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    • 15. 发明公开
    • MULTIPLE-LIGHT DISCHARGE-LAMP LIGHTING APPARATUS
    • MEHRFACHLICHT-ENTLADUNGSLAMPEN-BELEUCHTUNGSVORRICHTUNG
    • EP1983806A1
    • 2008-10-22
    • EP07706764.3
    • 2007-01-15
    • MINEBEA Co., Ltd.
    • SHINMEN, HiroshiWEGER, Robert
    • H05B41/24G02F1/13357H01F38/08
    • H05B41/2827H01F17/045H01F38/10H01F2038/006
    • A multiple discharge lamp lighting device in which lamp current of discharge lamps is equalized by using a circuit structure having transformers on both sides of the discharge lamps and in which the number of parts can be reduced. A multiple discharge lamp lighting device 10 according to the present invention includes the same number of first transformers TA1 to TAn as the number of discharge lamps La1 to Lan and one second transformer TB. One end of a secondary winding (e.g., Ns1) on the non-grounded side of the first transformer (e.g., TA1) is connected to one end of one corresponding discharge lamp (e.g., La1). One end of a secondary winding Ws on the non-grounded side of the second transformer TB is connected to a second end of each of the discharge lamps La1 to Lan. The potentials of the secondary windings Ns1 to Nsn on the non-grounded side of the first transformer TA1 to TAn and the potential of the secondary winding Ws on the non-grounded side of the second transformer TB are mutually changed with inverse phases.
    • 一种多放电灯点亮装置,其中通过使用在放电灯两侧具有变压器的电路结构来平衡放电灯的灯电流,并且其中可以减少部件的数量。 根据本发明的多放电灯点亮装置10包括与放电灯La1至Lan的数量和一个第二变压器TB相同数量的第一变压器TA1至TAn。 在第一变压器的非接地侧(例如,TA1)上的次级绕组(例如,Ns1)的一端连接到一个对应的放电灯(例如,La1)的一端。 第二变压器TB的非接地侧的次级绕组Ws的一端与各放电灯La1〜Lan的第二端连接。 在第一变压器TA1〜TAn的非接地侧的次级绕组Ns1〜Nsn的电位和第二变压器TB的非接地侧的次级绕组Ws的电位相反地变化。