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WO/2001/080266A1 |
The invention relates to a controlling of micromechanical elements. Especially the invention relates to the controlling of the micromechanical switches. According to a method for controlling at least one micromechanical element a first c...
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WO/2001/069625A1 |
The invention relates to an electromagnetic switching device, in particular a contactor, comprising a switching device housing (2) and a plug-in module which can be inserted into the latter and which contains a coil form (12) for a coil....
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WO/2001/067610A1 |
The invention relates to a security switching device for securely switching on and off an electric consumer (84), especially an electrically driven machine, that has at least one first and one second electronic switching element (56, 58)...
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WO/2001/065578A1 |
The invention relates to a circuit subassembly (1, 1') that is secure in itself and is provided with two actuators (2, 3) connected in series and a secure control unit (4). The aim of the invention is to produce several trip circuits tha...
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WO/2001/065577A1 |
The invention relates to a safety switch device (10) with a first (12) and a second (14) input circuit breaker, the positions of which, redundant to each other, define an input side regulation value ($g(D)t). The safety switch device (10...
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WO/2001/063977A1 |
A control circuit for driving a plurality of electrical loads, one at a time, has a converter circuit for receiving a DMX compatible digital control signal and extracting a plurality of address bits therefrom. A decoder circuit receives ...
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WO/2001/060652A1 |
A relay fusion detector (10) which is mounted on an electric vehicle, wherein interposed between a power unit (12) consisting of a plurality of secondary batteries and a load circuit including an electric motor is a relay (14) for turnin...
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WO/2001/054152A1 |
A relay (70) includes contacts (73) residing within a glass tube (72). A coil (76) surrounding the tube (72) and a switch (66) are connected in parallel between two terminals (77) of the relay (70). A current source supplies a current to...
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WO/2001/052294A1 |
An inductive load driver (100) having an inductive load (L) and a bridge circuit (102) connected in parallel with the inductive load, wherein the bridge circuit (102) generates a current to the inductive load that rapidly rises.
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WO/2001/048776A1 |
Disclosed is a simple and cost-effective circuit arrangement for providing current by means of an inductive component which is impinged upon with the supply voltage using a switch element. The aim of the invention is to guarantee that th...
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WO/2001/048372A1 |
The invention concerns a method for powering a motor vehicle electric starting switch (10) which consists in feeding on an input circuit (T1, B, 20, 25) of the switch (10) an efficient powering signal (R1, R2, R3) with selected pattern. ...
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WO/2001/048775A1 |
A device for controlling the opening/closing operation of an electric switchgear in a power distribution network comprising a control unit, for controlling an electromagnetic actuator operatively connected to the movable contact of said ...
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WO/2001/041174A1 |
The invention provides that, in an electromagnetic switchgear, the travel-time behavior of the contact carrier (5) is measured using a magnetic field sensor (10). To this end, a microprocessor (16) evaluates the output signal of the magn...
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WO/2001/039229A1 |
The invention relates to a configuration comprising two switching contacts (a, b) connected in series and their two contactors (Sa, Sb). The tripping signals (1, 2) of said two contactors are generated with a variable time-delay ($g(D)t)...
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WO/2001/039228A1 |
The inventive switching device has a magnet system comprising a yoke (1), around whose limb (6) a measuring coil (5) is situated. The voltage induced in said measuring coil (5) is integrated in order to determine the magnetic flux. The m...
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WO/2001/037302A1 |
The invention relates to a safety switch device (10), for switching on and safely switching off an electrical user, in particular, an electrically-driven machine (34), comprising a first (14) and a second (16) electromechanical switch el...
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WO/2001/035432A1 |
A fail-safe, fault-tolerant switching system for a critical device includes a first pair of terminals for connection to a power source; a first network including a first fuse device, first switching device and third switching device conn...
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WO/2001/031664A1 |
An optically controlled micro-electromechanical (MEM) switch is described which desirablyutilizes photoconductive properties of a semiconductive substrate upon which MEM switches arefabricated. In one embodiment the bias voltage provided...
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WO/2001/027954A1 |
The invention relates to an actuator unit (A) which is provided with at least two contactors (1, 2) and a secure control unit (3). A three-phase circuit (4) with a secondary voltage of at least 380 V is opened as soon as at least one of ...
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WO/2001/027956A1 |
The invention relates to a base actuator (1) and an additional actuator (2) which securely open and close a useful circuit (4). The base actuator (1) can be activated/deactivated by supplying/not supplying electric energy during normal f...
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WO/2001/027955A1 |
The invention relates to an actuator unit that is provided with a base actuator (1) and an additional actuator (2). A useful circuit (4) can be opened and closed by means of said actuators. The base actuator (1) can be activated by suppl...
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WO/2001/022461A1 |
A pulse driving source circuit includes a positive temperature coefficient self-heating resistor which is connected to the driven circuit in series. By connecting a unidirectional element to the driven circuit, a positive or negative dri...
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WO/2001/020630A1 |
The invention relates to an electromagnetic switching device (1). The aim of the invention is to control at least the correct connection of an input (2) and an output contact (3) by means of a contact bridge (4). To this end, a control c...
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WO/2001/020632A1 |
The invention relates to an electromagnetic switchgear comprising an opening driver element (7) with which a contact driver (3) can be displaced out of an inoperative position (R) and into an operative position (B). To this end, a contac...
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WO/2001/013396A1 |
The invention relates to an electromagnetic switchgear (1) which comprises a current limiter (5). Said current limiter limits the electric current supplied from a current supply to a limiter current (I¿L?) that is lower than the break-a...
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WO/2001/013395A1 |
The invention relates to a circuit arrangement (1) for operating a relay. The inventive arrangement provides a making current (ES) for the operating coil (SP) of the relay and subsequently a holding current (HS) after a given time (t1). ...
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WO/2001/009910A1 |
The invention relates to an electromechanical switching device (1) which can be tripped in a quick and reliable timed manner . The timed tripping circuit comprises a voltage-sensitive switching element (13) which separates an energy stor...
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WO/2001/008188A1 |
The invention relates to a method for effecting an electronic drive control used for controlling a drive coil of a protection system during holding operation with a pulse-width modulation. The inventive method should, in a simple manner,...
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WO/2001/008307A1 |
The invention relates to an electronic drive control mechanism for controlling a drive coil of a contactor, said coil having a pulse-width signal that is generated by an arithmetic unit, and a static switch. The aim of the invention is t...
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WO/2001/005628A1 |
The invention relates to a system for actuating electric functional elements comprising at least two physically separated actuating modules, whereby a) a defined electric function can be selectively triggered by any of the actuating modu...
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WO/2001/004922A1 |
An elecromagnetic contactor (100) which makes or breaks a contact by moving a moving core (1) from a first position which is a wide gap away from a fixed core (20) to a second position a narrow gap away from the fixed core by an electrom...
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WO/2001/003987A1 |
A circuit (30) for actuating an ABS solenoid valve coil (40) with a pulse width modulated voltage having a constant frequency and variable duty cycle. The coil current is a function of the duty cycle of the pulse width modulated voltage....
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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/2000/074192A1 |
An electronic test circuit (128) for the self-testing of fault detection devices such as GFCI's, AFCI's and RCD's that enhances the safety of such devices by automatically testing the function of all components of these detection compone...
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WO/2000/070634A1 |
A switch includes an armature, selectively movable between a first position and a second position, a coil for effecting movement of the armature between said first and second positions, a magnet for holding the armature in one of said po...
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WO/2000/067270A1 |
Power supply systems and methods can enable an electromagnetic device, such as an electrical contactor, to ride-through both voltage sags and dropouts. In an illustrative embodiment, a rectifier (24) is used to generate a DC input voltag...
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WO/2000/060623A1 |
The invention relates to a circuit provided with a protective function which contains at least two power contactors that have main make contact elements arranged in release current circuits (4). According to the invention, each main make...
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WO/2000/047095A1 |
A cordless electrically heated water boiling vessel has an enclosure associated with its heating element (3) for simulating a dry boil condition when water boils in the vessel, this enabling dry boil protection and automatic switch off o...
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WO/2000/045403A1 |
A system for controlling the force and/or motion of an electromagnetic actuator (L1). The actuator (L1) could be a solenoid, relay, or levitating device. The drive (T1) to the coil (L1) can be linear or switching, voltage or current and ...
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WO/2000/044007A1 |
A solenoid valve controller comprises a solenoid valve (C) that has a closed state where its plunger (a) touches the seat (b) and an open state where the plunger (a) is away from the seat; and control means (e) for carrying out pulse-wid...
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WO/2000/039915A1 |
An electrostatic actuator and drive configuration device for use in a system requiring a long term ON state operation. The device includes a first electrostatic actuator positioned to operate in the system requiring the long term ON stat...
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WO/1999/063561A2 |
A first and a second line (L1, L2) conduct the input direct voltage (Ue) to the load. A fuse (S) is connected in series in the first line. The switching contact (K11) of a first relay (K1) is also connected in series in the first line an...
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WO/1999/054978A1 |
The invention relates to a differential current protective circuit breaker with a totalizing current transformer (2) monitoring a ladder network (Ln). Said transformer is connected to a power supply unit (8) and a tripping relay (12) for...
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WO/1999/047905A2 |
A vapor or analyte sensing device that is sufficiently small and lightweight to be handheld, and also modular so as to allow the device to be conveniently adapted for use in sensing the presence and concentration of a wide variety of spe...
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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/1999/034225A1 |
A compound switching matrix (30) operates in cooperation with a resistance measuring system (20) and a laser (22) to quickly and accurately trim resistors (12) to predetermined values while they are being measured. The compound switching...
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WO/1999/033077A1 |
The invention relates to an electric switching device with a signalling element which triggers a switching function when the closed circuit is interrupted, a relay safety assembly being switched into the closed circuit. The incoming and ...
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WO/1999/031696A1 |
A relay controller for an electrical device includes a bistable relay (22) and an electronic controller (20) having a plurality of switching transistors (32-38) for operating the relay (22) in response to commands. Advantageously, the co...
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WO/1999/030837A1 |
The present invention relates to a glue gun (10) for selectively supply molten adhesive. The glue gun comprises a housing (12), an actuator (16) movable between actuated and non-actuated positions, and a nozzle (18) configured to allow m...
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WO/1999/030338A1 |
The invention relates to an electromagnetic relay, comprising a magnetic system (6) with an exciting field coil (W¿R?), a core and an armature. Each load current circuit can be closed by a movable contact element and by at least one fix...
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