RELIABILITY TEST METHOD OF PROTECTION CIRCUIT OF ELECTRONIC BALLAST FOR FLUORESCENT LAMP, AND PROTECTIVE OPERATION CONFIRMATION METHOD IN OUTGOING INSPECTION OF ELECTRONIC BALLAST FOR FLUORESCENT LAMP

摘要

PPROBLEM TO BE SOLVED: To provide a reliability test method of a protection circuit of an electronic ballast for a fluorescent lamp capable of executing a large number of tests in a short period while simulating an end-of-life transient phenomenon of the fluorescent lamp. PSOLUTION: This reliability test method of a protection circuit of an electronic ballast for a fluorescent lamp is characterized by that, in the electronic ballast of the fluorescent lamp, an impedance-variable element is connected to the load side of the electronic ballast; and a history passed by the actual fluorescent lamp as the transient phenomenon at the end of life is recreated by the impedance-variable element to confirm the protective operation of the electronic ballast. PCOPYRIGHT: (C)2004,JPO&NCIPI