| 摘要 |
To provide a multiple-light discharge lamp lighting device that stabilizes and equalizes tube current of a plurality of discharge lamps without arranging a Ballast element to the secondary side of an inverter transformer with low costs. A multiple-light discharge lamp lighting device 10 according to the present invention includes inverter means 12 and a plurality of inverter transformers TR<SUB>1 </SUB>to TR<SUB>n</SUB>. Discharge lamps La<SUB>1 </SUB>to La<SUB>n </SUB>are connected to secondary windings Ns 1 to Nsn of the inverter transformers TR<SUB>1 </SUB>to TR<SUB>n</SUB>. Preferably, variable impedance elements Z<SUB>1 </SUB>to Z<SUB>n</SUB>, as variable inductance elements, are serially connected to primary windings Np 1 to Npn of the plurality of inverter transformers TR<SUB>1 </SUB>to TR<SUB>n</SUB>. Accordingly, the tube current can be stabilized and equalized without using an element resistant to a high voltage.
|
