Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 451 - 500 out of 1,773

Document Document Title
JP3171998U
[Subject] In the time of connection construction with a power supply in initial setting in a communication apparatus of a mobile communications method, etc., etc., a power supply incorrect connection prevention circuit which avoids incor...  
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...  
JP4813324B2  
JP2011199961A
To provide a reverse flow prevention circuit for power supplies that can be used together with high-voltage circuits and can be embedded in an IC chip.The reverse flow prevention circuit is constructed as follows. The drain terminal of F...  
JP2011188592A
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...  
JP2011188629A
To provide an overvoltage protection device which cuts off a voltage applied to an electronic apparatus, and maintains the voltage cutoff state to prevent a damage to the electronic apparatus due to overvoltage application when detecting...  
JP4773644B2  
JP2011160560A
To prevent damage of DC distribution equipment in the DC distribution equipment having possibility of erroneous connection of an AC power supply and a DC power supply in the case of construction.A device for protection of input in the DC...  
JP4734675B2  
JP2011135665A
To provide a small inexpensive protector, in which a rush current preventing function, a power reverse connection protection function, an input momentary power failure protecting function, and a voltage rise protecting function by a rege...  
JP2011135633A
To provide a reverse connection preventing circuit for reliably preventing reverse connection while reducing the cost of an entire system using the reverse connection preventing circuit.A latch relay 22, a second diode 23 for reverse con...  
JP4719776B2  
JP4718384B2  
JP2011130621A
To provide a reverse flow preventing circuit for power supply circuit capable of reducing voltage drop.A transistor Q1 is connected in parallel with a diode D1 for preventing reverse flow. When a positive electrode and a negative electro...  
JP2011101525A
To apply a voltage of a predetermined polarity to a load circuit regardless of the mounting orientation of a DC power supply, while minimizing a voltage drop in a power input circuit.The power input circuit includes: a transistor 31 whic...  
JP4685758B2  
JP2011083074A
To provide an erroneous connection protector wherein in case of erroneous connection, it is possible to fuse a current fuse to maintain a safe state.A direct-current device protector is equipped with a current fuse 21 connected in series...  
JP2011083046A
To provide a power supply control system which prevents damage to a load device and a power supply system when power supply is restarted after stopping the power supply in an unexpected accident, such as disaster.The power supply control...  
JP4648195B2
A communication circuit enables protection against improper wiring and high speed data communication over long wiring distances using only three wires including the power supply lines. The communication circuit uses one of the two AC pow...  
JP4612855B2  
JP4543483B2  
JP4543501B2  
JP4541034B2  
JP2009089529A5  
JP2010181331A
To provide a technology for preventing beforehand a noise trouble of a telephone line or a burnout accident which may occur when an AC adapter which is not an annexure (a genuine unit or a standard article) of a VoIP adapter is connected...  
JP2010181255A
To reduce the number of power lines of a load and the number of switching elements and current sensors.Nine first to ninth heaters 2-1 to 2-9 for heating a heat plate 1 are connected to respective intersection parts obtained by virtually...  
JP2010172149A
To provide an overvoltage protection device which when detecting an overvoltage applied to an electronic apparatus, cuts off application of the overvoltage to the electronic apparatus and maintains the cutoff state to prevent the breakag...  
JP2010166679A
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 ...  
JP4483751B2  
JP2010130742A
To turn on a switch of MOSFET to supply power to a desired circuit without use of a boost circuit to prevent reverse current when a battery is reversely connected using the MOSFET. A load circuit is provided between the source of MOSFET ...  
JP4474077B2  
JP4463963B2
Along with the expansion of the application range of solar power generation systems, connection to a single-phase 100-V system is required. To most easily meet this requirement, a non-insulated inverter with a single-phase two-wire 100-V...  
JP2010108874A
To provide an electronic apparatus capable of surely detecting grounding of a self-grounding terminal even in case of connecting with another electronic apparatus through a signal cable.In the electronic apparatus 1, a terminal section 4...  
JP2010110210A
To provide a new and improved protecting circuit for an external battery pack, especially for the battery pack for a cellular phone.The protecting circuit is equipped with: an assembly of switches which controls the connection of the out...  
JP2010044521A
To provide an inductive load drive circuit for reducing power consumption in normal time, and suitably preventing occurrence of large current in battery reverse connection.The inductive load drive circuit 10 has: a switch circuit 12 prov...  
JP2010041759A
To provide a power distribution system which can prevent a DC load connected to a DC outlet from being broken through misconnection.The DC power distribution system is laid within a building which is equipped with a DC distribution panel...  
JP2010022163A
To provide a charge cable, a charge control device, and a vehicle charging system, capable of detecting the abnormal states of the charge cable, including the disconnection of a control line through which pilot signals are communicated.T...  
JP2010011535A
To provide an apparatus for connecting parallel operation generators, which does not need a plug socket for exclusive use in parallel operation, when connecting and operating a plurality of generators in parallel, and in which the output...  
JP2010011536A
To provide an apparatus for connecting parallel operation generators, that starts or stops a plurality of generators slated to parallel operation, via a single remote control.The apparatus connects and operates two generators A and B via...  
JP2010011598A
To provide an inductive load driving circuit which reduces power consumption in a normal operation and properly prevents a high current from being generated when a battery is connected in the opposite direction.The inductive load driving...  
JP2010011537A
To provide an apparatus for connecting parallel operation generators, which prevents the output of the other generator from appearing as it is in the terminal of a plug having come off, by detecting a current between a plurality of gener...  
JP2009284688A
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 res...  
JP2009261064A
To provide electronic equipment wherein it is possible to reduce sneaking of current and malfunctions of an internal circuit.The electronic equipment 7 includes: an electric circuit 10 having a control circuit 19 that controls supply vol...  
JP4348697B2  
JP2009236594A
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 ...  
JP4344569B2  
JP2009207273A
To detect disconnection of a distribution line inexpensively, and to determine a failure of a radio communication unit.A system for detecting disconnection of a high voltage distribution line comprises a plurality of radio communication ...  
JPWO2007110913A1
Protect a Rising pressure switching element etc. in the system interconnection inverter device linked with an exchange electric power system, without using over-current protection elements, such as a fuse, etc., even if it is a case wher...  
JP4305875B2  
JP2009147994A
To provide a power supply control circuit in which an overvoltage protective circuit normally operates without being influenced by a reversely connected circuit of a power supply with respect to a counter electromotive voltage generated ...  

Matches 451 - 500 out of 1,773