A METHOD AND CIRCUIT FOR DRIVING AN ELECTROLUMINESCENT LIGHTING DEVICE

摘要

The present invention relates to a method and circuit for driving an electroluminescent lighting device, and more specifically, an electroluminescent (EL) panel or cell. The present invention is adapted to compensate for any reduction in alternating current passing between the electrodes as a result of capacitive reactance increases due to aging of the EL panel. The shape of the alternating current supplied by the drive circuit is also sinusoidal, thereby significantly reducing audible noise from the EL panel.