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Patent Searching and Data


Matches 251 - 300 out of 1,753

Document Document Title
WO/1992/003867A1
Surge suppressor device (10) for connection into a circuit, comprising a transient suppressor (14) and indicator means (16, 18). The transient suppressor (14) limits transient voltages in the circuit. The indicator (18) provides indicati...  
WO/1992/002066A1
A process control instrument (10) receiving a DC current from a two wire loop (11, 43) having overcurrent protection (16, 52) and reverse current protection (20, 54) circuits interposed between a two wire loop (11, 43) and a process cont...  
WO/1990/009694A1
A protection device (1, 10) for connection between an electrical supply and electrical apparatus includes a circuit breaker to interrupt the supply when an open neutral or live conductor is detected. The protection device includes means ...  
WO1990005918A3  
WO/1990/007813A1
Short-circuits due to faulty installation may occur in an intermediate circuit inverter or in a load connected to the latter. If under normal operating conditions the intermediate circuit voltage is switched through to the short-circuit ...  
WO/1990/006012A1
An integrated semiconductor circuit for use in a low voltage (1.5 - 2 V) battery operated device is provided with a protection circuit against reverse connection of the battery. The protection circuit takes care that the substrate is alw...  
WO/1990/005918A2
A measurement circuit in the output circuit of the sensor, for example, determines the polarity of the user circuit applied to its terminals. Whichever of the two states is detected is stored in a storage element and the correct driver i...  
WO/1989/011338A1
A circuit arrangement for the high-voltage supply of an electrostatic filter, in particular an electrostatic soot separator for diesel engines, has a high-voltage generator (20) located on a current supply (15) and a shielded high-voltag...  
WO/1989/011747A1
An electrical safety apparatus arranged to be connected between an electrical power source and a load to provide protection against electric shock due to, for example, the insertion of probes or needles into a potentially live socket by ...  
WO/1988/006364A1
A three-conductor booster cable assembly (100) for connection of a source of DC power to the terminals of a battery requiring recharging. The uniqueness of this assembly is based upon a combination of features including (a) modification ...  
WO/1986/002500A1
A method and a device for detection of an electric load (9) for the purpose of allowance of its connection to a power voltage from an electric voltage source over electric conductor means (7, 8). They are normally kept free from power vo...  
WO/1986/001299A1
Circuit for continuously controlling the grounding resistance of electric apparatuses of which the electrically conducting components susceptible of being touched, such as the casing, are connected by a grounding wire to a ground potenti...  
WO/1984/002808A1
This invention pertains to an apparatus (10) for monitoring and protecting a plurality of contactor coils (14A-E) and coil drivers (16A-E) from damage owing to short circuits, and preventing the concurrent energization of more than a pre...  
JP6603310B2  
JP6583321B2  
JP6584336B2  
JP2019161895A
To achieve ensuring the operational safety of a battery adaptor itself in supplying electric power to an electronic apparatus.A battery adapter 150 is installed with at least one of batteries 167, 168 to supply electric power from the ba...  
JP6569608B2  
JP2019146414A
To provide a control device that stops power supply through a first FET and a second FET when the first FET source (or drain) and a gate are short-circuited.In a control device, a booster circuit 43 raises voltage at one end on the boost...  
JPWO2018070186A1
It is in providing the arithmetic unit which controls a reverse connection protection circuit and this reverse connection protection circuit by the state where the electrical control unit is made to stand by, and the electrical control u...  
JP6555181B2  
JP6551464B2  
JP2019121084A
To prevent power exceeding power feeding capacity of a power transmission device from being received.An electronic apparatus comprises power receiving means for receiving power from a power transmission device, type determination means f...  
JP2019514337A
Here, the improved relay protection system which can detect the short circuit state to the ground in the output of a relay is provided. The relay protection system can carry out bias of the output of a relay. The output of a relay can be...  
JP2019080444A
To reliably detect a failure of a reverse connection protective element.A power supply device has a plurality of semiconductor switches, driving means (FET 19-21, 23, and 24) for driving a load (motor 30) by an on/off state of the semico...  
JP6507287B2  
JP2019054500A
To suppress a circuit area of a reverse connection protection circuit.A switching element 51 includes a power supply side terminal 51a electrically connected with a power supply 2, a load side terminal 51b electrically connected with a l...  
JP2019509009A
A device and a method for protecting load of the polar susceptibility of DC power supply circuit containing load of polar susceptibility combined with a relay combined with a power supply and a power supply and a relay which were improve...  
JP6490922B2  
JP6466023B2  
JP2019017128A
To precisely detect a fault of a protection circuit for protecting a device connected to an external power source with a simpler structure when the external power source is reversely connected.In a reverse connection protection device fo...  
JP6452174B2  
JP2018207680A
To provide an electric power conversion system and a power inverter circuit in which damage caused by an electric conduction when connecting and increase of a body type are suppressed.A first electric circuit 30 and a second electric cir...  
JP6446485B2  
JP6424218B2  
JP2018157691A
To provide a power supply control circuit and a power supply control method for avoiding abnormal power supply due to an incorrect connection without newly adding a dedicated signal line between connectors, when connecting the devices.A ...  
JP2018157621A
To provide a power supply control device, a power supply control method, and a computer program that can prevent the burnout of internal terminals and external terminals generated by arc discharge.A switch 21 is an N-channel type FET. An...  
JP6391663B2  
JP2018143029A
To provide a connection circuit of a connection device that can detect miswiring of the connection device that can protect against overcurrent promptly while preventing the melting of a fuse in the occurrence of miswiring etc.A connectio...  
JP6386606B1
[Subject] The connection circuit of the connection appliance which can detect the faulty wiring of the connection appliance which can protect an over-current quickly is provided preventing blowout of a fuse, when faulty wiring etc. are g...  
JP6351696B2  
JP2018097973A
To provide a light-emitting device capable of determining whether a ground fault has occurred in a turned off state without using a shunt resistor for the determination.A light-emitting device (1) includes a current path (11) including a...  
JPWO2017145247A1
Low-voltage circuit 8 where electrical household appliances and electrical equipment 100-1 output a low voltage, and low-voltage terminal 5, It is arranged between high-voltage terminal 4, and low-voltage circuit 8 and low-voltage termin...  
JP2015213420A5  
JP2018074874A
To provide an electronic control device that can protect against negative voltage and overvoltage without providing a negative voltage protection diode and an overvoltage protection Zener diode.An ECU 1 comprises: a terminal 3 to which p...  
JP2018512031A
A reverse current protection (RCP) circuit including a RCP switch combined between a power supply rail and a buffer power supply node is provided. A control circuit in which an electric power supply is carried out by buffer service volta...  
JP6297758B1
A reverse current protection (RCP) circuit including a RCP switch combined between a power supply rail and a buffer power supply node is provided. A control circuit in which an electric power supply is carried out by buffer service volta...  
JP2018033279A
To provide a power supply device and a television apparatus that are individually capable of performing protection operation that is appropriate and safe and has the high degree of freedom, depending on various conditions for an over-vol...  
JP6277151B2  
JP6268140B2  

Matches 251 - 300 out of 1,753