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Matches 1,251 - 1,300 out of 3,982

Document Document Title
JP3671989B2
To keep the state of power cut-off regardless of breakage at relays constituting a power cut-off device. A first relay 30 equipped with one constantly-closed contact 31 and two constantly-opened first and second contacts 32 and 33, a sec...  
JP3668518B2
PURPOSE: To prevent generation of trip failure and to rapidly detect and display disconnection and insulation defect by providing a detection means for detecting insulation defect and disconnection of a switch based on a combination patt...  
JP3656413B2
To realize both a control operation and a temperature protection function which corresponds to a number of loads by mounting a power element with an over-temperature-breaking means for breaking current supply on the same substrate or an ...  
JP2005143232A
To provide a protection method whereby high load operation can be intermittently performed without interrupting an inverter current.The protection method for power semiconductor devices (1 to 6) is as follows: a thermoelectric cooling mo...  
JP2005124329A
To provide a battery protector reduced in size and easy to manufacture, and a battery pack.When the protector is attached to a battery 8, the battery protector turns first and second fixed terminals 2, 3 into a continuity by a bimetal pi...  
JP3643711B2
To interrupt charging when either of secondary batteries connected in parallel for charging in an extremely simple circuit is charged by overcurrent. A charger performs charging by connecting a plurality of secondary batteries 1 in paral...  
JP2005110458A
To provide an electric breaking device for earthquakes that is easily mounted on an arbitrary molded-case circuit breaker and that prevents an occurrence of a fire when power supply is resumed after an earthquake.A main unit 11 comprises...  
JP3628783B2
To provide a simple and low-cost means for measuring current flowing through a circuit breaker with thermo-magnetic trip means. A voltage applied to a bimetal 19 is utilized for detecting a load current. The voltage signal for indicating...  
JP3627374B2  
JP2005057896A
To dispense with the maintenance work of a terminal by substantially eliminating the consumption of a battery at the thermosensitive detection terminal, and besides to remote-control abnormal heating in real time.This system is equipped ...  
JP3621814B2  
JP2005039948A
To surely prevent the overheat of a main element by accurately detecting the temperature of the main element constituting a semiconductor device that controls an AC load.The semiconductor device is configured such that: an overheat detec...  
JP3618635B2
To sufficiently lower a temperature of a protector when a discharge of a battery-stored energy is finished and discard/neglect a battery pack without anxiety immediately after the discharge is finished, by a method wherein a cooling spee...  
JP2005020952A
To completely eliminate the risk that may be caused by a capacitor storing high-voltage electric power, even at a collision between vehicles.HV_ECU executes programs, including a step (S200) where system main relays are turned off and a ...  
JP3605275B2
To provide a lighting transmitter which does not malfunction, even if a remote controller main part is placed with an inclination, can cope with different apparatuses and is general purpose, and furthermore, is very satisfactory in certa...  
JP3605817B2  
JP2004350383A
To provide a switch of smaller size, and improved economy and reliability, which is assembled in a power supply circuit of an electric equipment of a low-voltage contract consumer.A polymer switch element 20 of which a resistance varies ...  
JP2004535748A
In order to recognize an electric arc in a 42 V vehicle electrical system and initiate suitable protective measures, a detection line is at least partially guided along a current conducting supply line for the protection thereof, whereby...  
JP2004320418A
To provide a high-frequency power supply which can supply high-frequency output higher than the conventional output without breakdown of an amplifier.The high-frequency power supply comprises a junction temperature arithmetic unit 18 for...  
JP3585105B2
To provide the control circuit of a semiconductor device with superheating protection function, which ca reduce possibility that the semiconductor device is destroyed. The control circuit of the semiconductor device with superheating pro...  
JP2004311352A
To provide a thermal protector having high reliability and high versatility of use as a protection device.A first to fourth terminals 4b, 5b, 6b, 7b are drawn out from a housing 3 made of synthetic resin, and a trimetal piece 8 is displa...  
JP3584832B2
To positively and securely avoid the overheat of a relay with the compact structure in an electric power steering system for controlling the switching condition of an assist motor and current-carrying lines of a driving circuit with a re...  
JP2004531384A
The invention relates to an internal combustion vibrator for compacting concrete, comprising a vibrator housing in which a rotational unbalance mass, an electric motor powering said unbalance mass and part of a power line connected to th...  
JP3572112B2  
JP2004254498A
To improve protective operation of a power control system from a load or abnormality of a power semiconductor device for driving and to increase safety of the system.The power supply device for vehicles has a plurality of modules which c...  
JP2004246992A
To initialize a fuse latch circuit stably and with low current consumption.One end of a fuse is connected to a ground point through a transistor N1A, and the other end is connected to a node VaA. For example, when the fuse is connected, ...  
JP2004248415A
To provide a switching circuit which enables coping with the side of an externally connected apparatus, when there is slight abnormality.This switching circuit has a MOS transistor Q1; a circuit (a resistor R2 and a resistor R3) for dete...  
JP3552597B2  
JP2004222389A
To provide a circuit protection unit which can be reduced in a circuit and which can simplify a mounting work.The circuit protection unit includes a temperature fuse 2 melted by a temperature rise, a surge absorber 3 for absorbing a tran...  
JP3547442B2
In response to the loss of a generator in an electrical power system, all operating electrical loads are automatically switched to a second generator, and the electric power system continues to provide power to all of the loads. The tota...  
JP3545048B2
PURPOSE: To provide a motor with a circuit breaker which can surely chop current supply to an armature in a moment when overloaded. CONSTITUTION: A motor with a circuit breaker is provided with a circuit breaker 16 which is electrically ...  
JP2004173391A
To provide a power circuit which is high in the accuracy of detection of the temperature of a heating body to be detected and can be reduced in size.Two Zener diodes 16 and 17 are connected in series between output terminals 14 and 15. A...  
JP3536880B2
To provide a detecting circuit for suspension of cooling water of an emergency diesel power generating installation, which can prevent careless engine stop due to wiring disconnection of a flow switch. This detection circuit is provided ...  
JP2004159439A
To provide a power breaker which does not require a collision detecting mechanism and an additional circuit.When relays 14 and 16 are ON, a battery 10 and an inverter 12 are electrically connected with each other, and the output of the b...  
JP2004153991A
To secure higher safety by detecting ground faults of dc currents at lower cost with high accuracy.A detector includes a zero-phase current transformer (ZCT)41 which measures the difference of quantities of the dc currents flowing throug...  
JP3528551B2
To provide noncontact feeding equipment in which a moving unit is protected by the heat of a pickup coil. A heat-sensitive wire 51 which is composed of a pair of nonmagnetic conductors which are respectively covered with insulators which...  
JP2004134375A
To prevent unusual overheat accidents resulting from a glow contact formation in a conductor connection part.An electrical switching device, such as a receptacle, includes a line conductor circuit having a first temperature, a neutral co...  
JP2004133568A
To provide a rush current preventing device capable of limiting a rush current even when a time interval after a power switch is turned OFF until it is turned ON is short and preventing useless power consumption in a rush current limitin...  
JP2004096958A
To provide a thunder resistant system substantially obtaining no service interruption by shortening a power interruption time for protecting an apparatus from a thunder surge, and capable of automatically being restored.The thunder resis...  
JP2004507994A
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...  
JP3505618B2
To provide a feeder system that prevents an overcurrent from flowing to a load, prevents a circuit element from being damaged and burned by the overcurrent generated in a pickup coil and that generated in a resonance capacitor, can displ...  
JP3498251B2
PURPOSE: To enhance the accuracy and reproducibility of a temperature detection circuit by making a binary decision whether the temperature of a semiconductor exceeds a predetermined level based on the direction of differential current b...  
JP3497926B2
To quickly respond to the variance of pressure in a battery and be broken even by comparatively small pressure to automatically interrupt the current of an electric circuit by providing a member to be broken which is received in an enclo...  
JP3497919B2
PURPOSE: To provide a pressure cut off sensor capable of surely stopping use of a storage battery in which inside pressure is abnormally increased and ensuring safety by installing specified constitution. CONSTITUTION: A pressure cut off...  
JP2004037135A
To provide an apparatus and a method for monitoring a dissolved gas in oil that can send back the oil into oil equipment without allowing the oil to come into contact with the air after the monitoring operation of oil.A non-bellows-type ...  
JP2004040922A
To attain temperature detection, and protection from overheat and overcurrent of an inverter circuit.This inverter circuit device includes a switching circuit 9 consisting of a plurality of switching devices in an inverter circuit, and a...  
JP2004032876A
To provide a general home with a simple, secure, and low-priced vibration restraining device.This device has a plurality of power input terminals, and in a power source for a general home each input terminal becomes single-phase two line...  
JP3488082B2
To prevent fire of a vehicle from occurring even if a wire harness is short-circuited, by shutting off a part between a battery and a wire harness when there is a possibility of generation of a trouble on the wire harness. When an air ba...  
JP3488057B2
To provide vehicular power feed equipment that delivers power with reliability through suppression of heat caused by a power-line switch means set in a power line and of its resultant deterioration in quality. A vehicular power feed equi...  
JP2004501506A
An anti-hot spot device for at least one photovoltaic module (10) including: a photovoltaic module shunt diode (20), means (36, 40) for detecting at least one operating characteristic of the photovoltaic module, and means (22, 34) for is...  

Matches 1,251 - 1,300 out of 3,982