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    • 31. 发明专利
    • Power supply device and illuminating device
    • 电源装置和照明装置
    • JP2013242969A
    • 2013-12-05
    • JP2012113730
    • 2012-05-17
    • Toshiba Lighting & Technology Corp東芝ライテック株式会社
    • TAKAHASHI KOJISATO KAZUHIKOSAKAI KENJITERASAKA HIROSHIIWAI NAOKONAKAJIMA HIROMICHI
    • H05B37/02
    • G06F1/305H05B33/0887Y02B20/341
    • PROBLEM TO BE SOLVED: To provide a power supply device capable of performing a protection operation with certainty at an occurrence of abnormalities of a load.SOLUTION: A power supply device 10 comprises a power supply voltage conversion circuit 17 converting a power supply voltage and supplying the converted power supply to an LED element 11. Abnormality detection means 30 detects abnormalities of the LED element 11. A first controller 21 controls the power supply voltage conversion circuit 17, and the abnormality detection means 30 performs controls to stop or reduce an output of the power supply voltage conversion circuit 17 by detecting the abnormalities of the LED element 11. A second controller 22 gives a command to the first controller 21, and the abnormality detection means 30 controls the first controller 21 to stop or reduce the output of the power supply voltage conversion circuit 17 by detecting the abnormalities of the LED element 11.
    • 要解决的问题:提供能够在发生负载异常的情况下确定地执行保护操作的电源装置。解决方案:电源装置10包括电源电压转换电路17,其将电源电压转换并供应 异常检测装置30检测LED元件11的异常。第一控制器21控制电源电压转换电路17,异常检测装置30执行控制以停止或减少LED元件11的输出。 电源电压转换电路17通过检测LED元件11的异常。第二控制器22向第一控制器21发出命令,异常检测装置30控制第一控制器21停止或减少功率的输出 电源电压转换电路17通过检测LED元件11的异常。
    • 36. 发明专利
    • Fluorescent lamp drive
    • 荧光灯驱动
    • JP2012230923A
    • 2012-11-22
    • JP2012187356
    • 2012-08-28
    • Lecip Holdings Corpレシップホールディングス株式会社
    • WASHIMI YOSHIKAZUTANASE TAKUHIRO
    • H05B41/24
    • H05B41/2985H05B33/0887H05B41/295Y02B20/341
    • PROBLEM TO BE SOLVED: To provide a fluorescent lamp drive device which comes in a relatively simple construction, yet makes appropriate preheating possible.SOLUTION: In a fluorescent lamp drive device 2, during a preheating period at which time a switch 71 is on, non-power supply side connection terminals 7d and 8d of filaments 5 and 6 of a fluorescent lamp 1 are shorted together by the switch 71, even when a capacitor 38 is connected between the non-power supply side connection terminals 7d and 8d. This ensures that, during the preheating period, the fluorescent lamp 1 does not turn on even when a high frequency voltage Vout is applied to the filaments 5 and 6, so that preheating control for heating the filaments 5 and 6 in advance, without causing the lamp to turn on before its lighting starts, is made possible. Therefore, a relatively simple construction comprised of a secondary winding 22 of a transformer 19, a choke coil 23, a DC component cutoff capacitor 24, and a capacitor 38, etc. which together compose a series resonance circuit needed for ordinary lighting control, plus a switch 71 and a switch drive circuit 75 for turning it on or off being added thereto, makes appropriate preheating possible.
    • 要解决的问题:提供一种具有相对简单结构的荧光灯驱动装置,但是可以进行适当的预热。 解决方案:在荧光灯驱动装置2中,在开关71接通的预热期间,荧光灯1的灯丝5和6的非供电侧连接端子7d和8d通过 开关71,即使电容器38连接在非电源侧连接端子7d和8d之间。 这确保了在预热期间,即使当高频电压Vout施加到灯丝​​5,6时,荧光灯1也不会接通,从而预先对灯丝5和6进行加热的预热控制,而不会引起 灯在其照明启动之前打开,成为可能。 因此,由变压器19的次级绕组22,扼流线圈23,直流分量截止电容器24和电容器38构成的相对简单的结构,它们共同组成普通照明控制所需的串联谐振电路,加上 开关71和用于打开或关闭的开关驱动电路75可以进行适当的预热。 版权所有(C)2013,JPO&INPIT
    • 37. 发明专利
    • Lighting controller of a lighting device for a vehicle
    • JP5042798B2
    • 2012-10-03
    • JP2007324788
    • 2007-12-17
    • 株式会社小糸製作所
    • 昌康 伊藤孝悦 北河靖史 野寄
    • H05B37/02
    • H05B33/0887H05B33/0827
    • A lighting controller of a lighting device for a vehicle includes a switching regulator for supplying a driving current to first to Nth (N is an integer of one or more) semiconductor light sources; first to Nth current driving portions; and a control portion. The first to Nth current driving portions include first to Nth current detecting portions connected in series to the semiconductor light sources and serving to detect the driving current respectively, first to Nth switching portions connected to positive electrode sides of the semiconductor light sources respectively, and first to Nth comparing portions for transmitting a comparing output corresponding to a result of a comparison, which is obtained by comparing values of the driving currents detected by the current detecting portions with a predetermined threshold respectively. The first to Nth current driving portions serve to carry out operations of the switching portions corresponding to the comparing output respectively. The control portion includes first to Nth first voltage drop detecting portions for detecting voltages on output sides of the comparing portions and transmitting first to Nth first detection results, and first to Nth second voltage drop detecting portions for detecting voltages on positive electrode sides of the semiconductor light sources and transmitting first to Nth second detection results respectively. The control portion controls the first to Nth current driving portions corresponding to the first to Nth first detection results and the first to Nth second detection results respectively.
    • 40. 发明专利
    • Lighting device and lighting fixture using the same
    • 照明设备和使用相同的照明设备
    • JP2011222266A
    • 2011-11-04
    • JP2010089634
    • 2010-04-08
    • Panasonic Electric Works Co Ltdパナソニック電工株式会社
    • HIRAMATSU AKINORIMIZUKAWA HIROMITSUKUROKI YOSHIFUMI
    • H05B37/02
    • H02M1/36H02M3/156H05B33/0815H05B33/0821H05B33/0887
    • PROBLEM TO BE SOLVED: To provide a lighting device capable of reliably detecting the presence/absence of load connection.SOLUTION: A lighting device comprises: a DC-DC conversion circuit 1 performing voltage conversion for DC voltages between input terminals A and B and outputting the DC voltage to output terminals C and D; a DC energizing element (resistor R3) connected between the output terminals C and D; a load terminal 3 for connecting a semiconductor light-emitting element 4 which is lit by a DC current supplied from the output terminals C and D; a load connection detection circuit 2 forming a path for energizing a DC current from the input terminals A and B through the load terminal 3 and the semiconductor light-emitting element 4; and a rectifying device (diode D3) connected between the load terminal 3 and the DC energizing element (resistor R3) which blocks a path for energizing a DC current from the input terminals A and B through the DC energizing element (resistor R3) to the load connection detection circuit 2.
    • 要解决的问题:提供能够可靠地检测负载连接的有无的照明装置。 解决方案:照明装置包括:DC-DC转换电路1,对输入端子A和B之间的直流电压执行电压转换,并将DC电压输出到输出端子C和D; 连接在输出端C和D之间的DC通电元件(电阻R3) 用于连接由从输出端子C和D提供的直流电流点亮的半导体发光元件4的负载端子3; 负载连接检测电路2,形成用于通过负载端子3和半导体发光元件4从输入端子A和B通电的电流; 以及连接在负载端子3和DC供电元件(电阻器R3)之间的整流装置(二极管D3),其阻断用于通过DC供电元件(电阻器R3)将来自输入端子A和B的DC电流通电的路径 负载连接检测电路2.版权所有(C)2012,JPO&INPIT