Operating device operating method for e.g. organic LED, involves measuring capacitive load before ignition operation or nominal operation of lamp, calculating impedance value from capacitive load, and storing impedance value

摘要

The method involves measuring capacitive load before ignition operation or nominal operation of a lamp, calculating an impedance value from the capacitive load, and storing the impedance value. The measured capacitive load is considered in an ignition phase and/or during regulation of current- or power of the lamp after ignition of the lamp. An error signal is outputted to an operating device (4) and/or to a bus when the measured capacitive load lies above a defined reference value, such that the ignition operation of the lamp is prohibited. An independent claim is also included for an integrated control circuit e.g. micro controller, for implementing a method for operating an operating device for a lamp.