| 摘要 |
<p>The fluorescent lamp operating method has an integrated control and regulation circuit (IC) used for regulating the load current in a half bridge load circuit (4) containing at least one fluorescent lamp (FL), with a timing device (PST, IT) providing a sequence of selection signals (S1,S2,S3,S4) upon starting, used for activating different reference levels for a load current monitoring circuit (MON), providing a control pulse (QM) upon reaching each reference level, with automatic disconnection upon detection of an operating fault. An internally generated DC signal is superimposed on the load current signal fed to the monitoring circuit during each lamp ignition period, dependent on the lamp characteristics, for matching the fixed reference level independent of the type of lamp used. An Independent claim for an electronic bias device for operation of a fluorescent lamp is also included.</p> |
