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Patent Searching and Data


Matches 401 - 450 out of 4,837

Document Document Title
WO/2005/081276A1
A safety device applicable to a wide range, having a small size, causing little voltage loss, and hardly malfunctioning. In the safety device and an overcurrent cut-off system using the same, the power supply and the load are connected t...  
WO/2005/074088A2
The invention relates to an environmental fuse, an actuator and to an associated method for protecting the actuator from failure in a specific operating environment. The environmental fuse then comprises a sensor member for detecting any...  
WO/2005/059483A1
The invention relates to a device for monitoring a gas volume in a unit filled with a liquid, whereby the unit comprises an inlet line with at least one expansion chamber and the device comprises a buoyant body, floating in the liquid. T...  
WO/2005/053993A2
An electrical protection device is provided. The device can be removably attached to or mounted inside of a power source, such as a vehicle, e.g., automobile, battery and can employ a replaceable fuse element. The device includes an over...  
WO/2005/055387A1
Disclosed are a circuit system and a method for controlling an inductive consumer, especially protecting the consumer from being accidentally turned on. Said circuit system comprises a free-wheeling circuit (FLK) for reducing energy stor...  
WO2005029646A3
A battery cable circuits protection device (10) and circuit for preventing fluctuations in voltage from a supply battery (100) is provided. The device includes a terminal base (12) having a battery cable lug member (102) adapted for moun...  
WO/2005/048660A1
The output current of a ballast is dynamically limited when an over-temperature condition is detected in the ballast according to one of (i) a step function or (ii) a combination of step and continuous functions, so as to reduce the temp...  
WO/2005/046042A1
A protecting device for an electric motor, comprising: a stator having a running coil (11) and a starting coil (12); a power source (F) which supplies current to said running coil (11) and said starting coil (12); power switches (60), ea...  
WO/2005/046017A1
Disclosed is an overheat protection device which is capable of effectively preventing secondary batteries from overheating. An overheat protection device (20) comprises a variable resistor (11) wherein the resistance changes according to...  
WO/2005/040992A2
An intelligent power management system that includes a circuit breaker containing a PLC module that spans open contacts of the circuit breaker to provide a communication path for PLC messages between the line and load sides of the circui...  
WO/2005/029646A2
A battery cable circuits protection device (10) and circuit for preventing fluctuations in voltage from a supply battery (100) is provided. The device includes a terminal base (12) having a battery cable lug member (102) adapted for moun...  
WO/2005/015704A2
A circuit interruption device (110) is provided in which an interruption element (112) and a fuse element (114) are configured electrically in parallel. The interruption element includes an electrical conductor and a current interrupter ...  
WO/2004/107550A1
A method and an arrangement in connection with parallel-connected inverter modules, whereby two or more inverter modules (A, B, C) are connected in parallel to feed the same load, each inverter module (A, B, C) comprising two or more out...  
WO/2004/091067A1
A method and apparatus for protecting an integrated circuit against damage caused by excessive temperatures, the integrated circuit comprising a plurality of power transistors (208a, 208b, 208n). Each of the power transistors (208) is pr...  
WO/2004/085206A1
A circuit and method of reducing the occurrence of overheating of a power fold vehicle mirror. The circuit controls the operation of the power fold mirror such that when a portion of the circuit reaches or exceeds a predetermined tempera...  
WO/2004/054062A1
It is possible to prevent switching of a thunder detection circuit to the normal state by judging that no thunder is approaching because the thunder detection circuit is initialized by power supply stop during a thunder approaching conti...  
WO2004030171A9
A protective arrangement in a device that protects the device and personnel or users of the device when undesirable conditions develop within the device. The protective arrangement de-couples a power source from the device, prevents acce...  
WO2004008500A3
A protection apparatus for a semiconductor device includes a DC power source (VB), a load/RL), a semiconductor device arranged between the DC power source and the load and switches the load between a driving state and a stopping state, a...  
WO/2004/038882A1
The protective circuit for analog sensors has transistors (T1, T2) respectively located in a power supply voltage line (6) and in a ground line (8). The control electrode of said circuit is located between the supply voltage and the grou...  
WO/2004/034541A1
An electrical power supply includes a power input interconnected with a power source that supplies input power having a voltage exceeding a predetermined voltage threshold, e.g. a low voltage threshold. A power conversion arrangement con...  
WO/2004/034542A1
A secondary battery (101) arranged such that a thermal element (133) exhibiting a resistance changing dependent on temperature variation is removed from a passage that the charge/discharge current of a power storage unit (111) runs, an a...  
WO2002017456A8
A protective relay is provided to protect circuitry against reverse battery polarity or load dump, wherein a relay coil is operatively connected to a contact switch and is fed by a reverse bias diode (which may be a Zener diode) such tha...  
WO/2004/030172A1
According to the invention, a temperature pattern (7) representing a current operating situation is derived from and classified by means of measured temperature values and/or other temperature information related to the technical install...  
WO/2004/030171A1
A protective arrangement in a device that protects the device and personnel or users of the device when undesirable conditions develop within the device. The protective arrangement de-couples a power source from the device, prevents acce...  
WO/2004/025798A1
A self-contained alarm device for monitoring the supply status of a monitored electrical appliance for connection in the supply line from the network to the appliance characterised in that it has no internal power source or battery and i...  
WO/2004/008500A2
A protection apparatus for a semiconductor device includes a DC power source (VB), a load/RL), a semiconductor device arranged between the DC power source and the load and switches the load between a driving state and a stopping state, a...  
WO/2004/001925A1
An electrical device (10) includes a package (20) having an array of connections, a thermally conductive, electrically insulative substrate (12) in the package, a plurality of polymeric positive temperature coefficient (PPTC) resistors (...  
WO/2003/105304A1
A device called shock element (K. Σ.), externally similar to the usual overcurrent protective breakerof (table), containing a shock sensor and a resistance (R) (fig. 5a, fig. 5b, fig. 6), is placed in the electric panel and it is connec...  
WO/2003/098763A1
The modified Buchholz relay (2) overcomes the problem with existing relays which alarm once when full of gas and cannot provide further information unless the gas is discharged out of the relay manually. The modified Buchholz relay allow...  
WO/2003/077397A1
The invention relates to a heating device comprising an electrical heat conducting arrangement (1.1), which is integrated inside a flexible heating body (1) and which can be connected to a supply voltage (UV) via a connecting cable. Said...  
WO/2003/061091A1
The present invention relates to an electronic switch for AC currents realised only with solid state components and comprising a main bipolar or unipolar switch circuit to switch the ac current from ac line to a load, at least a current ...  
WO/2003/061089A1
The invention concerns a safety device for at least one electrical apparatus (1), apt to be electrically supplied by a mains (4) through at least one power supply cable, comprising sectioning means (5) connected between the mains (4) and...  
WO/2003/043158A1
An apparatus (100) for detecting leakage current from an electrical appliance (250) is disclosed. The apparatus (100) includes a chassis (260), an electrical fitting (188, 190) and a detection circuit (200). The electrical fitting (188, ...  
WO2002095894A8
Device for the survey of temperature variations in a direct current electrical installation, comprising a first temperature sensor (2) for the survey of the temperature of an electric circuit, a first displaying device (5) for displaying...  
WO/2003/026092A1
A safety device reliably cuts off the drive current of an electric apparatus in response to various abnormalities by combination with a normally used current breaker. For example, a current breaker which senses flood or leakage is arrang...  
WO/2003/007450A1
In order to recognise an electric arc (L) in a 42V vehicle electrical system and initiate suitable protective measures, a detection line is at least partially guided along a current -conducting supply line (6) for the protection thereof,...  
WO2002095894A3
Device for the survey of temperature variations in a direct current electrical installation, comprising a first temperature sensor (2) for the survey of the temperature of an electric circuit, a first displaying device (5) for displaying...  
WO/2002/095894A2
Device for the survey of temperature variations in a direct current electrical installation, comprising a first temperature sensor (2) for the survey of the temperature of an electric circuit, a first displaying device (5) for displaying...  
WO/2002/092941A1
The invention relates to an internal vibrator (20) for compacting concrete, comprising a vibrator housing (21a) in which a rotational unbalance mass, an electric motor (2) powering said unbalance mass and part of a power line (26) connec...  
WO/2002/063648A1
An electrical safety outlet (15) for accepting a plug (30) to provide power to electrical appliances including a power supply (70,71) and an intelligent circuitry (100) for controlling the power supply to the electrical outlet (15); the ...  
WO/2002/063739A1
A heater (13) and a thermistor (14) are parallel-connected to form a parallel-connection circuit, and a main fuse (11) is series-connected to the circuit to form a protection circuit (6). Since a charge/discharge current runs through the...  
WO2002015392A3
The invention relates to a circuit configuration (IC1, IC2, IC3, IC4) for identifying a faulty state. A first transistor of one self-conducting type (S1, JF2, P1) is provided for identifying a faulty state such as a break in a supply lin...  
WO/2002/043932A1
Electronic control circuit 10 controls the application of power from a motor 14 to a shearing hand piece 12. The circuit 10 includes a capacitive bridge circuit 16 having a first arm 18 electrically coupled with the shearing hand piece 1...  
WO2001067418A3
A personal electrical injury protection system is provided which can be worn by electricians, construction workers, or other individuals working around or with low-voltage lines (i.e., generally less than about 600 volts). The personal e...  
WO2002017456A3
A protective relay is provided to protect circuitry against reverse battery polarity or load dump, wherein a relay coil is operatively connected to a contact switch and is fed by a reverse bias diode (which may be a Zener diode) such tha...  
WO/2002/033800A1
A circuit arrangement for driving a load (10) is disclosed, comprising at least one power transistor (18 - 21) and a polarisation reversal protector (32). The polarisation reversal protector (32) has a polarisation reversal protection tr...  
WO/2002/017456A2
A protective relay is provided to protect circuitry against reverse battery polarity or load dump, wherein a relay coil is operatively connected to a contact switch and is fed by a reverse bias diode (which may be a Zener diode) such tha...  
WO/2002/015392A2
The invention relates to a circuit configuration (IC1, IC2, IC3, IC4) for identifying a faulty state. A first transistor of one self-conducting type (S1, JF2, P1) is provided for identifying a faulty state such as a break in a supply lin...  
WO/2002/015357A1
The invention provides a protective circuit for protecting an electric circuit from excessive currents and/or voltages. The protective circuit is distinguished in that it comprises an electric resistor through which there passes the curr...  
WO/2001/080394A1
A safety circuit (20) for an electric motor. The electric motor includes at least one power input (L1), at least one motor winding (T2) and an input ground (T3). The safety circuit includes a relay (21) coupled to the power input (L1) an...  

Matches 401 - 450 out of 4,837