Lamp circuit

Lamp circuit with filament current fault monitoring means

Lamp driving device and driving method thereof

Lamp filament drive scheme providing for control of filament vol

Light source device

Light source lighting device

Lighting device for fluorescent lamp

Lighting device for gas discharge tube with insulated discharge

Lighting system with caring preheating of gas discharge lamps

Lighting unit, low-pressure mercury discharge lamp, supply unit,

Low cost, precision electronic starter

Low-pressure discharge lamp driving circuit

Magnetic ballast for fluorescent lamps

Magnetron controller with transformer controlling the inrush...

Magnetron device

Magnetron energizing circuit

Magnetron mode detector

Magnetron operating circuit

Method and apparatus for a unidirectional switching, current...

Method and apparatus for control of fluorescent lamps