ALEJANDRO LOPEZ
Pilots at Umbdenstock Rd, Hoffman Estates, IL
License number
Illinois C1058114
Category
Airmen
Address
Address
1395 Umbdenstock Rd, Hoffman Estates, IL 60123
Professional information
Electronic Ballast And Startup Method
US Patent:
2012011, May 10, 2012
Filed:
Jun 30, 2010
Appl. No.:
13/384005
Inventors:
Yuhong Fang - Naperville IL, US
Sree Venkit - Naperville IL, US
Sanjaya Kumar Pradhan - Des Plaines IL, US
Alejandro Lopez - Lake Zurich IL, US
George Grouev - Lake Zurich IL, US
Arun Ganesh - Aurora IL, US
Bruce Rhodes - Inverness IL, US
Sree Venkit - Naperville IL, US
Sanjaya Kumar Pradhan - Des Plaines IL, US
Alejandro Lopez - Lake Zurich IL, US
George Grouev - Lake Zurich IL, US
Arun Ganesh - Aurora IL, US
Bruce Rhodes - Inverness IL, US
Assignee:
KONINKLIJKE PHILIPS ELECTRONICS N.V. - EINDHOVEN
International Classification:
H05B 41/298
US Classification:
315116
Abstract:
An electronic ballast and startup method including an electronic ballast operably connected to a lamp having a lamp filament, the electronic ballast having a timer () generating an inverter control signal () and a preheat control signal (); a converter () receiving AC power and generating DC power (); a self-oscillating inverter () receiving DC power () and being operable to provide lamp power () to the lamp, the self-oscillating inverter () being responsive to the inverter control signal (); and a filament preheater () receiving DC power () and being operable to provide filament power () to the lamp filament, the filament preheater () being responsive to the preheat control signal (). When AC power is initially applied, preheat control signal () directs the filament preheater () to provide filament power (), and inverter control signal () directs the self-oscillating inverter () not to provide lamp power ().