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Matches 351 - 400 out of 1,748

Document Document Title
JP2015201910A
To prevent the spread of damage caused by a failure in a power supply circuit.When an abnormality that drive power of a microcomputer 30 drops occurs, a potential in a base terminal of a second transistor 42 drops, the second transistor ...  
JP2015171305A
To provide a power supply circuit capable of detecting an OFF failure of a switching element for reverse connection protection, without addition of a new circuit.A power supply circuit 100 includes: an FET 3 for opening and closing an el...  
JP2015165745A
To provide a power supply circuit which is capable of reducing the number of reverse connection protection elements and also capable of preventing the reduction of supply voltage to a DC power source.A power supply circuit 100 comprises:...  
JP5778398B2  
JP2015142505A
To provide a reverse battery protection device and an operating method thereof.A reverse battery protection device includes: a signal generating unit measuring a voltage of a battery and, when the measured voltage of the battery is great...  
JP5754589B2  
JP2015122863A
To provide a back-flow prevention support device for setting functions or behaviors of an element or a circuit that performs backflow prevention of a feed passage of direct current power, capable of avoiding unnecessary power loss or vol...  
JP2015100240A
To provide a protection device, capable of detecting a switch failure, and a transformation system having the protection system.A protection system 13 includes an FET 30 on a current path flowing, when a DC voltage is applied between ter...  
JP2015089290A
To prevent damage on equipment due to bonding to ON of a relay.A power feeding control device is mounted on a vehicle which can supply power between a device connected to a terminal and an onboard battery, through a first terminal and a ...  
JP2015055450A
To provide an air conditioning device capable of preventing interphase short-circuit of an AC power source in a case when electrical wirings connecting an outdoor unit and an indoor unit are incorrectly arranged.In an air conditioning de...  
JP2015046963A
To provide a power converter capable of ensuring safety easily, when switching the AC powers for system interconnection and system independence of output voltages different from each other.A power converter includes a system interconnect...  
JP2015507455A
A battery (30) includes a circuit (164, 234, 260) which combines a cell (32) with a point of contact (78, 80) alternatively. When there is a possibility that a battery has short-circuited and a signal which exists in a point of contact s...  
JP5647024B2  
JP2014533087A
The radio field device (200) used for an industrial process control system includes the power supply (202) which has a power supply output. A field device is a circuit where electric power is given by a power supply output. It is constit...  
JP5634014B2  
JP2014171346A
To provide an on-vehicle electronic control device by a power feeding control circuit that prevents malfunctions to reverse connection protection and short-circuit abnormalities of a power supply switch circuit.An on-vehicle electronic c...  
JP2014166124A
To obtain a branch power supply controller of an electric load performing branch connection of a plurality of reverse connection protective elements by sharing a power switching element.Reverse connection protective elements 120a, 120b o...  
JP2014161186A
To provide a semiconductor device having further high safety by preventing flow of an unexpected current for circuit operation even when it is reverse-connected.A semiconductor device includes a switch circuit including a first transisto...  
JP2014155249A
To solve a problem that since when an incompatible AC adaptor is used, abnormal load currents do not necessarily flow, there is possibility that an AC adaptor side overcurrent protection circuit or an electronic equipment side fuse or th...  
JP2014150667A
To protect a switching power supply from an overvoltage.A power-supply system includes: a switching power supply 20; a relay 40 provided between an AC power supply 15 and the switching power supply 20; a control device 100; an auxiliary ...  
JP5565932B2  
JP5562690B2  
JP2014131374A
To provide a grid-connection control device that prevents the occurrence of malfunction.A grid-connection control device 10A includes: an input capacitor Ci connected in parallel to a DC power supply E; a switching unit SW1 controlling c...  
JP2014126472A
To provide a grounding inspection device capable of reliably and simply performing grounding inspection on an object to be inspected at low cost.A grounding inspection device includes: an application electrode 2 formed by a conductor; an...  
JP2014115253A
To provide an electronic apparatus that can prevent wrong actions irrespective of whether the frame ground and the signal ground of the apparatus are connected or not.In the housing 20 of an electronic apparatus 101, connection state mon...  
JP5520949B2  
JP5502216B1
[Subject] A branching power supply controller of electric load which commoditizes an electric supply opening-and-closing element, and makes branching connection of a plurality of adversative conjunction protection elements is obtained. [...  
JP5505144B2  
JP2014087157A
To provide an electronic apparatus, an electronic apparatus system and a control method for the electronic apparatus, capable of securely determining that a connected power supply is a power supply for the own electronic apparatus, and c...  
JP2014082922A
To provide a semiconductor device capable of efficiently cutting off a current path at the time of reverse connection when a power supply is reversely connected to the semiconductor device.A gate of an NMOS transistor 14 is connected to ...  
JP5484597B2  
JP2014074707A
To provide a ground system connection validation system which can minimize manpower required for validating condition of a ground system after a grounding work has been done and allows for selecting an electric circuit in each area and p...  
JP2014064344A
To provide a semiconductor device for controlling electric conduction to a load by switching of a semiconductor switch element, which has excellent mountability in a simple structure which avoids damages on a control IC even in the case ...  
JP5455826B2  
JP5449593B1
[Subject] A mounted-electronic-control device by an electric supply control circuit which prevented malfunction which receives unusually [adversative conjunction protection and 天絡 of an electric power switch circuit] is provided. [Me...  
JP2014505452A
The present invention relates to protection of an electric appliance (3) to catalytic current, and apparatus (3) is connected between in-vehicle devices of a source of electric power, and a car (1). This is connected to an electrical lin...  
JP5415634B2  
JP2014023300A
To provide an overvoltage protection device capable of continuously blocking an AC power supply with certainty without human operations when an overvoltage of an AC power supply is detected, and that is small in size and light in weight....  
JP2014023373A
To provide a motor drive circuit that allows preventing the short-circuit of a battery when the battery is reverse-connected, does not generate an unnecessary voltage drop, and allows regenerating energy of a motor to the battery.A main ...  
JP2014023319A
To properly control the polarity of an output voltage of a thermoelectric element.A fifth transistor M5 to an eighth transistor M8 are N-channel FETs, and are provided in parallel to a first transistor M1 to a fourth transistor M4. A com...  
JP2014011233A
To provide a protection circuit capable of suitably protecting an internal circuit used therein even when the internal circuit consumes a large amount of current.A protection circuit (1) comprising a power supply terminal (VDD), a ground...  
JP5388632B2  
JP5383560B2  
JP5332629B2
To detect an abnormality with power lines for charging inside a vehicle in a charging system of an electric vehicle. In the charging system of an electric vehicle, a signal application section 520 of an ECU 170 applies test signals from ...  
JP5329840B2
To provide an overvoltage protecting circuit having resistance against an input voltage of inverse polarity. A drain of a first transistor M1 is connected to an input terminal 102, and its back gate is connected to its source. A first re...  
JP2013219857A
To provide a power circuit that safely prevents a shock hazard even if an input terminal for DC power is touched.A power circuit 100 includes a DC input terminal 20, an AC input terminal 10, a rectification circuit 30 for converting AC p...  
JP2013211959A
To perform appropriate circuit protection without reduction in power efficiency.An in-vehicle power-supply circuit includes: a storage battery 6; a fuse 7 connected to the storage battery 6; a series connection body 11 connected to the f...  
JP2013191635A
To achieve a connection box with which calorific values of backflow prevention diodes when solar cell strings are connected in a reversed polarity can be reduced with a simple configuration.A connection box connects a plurality of solar ...  
JP5297585B2
To protect against different voltages due to user's erroneous operation or malfunction of a micro-computer or the like without cutting a fuse. A device equipped with a different voltage protective function includes a protective switch 18...  
JP5274823B2
A power supply control circuit includes a control circuit that controls an output transistor to be rendered conductive by forming a second electrical path between a second power supply line and a control terminal of the output transistor...  

Matches 351 - 400 out of 1,748