H - Electricity – 05 – B
Patent
H - Electricity
05
B
H05B 41/14 (2006.01) H05B 37/03 (2006.01) H05B 41/298 (2006.01)
Patent
CA 2450918
The invention relates to a method for operating at least one low-pressure discharge lamp using an inverter (T1, T2), the occurrence of a rectifier effect in the at least one law-pressure discharge lamp (FL1, FL2) being monitored during the operation of the at least one low-pressure discharge lamp (FL1, FL2) in order to determine the end of its life. For the purpose of monitoring the rectifier effect of the at least one low-pressure discharge lamp (FL1, FL2), the electric power (P) fed into the inverter (T1, T2), the d.c. voltage drop (Udc1, Udc2) across the electric connections of the at least one low-pressure discharge lamp (FL1, FL2) and the r.m.s. value (Uac) of the a.c. voltage component of the running voltage of the at least one low-pressure discharge lamp (FL1, FL2) are evaluated.
Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh
Smart & Biggar
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