| Document |
Document Title |
|
JP2016174457A |
To prevent a current from flowing to a load side circuit when a DC power supply is connected reversely, and to keep current flow even if the positive connection time DC power supply voltage changes from a normal voltage to a low voltage....
|
|
JP5982632B2 |
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...
|
|
JP5961854B2 |
A main control circuit (11) for driving a motor is configured so as to have: a Pch FET (T11), which is provided in series with a diode (D1), and the source (S) of which is connected to a secondary-side contact (MC2) of a main contactor (...
|
|
JP5956330B2 |
|
|
JP5953099B2 |
A control and protection system has a DC terminal (DCT), for connection to a DC bus (DCB), a load terminal (LT) for connection to a LOAD, a ground terminal (GT) for connection to an external ground bus (EGB), and an INPUT terminal for re...
|
|
JP5941128B2 |
A reverse battery protection device and an operating method thereof are provided. The reverse battery protection device includes a signal generating unit measuring a voltage of a battery, and, when the measured voltage is not smaller tha...
|
|
JP5931626B2 |
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...
|
|
JP2016101034A |
To provide an overvoltage protection circuit capable of protecting an internal device by an easy method if a commercial power source having a larger voltage than usual is connected by mistake.An overvoltage protection circuit 10 comprise...
|
|
JP2016085555A |
To prevent the damage of a circuit element due to erroneous connection or short circuit.A controller 5 of a solar illumination system 1 includes: a first switch PFET 1 interposed on a charging current path 6; a second switch PFET 2 inter...
|
|
JP2016052176A |
To provide a power supply system capable of protecting a driver at the time of inverse battery connection.A power supply system 1 includes: an alternator 20 including a rectification circuit 23 composed of rectification diodes 231 to 236...
|
|
JP5884694B2 |
The device has a common power supply wire (Wb) attached between a drain (D) of a power MOSFET (10) and a direct current battery (2) for transferring drive power from the battery to the MOSFET and a control-integrated circuit (IC) (11) vi...
|
|
JP2016015807A |
To prevent breakage of an electronic apparatus due to a short circuit between a terminal used for charging of a secondary battery and a peripheral conductive material when charging for the secondary battery built in the electronic appara...
|
|
JP5827755B2 |
|
|
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 |
An electronic circuit is provided that has a function of protecting an IC element (10) from excess current cause by latch-up. The electronic circuit includes an IC element (10) having a terminal (N1) connecting to power voltage (VCC) and...
|
|
JP5754589B2 |
To provide an electronic device which detects connection abnormality and informs an operator thereof and thereby ensures that the operator becomes aware of the state of connection abnormality.A tape printing device 100 includes an AC ada...
|
|
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...
|
|
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...
|
|
JP5647024B2 |
To provide an outlet capable of achieving further high safety and energy saving by detecting failure in an electrical apparatus connected with the outlet or failure in a connection state of a plug and the outlet.The outlet 2 includes: a ...
|
|
JP5634014B2 |
To provide a connection abnormality detection device and a domestic electric instrument can detect a connection abnormality with high detection accuracy by an inexpensive constitution, and controlling a load to prevent emission of smoke ...
|
|
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...
|
|
JP5565932B2 |
|
|
JP5562690B2 |
|
|
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 |
Voltages of respective phase lines (L1, L2, L3) of an alternating-current power supply (1) of three-phase four-line type are rectified by a full-wave rectification circuit (11), and whether an output voltage (11) of the full-wave rectifi...
|
|
JP5502216B1 |
Power supply current is supplied to a plurality of electric loads, the power supply current being generated by a DC power supply, flowing in and branching from a shared power supply switching device and then flowing in reverse connection...
|
|
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...
|
|
JP5484597B2 |
A reverse connection protecting device is provided, comprising: a charging and discharging interface defining first and second lead-in ends, and first and second lead-out ends corresponding to the first and second lead-in ends respective...
|
|
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...
|
|
JP5455826B2 |
|
|
JP5449593B1 |
When a power supply switch is fed with power from a DC power supply and closed, a power supply unit starts power feeding to an opening and closing command generation unit and continues the power feeding by a self-hold command signal from...
|
|
JP5415634B2 |
An on-board electrical system for a motor vehicle contains a first energy storage unit with a first voltage level and a second energy storage unit with a second voltage level. A control unit controls a flow of current between the first e...
|
|
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....
|
|
JP5388632B2 |
An element is protected without hampering an actual operation in the case where overvoltage that might damage the element is applied. A semiconductor device includes a first potential supply terminal 100; a second potential supply termin...
|
|
JP5383560B2 |
To obtain a higher harmonics countermeasure apparatus capable of correctly determining (preventing an incorrect determination) whether or not the connection state of current detectors for detecting a current flowing from a power supply i...
|
|
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...
|
|
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...
|
|
JP5274824B2 |
An exemplary aspect of a power supply control circuit includes a reference voltage control circuit (131) that applies a potential corresponding to a potential of a second power supply line (103) to a reference voltage node (130) connecte...
|
|
JP5231740B2 |
|
|
JP2013110907A |
To provide an electric and electronic apparatus controller which can be applied without regard to the presence or absence of a breaker, thereby being capable of safety processing on a failure caused by the application of an excessive vol...
|
|
JP5177127B2 |
|
