General Electric Company

Peter Vigh

Jozsef Fulop

Sandor Lukacs

Gabor Schmidt

Istvan Wurschung

Fetenc Papp

Mate Krejcarek

A lamp assembly provides both instant light through use of an incandescent/halogen lamp source and an energy saving type light provided by a compact fluorescent lamp source. Both light sources are enclosed within a common envelope or outer bulb. The sensor member monitors a temperature of the cathode and mercury reservoir of the compact fluorescent lamp source in order to determine when to terminate power to the incandescent lamp source.

Fast warm-up and instant light energy saving lamp assembly

Ballasts and LED drivers are presented for powering at least one light source, in which a shunt circuit provides a high impedance to allow operation of the light source when the AC input power exceeds a power threshold value, and provides a low impedance when the AC input power is below the power threshold value to prevent an output power stage from providing power to the light source.

Lighting system electronic ballast or driver with shunt control for lighting control quiescent current

Growing community of inventors

Budapest, Hungary

Peter Vigh