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WO/2006/068615A1 |
The invention relates to a method for determining the load state in a power system component, such as a line, in an electric power system. The invention is achieved by: determining the reference temperature for the conductor material, de...
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WO/2006/025930A2 |
An overcurrent protection circuit for low-voltage, high-current electrical systems comprises a Positive Temperature Coefficient (PTC) resistor (20) in series with an auto-reset thermal breaker (18). The breaker (18) allows for intermitte...
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WO/2006/022362A2 |
A cooling fan (30) of a secondary battery (10) and a cooling fan (40) for a DC/DC converter (20) are parallelly arranged and share the same gas discharge path (80). On the secondary battery (10) are installed an air intake side temperatu...
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WO/2006/015566A1 |
The invention relates to a circuit arrangement (01, 15, 21), for the protection of a conductor element (02), in particular, a planar conductor, in a motor vehicle against overload, comprising a first measuring body (06), by means of whic...
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WO/2005/124807A1 |
A voltage judgment method for judging whether a voltage exceeds a predetermined value includes: a diode preparation step for preparing a diode having Zener voltage substantially identical to a predetermined value; a bimetal preparation s...
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WO/2005/124964A1 |
There are provided a first switch element (34a) for interrupting the discharging current following in a battery cell (31) and a second switch element (34b) for interrupting the charging current. A positive character thermistor (Rcpb) is ...
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WO/2005/117113A1 |
The invention relates to a switching element (50) for protecting a circuit comprising a load. Said element comprises a signal input (60), to which a signal can be applied, a signal output (100), a signal path, which connects the signal i...
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WO/2005/117229A1 |
The present invention comprises an electronic element (2a), fitted or adapted for an electric circuitry or circuit arrangement (1), where said circuitry inter alia is constituted by a voltage source (1a, 1b), a supply voltage and a curre...
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WO/2005/114806A1 |
The invention relates to an electronic relay (1) comprising a power section (3) that can be switched by a control component (4) and is provided with a voltage input (5) for a supply voltage (UV) in the low-voltage range, especially in th...
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WO/2005/106336A1 |
A device for controlled supply of current to an electrically driven unit, comprising an outlet (1) designed for connection of the electrically driven unit, the outlet (1) being arranged to go into a first state if said electrically drive...
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WO/2005/101431A1 |
The invention relates to a method and a device for detecting the degree of pollution in an operational converter. According to the invention, the operating condition of at least one of the converter components that is exposed to the ambi...
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WO/2005/089878A1 |
The invention provides a method and device for managing the ventilation device in the electronic apparatus, the core thereof is that manage the operation states of the ventilation device in the electronic apparatus according to the tempe...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 (...
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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...
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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...
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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...
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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 ...
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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...
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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, ...
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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...
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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,...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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