Entladungslampenbetriebsschaltung mit Schaltung zur Detektion der Nähe zu einem kapazitiven Betrieb

摘要

The circuit has an oscillator circuit that generates radio frequency supply power for a load circuit containing a discharge lamp (1) from a variable supply power. A detection circuit identifies proximity to a capacitive operation of the load circuit. The detection circuit senses magnitude of fluctuations in the lamp current based on changes in the supply power.