FLUID TREATMENT DEVICE AND LIGHTING CIRCUIT

Light source device, and sterilizing/deodorizing device

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

Retrofit LED tube for replacing a fluorescent tube

Voltage booster isolation transformer system and method of operating the same

Systems and methods for operating a light system

Boost converter

Multi-channel dual-mode digital control LED driving circuit and LED lamp

Lighting unit with near field communication, integrated circuit and methods therefor

Converter with control loop

Discharge lamp driving device, projector, and discharge lamp driving method

Method of independently controlling computer lighting

LED (light-emitting diode) string derived controller power supply

Magnetoelectric device capable of storing usable electrical energy

LED (light-emitting diode) string derived controller power supply

Mains synchronized PWM dimming

Discharge lamp lighting device, discharge lamp lighting method, and projector

Power factor correction circuit, operating device for a light-emitting means and method for controlling a power factor correction circuit

Pre-charging inductor in switching converter to achieve high PWM dimming ratio in LED drivers

Boost and linear LED control

Minimum off time control systems and methods for switching power converters in discontinuous conduction mode

Structure of LED light set

Circuit arrangement and method for operating at least one discharge lamp

Method for controlling a power factor correction circuit, power factor correction circuit and operating device for an illuminant

Method for generating radiation at resonant transitions of metal atoms

Gas light system and method

Electronic ballast

Power quality enhancement

Electric lighting driver circuit

Emergency battery converter

Computer lighting control

Electronic ballast with power factor correction

Light source device, projector, and method of driving discharge lamp

Luminaire

Power factor correction circuit of an electronic ballast

System and method for supplying constant power to luminuous loads with power factor correction

Triac dimmable power supply unit for LED

ELECTRONIC DEVICE CONTAINING NOISE SHIELD

Chip-housing module and a method for forming a chip-housing module

Lighting device

Driver circuit for driving a load circuit

Electronic ballast

Method for feeding light sources and related device

RESONANCE CIRCUITRY FOR A FIELD EMISSION LIGHTING ARRANGEMENT

Multi-output electronic ballast

Compensation circuit for current peaking reduction in notification appliances

Power factor correction method and device for discharge lamps, for example high pressure sodium lamps

Method and apparatus providing universal voltage input for solid state light fixtures

Method for controlling a voltage transformer for overvoltage protection, voltage transformer and operating device having a voltage transformer

CURRENT RINGING FILTER FOR DIMMABLE COMPACT FLUORESCENT LAMPS

Full-bridge electronic ballast having simplified continuous-conduction-mode charge pump PFC circuit

RESONANT POWER CONVERTER DRIVING AN INDUCTIVE LOAD LIKE A DISCHARGE LAMP

POWER APPARATUS AND METHOD OF SUPPLYING POWER

Programmable high voltage energy saving system

Detector circuit and method for actuating a fluorescent lamp

High-efficiency DC ballast arrangement with automatic polarity protection and emergency back-up for lighting fixture in a suspended DC-powered ceiling system

Inrush current protection

Method and circuit arrangement for making a lamp wattage available for operating at least one gas discharge lamp

FLUORESCENT LAMP BASE CAP AND METHOD OF ADJUSTING A BASE CAP OF A FLUORESCENT LAMP

Power control

Charge pump electronic ballast for use with low input voltage

Electronic operating device having an output network for operating at least one discharge lamp

Electronic ballast and method for operating at least one discharge lamp

Electronic ballast control circuit

Capacitance reducing method for a pulsed activated device and associated devices

Circuit arrangement and method for operating discharge lamps

Modular programmable lighting ballast

Light source driving device

Circuit arrangement comprising a voltage transformer and associated method

ENERGY SAVING LUMENS SETTABLE DEVICE FOR FLUORESCENT LAMPS

Electronic ballast and method for operating at least one discharge lamp

Low cost compact size single stage high power factor circuit for discharge lamps

Error detector in an operating device for lighting devices

DC/AC converter and controller thereof

Digital control circuit of an operating device for lamps

Electronic ballast with high power factor

Step-up driver with minimal switching frequency

Electronic reactive current oscillation-reducing ballast

Fluorescent lamp dimmer with multi-function integrated circuit

METHODS AND APPARATUS FOR A DIMMABLE BALLAST FOR USE WITH LED BASED LIGHT SOURCES

Single-stage electronic ballast for a fluorescent lamp

METHOD FOR SUPPLYING A GAS DISCHARGE LAMP, AND A BALLAST CIRCUIT FOR SUCH LAMP

DC distribution system

ELECTRONIC BALLAST SYSTEM WITH LAMP INTERFACE NETWORK

ELECTRIC DISCHARGE LIGHT-REGULATION MATCHING...

METHODS AND APPARATUS FOR A HIGH POWER FACTOR BALLAST HAVING HIGH EFFICIENCY DURING NORMAL OPERATION AND DURING DIMMING

Equipment and methods for emergency lighting that provides brownout detection and protection

SIDE-EDGE TYPE BACKLIGHT MODULE

Universal input voltage device

FLUORESCENT LAMP AND BALLAST WITH BALANCED ENERGY RECOVERY PUMP

LIGHTING DEVICE AND ILLUMINATION APPARATUS

DISCHARGE LAMP LIGHTING APPARATUS AND DISCHARGE LAMP LIGHTING CONTROL METHOD

Circuit having EMI and current leakage to ground control circuit

ILLUMINATION LIGHT EMITTING ELEMENT AND ILLUMINATION DEVICE PROVIDED THEREWITH

Circuit Arrangement

Discharge lamp lighting apparatus and semiconductor integrated circuit

DIGITAL POWER CONTROLLER

Driver circuit having power factor correction function implemented with sinusoidal waveform method

Electronic ballasts with high-frequency-current blocking component or positive current feedback

Power supply circuit for LCD backlight and method thereof

DC-DC CONVERTER, DRIVING APPARATUS HAVING DC-DC CONVERTER, AND DISPLAY DEVICE HAVING DRIVING APPARATUS

Device for driving light source module

Lighting apparatus

DC digital starting device

PFC and ballast control IC

Electronic blast with remote capacitor placement

Power-saving and stabilizing ballast

Single stage resonant power converter with auxiliary power source

Multiple voltage ballast

Power converter with digital signal processor

Method and cell for controlling the power factor of a power supply line

Equipment and methods for emergency lighting that provides brownout detection and protection

Lamp driver circuit with power factor correction circuit coupled to direct-current to direct-current power converter

Inverter circuit for producing power factor correction effect

Circuit arrangement and method for operating at least one electric lamp

Shutdown circuit

Total harmonic distortion reduction for electronic dimming ballast

Projector

Image display device

Discharge lamp ballast apparatus

Control circuit for maintaining constant power in power factor corrected electronic ballasts and power supplies

Electronic ballast

Cold cathode flat fluorescent lamp and driving method therefor

Switching power supply device and method of controlling the switching device

Charge pump interface circuit

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

Equipment and methods for emergency lighting that provides brownout detection and protection

Circuit arrangement for operating at least one light source

Sign ballast capacitor assembly

DC-DC converter

Single stage PFC and power converter circuit

Multi-phase input dimming ballast with flyback converter and method therefor

Power factor correction circuit for electronic ballast

Electronic ballast with voltage converter having improved damping arrangement

Circuit for converting an AC voltage to a DC voltage

Circuit having EMI and current leakage to ground control circuit

Circuit having clamped global feedback for linear load current

PFC and ballast control IC

Lighting device for discharge lamp

CFL ballast with passive valley fill and crest factor control

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

Circuit arrangement for operating light sources

Power feedback power factor correction high frequency inverter

Dimmable ballast with resistive input and low electromagnetic interference

Circuit arrangement for power factor correction

Three-phase electronic ballast

Digital power controller for gas discharge devices and the like

Electronic ballast system having emergency lighting provisions and electronic chip

Electronic ballast and operating method for a gas discharge lamp

Boost and linear LED control