20), the primary coils (18, 20) being connected in parallel; and at least one electrically superconduct...  
WO/2013/019284A2
A circuit interrupter, such as a GFCI or AFCI product, is provided having a suppression and protection circuit and circuit interrupter circuitry. In one configuration, a semiconductor device and a voltage clamping device or surge protect...  
WO/2013/018972A1
An over-current protection device of a second battery includes a main relay, an auxiliary relay connected to the main relay in parallel, and a controller, which protects a battery module by detecting a current restriction resistance and ...  
WO/2013/018072A2
An impedance emulator device (5-8, 15) which is variable in a controlled manner comprises an inductor (L) connected between a first and a second terminal (2, T), an ordered array (5) of solid-state electronic switches (Ql, Q2), connected...  
WO/2013/017110A1
An embodiment high efficiency power regulator comprises a three-terminal converter and a protection device. The three-terminal converter comprises a first terminal coupled to a positive terminal of an input voltage bus, a second terminal...  
WO/2013/014351A1
The invention relates to system for monitoring a rectifier (RED) to be connected to a polyphase power grid (RTR) in order to charge an electric battery (BAT) of an automobile, said rectifier (RED) including a switching means (MSWI) for r...  
WO/2012/130477A3
The invention relates to a surge protection device (SPD) having an input (IN) and an output (OUT). Between the input (IN) and the output (OUT), the surge protection device (SPD) comprises a main current path (CP1) that is short-circuit p...  
WO/2013/011913A1
In the present invention, a main switch circuit (13) is provided between a power line (PL), to which an output voltage of a solar cell (11) is applied, and a battery unit (12). A protection circuit (19) turns the main switch circuit (13)...  
WO/2013/007134A1
The present utility model relates to a short-circuit current limiting and protection device for an electrical circuit, which overcomes the deficiencies when a conventional short-circuit protection device is used in a multi-group electric...  
WO/2013/008152A1
Dislcosed is a surge protection device (10, 110) for an outdoor lighting fixture that includes a live connection (23A, 123A), a neutral connection (23B, 123B), and a ground connection (23C, 123C). A first varistor (42) and a second varis...  
WO/2012/093177A3
Disclosed is a semiconductor device arrangement including a first semiconductor device having a load path, and a plurality of second transistors, each having a load path between a first and a second load terminal and a control terminal. ...  
WO/2013/000361A1
Disclosed is an overvoltage protection module for a DC circuit, including a thermal cutoff fuse, a metal oxide varistor, and a gas discharge tube. The thermal cutoff fuse, metal oxide varistor, and gas discharge tube are connected in ser...  
WO/2013/002016A1
The present invention relates to a power conversion device including an inverter for, by using semiconductor switches (4), converting the voltage of a DC power supply (2) to an AC voltage having arbitrary magnitude and frequency to suppl...  
WO/2012/177425A1
An intrinsically safe portable radio device (100) having a portable radio device housing (120). A first radio section (201) is an intrinsically safe circuit is (ISC) disposed within the housing and arranged to perform at least one functi...  
WO/2012/171995A1
The present invention relates to a fast bypass device (1), comprising a pair of reverse-parallel-connected thyristors (T1, T2), a lightning arrester (SA) and a backup protection switch (BPS), wherein the pair of reverse-parallel-connecte...  
WO/2012/171221A1
A thermal metal oxide varistor circuit protection device includes a housing (15) defining a cavity and a metal oxide varistor (MOV) (50) disposed within the cavity. The circuit protection device may further includes a first terminal (301...  
WO/2012/171891A1
Disclosed in the present utility model is a triggering circuit for a thyristor, comprising a first resistance and a breakover diode for connecting in series between the anode and gate of a thyristor. Also disclosed in the present utility...  
WO/2012/170345A1
A superconducting fault current limiter recovery system includes a superconducting fault current limiter, a shunt electrically coupled in parallel with the superconducting fault current limiter, and a bypass path also electrically couple...  
WO/2012/163150A1
A lightning protection system (30), comprising: an active lightning protection unit (301) and a passive lightning protection unit (302); the input end of a lightning protection circuit (3011) in the active lightning protection unit is co...  
WO/2012/163398A1
The present invention relates to a system for distributing electric power to an electrical grid (106). The system comprises a DC/AC inverter (102) arranged to convert a DC voltage output from an electric power generator (101) to an AC vo...  
WO/2012/166374A1
A surge protection device that includes varistors to absorb surge currents and protect a load from an overvoltage condition. The surge protection device includes a combination of switching elements and diodes. The surge protection device...  
WO/2012/159668A1
The invention concerns a voltage source converter comprising a number of voltage source converter cells and a method of controlling start up of a cell-based voltage source converter. The voltage source converter comprises a number of vol...  
WO/2012/159358A1
Disclosed is a lightning protection radio remote unit (RRU), including a primary circuit and a secondary circuit and a working circuit, wherein the primary and secondary circuits convert the power source outputted by a power supply syste...  
WO/2012/161830A1
An overcurrent protection system (102) may be used to protect electrical circuit components from damage or failure due to abnormally high currents. The system may include a current interrupter (110) electrically coupled between a power s...  
WO/2012/159626A1
The invention relates to a plug connector for protecting an electrical system, in particular an electronic apparatus, a semiconductor element or wiring harness, against surge discharge, wherein the plug connector comprises contact pins t...  
WO/2012/161615A1
The invention relates to the field of electrical engineering and in particular to lightning protection means for high-voltage overhead electrical transmission lines (OL). The technical result of the invention consists in increasing the r...  
WO/2012/161277A1
This superconducting element for a superconducting current limiter has: a substrate (32); an intermediate layer (34) formed on the substrate (32); a superconducting layer (36) formed on the intermediate layer (34); and an electrode (44) ...  
WO/2012/157494A1
Provided is a fault current limiter that uses a superconductor and that, after a fault current limiting operation, can rapidly revert to a superconducting state. The fault current limiter carries out fault current limiting operations usi...  
WO/2012/156406A1
The invention relates to a method and a system for controlling the turn-on time of a device that includes a magnetic circuit and a conductive winding. Said method includes the steps of: acquiring a measurement of the magnetic field, gene...  
WO/2012/154134A1
The invention belongs to the field of overvoltage protection devices intended to protect sensitive electric/electronic devices and assemblies against effects of increased voltages, more precisely to the field of overvoltage protective de...  
WO/2012/152111A1
A surge protection equipment comprises a surge protection module and a base (104). The surge protection module is inserted onto the base. A fault protection disconnecting equipment (105) is arranged in the surge protection module. The su...  
WO/2012/093042A3
A coil (12, 112, 212) is described, the coil (12, 112, 212) comprising an electrically conducting element (18, 118, 218) defining a plurality of first turns (20, 120, 220) around a first axis (X1, X101, X201), wherein at least two first ...  
WO/2012/114289A3
An electric equipment protection device includes a first conducting line (105) and a second conducting line (106), connectable to a power source (2) to receive a supply voltage (VDC) of a rated value (VNOM); at least one varistor (108), ...  

Matches 801 - 850 out of 12,865