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WO/2000/010203A1 |
The present invention sets forth a new device comprising a PTC, and a transitor in direct physical contact with the PTC. The PTC has a first surface and a second surface wherein at least one of the surfaces is substantially flat. Prefera...
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WO/2000/010249A1 |
The present invention provides an electronic circuit with adjustable delay time for turning on or off an application device or an electronic load. The electronic circuit according to the present invention comprises a switch element for c...
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WO/2000/009813A1 |
An energy absorbing system with one or more energy absorbing assemblies is provided to reduce or eliminate the severity of a collision between a moving motor vehicle and a roadside hazard. The energy absorbing system may be installed adj...
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WO/2000/008747A1 |
The present invention relates to a controlled rectifier bridge for a generator comprising several phase windings and an excitation winding, wherein said rectifier bridge is made in the form of an automatic rectifier bridge with field-eff...
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WO/2000/007273A1 |
Resistors (10) are switched between the operating voltage (4) and the primary winding (2) of the transformer (1) in order to prevent the inrush peak when energizing a transformer (1). A test winding (14) on the secondary side (3) of the ...
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WO/2000/007272A1 |
When energizing a capacitive load (1), current peaks occur which can, for example, lead to the fusion of contacts of contactors (4, 10, 20). A circuit for limiting the making current comprises thermistors (40) which are provided for redu...
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WO/2000/005798A1 |
A surge protector for portable personal computers, or notebooks, of the shunting type, employs two differently rated metal oxide varistors in a manner enabling operation with several differently rated AC power services. The surge protect...
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WO/1999/067863A1 |
An apparatus (300) for providing independent over-current protection to a plurality of electrical devices and a transient-voltage suppression system employing the apparatus. In one embodiment, the apparatus includes a non-conductive body...
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WO/1999/067864A1 |
A device for protection of an electrical object (2) comprises an electric connection member (10) coupled in parallel to the object, said connection member comprising an electrode gap which normally is electrically insulating. The connect...
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WO/1999/067867A1 |
A device for protecting, in a multiphase electric power plant, one or more objects (1) from over-currents, said objects being connected to an electric power network (5) or another equipment contained in the electric power plant, said dev...
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WO/1999/067857A1 |
A device for switching electrical effects comprises at least one electric switching arrangement (5). This arrangement comprises at least one switching element (6) presenting at least one electrode gap (15). This gap is convertible betwee...
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WO/1999/067865A1 |
A device for protecting, in a multiphase electric power plant for alternating voltage, one or more objects from over-currents and/or over-voltages, said objects being connected to an electric power network or another equipment comprised ...
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WO/1999/066618A1 |
A device for protecting, in a multiphase electric power plant, one or more objects (1) from over-currents, said objects being connected to an electric power network (5) or another equipment comprised in the electric power plant, said dev...
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WO/1999/066619A1 |
Circuitry is provided which increases the efficiency of electrostatic discharge (ESD) power supply clamping circuitry to sink larger currents during an ESD event on a power supply node. Voltage clamp circuits capable of providing ESD pro...
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WO/1999/063638A1 |
A modular terminal block (14) for connection between an electrical distribution system and the processing circuitry (26) of a protective relay. The terminal block includes multiple tiers (18), each of which is provided with a set of term...
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WO/1999/062158A1 |
A surge protector circuit and method of protecting electronic equipment which do not load down a circuit at high frequencies and do not degrade a signal in high speed data transmission. A gas tube (2) is connected in parallel with low ca...
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WO/1999/060539A1 |
A fault protective device (48) for limiting maximum current and voltage, applicable to electronic components and wiring (26, 30) located in the fuel tank (10) of an aircraft. Particularly, a fuel gauging system (18) circuit extends from ...
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WO/1999/059224A2 |
A light socket (100) is disclosed that has a built-in integrated circuit (50) for rectifying the alternating current (150) received from an electrical outlet and limiting the direct current produced. The light socket (100) is specificall...
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WO/1999/056258A1 |
A lightweight, self-contained, portable, intrinsically-safe warning device for providing warning to personnel of an unsafe condition is provided. This warning device is especially adapted for attachment to the roof of a mine to indicate ...
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WO/1999/056373A1 |
The invention pertains to an advantageous inrush current limiting protection circuit to sense a current, switch on the current (I) in a delayed manner when the protection circuit is switched on and to shut off the current in a delayed ma...
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WO/1999/056374A1 |
The present invention provides a protection system that prevents a rechargeable battery from being overcharged into a dangerous operating mode. The protection system may generally be used as a backup system in conjunction with a smart el...
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WO/1999/056292A1 |
A protective containment apparatus for preventing damage to expensive components of an assembly due to the failure of an electronic component in a nearby potted circuit which is known to fail catastrophically. The containment aparatus ca...
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WO/1999/054982A1 |
A polarity reversal protection circuit comprising a freewheeling diode (18) that is parallel connected to the load (14) and series connected with respect to a semiconductor switch (30). The semiconductor switch (30) is switched on when a...
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WO/1999/054980A1 |
The invention relates to an interference suppression module (2) comprising an attenuation circuit (27) in order to attenuate an overvoltage pertaining to a consumer (22) connected to a multiphase network (L1, L2, L3) by means of a switch...
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WO/1999/053590A1 |
A direct grounding system prevents the instantaneous voltage drop known as the problem with the conventional grounding system, while utilizing the advantages of conventional direct grounding system. An inventive direct grounding system c...
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WO/1999/053591A1 |
The invention relates to a method and device for suppressing over-voltages. According to the invention, a switching means and a consumer are connected in series between a first and a second terminal of a voltage source. The switching mea...
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WO/1999/050860A1 |
A power distribution network including a voltage support transformer (1A,B) is disclosed which uses the fault current from a line (A or B) of the power distribution network in which a fault condition exists to support or stabilize the vo...
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WO1999010897A9 |
To overcome the problem associated with surge arresters that failure of the arrester can be a fire hazard if sparks and/or incandescent particles are emitted by the failed arrester, the invention proposes to provide an arc gap in paralle...
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WO/1999/046842A1 |
The invention relates to a protective circuit inserted between an input terminal (RVB) and a line (LI). The signal of the input terminal (RVB) is applied on the basis of a bipolar amplifier transistor (T2) which is connected to a head lo...
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WO/1999/045621A1 |
The invention relates to a field bus system with a field bus distributor (11) to be mounted in an area endangered by explosions (1) to feed a plurality of field equipment (121 to 12n) arranged in an area endangered by explosions (1) thro...
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WO/1999/045553A1 |
High arc currents provoking strong contact erosion in the switching element (3) occur in existing direct current magnet systems when switching from starting excitation to non-drop-out excitation. In order to avoid said inconvenient, a ca...
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WO/1999/045622A1 |
The invention relates to an arrangement and method for limiting current, comprising a superconductive transformer arrangement in an electric circuit allowing the nominal current to be conducted without any loss, independently of the mann...
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WO/1999/044255A1 |
A lithium battery pack (100) comprises a battery cell (102) and a safety circuit (104). The safety circuit prevents overcharge and overdischarge of the battery cell. The safety circuit comprises a battery control IC (106) which senses th...
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WO/1999/040665A1 |
In a system comprising a cabinet (2) functional units (6) have to be inserted without switching off the power supply (4). Without precautions damage to the functional unit can arise by the hot insertion. One potential cause of damage is ...
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WO/1999/040666A1 |
A device for suppressing interferences at current interfaces, in particular in an airbag system, between a transmitter and a receiver connected to the transmitter by connection lines, the transmitter and receiver each have a non-linear l...
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WO/1999/039400A1 |
A protection circuit (100) and protection device (300) for protecting a rechargeable (lithium-based) battery cell or cells from overcharging. A voltage regulator element (110, 310) is connected in parrallel with the battery cell or cells...
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WO/1999/039421A1 |
A protection device (100) for protecting a device, such as a rechargeable battery (5), from overcharging or transient power conditions. The protection device comprises a switch protection circuit (105) consisting of a zener diode (110) a...
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WO/1999/037008A1 |
The present invention relates to a passive electronic component architecture (10) employed in conjunction with various dielectric (16) and combinations of dielectric materials to provide one or more differential and common mode filters (...
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WO/1999/037007A1 |
A power conditioning circuit for conditioning power supplied by a power source at a nominal frequency over line, neutral and ground conductors includes first, second and third impedances coupled to the line, neutral and ground conductors...
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WO/1999/035742A1 |
An integrated circuit package having primary circuitry, an ESD protection device (14), a filter circuit (102), and a conductive lead (16) arranged to couple a point (V+) external to the integrated circuit package to a point (VF+) interna...
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WO/1999/035692A1 |
The invention concerns a monolithic component for protecting a line against surge voltages higher than a predetermined positive threshold or lower than a predetermined negative threshold, comprising in antiparallel a thyristor with catho...
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WO/1999/034496A1 |
A device for over-voltage protection comprises at least one over-voltage diverting arrangement (1) provided to assume electrical conductivity upon presence of an over-voltage in order to reduce the over-voltage through a current diversio...
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WO/1999/033122A1 |
The inventive superconductor structure (10) for conducting an electrical current (I) in a predetermined direction has a metallic support (11) and at least one printed conductor (L). Said printed conductor has at least one insulating inte...
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WO/1999/033161A1 |
The invention relates to a method for influencing the electrical power of a load (10) with a pulse width modulated signal (13) which incorporates the specification of a continuous switch-on signal. According to the inventive method, the ...
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WO/1999/031692A1 |
A device for switching electric power comprising at least one electric switching arrangement. The latter comprises at least one first switch element (10) which represents an electrode gap. The latter is convertible between an electricall...
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WO/1999/031778A1 |
The invention concerns a protective device against excessive currents occurring in an electric circuit between a voltage source (2) and a load (3) mounted downstream of said device, comprising first triggering means (7) with high current...
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WO/1999/029006A1 |
A fault current limiter (4) for a power system having an electrical current carrying path (3), comprising a superconducting device (6), for disposition in the current carrying path (3), which has superconductor means exhibiting supercond...
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WO/1999/029007A1 |
The invention concerns a device for pre-loading an electric power system of a vehicle with electric drive. The electric system comprises a storage battery (3), a main contactor (7), a monitoring system (15), and power elements constituti...
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WO/1999/025050A1 |
The invention relates to a current limiting device for combinational circuits, especially low and medium voltage, for electricity supply systems and power distribution. The current limiting device is formed by a current limitation elemen...
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WO/1999/025032A1 |
The invention relates to a current limiting device for combinational circuits, especially low and medium voltage, for electricity supply systems and power distribution. The current limiting device is formed by a plate conductor element (...
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