| 摘要 |
<p>This invention provides a fluorescent lamp electronic ballast suitable for light-regulating. It contains a bridge rectifier for rectificating power source voltage, it is characterized by that the electronic ballast also contains a linear active switch filtering circuit for supplying power to a high frequency oscillator after performing linear active switch filtering on output of the bridge rectifier. The electronic ballast constituted based on above structure may combine with a silicon controlled light-regulator, in order to obtain light-regulating effect of general incandescence lamps. The electronic ballast of the invention has advantages of simple structure, low cost of manufacture and high reliability.</p> |
