An electronic ballast for operating a discharge lamp comprises a first switch mode power supply for supplying a discharge current to the lamp and a second switch mode power supply for heating the electrodes of the lamp. The second switch mode power supply is equipped with a power control loop comprising a memory for storing at least one electrode heating reference value.
申请公布号
WO03045117(A1)
申请公布日期
2003.05.30
申请号
WO2002IB04663
申请日期
2002.11.05
申请人
KONINKLIJKE PHILIPS ELECTRONICS N.V.;BEIJ, MARCEL;BUIJ, ARNOLD, W.