| 摘要 |
The invention relates to a ferroresonant ballast that regulates the current level to a gas discharge lamp (138). The inventative concept primarily resides in the use of an additional winding (136) with the gas discharge lamp being provided in parallel with winding (136). An additional inventative concept resides in the use of an inductor placed in parallel across the output capacitor so as to dim the lamp (138), i.e. control the current draw by the lamp (138).
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