| 摘要 |
<p>An electronic starter for a fluorescent lamp (4) comprising a rectifying circuit (5) for rectifying an AC input voltage (1), a switching device connected to an output of the rectifying circuit, a drive voltage supply circuit (7, 8, 9) for supplying a drive voltage to the switching device, a drive voltage interrupt circuit (10-14) for interrupting the drive voltage to the switching device, and an overheat protecting device (16, 161) for protecting the switching device from an overheat. The switching device may include a field effect transistor (6) or an insulated gate bipolar transistor. According to the present invention, an ignition switching operation is always made at a peak point of the AC input voltage (1). Therefore, a single-shot lighting operation of the fluorescent lamp (4) can be performed.</p> |
