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Patent Searching and Data


Matches 251 - 300 out of 4,838

Document Document Title
WO/2012/081659A1
Provided is a protective device having a bimetal switch that allows a high level of flexibility to be achieved, and operation of the bimetal element to be controlled more accurately. The protective device has a bimetal switch (12), in wh...  
WO/2012/077284A1
A load circuit protective device calculates increasing temperature of wire of a load circuit with a first predetermined sampling period (dt1) determined by a clock signal for normal operation when a semiconductor relay (Q1) is on to esti...  
WO/2012/022345A3
The invention relates to a method which can be used to switch photovoltaic modules (PV modules) in a PV installation to a safe state in the case of a hazard. Control units (3), which are each associated with a PV module, are used to meas...  
WO/2012/075001A2
A safety overheat protection circuit for flexible heater wire used in heating pads and electric blankets. The heater wire includes a low melt temperature fuse-able layer and a conductive core. A polymetnc positive temperature coefficient...  
WO/2012/047605A3
A system for protecting a three-phase electric motor of a compressor, the motor receiving first, second, and third phases from a three-phase power supply, the system including a single-phase line break protector, a first current sensor, ...  
WO/2012/060811A1
Power delivery systems and methods are provided. A power delivery system (100) can include a thermal device (140) disposed at least partially within the external power delivery device (110). The thermal device can be configured to output...  
WO/2012/057787A1
Techniques associated with energy storage devices are generally described. An example energy storage device includes a battery integrated with a sensor such as an optical waveguide. The sensor can be arranged in contact with an outer wal...  
WO/2012/056084A1
The present invention provides a safety device (1) having an input and an output for electrical receptacle, wherein the electric power from the input is arranged to pass through the device through a switch unit to the output, said switch...  
WO/2012/051693A1
An intrinsically safe supply for supplying back-up power during a power-out event incorporates one or more rechargeable fuel cells. The power supply is provided with switching circuitry operable to provide an output back-up current from ...  
WO/2012/049196A1
The invention relates to an operating device (1) for at least one luminous element (2), comprising a means for measuring a temperature (T) present in the operating device (1) or in the surroundings of the operating device, at least one i...  
WO/2012/047605A2
A system for protecting a three-phase electric motor of a compressor, the motor receiving first, second, and third phases from a three-phase power supply, the system including a single-phase line break protector, a first current sensor, ...  
WO/2012/016939A1
The invention relates to a measuring system for measuring a current of a circuit breaker flowing through a conductor (9). In order to prevent damage to the measuring system, in particular due to thermal overload and/or mechanical influen...  
WO/2012/012985A1
A protection circuit for an outlet includes: a switch control circuit (101), the input terminal of which is connected with a direct current power supply or an alternate current power supply; an automatic load detection circuit (102) for ...  
WO/2012/010193A1
The present invention relates to an arrangement to detect a ground fault in an AC electric circuit (1) comprising an electric machine (10) having a neutral point (14) connecting to a neutral point and a terminal side (13), and a unit tra...  
WO/2011/153788A1
A solar photovoltaic generation system comprises a photovoltaic generation unit, a trigger unit (2) and an inductor (3). The photovoltaic generation unit is divided into multiple photovoltaic generation sub-units (1). The trigger unit (2...  
WO/2011/152526A1
A control device for an electric power converter is provided with an average loss calculation unit (202) which calculates an average loss of a semiconductor element in a cycle in which the temperature of a semiconductor element is estima...  
WO/2011/074861A3
The present invention provides a pipe and pipe assembly for a power supply line for an online electric vehicle, an automatic power supply facility management system and a control method thereof, which can prevent the power supply line us...  
WO/2011/079357A1
System for monitoring oil level and detecting leaks in power transformers, reactors, current and potential transformers, high voltage bushings and similar, notably for a system that through the use of sensors and other electronic compone...  
WO/2011/069548A1
The present invention relates to a fault detection system for detection of line faults on an electrode line in an HVDC system wherein the electrode line comprises a first and second branch connected in parallel. The fault detection syste...  
WO/2010/122467A4
'Firevoider' is a set of apparatus that combine and analyze electronic signals from Hall Effect sensors, current transformer, Pyroelectric infrared sensor, ionization chamber smoke sensor, to determine the imminence of fire hazard. On de...  
WO/2011/051628A2
The invention relates to a facility (20) for producing electric current using solar radiation, which is built into a building (1) and includes at least one photovoltaic generator (22) as well as a short-circuiting switch (80) suitable fo...  
WO/2011/050568A1
An electric device and a high temperature self-protecting method thereof. The electric device includes a housing sealed in its entirety, a plurality of function modules arranged in a cavity surrounded by the housing, and a main chip (1) ...  
WO/2011/052623A1
Provided is an inverter device (2) provided with a direct-current power source (4), switching elements (S) and free wheel diodes (D) which are connected to the direct-current power source (4), a means which converts direct-current voltag...  
WO/2011/040295A1
Provided is an overcurrent cutoff device (10) that is provided with: a heat generating unit (21) that is placed serially within a path that starts from a battery (B) of a vehicle and reaches, via a wire, a motor (M), and a heat sensing u...  
WO/2011/037170A1
A power supply control device is provided between a power source and a current path and includes: a switch circuit which changes over between current passageand non-current passage from the power source to a load; and a current path prot...  
WO/2010/122467A3
'Firevoider' is a set of apparatus that combine and analyze electronic signals from Hall Effect sensors, current transformer, Pyroelectric infrared sensor, ionization chamber smoke sensor, to determine the imminence of fire hazard. On de...  
WO/2011/017920A1
The embodiment of the present invention relates to the field of communication technology, and discloses a method, a device and a terminal for flow control. The method for flow control comprises: monitoring operating temperature of a devi...  
WO/2011/015420A1
The invention relates to a protection device (10) for an inspection installation (11) comprising a test device (12) provided with a voltage source (13), a test object (1) which can be electrically connected to the voltage source (13), an...  
WO/2011/010375A1
Disclosed is a power transmission device (20) comprising: a power supply unit (200) for supplying an electric power in a resonance frequency for magnetic resonance; a power transmission resonance coil (300) made magnetically resonant to ...  
WO/2010/140474A1
Provided is a protection device for load circuits that enables electric wires and semiconductor switches to be made to be more compact, by using a switching circuit that imitates the current and breaking-time characteristics of a fuse. T...  
WO/2010/140248A1
Disclosed is a wind power generator, which can prevent electric equipment from being damaged when the wind turbine generator is installed in a cold district. A wind turbine generator (2) comprises a power supply unit (23) connected with ...  
WO/2010/137935A1
The novel features of the invention are summarised below. The device conditions the start-up of the motor to the state thereof in terms of age and moisture level, as detected in the insulator of the sector. The program of the device take...  
WO/2010/130562A1
The invention relates to a busbar trunking system (1) comprising a plurality of interconnected single-phase or multiphase modular busbar parts (2) for distributing electrical energy, in particular in the low and medium-voltage range, whe...  
WO/2010/127911A1
The invention relates to a device for electrically protecting an electric vehicle. In order to protect high voltage batteries of electric vehicles in the event of floods, a disconnecting device (6) for electrically disconnecting a vehicl...  
WO/2010/125733A1
Provided is a current control apparatus wherein a threshold value can be varied. The current control apparatus which generates control signals that control a current supplied from a power supply has: an interface circuit which sets the t...  
WO/2010/027598A8
A power tool is disclosed. The power tool may comprise a movable blade and a detection system for detecting contact between the blade and an object. The detection system may comprise an excitation plate capacitively coupling the drive si...  
WO/2010/108379A1
An electric interlocking apparatus of a belt conveyer system and a ceramic filter system is disclosed. The ceramic filter system is controlled by a control cabinet of itself, while the belt conveyer system is controlled by a belt electri...  
WO/2010/111535A1
A contactor for air conditioning unit includes: a first magnetic coil, having a first set of contacts for the compressor; a second magnetic coil, having a second set of contacts for the fan motor; and a time delay device connected in ser...  
WO/2010/060093A3
A solid state relay has independent charge pumps isolating each gate of a full bridge to achieve faster and proper gate turn on. The low side MOSFETs of the bridge are the current sensing device reducing loss and allowing a device contro...  
WO/2010/039495A3
Systems and methods that provide improved detection of series fault conditions are described. The systems provide an increased range of response possibilities upon detection of such conditions. Solid-state temperature sensors are utilize...  
WO/2010/069208A1
A method used for thermal protection control of an integrated circuit and a system thereof which are suitable for wireless terminal equipment. The method includes the steps as follows: measuring the temperature of a protective point; com...  
WO/2010/070551A1
An ultrasound apparatus, a medical device comprising such ultrasound apparatus and a method for operating an ultrasound apparatus are proposed. The ultrasound apparatus (10) comprises a power supply (1), system electronics (2) for contro...  
WO/2010/060093A2
A solid state relay has independent charge pumps isolating each gate of a full bridge to achieve faster and proper gate turn on. The low side MOSFETs of the bridge are the current sensing device reducing loss and allowing a device contro...  
WO/2010/056125A1
An apparatus (30, 50, 60) for protection against fire in an electrical system (10) at connection points for electrical cables (510) comprises at least one thermal element (50) which is operable to register and warn in response to increas...  
WO/2010/043343A1
The invention relates to a solar module having a plurality of series-connected photovoltaic solar cells (1). The problem to be solved is that of providing protection from contact voltages. For this purpose a mechanical switching contact ...  
WO/2010/041085A1
An automatic switching apparatus (10) comprising: switch means (54) for selectively connecting or disconnecting an electrical load (58) from a mains power supply (56); trigger means (76, 86, 88) for detection of a first predetermined eve...  
WO/2010/017803A3
The invention relates to an apparatus (1) for controlling and regulating a DC voltage converter (2), comprising one or more power output stages and a control unit (4) with a signal ground line (4.1) which have a common ground potential (...  
WO/2010/039495A2
Systems and methods that provide improved detection of series fault conditions are described. The systems provide an increased range of response possibilities upon detection of such conditions. Solid-state temperature sensors are utilize...  
WO/2010/038339A1
A first terminal of a protection element of a control unit is connected to a line between a motor and a switching element, and a second terminal thereof is directly connected to a ground-side line that is common to a controller and the s...  
WO/2010/027598A1
A power tool is disclosed. The power tool may comprise a movable blade and a detection system for detecting contact between the blade and an object. The detection system may comprise an excitation plate capacitively coupling the drive si...  

Matches 251 - 300 out of 4,838