(AN-13) LX1686 Backlight CCFL Direct Drive Design Reference:  Application Note Microsemi 1401 (added 3/07)

(AN-33) Enhanced Multi-mode CCFL Controller:  Application Note Microsemi 1405 (added 2/07)

12 Volt DC Fluorescent Lamp Driver:  This fluorescent lamp driver uses a normal 120 to 6V step-down transformer in reverse to step12V to about350-Volt to drive a lamp without  need to warm  filaments. (added 4/02)

12V florescent light inverter:  (electronic circuit added 3/07)

12VDC Fluorescent Lamp Driver:  (circuit / schematic design added 10/06)

20ma LED Ballast:  I use this circuit for general use to power white LEDs, like a headset light I use on my desk and a keyboard light for my computer. I built it into a tiny Radio Shack project box (270-288), which y no longer sell. I put heat-shrink tubing around  female output connector (RS P/N 273-1743), so that  contacts are not exposed, but you can still plug and unplug it. Designed by Andrew R. Morris  (added 6/06)

3-Way Dimming Cfl Ballast:   3 way dimming system widely adopted in  US with conventional filament lamps consists of a light bulb that has a modified Edison screw type base which allows 3 connections to be made to a special lamp socket that also has 3 connections.  (added 3/05)

40 Watt Fluorescent Lamp Inverter:  This40W fluorescent lamp inverter allows you to run40W fluorescent tubes from any12V source capable of delivering3A. (added 4/02)

42 Watt Compact Fluorescent Ballast:   CFL-2 is an electronic ballast design for driving a 42 watt compact fluorescent lamp from a 120 or 230 volt AC line.  circuit was designed using  IR2156 Ballast Driver IC.  main features of  circuit are programmable frequency, preheat time, over-current threshold and dead time.  (added 3/05)

8w Fluorescent Lamp Inverter: Compact DC-to-AC Inversion for Efficient Lighting Systems:  Zetec Semiconductors  Applications Notes An enhanced TO92 packaged one transistor design that uses a minimum of components, and yet achieves performance and efficiency normally associated with much larger packaged switching transistors. The design is optimised to provide a fast turn-off condition for  transistor, reby allowing  inclusion of  80V, 2A DC rated ZTX652 yielding efficient and reliable operation. Typical waveforms and full circuit details are provided.   (app note added 2/06)

A 3-Way Dimming Cfl Ballast:  The 3 way dimming system widely adopted in  US with conventional filament lamps consists of a light bulb that has a modified Edison screw type base which allows 3 connections to be made to a special lamp socket that also has 3 connections.  (added 3/05)

A Ballast that can Be Dimmed from a Domestic (Phase Cut) Dimmer.:  A system has now been developed, based around  IR2156, where  ballast is able to operate with minimal flicker over a considerable portion of  adjustment range of a dimmer and  light output may be controlled over this range from maximum output down to around 10%.  (added 3/05)

A Novel Process for Vacuum Fluorescent   (VF) Display Drivers:  National Semiconductor Application Note   (app note added 6/06)

ABR-42022 / ML4833 220V Non-Dimming Ballast Design:  Fairchild Application Notes / (app note added 6/06)

AN1 8w Fluorescent Lamp Inverter: Compact DC-to-AC Inversion for Efficient Lighting Systems:  Zetec Semiconductors  Applications Notes An enhanced TO92 packaged one transistor design that uses a minimum of components, and yet achieves performance and efficiency normally associated with much larger packaged switching transistors. The design is optimised to provide a fast turn-off condition for  transistor, reby allowing  inclusion of  80V, 2A DC rated ZTX652 yielding efficient and reliable operation. Typical waveforms and full circuit details are provided.   (app note added 2/06)

AN17 Emergency Lighting Systems and Battery Powered Fluorescent Lighting: High Current To92 Switching Transistors Provide 87% DC-AC Conversion Efficiency:  Zetec Semiconductors  Applications Notes An overview of  principles behind typical emergency lighting systems, fluorescent tube behaviour, and  requirements of  transistors for efficient voltage inversion. The note also includes two "Royer" based designs for low voltage systems.   (app note added 2/06)

AN-378: A Novel Process for Vacuum Fluorescent   (VF) Display Drivers:  National Semiconductor Application Note   (app note added 6/06)

AN-42001 / Low Cost Non-Dimming 220V Ballast Design:  Fairchild Application Notes / (app note added 6/06)

AN-440: New CMOS Vacuum Fluorescent Drivers Enable Three Chip System to Provide Intelligent Control of Dot Matrix VF Display:  National Semiconductor Application Note   (app note added 6/06)

AN809: Digitally Addressable DALI Dimming Ballast App.:  Microchip Application Note Published 10-Apr-02   (app note added 6/06)

Backlight CCFL Direct Drive Design Reference (AN-13):  Application Note 13 from Microsem  (app note added 6/06)

Ballast that can Be Dimmed from a Domestic (Phase Cut) Dimmer.:  A system has now been developed, based around  IR2156, where  ballast is able to operate with minimal flicker over a considerable portion of  adjustment range of a dimmer and  light output may be controlled over this range from maximum output down to around 10%.  (added 3/05)

Black Light:  (circuit added 7/02)