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JP4776251B2 |
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JP4770446B2 |
In an overheat protection circuit for power supply devices in the present invention, overheat protection is provided by using a Schottky barrier diode (SBD) in place of a dedicated thermosensor. The overheat protection circuit is designe...
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JP4762044B2 |
A protection device protecting a load circuit by shutting off a power thereof depending on an estimated present temperature of a wire provided in the load circuit to connect a load. The protection device has a first temperature estimatio...
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JP2011160569A |
To provide a system interconnecting generator for preventing fires that occur due to the heat generated or short-circuiting of electrical component.The system interconnecting generator 1 boosts DC power generated in a solar battery by a ...
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JP4727587B2 |
The output current of a ballast is dynamically limited when an over-temperature condition is detected in the ballast according to one of (i) a step function or (ii) a combination of step and continuous functions, so as to reduce the temp...
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JP2011122853A |
To analyze a frequency of an audio signal generated from a consumer apparatus, and estimate a failure and an abnormality as a precursor of the consumer apparatus.An apparatus failure evaluation system is equipped with: an audio measureme...
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JP4708338B2 |
A telecom circuit protection apparatus includes a housing having at least first and second temperature responsive circuit protection devices, such as a fuse and a thyristor disposed therein. A first metal lead is connected to respective ...
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JP4687743B2 |
A battery pack includes at least one secondary battery, a fuse, and a control section. The fuse is configured to cut off charge or discharge current of the secondary battery upon detection of an abnormality of the secondary battery. The ...
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JP4680609B2 |
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JP4679281B2 |
A motor controller includes: an estimated temperature calculating section that calculates and stores an estimated temperature of a motor, and a control section that can perform a drive control of the motor only when this estimated temper...
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JP4672219B2 |
A safety device of the present invention copes with diverse abnormal conditions, and securely interrupts a driving current of an electric appliance by being combined with a normally used current interrupter. For example, a current interr...
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JP2011059402A |
To provide a display device using light-emitting diodes (LEDs), which endures a serge voltage from an AC input and thermal stress, while assuring stable illuminance.In the display device using an LED including: a rectifying circuit 2 for...
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JP4625204B2 |
A less expensive power cord with a safety device detects the damage of the power lines in a cord at an earlier stage, shuts off the power, and guarantees the safety of an electric appliance and its environment. The power cord has two pow...
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JP4624400B2 |
With a wire protection method in accordance with the present invention, the method being used for supplying electric power from a power source to a load, an applied-current to the load is detected every predetermined time, A wire rise te...
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JP4624463B2 |
Disclosed are an apparatus and a method for protecting a battery pack. The apparatus includes: a sensor for detecting external physical impact so as to output a voltage signal; a first protection circuit for receiving the voltage signal ...
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JP4619482B2 |
To prevent an accident of electrical shock, fault current, etc., in the whole cable way supplied from a photovoltaic power generation panel caused by continuous supply of power, during the time the photovoltaic power generation panel gen...
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JP4612022B2 |
To provide a battery system which prevents life reduction due to secondary battery deterioration, firing, and leakage of liquid by stopping charge without fail at overheat, in a battery system which charges a secondary battery. The batte...
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JP2011002057A |
To provide a safety device and a power supply control method for electric equipment, capable of continuously retaining, even when fallen or dropped electric equipment power is returned to a regular attitude, interruption operation which ...
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JP2011004502A |
To provide a short circuit protection device that enables the avoidance of increase in the size of an inverter and the cost thereof.A first metal 22 is provided between a semiconductor device 20 and an electrode 21 connected to the semic...
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JP2010283977A |
To provide a protective device of a load circuit which allows size reduction in electric wire and a semiconductor switch, using a switch circuit simulating a fuse.The amount of heat generated and the amount of heat dissipated in of the e...
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JP2010277226A |
To provide a DC stabilized power supply device for reducing current consumption of an overheat protection circuit regardless of a state of a load, and reducing power consumption by reducing the current consumption of the overheat protect...
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JP2010263666A |
To provide an electric vehicle charging station capable of previously preventing an electric shock due to current leakage caused by impact such as an accidental contact.The electric vehicle charging station having a charging connection m...
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JP2010259254A |
To provide a current controller capable of changing a threshold value for determining whether to cut off supply current or not.The current controller generates a control signal for controlling a supply current from a power source. The co...
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JP4562160B2 |
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JP4561743B2 |
A cooling fan (30) of a secondary battery (10) and a cooling fan (40) of a DC/DC converter (20) are arranged in parallel to share the same air discharge path (80). A temperature sensor (12) on an air intake side and a temperature sensor ...
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JP2010219650A |
To surely prevent the failure of hardware and loss of data preserved in a memory by a short circuit when water is immersed inside the electronic device.In the electronic device including a first member provided with a first connection pa...
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JP2010220371A |
To provide a method of enabling a protection of a circuit even in a case where, if a power source voltage rises and a current continues to flow in a regenerative circuit even with a small regenerative power from a motor or if a regenerat...
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JP2010193679A |
To provide a power breaker interrupting power supplied to an indoor unit (load side) before the occurrence of an earthquake while having a public nature.The power breaker includes: an electric meter 100 measuring the quantity of electric...
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JP2010183676A |
To provide a device and method for controlling a vehicle wherein the safety of the vehicle is ensured when the vehicle collides.HV_ECU determines a vehicle collision (YES at S100) and executes a program including the following steps base...
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JP4523122B2 |
A voltage from an AC power source is converted into a DC voltage in an input-side rectifier-smoother circuit. The DC voltage is then converted into a high-frequency voltage in an inverter, and the resulting high-frequency voltage is volt...
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JP4507366B2 |
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JP4502997B2 |
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JP2010143315A |
To provide an in-vehicle power transmission device capable of surely and quickly discharging electric load stored in a power storage element such as a capacitor, etc. during a vehicle collision. This power transmission device 10 is arran...
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JP4476907B2 |
To provide portable equipment that displays surface temperature varying as an electronic component generates heat and attracts user's attention. Once a digital camera is powered on, a temperature sensor detects surface temperature of a c...
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JP2010115067A |
To provide an on-vehicle electronic apparatus instantly discharging a charge stored in a storage element such as a capacitor or the like in case of vehicle crash.In the on-vehicle electronic apparatus 11 having the storage element, a con...
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JP2010098907A |
To provide an overcurrent protection circuit capable of efficiently protecting damages of a power driver due to an overcurrent while effectively utilizing the current-resistance capability of the power driver to regulate energization of ...
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JP4443744B2 |
A device for easily determining whether a rare short circuit, which results from the generation of heat exceeding a predetermined value, has occurred in a load circuit. The device includes a fuse (2) for detecting a load current that flo...
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JP2010054479A |
To provide a discharge lamp lighting device that improves detection precision of temperature of an electrolytic capacitor and can be manufactured appropriately.The electrolytic capacitor C1 for composing one portion of a main circuit for...
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JP4399750B2 |
A system monitors and controls external utilities interacting with a site to mitigate hazards during disaster or other emergency situations. Upon the occurrence of a disaster or other emergency event, the system disconnects the external ...
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JP2010004683A |
To provide an overheating protective circuit capable of changing the hysteresis width between an overheat protection temperature and an operation restoration temperature, depending on the overheated state of a semiconductor chip of a pro...
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JP4391787B2 |
Disclosed is an enhanced conformal coating, a process for making the same, and several computer related applications. A commercially available conformal coating is combined with a commercially available blowing agent (sometimes called a ...
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JP2009282839A |
To provide a load driving device and semiconductor device that can protect switching elements against an abnormally high temperature, irrespective of whether the abnormally high temperature is caused by the switching elements or not.When...
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JP2009273260A |
To provide a power transmission apparatus capable of detecting abnormal heat generation caused by mixed foreign matters: and to provide an electronic apparatus using the same.The power transmission apparatus includes a primary coil L1(13...
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JP2009268210A |
To provide a terminal block of a house distribution board, which prevents a fire by interrupting a main breaker at the time of abnormal heat generation of a terminal part, and which detects the abnormal heat generation of terminal portio...
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JP4363230B2 |
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JP3154850U |
To prevent forgetting to turn off a power supply for a plurality of predetermined devices when going out. A power off forgetting prevention system 100 includes a transmitting device 1 and a plurality of receiving devices 2a ... 2n, and t...
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JP2009254104A |
To provide a conductor monitor for a power receiving and distributing facility capable of efficiently monitoring individual bus-bars by automatically setting a thermal model of the bus-bar.The conductor monitor for the power receiving an...
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JP2009240024A |
To solve the following problem: there is variation in characteristics among temperature sensing diodes SD1 to SD3 that vary the amount of voltage drop according to the temperature of the vicinity of each of multiple switching elements.Th...
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JP2009230900A |
To provide a non-aqueous electrolyte secondary battery having a protection circuit which can make a large current flow and has a high safety.The non-aqueous electrolyte secondary battery pack is provided with a protection circuit in whic...
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JP2009231074A |
To intercept an electric path, even if a holding member that holds a displacement member for opening an electric path is disengaged.A circuit breaker unit 90 is provided with two conductive electrodes 94a and 94b, in the lower part of a ...
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