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公开(公告)号：JP4708338B2
公开(公告)日：2011-06-22
申请号：JP2006515262
申请日：2004-06-04
Applicant: ベル−フューズ・インク
Inventor： ロバート・スチリング
CPC classification number: H04M3/18
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公开(公告)号：JP2011059402A
公开(公告)日：2011-03-24
申请号：JP2009209330
申请日：2009-09-10
Applicant: Creative Daiwa Co Ltd , Dhs Co Ltd , Ryoden Trading Co Ltd , 株式会社クリエイティブダイワ , 株式会社デイ・エイチ・エス , 菱電商事株式会社
Inventor： TABUCHI KATSUMI
Abstract: PROBLEM TO BE SOLVED: 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.
SOLUTION: In the display device using an LED including: a rectifying circuit 2 for rectifying an AC input of a commercial alternate current(AC) voltage, and outputting it; and a plurality of LEDs 3 connected in series with this output used as input, a varistor 5 is connected between lines of AC input, and an overheat protective circuit 6 is connected to the plurality of LEDs 3 in series. Breakdown of the display device is prevented by preventing serge voltage from flowing from the commercial AC power supply by the varistor 5. The display device uses the LEDs with excellent reliability, which can prevent heat from being generated and raised to a prescribed temperature or more, by the overheat protective circuit 6.
COPYRIGHT: (C)2011,JPO&INPITAbstract translation: 要解决的问题：提供一种使用发光二极管（LED）的显示装置，该显示装置在确保稳定的照度的同时，能够承受来自AC输入和热应力的脉冲电压。 解决方案：在使用LED的显示装置中，包括：整流电路2，用于整流商用交流（AC）电压的交流输入，并输出; 和与作为输入的输出串联连接的多个LED3，在交流输入线之间连接有变阻器5，并且过热保护电路6与多个LED 3串联连接。 通过防止由压敏电阻5从商用交流电源流出串联电压来防止显示装置的故障。显示装置使用可以防止发热并升高到规定温度以上的可靠性高的LED， 过热保护电路6.版权所有（C）2011，JPO＆INPIT
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公开(公告)号：JPWO2009048052A1
公开(公告)日：2011-02-17
申请号：JP2009536995
申请日：2008-10-07
Applicant: 株式会社オートネットワーク技術研究所 , 住友電装株式会社 , 住友電気工業株式会社
CPC classification number: B60R16/0239 , H02H3/087 , H02H5/044
Abstract: 電気接続箱10は、電源Bに接続されるFET32と、FET32に接続されて、FET32と負荷Lとを接続する基板側導電路18と、基板側導電路18に対して電気的に且つ伝熱的に接続されると共にPN接合を含むダイオード素子Dと、ダイオード素子Dの入出力端子25,26間の電圧降下値が閾値よりも大きいか否かを判断し、電圧降下値が閾値よりも小さいと判断された場合にはFET32にオフ指令信号を出力するCPU19とを備える。
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Patent Agency Ranking
公开(公告)号：JP2010178593A
公开(公告)日：2010-08-12
申请号：JP2009021609
申请日：2009-02-02
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： UKI SHINICHIRO
CPC classification number: Y02T10/6239 , Y02T10/7005 , Y02T10/7077 , Y02T10/7241
Abstract: PROBLEM TO BE SOLVED: To securely protect an inverter when charging a battery from an external power source through the inverter.
SOLUTION: When charging the battery 26 by the external power source 34, if a temperature Ta of an element of the inverter 24 is a predetermined temperature T1 or more, or if a temperature Tb of coolant cooling the inverter is a predetermined temperature T2 or more, a control device 40 interrupts charging of the battery 26. Further, when the temperature Ta is within a limit which is less than the predetermined temperature T1 and is a predetermined temperature T3 or more, and the temperature Tb is within a limit which is less than the predetermined temperature T2 and is a predetermined temperature T4 or more, and these states is sustained over a predetermined time S, the control device 40 interrupts charging of the battery 26. Since heat generation of the inverter 24 is suppressed under this control, the inverter 24 is protected.
COPYRIGHT: (C)2010,JPO&INPITAbstract translation: 要解决的问题：通过变频器从外部电源为电池充电时，可以安全地保护变频器。
解决方案：当通过外部电源34对电池26充电时，如果逆变器24的元件的温度Ta为预定温度T1或更高，或者如果冷却冷却逆变器的温度Tb为预定温度 T2以上的情况下，控制装置40中断电池26的充电。此外，当温度Ta在小于预定温度T1并且处于预定温度T3以上且温度Tb在极限以内的限度内时 其小于预定温度T2并且是预定温度T4或更大，并且这些状态在预定时间S内持续，则控制装置40中断电池26的充电。由于逆变器24的发热被抑制在该 控制，逆变器24被保护。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2010054479A
公开(公告)日：2010-03-11
申请号：JP2008222683
申请日：2008-08-29
Applicant: Toshiba Lighting & Technology Corp , 東芝ライテック株式会社
Inventor： MATSUMOTO SHINICHIRO , KUDO HIROYUKI , KUMAGAI MASATOSHI
IPC: G01K1/14 , F21V23/00 , F21Y103/02 , H02H5/04
Abstract: PROBLEM TO BE SOLVED: To provide a discharge lamp lighting device that improves detection precision of temperature of an electrolytic capacitor and can be manufactured appropriately.
SOLUTION: The electrolytic capacitor C1 for composing one portion of a main circuit for operating a lamp is packaged on one main surface 71a of a substrate 71. A temperature sensor 59 for capacitors for detecting temperature of the electrolytic capacitor C1 and composing one portion of a control circuit CC for driving the lamp by controlling the main circuit is packaged on the other main surface 71b of the substrate 71 and on the back of the electrolytic capacitor C1, thus improving detection precision of temperature of the electrolytic capacitor C1 by the temperature sensor 59 for capacitors and improving manufacturing properties without any need for providing processes, or the like for fixing the temperature sensor 59 for capacitors to the electrolytic capacitor C1.
COPYRIGHT: (C)2010,JPO&INPITAbstract translation: 解决的问题：提供一种提高电解电容器的温度检测精度的放电灯点亮装置，能够适当地制造。 解决方案：用于组成用于操作灯的主电路的一部分的电解电容器C1被封装在基板71的一个主表面71a上。用于检测电解电容器C1的温度并组成一个的电容器的温度传感器59 通过控制主电路驱动灯的控制电路CC的一部分被封装在基板71的另一个主表面71b和电解电容器C1的背面上，从而提高电解电容器C1的温度检测精度 用于电容器的温度传感器59，并且不需要提供用于将用于电容器的温度传感器59固定到电解电容器C1的工艺等的改进的制造性能。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2010004683A
公开(公告)日：2010-01-07
申请号：JP2008162360
申请日：2008-06-20
Applicant: Toshiba Corp , Toshiba Discrete Technology Kk , 東芝ディスクリートテクノロジー株式会社 , 株式会社東芝
Inventor： CHISAKA JUNICHI , TODAKA JUNICHI
Abstract: PROBLEM TO BE SOLVED: 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 protective object. SOLUTION: The overheating protective circuit 1 includes: an overheated state detection part 11 which starts the output of an overheat detection signal Vb, when the temperature of the semiconductor chip 100 exceeds the overheat protection temperature and terminates the output of the overheat detection signal Vb, when the temperature of the semiconductor chip 100 lowers up to the operation restoration temperature, having hysteresis between the overheat protective temperature and itself; an abnormal overheat determination part 12, which receives the input of a signal capable of monitoring the overheated state of the semiconductor chip 100, and determines whether the semiconductor chip 100 is in an abnormally overheated state; and a hysteresis control part 13, which makes the hysteresis width wider in the direction of lowering the setting value of the operation restoration temperature in the overheated state detection part 11, when the abnormal overheat determination part 12 determines that the semiconductor chip is in the abnormally overheated state. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 要解决的问题：根据保护对象的半导体芯片的过热状态，提供能够改变过热保护温度和操作恢复温度之间的滞后宽度的过热保护电路。 解决方案：过热保护电路1包括：当半导体芯片100的温度超过过热保护温度并终止过热检测的输出时，过热状态检测部11启动过热检测信号Vb的输出 信号Vb，当半导体芯片100的温度降低到操作恢复温度时，具有过热保护温度与其本身之间的滞后; 异常过热判定部12，其接收能够监视半导体芯片100的过热状态的信号的输入，并判断半导体芯片100是否处于异常过热状态; 以及滞后控制部13，其在过热状态检测部11中使滞后宽度在降低操作恢复温度的设定值的方向上变宽，当异常过热判定部12判定为半导体芯片异常时 过热状态 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2009282839A
公开(公告)日：2009-12-03
申请号：JP2008135503
申请日：2008-05-23
Applicant: Autonetworks Technologies Ltd , Sumitomo Electric Ind Ltd , Sumitomo Wiring Syst Ltd , 住友電気工業株式会社 , 住友電装株式会社 , 株式会社オートネットワーク技術研究所
Inventor： OKADA JUN , FUJII SHIGEYUKI
Abstract: PROBLEM TO BE SOLVED: 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. SOLUTION: When a detection result by an element temperature sensor 41 for detecting a temperature in the vicinity of FETs 31 to 33, which are switching elements, exceeds a predetermined temperature, and a detection result by a current sensor 51 corresponding to, for example, the FET 31 exceeds a predetermined current value, the abnormally high temperature is caused by the FET 31, and therefore the FET 31 is turned off. When respective detection results by current sensors 51 to 53 corresponding to all the FETs 31 to 33 do not exceed the predetermined current value, the abnormally high temperature is not caused by the FETs 31 to 33, and therefore the FET 31 connected to a rear fog lamp 61 having low importance in a vehicle is turned off. However, when the FET 31 has already been turned off, the FET 32 connected to a fog lamp 62 having second lowermost importance is turned off. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 要解决的问题：提供一种能够保护开关元件免受异常高温的负载驱动装置和半导体装置，而不管开关元件是否引起异常高温。 解决方案：当用于检测作为开关元件的FET31至33附近的温度的元件温度传感器41的检测结果超过预定温度时，以及由电流传感器51对应的检测结果， 例如，FET31超过预定的电流值，由FET31引起异常高温，因此FET31截止。 当与所有FET31〜33对应的电流传感器51〜53的各检测结果不超过规定的电流值时，FET31〜33不会引起异常高温，因此连接于后雾的FET31 在车辆中具有低重要性的灯61被关闭。 然而，当FET31已经被断开时，连接到具有第二最低重要性的雾灯62的FET32被截止。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2009232513A
公开(公告)日：2009-10-08
申请号：JP2008072151
申请日：2008-03-19
Applicant: Sanyo Electric Co Ltd , Sanyo Semiconductor Co Ltd , 三洋半導体株式会社 , 三洋電機株式会社
Inventor： TSUKISAWA MASAO , SUGIMOTO SATOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a protection circuit having both proper functions of overcurrent protection and overtemperature protection. SOLUTION: The protection circuit includes: a first resistor for detecting a current applied to a circuit to be protected as a voltage; a reference voltage generating circuit for generating a reference voltage; an overcurrent detection circuit having an output to become high impedance when the voltage does not exceed the reference voltage and an output to become a predetermined voltage when the voltage exceeds the reference voltage; an overtemperature detection circuit including a temperature detection element having a resistance value varying in accordance with a temperature, a second resistor connected in series to the temperature detection circuit, a transistor having a control electrode connected in common to the output of the overcurrent detection circuit and to a connection point between the temperature detection element and the second resistor, operating in response to the voltage of the connection point when the output of the overcurrent detection circuit becomes high impedance, and operating in response to the predetermined voltage when the output of the overcurrent detection circuit becomes the predetermined voltage; and a control circuit for controlling so as to protect the circuit to be protected in response to the output of the transistor. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 要解决的问题：提供具有过流保护和过温保护功能的保护电路。 解决方案：保护电路包括：第一电阻器，用于检测施加到被保护电路的电流作为电压; 用于产生参考电压的参考电压产生电路; 当电压超过参考电压时，具有输出变为高阻抗的过电流检测电路，当电压超过基准电压时，输出成为预定电压; 包括具有根据温度变化的电阻值的温度检测元件的过温度检测电路，与温度检测电路串联连接的第二电阻器，具有与过电流检测电路的输出共同连接的控制电极的晶体管，以及 到温度检测元件和第二电阻器之间的连接点，当过电流检测电路的输出变为高阻抗时，响应于连接点的电压而工作，并且当过电流的输出响应于预定电压时工作 检测电路成为规定电压; 以及控制电路，用于控制以便响应于晶体管的输出来保护被保护的电路。 版权所有（C）2010，JPO＆INPIT
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