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Patent Searching and Data


Matches 501 - 550 out of 12,241

Document Document Title
WO/2005/093239A1
The invention relates to a method for controlling a solenoid (S) to be used in the fuel supply of an engine. In the fuel injection step (t1-t8), the current to be supplied to the solenoid (S) is controlled to set and maintain the solenoi...  
WO2005047759A3
The invention relates to a method and a device for switching off an inductive consumer (54) without error. According to one aspect of the invention, a defined induced voltage (Ui) is regulated when the consumer (54) is switched off. Said...  
WO/2005/069331A1
An electro-mechanical switch structure includes at least one fixed electrode and a free electrode which is movable in the structure with a voltage potential applied between each fixed electrode and the free, movable electrode. The voltag...  
WO/2005/047759A2
The invention relates to a method and a device for switching off an inductive consumer (54) without error. According to one aspect of the invention, a defined induced voltage (Ui) is regulated when the consumer (54) is switched off. Said...  
WO/2005/036746A2
A high voltage driver (101) with capacitive (106) coupling that is useful in the presence of the high power supply ripple common with higher-voltage systems (118). It permits extreme ranges of duty cycle, but without the limitations of t...  
WO/2005/031777A1
The invention relates to a hybrid contactor which is intended for an electric starter and which includes a solid-state relay (21) comprising a semiconductor, which is housed in a slot (40c) in the cap (40) and which is electrically conne...  
WO/2005/017932A1
The aim of the invention is to improve ease of operation of installations comprising a plurality of emergency switch keys (12, 12', 22, 22'). For this purpose, the installation can be switched on again by means of a common switch-on key ...  
WO/2005/017933A1
The aim of the invention is to optimise the displacement of the armature of an electromagnetic switching device, in particular a contactor or relay, during the closing operation. To achieve this, the acceleration of the armature is contr...  
WO/2004/109707A1
A radiation hardening circuit that includes two series-connected transistors that can replace any single transistor in a circuit. The hardening circuit includes a resistor that has a fist node and a second node, a first transistor having...  
WO/2004/107377A1
The aim of the invention is to improve the response time of safety-critical electrical components during a safety cut-out. To this end, the outputs of two controllers (C1, C2) used to control switches (S1, S2) connected in series and per...  
WO/2004/105067A1
The invention relates to a safety switching device for the failsafe shutdown of an electric consumer, such as in particular an electrically driven machine. The safety switching device comprises a signal processing part (12) for picking u...  
WO/2004/095667A1
There is provided a circuit breaker comprising a first switch circuit having first and second terminals. The first switch circuit comprises a first controllable signal current switch for switching between a closed, current conducting sta...  
WO2003058663A8
A system for an AC electrical circuit includes an actuator (110), a source (115), and an actuator control system (120). The actuator converts current into a force to move contacts relative to one another to switch power on and off in the...  
WO/2004/089580A1
An industrial robot controlling device high in safety capable of positively cutting off a release voltage application to a brake even when contact fusing occurs by receiving a release voltage to a brake by a plurality of contacts connect...  
WO/2004/088696A1
A relay contact welding detection method for use in a circuit including a DC power supply, a load circuit, first and second main relays inserted in a pair of respective power supply lines between the DC power supply and the load circuit,...  
WO/2004/073151A1
A regulated, switch mode power converter is described. An embodiment of the present invention provides regulated, switch mode power conversion from alternating current to direct current utilizing a single transistor and associated switch...  
WO2004027828A9
An amperage control for an electrically operated valve (24) having a coil. A process control apparatus (20) generates a plurality of electrical operating data signals, each signal corresponding to an operating parameter of the valve (24)...  
WO/2004/059677A1
The invention relates to an assembly consisting of a fail-safe switching device, which is used to trip the operation of a consumer in a potentially dangerous situation or as a safety precaution in accordance with a trip signal of a monit...  
WO/2004/057719A1
An electromagnetic switch comprises at least two driving coils. One driving coil turns off the switch according to the current flowing through the switch, for example, when an overcurrent flows. Another driving coil is excited or demagne...  
WO2004021382A3
In methods and circuits for using associated circuitry to enhance performance of a micro-electromechanical switch, one of the method embodiments is a contact conditioning process including applying a time-varying voltage to the control e...  
WO/2004/053913A1
Switches or switchgears with or without time-delays are known. Normally, however, conventional switches require a complex mechanical construction, in particular, when a number of application possibilities and switch types are to be made ...  
WO/2004/051686A1
The invention concerns a method for controlling an electromagnetic relay comprising at least one contact, controlled by a voltage or current supply. The invention is characterized in that the control is modulated based on the voltage or ...  
WO2004027828A3
An amperage control for an electrically operated valve (24) having a coil. A process control apparatus (20) generates a plurality of electrical operating data signals, each signal corresponding to an operating parameter of the valve (24)...  
WO/2004/045041A1
A control device for an automatic machine, performing highly reliable power supply to a drive device for the automatic machine and not having problem in securing safety. A control device for an automatic machine has a breaker (22) connec...  
WO/2004/026634A1
An electric motor circuit utilized, for instance, for adjusting a wing mirror of a vehicle is provided with a motor with a driving circuit. The driving circuit includes a relay switch element (22) included in series with the motor (20) a...  
WO/2004/027807A1
The invention relates to a method for realizing power supply into an electric switch (1), and a respective power supply arrangement for an electric switch. The switch is arranged in the current path (J), between an AC current source (E),...  
WO/2004/027828A2
An amperage control for an electrically operated valve (24) having a coil. A process control apparatus (20) generates a plurality of electrical operating data signals, each signal corresponding to an operating parameter of the valve (24)...  
WO/2004/023505A1
The invention discloses a controller for an electromagnetic system of an AC contactor, which includes a full voltage energizing circuit and a freewheeling circuit. Its main character is that the freewheeling circuit consists of an energi...  
WO/2004/021382A2
In methods and circuits for using associated circuitry to enhance performance of a micro-electromechanical switch, one of the method embodiments is a contact conditioning process including applying a time-varying voltage to the control e...  
WO/2004/019463A1
Problem: To provide a simple and low cost off-mains device to switch off the mains voltage to an electrical apparatus when this is not used, partly in order that the apparatus is not left energized with mains voltage, partly to avoid ele...  
WO/2004/015733A1
The invention relates to a control circuit (2) for an electromagnetic drive. Said circuit contains first and second electronic switching elements (16 to 22), which in conjunction with a timing element (12) subject the drive coil (4) to a...  
WO/2004/009985A1
The invention relates to a driver stage for a solenoid valve of an internal combustion engine. The aim of the invention is to provide a driver stage that reliably operates while consuming a relatively small amount of energy. To this end,...  
WO2003085313A3
The invention relates to a device for the error-proof switching off of an electric consumer, particularly in industrial production plants, comprising a first (12) and at least one second (14) safety switching device. The first safety swi...  
WO/2003/105172A1
A direct current cutoff switch (1) in which a nonlinear resistor PTC (5) is parallel connected to a contact circuit composed of a fixed contact (4-2) and a movable contact (8-2) electrodes (5-2) via electrodes (5-1). The PTC (5) has a pr...  
WO2003041237A3
The invention relates to a device (1) for controlling at least one electrical load (20) and a control unit (60, 65). The electrical load (20) comprises a first load connection (10, 11) and a second load connection (15). The first load co...  
WO2002095282A3
The invention relates to a safety switching module for reliably switching off an electrical load (43) comprising a first and a second switching control device (20A, 20B) and a first switching element (24.1) and a second switching element...  
WO/2003/085313A2
The invention relates to a device for the error-proof switching off of an electric consumer, particularly in industrial production plants, comprising a first (12) and at least one second (14) safety switching device. The first safety swi...  
WO/2003/083886A1
The present invention relates to a switch device (10) comprising a first actuation electrode (11) and a second actuation electrode (12) and a first contact electrode (16) and a second contact electrode (17), the first actuation electrode...  
WO/2003/074338A1
The invention relates to a method for reducing deviations between the effective current (IRMS) and the measured current (Imess) in a pulse-width modulated (PWM) current regulation system, particularly for electronic brake control devices...  
WO/2003/058663A1
A system for an AC electrical circuit includes an actuator (110), a source (115), and an actuator control system (120). The actuator converts current into a force to move contacts relative to one another to switch power on and off in the...  
WO/2003/056581A1
Conventionally, a non-conduction period is provided in the region near zero of the AC power supply via a voltage detection circuit (14). An FET (17) continues the ON state for several switching periods so that excitation coil current is ...  
WO/2003/054895A1
The invention concerns a method, in a switchgear, for determining wear of pole contacts (C1, C2, C3) actuated by an electromagnet (20) whereof the movement is controlled by a field coil (21). Wear is determined on the basis of a travel t...  
WO/2003/046940A1
An electromagnetic switching apparatus comprises a closed−end cylindrical section made of a magnetic material which stores a moving iron core so moved that a moving contact contacts and leaves a fixed contact, a junction member made of...  
WO/2003/043141A1
The invention concerns an illuminating apparatus comprising a lamp, an electric power source and a socket designed for an insertible illuminating means, wherein are arranged two electric contacts. Said illuminating apparatus further comp...  
WO/2003/041237A2
The invention relates to a device (1) for controlling at least one electrical load (20) and a control unit (60, 65). The electrical load (20) comprises a first load connection (10, 11) and a second load connection (15). The first load co...  
WO/2003/030198A1
The invention relates to a safety switch device (50) for safe disconnection of an electric consumer, especially an electric machine (26), comprising at least one output switch (14) for interrupting an external current supply path (30). T...  
WO2002103729A3
The invention relates to a method for supplying power to a piece of electrical equipment (1) which operates using intensity peaks and which is connected to a voltage converter (4) by means of at least one capacitive element (5). The volt...  
WO/2003/015996A1
A method for judging whether the communication state between a main control unit and a sub control unit is normal or abnormal when a noise may be generated from a drive system conductor. The method comprises a power supply step s4, a tes...  
WO/2003/017308A1
The invention relates to an electromagnet arrangement for a switch (contractor), comprising a main magnetic circuit (MK1) consisting of a magnet yoke (10) and a magnet armature (60) impinged upon by a readjusting device (36), a contact a...  
WO/2003/016932A1
A built-in test system (10) for aircraft indication switches comprises a plurality of aircraft indication switches (11, 12, 13) and a first resistor adding network having input resistors (20, 21, 22) individually connected to first conta...  

Matches 501 - 550 out of 12,241