WHITE LED DRIVING CIRCUIT FOR LIGHTING, AND LIGHTING FIXTURE AND ELECTRONIC DEVICE PROVIDED WITH THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a white LED driving circuit for lighting which can shutdown an overcurrent state.;SOLUTION: In a circuit which drives a white LED group (a white LED group composed of LEDs serially connected bodies 6_1 to 6_n) in which a plurality of rows of serially connected bodies having a plurality of serially connected white LEDs are connected in parallel, a current of the row of the while LEDs where an abnormal current flows is shutdown, when an abnormal current (a current of a predetermined level or higher) flows in any of the plurality of rows.;COPYRIGHT: (C)2010,JPO&INPIT