General Electric Company

Current Lighting Solutions, LLC

Jácint Gergely

Peter Lucz

Gabor Schmidt

Tamás Vásárhelyi

Zsolt Bagoly

Gabor T Szabo

Gábor Szabó

Loránd Lehel Tóth

József Fülöp

Sandor Lukacs

Lajos Csibi

Balazs Torok

Tamas Daranyi

Tímea Seszták

Miklos Budai

József Samu

Peter Vigh

Titusz Talalt

Mate Krejcarek

Loránd Tóth

A lighting system waveform shaping circuit (WSC) includes a line voltage input, a line voltage output connectable to an input voltage port of a control unit, a neutral line input connectable to a neutral line of a voltage power source, and the WSC including an impedance matching network (IMN) configured to alter an input impedance of the lighting control circuit. In one embodiment, the IMN can include a resistor in series with the line voltage input, and an actively-controlled bypass switch in parallel with the resistor. In another embodiment, the IMN can include respective ferrite chokes surrounding the input and the output voltage lines, a capacitor between the line voltage input and the neutral line input, a capacitor between the neutral line input and a protected earth ground, and a resistor in series between the neutral line input and the lighting control unit neutral line input port.

Waveform shaping circuit for spurious harmonic suppression

A compact fluorescent lamp (CFL) ballast driver includes first, second and neutral AC voltage terminals, a full wave rectifier between the first AC voltage terminal and the neutral AC input terminal, and a separate branch between the second AC voltage terminal and the neutral AC input terminal. A resonator circuit includes at least two inductors and provides its output voltage to a CFL lamp. The driver includes a first state detector circuit to monitor the first AC voltage terminal, and a second state detector circuit to monitor the second AC voltage terminal. The first and second state detector circuits activate respective first and second switches. The first switch shunts one inductor of the resonator circuit, and the second switch shunts another inductor of the resonator circuit. The driver can be housed in a CFL having a capper, a three-way lamp base adjacent to the capper and an arc tube.

Compact fluorescent lamp three-way ballast driver

Light cover

A lamp includes a collar with internal and outer surfaces, where two or more connection pins extend from the internal surface of the collar. At least two connection pins have a head portion distal from the collar internal surface. The head portions include a slot. The lamp includes a light source with at least two external lead-in wires. The lead-in wires are located within respective slots and are mechanically coupled to respective surfaces of the slots in a press-fit manner which may be free of wrapping, winding, twisting, or soldering. A PCB disposed inside the lamp has two opposing surfaces and a rim between the two opposing surfaces. There are conductive surfaces disposed on at least one of the rim and one of the opposing surfaces at positions corresponding to connection pin slots. The PCB is located between connection pins with the conductive surfaces in electrical communication with the lead-in wires.

Device and method for coupling a light source to a printed circuit board in lamps

A lamp including a primary light source and a secondary light source, and a secondary light source control circuit configured to provide an operating voltage to the secondary light source. The secondary light source control circuit including a resistance element having an initial resistance which changes in response to being exposed to a temperature above a predetermined threshold. The secondary light source control circuit including a charging branch resistance-capacitance time constant that is configured to change with a change in the resistance element resistance.

Bright-from-the-start compact fluorescent lamp with lumen-shift elimination circuitry

A fluorescent lighting device includes an arc tube, an exhaust tube extending from the arc tube, and an amalgam. A resistive heater is located adjacent to at least one of the arc tube and the exhaust tube. A power supply circuit is operatively coupled with the resistive heater. When the fluorescent lighting device is switched from an OFF state to an ON state, the power supply circuit temporarily energizes the resistive heater, thereby heating the at least one of the arc tube and the exhaust tube while the resistive heater is energized, and automatically de-energizing the resistive heater after said heating.

Amalgam heater for fluorescent lamps

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

A fluorescent lighting device includes a ballast and a tube. An amalgam is located within the tube. A resistive heater is operatively coupled with the ballast, to receive electrical power from the ballast while the fluorescent lighting device is in an OFF state. The resistive heater is mounted near the amalgam to transfer heat to the amalgam while the fluorescent lighting device is in the OFF state.

Amalgam temperature maintaining device for dimmable fluorescent lamps

Growing community of inventors

Budapest, Hungary

Jácint Gergely