公开(公告)号：WO2002060228A1

公开(公告)日：2002-08-01

申请号：PCT/IT2001/000031

申请日：2001-01-24

Applicant: STMICROELECTRONICS S.R.L.

Inventor： BORELLA, Flavia ,  MORICONI, Ugo ,  PIDUTTI, Albino ,  QUAGLINO, Roberto ,  SANDRINI, Francesca

IPC: H05B41/38

CPC classification number: H05B41/2985 ,  H05B41/382

Abstract: The present invention relates to the managing of lamp fault conditions in electronic ballasts for one or more gas discharge lamps. The method for fault management of electronic ballast for at least one gas discharge lamp comprises the steps of: preheating the lamp filaments applying a low current for a predetermined time; igniting the lamp by increasing at a predetermined rate the voltage applied up to a predetermined strike value; charaterised by monitoring the lamp current; repeating the steps of igniting the lamp and monitoring the lamp current for a predetermined numbers of times if the lamp current is over a predetermined threshold; powering the lamp at normal operating conditions.

Abstract translation: 本发明涉及一种或多种气体放电灯的电子镇流器灯管故障状况的管理。 用于至少一个气体放电灯的电子镇流器的故障管理方法包括以下步骤：在施加低电流预定时间的情况下预热灯丝; 通过以预定速率增加施加到预定冲击值的电压来点燃灯; 通过监控灯电流特性; 如果灯电流超过预定阈值，则重复点灯并监视灯电流达预定次数的步骤; 在正常工作条件下为灯供电。