Method and apparatus for determining a target light intensity from a phase-control signal

Method and apparatus for determining a target light intensity from a phase-control signal

Light emission control device, light source device, and projection-type video display device

Lamp system having a gas-discharge lamp and operating method adapted therefor

Method and apparatus for determining a target light intensity from a phase-control signal

ELECTRONIC BALLAST SYSTEM FOR SIGNAGE LIGHT

Method and apparatus for determining a target light intensity from a phase-control signal

Method and apparatus for determining a target light intensity from a phase-control signal

Driving device and illumination system

Low pressure lamp using non-mercury materials

Relamping circuit

Low pressure lamp using non-mercury materials

LAMP UNIT POWER SUPPLY SYSTEM

Spot mode operation for a discharge lamp

Low pressure lamp using non-mercury materials

Gas discharge lamp ballast with reconfigurable filament voltage

Filament miswire protection in an electronic dimming ballast

Method and apparatus for measuring operating characteristics in a load control device

LAMP DRIVING MODULE

Rejecting noise transients while turning off a fluorescent lamp using a starter unit

LUMINENCE CONTROL OF GAS-DISCHARGE LAMPS

BALLAST INCLUDING A HEATER CIRCUIT

Electronic ballast with power factor correction

Lamp control system, lamp power-saving system and method therefor

Amalgam heater for fluorescent lamps

Passive LC ballast and method of manufacturing a passive LC ballast

Current-preheat electronic ballast and resonant capacitor adjusting circuit thereof

Self-oscillating dimmable electronic ballast

Method and device for driving a gas discharge lamp

Lamp drive device

Lamp ballast having filament heating apparatus for gas discharge lamp

Method and apparatus for determining a target light intensity from a phase-control signal

DRIVING APPARATUS FOR FLUORESCENT TUBES AND METHOD THEREOF

FLOURESCENT LUMINAIRE DRIVE CIRCUIT

START AUXILIARY DEVICE, BALLAST AND ILLUMINATION DEVICE

BALLAST AND ASSOCIATED CONTROL CIRCUIT

Multi-output electronic ballast

Method for Setting an Electronic Ballast, an Electronic Ballast and a Compensating Unit

FLUORESCENT LAMP DRIVE AND A PROTECTION CIRCUIT THEREIN

Dimmer system and method

Method for actuating a discharge lamp and circuit arrangement for operating such a lamp

System and method for processing and forwarding transmitted information

Amalgam-based fluorescent lamp control circuit

Electronic ballast and startup method

Hot cathode preheating start discharge lamp

Fluorescent lamp starter unit having a hot socket insert capability

CIRCUIT AND METHOD FOR DRIVING A LAMP

Method to ensure ballast starting regardless of half cycle input

Fixed-time, fixed-frequency, preheat-type ballast circuit for fluorescent light tube

Method of controlling an operating frequency of an electronic dimming ballast

Method and apparatus for measuring operating characteristics in a load control device

Electronic dimming ballast having advanced boost converter control

DIMMABLE AMALGAM LAMP AND METHOD FOR OPERATING THE AMALGAM LAMP WHILE DIMMED

Gas-discharge lamp controller utilizing a novel reheating frequency generation mechanism

Electronic ballast having a partially self-oscillating inverter circuit

Rejecting noise transients while turning off a fluorescent lamp using a starter unit

Dimmer conduction angle detection circuit and system incorporating the same

Detector circuit and method for actuating a fluorescent lamp

Method of striking a lamp in an electronic dimming ballast circuit

LIGHTING DEVICE, BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY DEVICE

METHOD OF CONTROLLING A FLUORESCENT LAMP, A CONTROLLER AND A FLUORESCENT LAMP

Power factor compensating method compensating power factors of electronic devices connected to a common power source

Method for operating a fluorescent lamp

Network master for wireless fluorescent lamp lighting control networks

Illumination lighting apparatus, illumination apparatus, and illumination system

Fluorescent lamp ballast with electronic preheat circuit

Ballast with lamp-diagnostic filament heating, and method therefor

Electronic ballast device and operation method thereof

Method for Operating a Gas Discharge Lamp and Lighting System Comprising a Gas Discharge Lamp

Method and circuit arrangement for operating at least one discharge lamp

Apparatus for controlling integrated lighting ballasts in a series scheme

Fluorescent ballast with inherent end-of-life protection

ELECTRONIC BALLAST FOR A FLUORESCENT LAMP

Restart circuit for multiple lamp electronic ballast

Electronic ballast control circuit

Circuit arrangement for operating a series circuit of at least two low-pressure gas-discharge lamps, and a corresponding method

Circuit arrangement for operating a low-pressure gas discharge lamp and corresponding method

Method for ascertaining a type of a gas discharge lamp and electronic ballast for operating at least two different types of gas discharge lamps

Variable light-level production using different dimming modes for different light-output ranges

FAULT DETECTION AND SHUTDOWN CONTROL CIRCUITS AND METHODS FOR ELECTRONIC BALLASTS

Discharge lamp lighting device and light fixture

Dimmable light generating device

Energy saving control for a fluorescent light in a merchandising machine and a method of retrofitting the control in a merchandising machine

Discharge lamp operating device, illumination device and liquid crystal display device

Ballast for a discharge lamp with adaptive preheating

Circuit arrangement, and method for the operation of a fluorescent lamp

Dimming electronic ballast with preheat current control

CIRCUIT ARRANGEMENT FOR OPERATING A VACUUM GAS DISCHARGE LAMP

Using pulse density modulation for controlling dimmable electronic lighting ballasts

Circuit arrangement and method for operating at least one first and a second lamp

Electronic ballast having a partially self-oscillating inverter circuit

Discharge lamp lighting device, illumination device, and liquid crystal display device

Electronic ballast with multimode lamp power control

Discharge lamp ballast and fixture with controlled preheating

Driving circuit and method of backlight module

Apparatus and method enabling fully dimmable operation of a compact fluorescent lamp

Power supply for a hot-filament cathode

Method for powering a control circuit for a gas discharge lamp during pre-heating of said lamp, and a device for performing said method

Single-stage electronic ballast for a fluorescent lamp

Drive circuit of fluorescent display

Method for driving a fluorescent lamp, and lamp ballast

Apparatus and method for controlling the filament voltage in an electronic dimming ballast

Voltage fed programmed start ballast

Electronic ballast and method for operating an electric lamp

Ballast being capable of saving the use of internal connection terminals

Filament power supply circuit for vacuum fluorescent display

STAND ALONE LAMP FILAMENT PREHEAT CIRCUIT FOR BALLAST

Lighting system

Electrical discharge tube, illumination apparatus for display device, liquid crystal display device, and liquid crystal display television

Fluorescent lamp driving device and liquid crystal display apparatus using the same

Electronic ballast for a gas discharge lamp with controlled filament heating during dimming

Electronic ballast for a low-pressure discharge lamp with a micro-controller

METHOD AND CIRCUIT FOR HEATING AN ELECTRODE OF A DISCHARGE LAMP

Method for setting an electronic ballast

Drive circuit for a switchable heating transformer of an electronic ballast and corresponding method

DISCHARGE LAMP LIGHTING DEVICE

Circuit Arrangement for Operation of a Discharge Lamp with a Switchable Tuned Capacitor

Electronic ballast and method for operating an electrical lamp

METHOD AND DEVICE FOR DRIVING A DISCHARGE LAMP

INTEGRATED CIRCUIT WITH A PREHEAT CONTROL FOR A BALLAST

DRIVING METHOD AND CONTROL METHOD OF HOT CATHODE FLUORESCENT LAMP, AND ESTIMATION METHOD OF TEMPERATURE OF FILAMENT IN HOT CATHODE FLUORESCENT LAMP

Method for driving of a fluorescent lighting and a ballast stabilizer circuit for performing the same

Fluorescent tube lamp drive circuit

Control circuit of a driving circuit for regulating the switching frequency of a discharge lamp

Ballast with ignition voltage control

Program start ballast

Ballast with filament heating and ignition control

Method For Lamp Life Control of a Gas Discharge Lamp, a Gas Discharge Lamp Driver Circuit, a Gas Discharge Lamp and an Assembly of a Gas Discharge Lamp and a Lamp Driver Circuit

Electronic ballasts for lighting systems

Inductively-powered gas discharge lamp circuit

Method for operating a fluorescent lamp that is connected to a series resonant circuit

Lamp-operating unit and low-pressure mercury discharge lamp

Preheat control device for modulating voltage of gas-discharge lamp

Starter for a gas discharge light source

Electronic ballast with preheating and dimming control

Starting circuit for electric discharge lamp

Discharge lamp ballast device and lighting appliance

Ballast circuit for gas discharge lamps

Filament Cutout Circuit

DRIVING CIRCUIT AND METHOD FOR FLUORESCENT LAMP

Inductively powered secondary assembly

Light control fluorescent lamp and circuit thereof

Fluorescent tube electronic rectifier

Voltage fed inverter for fluorescent lamps

Dimming ballast and method

Apparatus and method for controlling the filament voltage in an electronic dimming ballast

Lighting fixture and method for operating same

Inductively powered gas discharge lamp

Apparatus and methods for making spectroscopic measurements of cathode fall in fluorescent lamps

Apparatus and methods for making spectroscopic measurements of cathode fall in fluorescent lamps

Electronic ballast

Control system for fluorescent light fixture

Circuit arrangement and method for operating at least one lamp

Method and apparatus for the closed loop and open loop control of filament heating for lamps

Electrical circuit for fluorescent lamps

Method of controlling cathode voltage with low lamp's arc current

Ballast with filament heating control circuit

Portable fluorescent task lamp

Discharge lamp lighting device and lighting system

Apparatus and methods for making capacitive measurements of cathode fall in fluorescent lamps

Apparatus and methods for making capacitive measurements of cathode fall in fluorescent lamps

Apparatus and methods for making capacitive measurements of cathode fall in fluorescent lamps

Electronic ballast

Variable frequency half bridge driver

Parallel lamps with instant program start electronic ballast

Discharge lamp lighting device and lighting unit

Light control system with variable arc control including start-up circuit for providing a bias voltage supply

Self-ballasted fluorescent lamp and luminaire

Electronic ballast having a pump circuit for a discharge lamp having preheatable electrodes

System and method for automated filament testing of gas discharge lamps

Apparatus and methods for making capacitive measurements of cathode fall in fluorescent lamps

Ballast for a discharge lamp having a continuous-operation control circuit

Electronic ballast and controlling method thereof

Ballast circuit for operating a gas discharge lamp

Electronic ballast with adaptive lamp preheat and ignition

Lighting control system with variable arc control including start-up circuit for providing a bias voltage supply

Arrangement in connection with a coupling device of a fluorescent lamp

Method of manufacturing a lamp assembly

Operating circuit and operating method for a gas discharge lamp

Apparatus and methods for making spectroscopic measurements of cathode fall in fluorescent lamps

Apparatus and methods for making capacitive measurements of cathode fall in fluorescent lamps

Method for operating at least one low-pressure discharge lamp

Device for heating electrodes of a discharge lamp

Method and apparatus for a unidirectional switching, current limited cutoff circuit for an electronic ballast

Method and device for operating a fluorescent tube in an energy saving manner

Power supply for a two-wire smart switch and lighting loads thereof

Self-clamped resonant filament heating circuit