| 摘要 |
<p>A power controlling unit of electrodeless lighting devices is provided to vary and control PFC output voltage in order to directly change primary voltage of a high voltage generator, thereby controlling final output. A power controlling circuit of electrodeless lighting devices is comprised of a high pressure generator, a load(600), an AC inputting unit, a PFC controlling unit, an output controlling unit and a PFC feedback controlling unit. The AC inputting unit(100) receives common power source. The PFC controlling unit(200) controls primary input voltage of the high pressure generator. The output controlling unit(300) outputs control signals according to the feedback power of the load. The PFC feedback controlling unit varies the feedback power according to the control signals of the output controlling unit.</p> |
