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JP3505618B2 |
To provide a feeder system that prevents an overcurrent from flowing to a load, prevents a circuit element from being damaged and burned by the overcurrent generated in a pickup coil and that generated in a resonance capacitor, can displ...
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JP3498251B2 |
PURPOSE: To enhance the accuracy and reproducibility of a temperature detection circuit by making a binary decision whether the temperature of a semiconductor exceeds a predetermined level based on the direction of differential current b...
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JP3497926B2 |
To quickly respond to the variance of pressure in a battery and be broken even by comparatively small pressure to automatically interrupt the current of an electric circuit by providing a member to be broken which is received in an enclo...
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JP3497919B2 |
PURPOSE: To provide a pressure cut off sensor capable of surely stopping use of a storage battery in which inside pressure is abnormally increased and ensuring safety by installing specified constitution. CONSTITUTION: A pressure cut off...
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JP2004037135A |
To provide an apparatus and a method for monitoring a dissolved gas in oil that can send back the oil into oil equipment without allowing the oil to come into contact with the air after the monitoring operation of oil.A non-bellows-type ...
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JP2004040922A |
To attain temperature detection, and protection from overheat and overcurrent of an inverter circuit.This inverter circuit device includes a switching circuit 9 consisting of a plurality of switching devices in an inverter circuit, and a...
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JP2004032876A |
To provide a general home with a simple, secure, and low-priced vibration restraining device.This device has a plurality of power input terminals, and in a power source for a general home each input terminal becomes single-phase two line...
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JP3488082B2 |
To prevent fire of a vehicle from occurring even if a wire harness is short-circuited, by shutting off a part between a battery and a wire harness when there is a possibility of generation of a trouble on the wire harness. When an air ba...
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JP3488057B2 |
To provide vehicular power feed equipment that delivers power with reliability through suppression of heat caused by a power-line switch means set in a power line and of its resultant deterioration in quality. A vehicular power feed equi...
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JP2004501506A |
An anti-hot spot device for at least one photovoltaic module (10) including: a photovoltaic module shunt diode (20), means (36, 40) for detecting at least one operating characteristic of the photovoltaic module, and means (22, 34) for is...
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JP3483098B2 |
To obviate the need to enlarge the capacity of a PTC element itself by detecting the temperature rise by the heat generated at a narrow part with a temperature-detecting element, such as a PTC, etc., through an insulating layer, and cont...
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JP3471207B2 |
To provide a device for controlling the temperature of a battery set for an electric vehicle which is capable of detecting the abnormal temperature of each part of the battery, set precisely avoiding complicating the detecting circuit st...
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JP2003333803A |
To provide an overheat preventing device for a motor, which is quick in response to heat and is superior in followability with respect to a sudden temperature rise.A temperature fuse 3, which breaks current application to the motor 3 by ...
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JP3456221B2 |
PURPOSE: To provide a circuit for driving a stepping motor through a microprocessor in which safety is ensured against runaway of the microprocessor or the ON failure of a switching element for turning the exciting current ON/ OFF for ea...
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JP3453055B2 |
To provide an electrical device comprising a conductive polymer and having an improved characteristic. At least one of the electrodes of the electrical device comprising an element made by at least two electrodes and the conductive polym...
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JP3451379B2 |
PURPOSE: To protect the power supply circuit and the peripheral circuit of a pachinko machine against breakdown due to overheat. CONSTITUTION: When the level of current being fed to an indicator deviates a predetermined allowable range, ...
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JP3447161B2 |
To surely perform grounding of a stabilized power circuit, while preventing an overcurrent due to a short-circuit accident to a motor driver provided in an air conditioner for a vehicle. A ground terminal 4a of a motor driver 4 controlli...
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JP2003259515A |
To provide an electric apparatus which allows user to perform foreign matter and defect identification and noise discrimination at the same time, by properly combining several kinds of structure of electromagnetic sensors, their arrangem...
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JP3444014B2 |
PURPOSE: To provide a circuit portecting comparator circuit which can secure a latch operation after inversion of an output signal without requiring the latch and reset functions. CONSTITUTION: A comparator circuit has a current mirror c...
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JP2003244836A |
To provide a system for alarming heat generation at the terminal part of a breaker by which an abnormality can be known, without opening a door on a near-by panel, even if away from a panel to which the abnormality occurs, and that can b...
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JP3440042B2 |
To prevent unwanted emergency operation signal from being outputted to a device to be controlled, when a circuit related to the outputting of the emergency operation signal fails. This circuit has a capacitor for storing electric charges...
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JP2003235278A |
To provide an overcurrent detector circuit in which a cost is reduced by decreasing the number of electronic components with a simple constitution, and to provide an overcurrent preventing circuit.When a shunt resistor 4 is heated by the...
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JP3433470B2 |
PURPOSE: To provide a load driving circuit equipped with a diagnostic function which can eliminate the port of a diagnostic control circuit. CONSTITUTION: At a control signal generating circuit 13, (a) output is set at 'L' corresponding ...
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JP3431011B2 |
To provide a protection circuit which can protect circuit patterns on a printed circuit board and circuits without burning out, even when an overcurrent is applied through a communications line. In a protection circuit, provided between ...
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JP2003209922A |
To provide a switching apparatus that can effectively avoid, by means of a simple construction, a variety of harmful effects caused by heat generated from a semiconductor switch or an engine.A temperature sensor to detect the temperature...
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JP2003189460A |
To provide a protective circuit against an overcurrent which enables power cut or easy adjustment of the time of automatic return.This protective circuit detects the abnormal heating accompanying the overcurrent of an external electrical...
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JP2003520388A |
Resettable circuit interrupting devices, such as an IDCI, are provided having a reset lockout and independent trip.
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JP3419168B2 |
To miniaturize a transformer itself required for the continuous operation of a system by miniaturizing the capacitance of a resistor for the prevention of neutral point unstable phenomena to be inserted into a tertiary winding. A thermo-...
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JP2003169418A |
To reduce the ON-resistance of a drive circuit while overheat protection is performed.Self-protection against overheat is performed by an overheat cut-off part 33 in a power device PD3. A charge pump 36 is provided outside the power devi...
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JP2003164060A |
To provide an inexpensive protector which surely cuts off a circuit when a discharge lightning arrester pipe keeps discharging for a long period, and is free from generation of phenomena like a disconnection or the like when the discharg...
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JP2003164056A |
To prevent a false operation by detecting earthquake vibration from vibrations in daily life or a shock.A power source circuit 1 for driving, a seismoscope 2 detecting vibration, an earthquake decision part 3 for loading algorithm with a...
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JP3409438B2 |
PURPOSE: To obtain a monitoring method in which a room-temperature-converted gas pressure inside a container is operated precisely by using the ambient temperature of a gas-insulated switchgear and which properly monitors a gas pressure....
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JP2003153432A |
To provide a thermal protection control device capable of always making a detection level for thermal protection control into an optimal value and contributing to a quick thermal protection by reducing a deviation of detection speed.This...
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JP3402933B2 |
To previously prevent a phenomenon of heating, smoking, firing, etc., generated by abnormality of a battery protecting circuit, by interrupting carrying of a battery current based on a detection result of leakage, in an organic electroly...
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JP3400185B2 |
PURPOSE: To realize a safety device and breaker by which a combustion appliance cannot be used even when a fuse terminal is short-circuited by a lead wire, etc., without using an internal fuse. CONSTITUTION: A safety device 1 is equipped...
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JP3398324B2 |
To provide a current detection sensor for a cable and a current detection system for preventing and protecting the vehicle wiring, especially of an automobile or the like from the damages due to overcurrent, etc., by reducing the manufac...
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JP2003510523A |
The invention relates to an electric starter for an internal combustion engine, having a thermal monitoring protector (4) for turning the starter (1) off when its limit operating temperature is reached. The starter is characterized by a ...
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JP2003079048A |
To provide an overvoltage-limiting-element deterioration detection circuit and its structure, which is connected with a heat-generation detection circuit to detect a signal and to output the signal outside when heat is generated in a lig...
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JP2003072487A |
To provide an onboard power source control device capable of reduc ing the size and weight of the device constitution by omitting a heat radiating plate of a semiconductor relay.In this onboard power source control device 1, when overhea...
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JP3384522B2 |
To turn on or off semiconductor switches based on the current-duration product of a current flowing through them, the device of the present invention detects an ambient temperature of the harness and, based on thus detected ambient tempe...
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JP3383688B2 |
PURPOSE: To provide a circuit device for surely identifying disconnections of line to a load for a wider load current range in connecting a load. CONSTITUTION: A circuit device has a measured resistor-connecting body 2 and a diagnostic d...
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JP2003507871A |
A circuit breaker comprising: a housing (12) having a line phase connection and load phase connection (34,36) accessible from an exterior of said housing. A conductive path is provided within said housing between said line and load phase...
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JP2003037934A |
To overcome the problem such that a conventional method using a fuse is inadequate for an X-by-wire system in the automobile industry. A protection apparatus 10 for a power supply is provided with a current detecting apparatus 12 provide...
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JP2003504993A |
A method and apparatus for providing a more reliable protection device and an improved PIC power integrated switch. Accordingly, the over-temperature status of the switch as well as the overcurrent status of each of a plurality of ports ...
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JP3374361B2 |
A method of detecting an abnormal electric current in a vehicle to detect passage of an abnormal electric current through an electric wire for establishing the connection between a load to which electric power is supplied and a power sou...
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JP2003032879A |
To provide a method of detecting a failure of a retaining brake of a motor drive apparatus which detects an abnormality of a retaining brake such as a failure, a wire breakage, or the like, and can prevent an operation defect such as a f...
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JP3371729B2 |
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JP2003023710A |
To solve the problems, in the internal electrode type partial discharge detecting device of an internal antenna system, an insulating gas inside a metal container is forced to be discharged, when mounting and removing a partial discharge...
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JP3368724B2 |
To continue operation of a generator by automatically selecting and cutting off a load even at accident time of a boiler or steam piping. In private power generation equipment which has a steam turbine power generation equipment of const...
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JP3367591B2 |
To provide a charger which can detect the deterioration of a thermostat before starting to charge a storage battery pack. A charging control circuit 112 lets a current flow to the thermostat TH of a secondary battery pack 150 by turning ...
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