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Patent Searching and Data


Matches 1,001 - 1,050 out of 4,843

Document Document Title
JP5348979B2
To provide a load controller and a load control method which can bring a load back to a normal operating state in a short time as much as possible when the load operates differently from a desired operation due to the occurrence of an ea...  
JP2013233058A
To be able to properly perform charge control to a battery even if a normal detection signal is not outputted from a temperature sensor in a battery pack, in an electrical apparatus operated by receiving a power source from the battery p...  
JP2013229965A
To provide an energization circuit protection device, capable of intercepting a conduction circuit by securely detecting heating in a circuit for controlling to drive a load by PWM driving a semiconductor switch.When driving a load RL by...  
JP2013230021A
To improve completeness of the shutdown of an electric current supplied from a power source to a load.The safety device 100, which can shut down an electric current supplied from a DC power source 2 to an electric heater 3 through a supp...  
JP2013229966A
To provide a protection apparatus for a current flowing circuit capable of appropriately switching a control circuit for controlling driving and stopping of a load into a sleep mode.A protection apparatus comprises: a semiconductor relay...  
JP2013229963A
To provide a protective device of an energization circuit which can turn a semiconductor relay circuit 11 on safely, after it is interrupted.Timing by an interruption flag cancellation timer is started when the semiconductor relay circui...  
JP2013229964A
To provide a protection apparatus for a current flowing circuit capable of appropriately switching a control circuit for controlling driving and stopping of a load into a sleep mode.A protection apparatus comprises: a semiconductor relay...  
JP5337052B2
An overcurrent sensing apparatus comprises current sensing circuitry configured to generate an analog output signal representative of a sensed current; an analog to digital converter configured to receive the analog output signal and gen...  
JP5331206B2
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),...  
JP2013223359A
To provide an overhead wire abnormality monitoring system capable of directly and surely detecting different abnormalities, such as a disconnection and a fluctuation of an overhead wire without performing erroneous detection by using an ...  
JP2013219980A
To provide a load drive device that contributes to simplifying a device configuration by detecting a physical value related to a semiconductor switching element without requiring any elements dedicated to detecting the physical value.In ...  
JP2013211950A
To inexpensively and accurately detect on-operation malfunction (opening of a relay contact) of n relays.A power conversion device comprises: a forward converter for rectifying AC voltage of an AC power supply to convert to DC voltage; a...  
JP2013207854A
To limit current at high speed when overcurrent flows.In an overcurrent protective device 30, if overcurrent flows into a PTC device 14, the PTC device 14 limits the overcurrent. Heat generation in a trip state closes a bimetal switch BS...  
JP2013192279A
To provide a power generation apparatus which is advantageous for detecting submergence on early stage.The power generation apparatus comprises a casing 300 including an accommodation chamber 301, a power generator 200 disposed within th...  
JP5300693B2
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 dam...  
JP2013184639A
To provide a technology of identifying a ground wire susceptible to overheating.A hybrid vehicle 2 includes: a PCU 10 which is connected to a body 100 via a plurality of wiring harnesses 21, 23 28; temperature sensors 31, 33 and 35 which...  
JP5291047B2
An electrical circuit protection system and method thereof are described. A temperature detection unit is used to detect a first temperature of a first circuit to determine whether the first temperature exceeds a temperature threshold. W...  
JP5293083B2
To protect a protective transistor from thermal damages, without fail, while suppressing unnecessary overheat detection with respect to the protective transistor. When the temperature of the diode 3 detected becomes higher than a protect...  
JP2013183495A
To protect a resistor from overheat and ensure a system activated state in a device in which the resistor is shared between two precharge circuits respectively charging two smoothing capacitors.When a system activation is performed by co...  
JP2013169113A
To provide a wire protective device for vehicle which can protect a wire by calculating the temperature of the wire at a low cost with a high speed.In a wire protective device 100 for vehicle, an additional temperature-rise value ΔT1(n)...  
JP5274155B2
An over current protection device that surely prevents a burnout by opening a power supply circuit to an electric compressor upon an over current, includes a heater which generates heat by a current flowing through the electric compresso...  
JP2013165631A
To provide a switching circuit and a battery pack that can protect its switching element from overheating even when a trouble such as the one in which a control terminal of the switching element is short-circuited with another terminal h...  
JP2013146121A
To provide a power supply system capable of stopping an output of power from a power supply such as a solar cell panel at the time of occurrence of a large-scale disaster.A power supply system includes: a first power output line 5 and a ...  
JP5247747B2  
JP2013132102A
To provide an electrical apparatus capable of exactly and promptly suppressing an overcurrent.The electrical apparatus includes an electric circuit board 100 and a protective circuit that controls power supply to the electric circuit boa...  
JP2013110838A
To provide a technology capable of preventing discharge time of a capacitor from elongating due to current produced by counter-electromotive force of a motor at collision.An electric vehicle 100 includes an inverter 4 for supplying power...  
JP2013110849A
To make it possible to prevent a load apparatus from being damaged even when a second overcurrent relay is returned.A power supply circuit comprises an overcurrent protective device 30 connected in series with an electric motor 21 driven...  
JP2013085469A
To provide a protection device for a load circuit which can protect a load circuit by simulating a fuse.Pseudo heat capacity Cth*, which is smaller than heat capacity of wire used in a load circuit is set to calculate temperature of the ...  
JP5177842B2  
JP5181743B2
A power apparatus of the present invention includes a main body case, a plurality of power supply elements provided inside the main body case, and a fire-extinguishing agent tank facing each of the plurality of power supply elements. An ...  
JP5157091B2  
JP5145615B2  
JP2013031354A
To provide a circuit protection device and protection method which avoids excessive increase in current or temperature in a transistor and prevents a pulse width modulation unit, a transistor, a processor or the like from burning down.A ...  
JP2013024718A
To make it possible, in a temperature abnormality detecting sensor, to individually find out in which of multiple temperature detecting elements any temperature abnormality has been detected and reduce the number of conductors laid betwe...  
JP2013021850A
To provide an overheat protection circuit and a communication device, capable of securely performing the overheat protection of a device and the cancellation of an overheat cause.An overheat protection circuit 101 is operated by receivin...  
JP5130985B2  
JP2013013075A
To provide an improved substation fault monitoring and diagnostics system, and method.A fault monitoring system for an electrical substation includes one or more arrays of acoustic sensors placed around a substation boundary and configur...  
JP5121991B2  
JP5114599B1
[Subject] The certainty of interception of current supplied to load from a power supply is raised. [Means for Solution] The present invention is provided with the following. Short circuit line 10 which is safeguard 100 which can intercep...  
JP2012257353A
To provide a display device and a display system that are useful in the event of an earthquake.The display device includes: a display section; a vibration detection section for detecting a vibration; a determination section for determini...  
JP5108414B2  
JP2012244789A
To provide appropriate heat resistant protection according to an actual using situation of a high voltage cable, in a high voltage cable protection system.A high voltage cable protection system 10 limits output of a rotary electric machi...  
JP2012242383A
To provide an arc flash detection system that reliably detects arc flash events and mitigates undesired nuisance trips of circuit protection devices.A sensor includes a sensor head 102 including an acoustic detector 106 configured to rec...  
JP5092878B2  
JP5083175B2  
JP5075372B2  
JP5073733B2  
JP5073204B2  
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...  

Matches 1,001 - 1,050 out of 4,843