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    • 5. 发明授权
    • Method and circuit for operating discharge lamp
    • 操作放电灯的方法和电路
    • US4373146A
    • 1983-02-08
    • US198321
    • 1980-10-20
    • Robert P. BonazoliFredrick W. Paget
    • Robert P. BonazoliFredrick W. Paget
    • H05B41/292H05B41/24
    • H05B41/2928Y02B20/208Y10S315/07
    • A method of operating a high intensity discharge lamp having a pair of electrodes hermetically sealed within an arc tube, the method comprising frequency modulation of a carrier waveform in the kilohertz range to provide a variable frequency AC output, and applying the AC output across the electrodes of the lamp to thereby operate the lamp in a manner which minimizes or avoids acoustic resonance effects within the arc tube. The circuit includes an inverter having a first input provided by a DC power source and a drive input coupled to a square wave carrier generator which is frequency modulated by a ramp generator. The resulting variable frequency AC output of the inverter is then coupled across the lamp electrodes.
    • 一种操作具有密封在电弧管内的一对电极的高强度放电灯的方法,所述方法包括在千赫兹范围内对载波波形进行频率调制以提供可变频率AC输出,以及在所述电极之间施加AC输出 从而以使电弧管内的声共振效应最小化或避免的方式操作灯。 电路包括具有由DC电源提供的第一输入和耦合到由斜坡发生器调频的方波载波发生器的驱动输入的反相器。 然后将所得的逆变器的可变频率AC输出耦合在灯电极两端。