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JPH0740183Y2 |
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JPH0739287Y2 |
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JPH07221261A |
PURPOSE: To improve a power semiconductor device having a temperature sensor for controlling the power semiconductor device from a conducting state to a higher resistance region by turning a controllable switch when the temperature of th...
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JPH0735781Y2 |
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JPH07212961A |
PURPOSE: To provide an overheat protector for protecting a liquid crystal display or an electric circuit from overheat cause by heat from a light source. CONSTITUTION: The overheat protective device is for protecting a liquid crystal dis...
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JPH0774764B2 |
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JPH07202584A |
PURPOSE: To provide the overheating protection circuit free from a malfunction of the overheating protection circuit at low temperature even in the case where fluctuations in the power voltage are frequent. CONSTITUTION: The output signa...
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JPH07203627A |
PURPOSE: To prevent a heating unit from causing its temperature decrease even which an element is arranged into contact with the heating unit by using an element, in which the element itself performs prescribed heat generation, as the sa...
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JPH07193986A |
PURPOSE: To provide a method for detecting an abnormality in early stage in order to avoid such an accident as the joint or terminal of a power cable failed abruptly due to an abnormality even under the working temperature. CONSTITUTION:...
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JPH07175036A |
PURPOSE: To increase the degree of freedom in design relating to packaging patterns of a circuit substrate without limiting the pattern width of a grounding line by forming a wiring for a temp. fuse so as to commonly use this wiring as t...
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JPH07177798A |
PURPOSE: To close a guide vane and to stop a water wheel safely when a digital governor fails by providing a backup closing circuit for closing a guide vane in a gradually closing mode by controlling an electric servo motor. CONSTITUTION...
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JPH07170653A |
PURPOSE: To provide a protection device of a power line which does not require the replacement of a breaking member such as fuse. CONSTITUTION: In a power line protection device 10 which is inserted into a power line 3 connecting a power...
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JPH07161276A |
PURPOSE: To easily attain a large current and variability in an interrupted current value by providing an electrical bypass element in parallel to a shape memory alloy of high transformation temperature. CONSTITUTION: A shape memory allo...
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JPH07160302A |
PURPOSE: To securely prevent a heater from entering an abnormal heating state by detecting the switching function of a heater control relay before the heater causes abnormal heating. CONSTITUTION: A controller 8 performs ON-OFF control o...
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JPH07161481A |
PURPOSE: To provide a mixture light lighting system, which can prevent breakdown and failure of a HID lamp and a stabilizer when the BID lamp is fitted wrong and which encourages a user to correct the connection and of which circuit stru...
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JPH07154918A |
PURPOSE: To surely operate a safety device at flame by stopping the power supply to an electric apparatus in case that both a smoke sensor and a gas sensor detect smoke and gas. CONSTITUTION: A smoke sensor S1 and a gas sensor S2 are arr...
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JPH0757061B2 |
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JPH0725644Y2 |
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JPH0730554U |
[Purpose] It is an object of the present invention to have a quick response and a simple structure of an opening / closing element for detecting abnormal overheating of a conductive portion. [Constitution] A metal container 25 is closely...
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JPH0730553U |
[Purpose] The purpose is to unitize and simplify the configuration for detecting abnormal overheating of the conductive portion. [Constitution] A support porcelain that supports the conductive part is provided with an opening / closing e...
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JPH0724886Y2 |
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JPH0750773B2 |
An on-chip thermal shutdown circuit senses the average junction temperature of an integrated circuit device. The on-chip circuit generates a signal when the junction temperature exceeds a preset limit. This signal may then be used to con...
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JPH0748929B2 |
A MELF (Metal Electrode Face Bonding Device) surge absorbing element which can be connected across a pair of input lines of an electronic device. The surge absorbing element is secured in electrical contact with the input lines by a cond...
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JPH0748915B2 |
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JPH0727250U |
[Purpose] When exporting electrical products to different destinations, ensure that they meet the safety standards of each destination without changing the circuit. [Constitution] A safety standard certified fuse that meets several diffe...
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JPH0746885B2 |
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JPH0738011B2 |
An abnormality diagnosing system and method for high voltage power apparatus wherein a plurality of detectors for detecting abnormalities of the high voltage power apparatus and providing outputs indicative thereof are disposed to detect...
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JPH0734395B2 |
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JPH0734604B2 |
PURPOSE:To detect a high-frequency electromagnetic field generated by partial discharge in a vessel at the time of insulation deterioration with high sensibility from the outside of the vessel by arranging a slit antenna near an insulato...
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JPH0734605B2 |
PURPOSE:To facilitate attachment of an aerial to existing equipment by detecting from the outside of a metallic case a high-frequency electromagnetic field generated by partial discharge in the electric equipment having a charged part en...
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JPH0794337A |
PURPOSE: To lessen an oil-immersed electric equipment in installation space and to enhance a site in availability by a method wherein an oil spouting tank is placed over an equipment tank. CONSTITUTION: An oil spouting tank 20 and a cons...
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JPH0794335A |
PURPOSE: To obtain an abnormality detector an oil-immersed induction machine pressure-relief plate, wherein the detector is capable of accurately detecting abnormalities in a pressure-relief plate and a gasket in an early stage without o...
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JPH0794336A |
PURPOSE: To detect that a cooling pipe is clogged or not in its early stage by a method wherein a water gathering chamber is provided on the upper part of a water intake pipe, and the level of water surface in the water gather ing chambe...
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JPH07503356A |
(57) [Summary] Since this publication is application data before electronic filing, summary data is not recorded.
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JPH07503358A |
A current limiting short-circuiting protector is disclosed which utilizes an electronic and thermal feedback principle for achieving precise and rapid release of the protector, which can be readily reset. The principle utilizes a non-lin...
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JPH0775249A |
PURPOSE: To provide a surge absorbing circuit for protecting a circuit from a surge voltage intruding afterward even when a metallic oxide varistor is subjected to short-circuited breakdown and a fuse is melted. CONSTITUTION: When a surg...
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JPH0767245A |
PURPOSE: To prevent fire due to overheating of a power plug caused by insufficient contact. CONSTITUTION: A power supply circuit 2 for a load 8 is provided with a safety unit 5 comprising a sensor 6 for detecting the temperature of a pow...
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JPH0767246A |
PURPOSE: To provide a protective circuit for electric equipment in which abnormally heated state can be stopped positively by a simple and inexpensive method. CONSTITUTION: Upon occurrence of short circuit of a motor or abnormality in an...
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JPH0763619A |
PURPOSE: To provide a temperature detecting apparatus which can avoid a break in a device in a simple structure even when a forced cooling is needed. CONSTITUTION: A wiring board 31 has conductive films of wirings printed on both surface...
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JPH0718746B2 |
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JPH0714254B2 |
A relay includes a movable element having first and second portions separated from each other. The first portion can be moved between a first stable position corresponding to a state where contacts are closed and a second stable position...
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JPH0744203A |
PURPOSE: To extend the operating period of a circuit even in environment exposed by gamma rays by providing plural equal MOS element systems and alternately continuing each system in a specific period so as to separate each in-use system...
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JPH0746752A |
PURPOSE: To provide a display apparatus which can prevent temperature rise and enhance the durability of a temperature detecting switch. CONSTITUTION: A display unit 1 where a plurality of discharge lamps 2 connecting a filament 2a to a ...
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JPH079042U |
[Purpose] Provided is an overheat monitoring device for an energized conductor that can easily detect overheating of a conductor to be temperature-detected without disturbing the electric field distribution around the conductor. [Constit...
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JPH0728561A |
PURPOSE: To secure the data saving time by reducing the operation clock frequency of an LSI to suppress the temperature rise of the LSI for a certain time at the time of the abnormal rise of the temperature of the LSI. CONSTITUTION: Thou...
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JPH0731050A |
PURPOSE: To provide an electric shock preventive unit in which a worker is protected against electric shock when he touches a machine base side connector inadvertently. CONSTITUTION: When an outer door 15 is opened, the machine base side...
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JPH078106B2 |
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JPH073798Y2 |
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JPH073614Y2 |
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JPH0713643A |
PURPOSE: To provide an overheating protective circuit for not outputting interruption signals even when the malfunction of an interruption circuit is generated when a heat radiating effect drops and a power source is turned ON and OFF un...
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