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Matches 1,051 - 1,100 out of 4,849

Document Document Title
JP5092878B2  
JP5083175B2  
JP5075372B2
To increase charging/discharging currents of a battery pack in which a microcomputer restorably performs protection such as cutting off charging/discharging currents by turning off the FET interposed in the charging/discharging path to a...  
JP5073733B2
A forced discharge mechanism for a storage battery for forcibly establishing conduction between a pair of power transport paths that are respectively connected to a positive electrode terminal and a negative electrode terminal of the sto...  
JP5073204B2
An overvoltage protection device is adopted, which is provided with a conductive polymer that runs away thermally when the resistance value becomes V<2>/P or higher, given that the power consumption when actuated is P and the voltage of ...  
JP5057928B2  
JP2012196087A
To prevent explosion and firing of a varistor due to a short circuit current in a short circuit failure state of the varistor, and to suppress damages of a protection target device even when power is supplied again in the short circuit f...  
JP5030429B2
To blow out a fuse surely by a heating resistor even if the voltage of a battery in a pack battery varies sharply. The protective element 2 comprises a low melting point metal 5 which is blown out upon heating, and a resistor 4 thermally...  
JP2012175794A
To enable a failure diagnosis for a power converter more easily.The present invention is a failure diagnosis method for a power converter 2 that diagnoses a failure in the power converter 2 disposed with a transformer 4 for a converter o...  
JP2012161232A
To provide a battery pack capable of cutting off electrical connection between battery modules, when an impact sensor for air bag, an impact sensor or a moisture sensor detects damage to the battery pack, by making a battery control sect...  
JP4985189B2  
JP2012124982A
To provide a protection device for a load circuit that can reduce power consumption after a semiconductor relay Q1 is turned off.When the semiconductor relay Q1 is on, a temperature rise of the load circuit is computed at a sampling peri...  
JP2012513738A
Method for detecting an electric arc in a photovoltaic device by ultrasound, characterized in that it comprises the following steps: measuring (E1) at least one parameter among the amplitude of the signal, the duration of the signal and ...  
JP2012115010A
To provide an electrical device preventing accidents caused by deterioration occurring due to long term use.An electrical device 1A having a main body function part 2 operated by power supplied from an external power source 7, has: a pow...  
JP4953249B2
To continue charging while a failure such as deterioration and expansion of a battery is reduced even if a battery temperature rises. A protection operation control part (protection operation control IC) 245 detects an overcharge state, ...  
JP2012100418A
To suppress leakage at flooding.A charge apparatus for an electric vehicle includes a flood sensor 6 for detecting flooding of a stand body 1, and a control section 7 for remote-controlling a remote control breaker 200 to de-energize a r...  
JP2012065520A
To provide a protective relay capable of reducing a difference between an actual load temperature and a load temperature recorded on the protective relay without using a temperature sensor and the like even when a control power supply of...  
JP2012060879A
To provide a high-speed accident determination device and a method in an electric power system, which determines whether an accident occurs or not at a very rapid speed.The accident determination device comprises: a current transformer w...  
JP4899917B2  
JP4885594B2  
JP2012039803A
To provide an electronic circuit which has a function to protect an IC element from excessive current due to latchup.An electronic circuit comprises: an IC element having a terminal connecting to a power source voltage and a terminal con...  
JP2012029545A
To provide an overcurrent shut-off apparatus capable of performing a highly accurate overcurrent shut-off, and an overcurrent detection element used for the same.An overcurrent shut-off apparatus 10 includes: a heating part 21 disposed i...  
JP2012029488A
To provide a portable electronic apparatus preventing exothermic heat caused by failure of an electronic circuit and the like and improving safety and workability for failure analysis by recording fault factors.A portable electronic appa...  
JP4864373B2  
JP2012016259A
To provide effective thermal protection for elements by estimating a temperature exceeding the maximum value of pulsating temperatures even in a transient state of average temperature, not just in a saturated state of average temperature...  
JP2012501043A
A surge protector includes a thermal separating device and an error display, and at least two first protection elements, particularly disk-shaped varistors (7), and at least one second protection element, particularly a gas arrester (9),...  
JP2011244592A
To provide a drive controller of single phase induction motor capable of correctly recognizing open operation of a thermal protector.A drive controller of single phase induction motor comprises: first voltage monitoring means (15) that m...  
JP4823975B2  
JP4818847B2  
JP4812699B2  
JP2011205776A
To provide an electronic device, an electronic device system, and a program which can detect failure certainly and easily even when failure due to high temperature occurs in the power system of an electronic device.When a sign of failure...  
JP2011199930A
To provide an outlet including a shutoff function that can shut off electricity at the occurrence of vibration, and can be handled easily.The outlet including a shutoff function includes a plug cap 11 insertable into an existing outlet 1...  
JP4776251B2  
JP4770446B2  
JP4762044B2
A protection device protecting a load circuit by shutting off a power thereof depending on an estimated present temperature of a wire provided in the load circuit to connect a load. The protection device has a first temperature estimatio...  
JP2011160569A
To provide a system interconnecting generator for preventing fires that occur due to the heat generated or short-circuiting of electrical component.The system interconnecting generator 1 boosts DC power generated in a solar battery by a ...  
JP2011147250A
To measure a temperature of a semiconductor switching element with high accuracy.The heat generated at the semiconductor switching element 2 is transferred to a conductor layer L7 through a conductor layer L1, a base material conductor l...  
JP4727587B2  
JP2011122853A
To analyze a frequency of an audio signal generated from a consumer apparatus, and estimate a failure and an abnormality as a precursor of the consumer apparatus.An apparatus failure evaluation system is equipped with: an audio measureme...  
JP4708338B2  
JP2011115030A
To provide a forced discharge mechanism, along with a safety switch device of a storage battery, capable of improving a safety property without using an electrical control configuration when abnormal states such as a water leak or the li...  
JP4687743B2
A battery pack includes at least one secondary battery, a fuse, and a control section. The fuse is configured to cut off charge or discharge current of the secondary battery upon detection of an abnormality of the secondary battery. The ...  
JP2011101557A
To protect a power conditioner of a photovoltaic power generation system from direct lightning damage.This power conditioner protection device 1 is installed on the roof of a dwelling house H, detects thunder light and the lightning dama...  
JP2011097812A
To accurately estimate the temperature of other switching elements, based on temperature detected from one switching element regardless of in what operation mode an inverter is.An inverter device 2 is equipped with: a direct-current powe...  
JP4680609B2  
JP4679281B2  
JP4672219B2  
JP2011078297A
To provide a circuit protective device and its method.By detecting a first temperature of a first circuit by means of a temperature detection unit, it is determined whether the first temperature exceeds a temperature threshold. When the ...  
JP2011059402A
To provide a display device using light-emitting diodes (LEDs), which endures a serge voltage from an AC input and thermal stress, while assuring stable illuminance.In the display device using an LED including: a rectifying circuit 2 for...  
JPWO2009048052A1
電気接続箱10は、電源Bに接続されるFE T32と、FET32に接続されて、FET 32と負荷Lとを接続する基板側導電路18 と、基板側導電路18に対して電気的に...  

Matches 1,051 - 1,100 out of 4,849