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    • 10. 发明专利
    • Discharge lamp lighting device
    • 放电灯照明装置
    • JP2005166288A
    • 2005-06-23
    • JP2003399862
    • 2003-11-28
    • Mitsubishi Electric CorpMitsubishi Electric Lighting Corp三菱電機株式会社三菱電機照明株式会社
    • TAKAHASHI OSAMUYASHIRO YASUNORI
    • H05B41/24H05B41/14H05B41/28H05B41/36H05B41/46
    • Y02B20/204
    • PROBLEM TO BE SOLVED: To provide a discharge lamp lighting device, of which an inverter circuit can oscillate only when a discharge lamp is mounted on it. SOLUTION: The discharge lamp lighting device is provided with an inverter circuit converting a direct current supplied from a direct current power source 1 into a high-frequency current, an inverter drive circuit 38 driving the inverter circuit, a discharge lamp load circuit L10 consisting of choke coils 5, 10, a series circuit of a coupling capacitor 9 connected to the choke coils 5, 10 through discharge lamps 6, 11, and capacitors 7, 12 connected in parallel with the discharge lamps 6, 11, a start-up voltage supply circuit VS supplying voltage for oscillating and starting up the inverter drive circuit 38 based on a current flowing in the coupling capacitor 9, and a high frequency voltage supply circuit FS supplying the inverter drive circuit 38 with a high frequency voltage generated based on a high frequency current output of either of switching elements 2, 3. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种仅在放电灯安装在其上时逆变器电路才能摆动的放电灯点亮装置。 解决方案:放电灯点亮装置设置有将从直流电源1提供的直流电转换为高频电流的逆变器电路,驱动逆变器电路的逆变器驱动电路38,放电灯负载电路 L10由扼流线圈5,10组成,通过与放电灯6,11并联连接的放电灯6,11和电容器7,12连接到扼流线圈5,10的耦合电容器9的串联电路,起动 - 供电电路VS基于流过耦合电容器9的电流来提供用于振荡和启动逆变器驱动电路38的电压,以及向逆变器驱动电路38提供基于生成的高频电压的高频电压供应电路FS 在开关元件2,3的任一个的高频电流输出上。版权所有(C)2005,JPO&NCIPI