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WO/2001/016975A1 |
A method for controlling the closing operation of a switching device, which is disposed on an electrical network connected to an inductive component, comprising the following steps: acquiring first data related to the electrical characte...
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WO/2001/017087A1 |
The invention relates to a protection circuit for a series connection consisting of low-side switches and an inductive user. A power field-effect transistor representing a low-side switch can be controlled by a control circuit according ...
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WO/2001/015298A1 |
A base power feed integral surge and spike protector (10) for use in a building having modular office cubicles (14) includes a protective module including a circuit board having a plurality of protective circuits, with each of the protec...
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WO/2001/010692A1 |
A system and method are provided for controlling an anti-lock braking system (ABS) in a motor vehicle where the ABS is performed by an electronic braking system (EBS) which includes a pulse width modulating (PWM) drive circuit connected ...
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WO/2001/008389A1 |
A surge reset circuit (200) used to automatically reset a surge protection circuit within a telephone line interface circuit. A sensor (300) (e.g., a zenering device) advantageously generates a voltage level representing current draining...
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WO/2001/003267A1 |
The invention relates to a protective device for capacitors (4 to 10) which are subjected to high-frequency voltages that are higher in relation to those under normal operating conditions, in particular, in a voltage range which lies sig...
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WO/2001/001538A1 |
The invention relates to a protective circuit with a current sensor (2) and a switch element (3) that is connected in series with a safety coil (1). Said safety coil (1) and said current sensor (2) are encircled by a recovery diode (4). ...
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WO/2001/001539A1 |
A line protector is provided which includes positive temperature coefficient resistors in the circuit which are thermally coupled to voltage clamping devices which require protection from failures caused by overheating from conducting ex...
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WO/2000/079666A1 |
The invention relates to an apparatus for limiting an electrical current by using a PTC resistor being monitored by a monitor circuit. According to the invention, the monitor circuit issues a signal only after detecting the status of the...
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WO/2000/079681A1 |
A load control circuit (36) having an overload circuit capable of protecting a switching element (26) from overload conditions over a wide range of operating conditions. The overload circuit limits the maximum average power dissipation o...
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WO/2000/079665A1 |
The invention relates to an electrical monitor circuit in which star points of taps on a first and a second side of a three-phase current limiting device are voltage compared. Possible applications are combinations with electrical switch...
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WO/2000/079668A1 |
Disclosed is a high voltage transient surge suppression system (1) which provides a fusing to greatly reduce or eliminate the chance of secondary combustion during an excess power situation. The invention (1) having a fuse link system wh...
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WO/2000/076048A1 |
The invention relates to a current limiting device comprising a high temperature supraconductor which is accommodated in a cryostat filled with liquid nitrogen, whereby the current limiting device is connected in series to a switching un...
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WO/2000/074197A1 |
The present invention relates to a multi-functional energy conditioner (10) having architecture employed in conjunction with various dielectric and combinations of dielectric materials to provide one or more differential and common mode ...
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WO/2000/072332A1 |
A junction box includes an array (10) of conductive polymer positive temperature coefficient (PTC) devices (12) formed from a laminate of a layer of conductive polymer PTC material (14) between first and second metal foil layers (16, 18)...
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WO/2000/072338A1 |
The present invention relates to an active booster transformer system with a booster transformer core (S, 10, 17) of the type which is applied around an electrical cable (K, 1, 13) for reducing stray currents and in which the booster tra...
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WO/2000/070631A2 |
By a method and a superconducting cable for overcurrent protection, a current detector comprising a circuit breaker or a current limiter is inserted in series with the superconducting cable, which current detector can be constituted by a...
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WO/2000/069044A1 |
A 0-10V dimming interface protection circuit generating an indication that line voltage is applied across first and second leads of the dimming interface controlling light output by a lamp, includes a first device for limiting current se...
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WO/2000/064024A1 |
A downhole electronic protection apparatus is described for protecting electronic circuitry permanently located inside oil and/or gas wells. In one embodiment a suitable protection device into every branch supply line from the common sha...
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WO/2000/064023A1 |
The invention relates to an advantageous inrush current limiting protection circuit for sensing a current, switching on the current (I) after a delay when the electric apparatus, such as a telecommunications apparatus, is turned on, and ...
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WO/2000/062394A1 |
The invention relates to a safety barrier for limiting the current and voltage of an electrical consumer (15) connected downstream thereof. The safety barrier comprises an input terminal (8) and an output terminal (16) and an input and o...
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WO/2000/062393A1 |
The invention relates to a protective circuit for an electronic device. Said protective circuit is located between a DC source (U¿v?) and the circuit voltage input of the device (G). The protective circuit consists of the serial connect...
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WO/2000/057493A2 |
An elongated composite material (60) for current limiting applications is disclosed comprising one more high-temperature superconductor filaments (52) and a second electrically conductive matrix (54) member, which may include a sheath of...
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WO/2000/054061A1 |
An overvoltage and transient protection circuit with extended bandwidth is provided for the protection of a low voltage test signal path (210) such as a test signal path in a multimeter. The disclosed circuit maintains the integrity of a...
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WO/2000/054386A1 |
A surge suppressor which provides overvoltage protection for AC power lines, coaxial transmission lines and communication lines using a virtual ground rather than a separate ground conductor.
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WO/2000/052804A1 |
The circuit S provides that the making current of an electrical load EL is increased up to a nominal current when energizing said electrical load EL which is configured, for example, as an electrical unit BE. In addition, a limited curre...
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WO/2000/051218A1 |
Current sensing circuits having independently adjustable dual-level trip thresholds for use in hot swap controllers, solid state circuit breakers and other current sensing circuits. The dual-level trip threshold is user-programmable to p...
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WO/2000/048285A1 |
The invention concerns a lightning arrestor device for protecting an installation (3) powered by an electric transmission line (1). Said device consists of at least two assemblies connected in parallel between the line terminals and comp...
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WO/2000/046829A1 |
The invention relates to a self-recovering current-limiting device with liquid metal. The device contains a first electrode and a second electrode (11; 12) and several compressor chambers (3) which are partially filled with liquid metal ...
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WO/2000/045493A1 |
The invention relates to a current limiter for limiting the overcurrent in power generation systems and transmission systems to a given limit. Said current limiter consists of inductors and controllable, electric valves, e.g. thyristors....
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WO/2000/039811A1 |
In general terms, the present invention relates to an electrical power transmission system using superconductors which is compatible with conventional transmission systems. In a first aspect, the present invention relates to a method for...
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WO/2000/038292A1 |
The invention relates to an electric protective device which includes a current limiter (101). The current limiter is arranged to be activated if a predetermined current level above normal current level is reached. According to the inven...
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WO/2000/038293A1 |
The invention relates to a circuit system comprising a bridge rectifier which in each bridge branch has a Zener diode (1, ... 4) whose Zener voltage is set such that the initial voltage of the bridge rectifier does not exceed a defined m...
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WO/2000/035026A1 |
According to the invention, a current-limiting device (2) contains at least one printed conductor (4) with high T¿c? superconductive material on a support element (3). The printed conductor should be provided with an outer layer (5) for...
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WO/2000/031852A1 |
Surge suppressor apparatus comprising AC power line overvoltage protection, telephone voice line overvoltage and overcurrent protection, high speed data line overvoltage and overcurrent protection and coaxial transmission line overvoltag...
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WO/2000/031851A1 |
A current limiting device for connection in use between an AC mains power source and a load. The unit has a controllable semi-conductor device Q3 in the current carrying path between the source and the load. Also in the path is a sensing...
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WO/2000/030127A1 |
An electronic device includes two or more conductive polymer layers sandwiched between two external electrodes and one or more internal electrodes. A three-layer device is manufactured by: (1) providing a first laminated substructure com...
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WO/2000/027017A1 |
The invention relates to a frequency converter (1) having a current-compensated inductor (18) which is situated in a direct voltage intermediate circuit (5) and which comprises a magnetic core (19) made of a nanocrystalline material. The...
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WO/2000/024105A1 |
The present invention provides a circuit protection device for protecting an electrical load (20). The device comprises a three-terminal switch-element (10) having first, second and third terminals, the first terminal for series connecti...
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WO/2000/024126A1 |
The present invention provides a circuit protection device that has a reduced size and weight and is particularly suitable for use, for example, in portable electronic devices and high density electronic circuits. According to one embodi...
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WO/2000/022500A1 |
Protection of electronics contained in COTS equipment against the effects of latch-up caused by solar radiation, a nuclear explosion, electromagnetic induction or supply voltage fluctuations. To this effect, the supply currents are, in a...
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WO/2000/022721A1 |
The invention relates to a filtering device (100) for filtering out supply voltage interferences of a voltage source supplying a supply voltage for an electric consumer. Said device comprises a capacitor (18) which establishes a connecti...
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WO/2000/021176A1 |
The invention disclosed here relates to a method and arrangement for limiting the starting current in a switching power supply. As the operating voltage is switched on in the power supply an uncharged capacitor (C¿1?) in the power suppl...
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WO/2000/019573A1 |
The invention relates to a protective circuit that is connected to the pad of an integrated circuit. The protective circuit comprises a threshold detector that derives a threshold voltage from the voltage on the pad. The threshold voltag...
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WO/2000/019778A1 |
The invention concerns a circuit for controlling a load (1) to be supplied in alternating current voltage, comprising a two-way switch (2) capable of being controlled by phase angle, in series with the load between two terminals (E1, E2)...
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WO/2000/016429A1 |
the present invention relates to an over-discharge preventing circuit, especially an over-discharge over-current preventing circuit, and more specifically relates to an over-current preventing circuit preventing circuit comprising an ove...
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WO/2000/013279A1 |
The specified voltage selection or the actual voltage selection for a control unit provided for generating control signals for the actuator of an electronic fuse is altered by a pilot control device in such a way that the actuator is not...
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WO/2000/013473A1 |
An electrical component assembly includes a first printed circuit board (PCB) having a plurality of first-PCB conductive paths communicating with the surface of the first PCB, the assembly also includes at least one additional PCB having...
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WO/2000/011758A1 |
The present invention relates to an explosion-proof plug-in connector (1) comprising two tabs (2, 3) which enable a current to flow from a power supply to a user when they are plugged in. A switching device (4) is provided between one co...
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WO/2000/011785A1 |
The invention relates to a control circuit for inductive loads (ZL), comprising a semiconductor switch (T1) for connecting the load to an operating voltage (Vbb) and disconnecting the load from said voltage, in addition to a decommutatio...
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