Inventor
EBERSON ETIENNE N K P M
NL4 patents
Patents
4 patentsUS6078147AJun 20, 2000
Discharge lamp ballast circuit with duty cycle dimming control
PHILIPS CORP22 citations89
US6198232B1Mar 6, 2001
Discharge lamp circuit with dual ignition coils
PHILIPS CORP7 citations66
US6188184B1Feb 13, 2001
Electronic ballast with reduced operating frequency after lamp ignition
PHILIPS CORP5 citations60
US6150761ANov 21, 2000
Discharge lamp ballast circuit with charge pump igniter
PHILIPS CORP6 citations60