At least, operation manner of one low pressure discharge lamp, and, the operation device null half bridge inverter for one low pressure

摘要

PROBLEM TO BE SOLVED: To detect the rectifying effect of at least one low-pressure discharge lamp with high reliability, specifically to prevent an operating apparatus to be shut off by the detection failure of a rectifying action.;SOLUTION: The DC current drop of the electric terminal of at least one low pressure discharge lamp, and the current or the amount proportional to the current flowing through at least one low pressure discharge lamp are evaluated for monitoring the rectifying effect of at least the low pressure discharge lamp.;COPYRIGHT: (C)2005,JPO&NCIPI