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Fluorescent Light Circuits, Page 1
Fluorescent Lamp Circuits:  #'s - B     C - I     J - Z
Last Updated on: Friday, October 03, 2014 10:37 AM


Circuits Designed by Dave Johnson, P.E. :
  • 1 WATT FLUORESCENT LAMP NIGHT LIGHT
    If you are tired of replacing small night light lamps, try this circuit. The line powered circuit uses a long life cold cathode fluorescent lamp. A simple charge pump technique runs the lamp without any transformer.

  • 5W FLUORESCENT LAMP INTENSITY MODULATOR
    The circuit was designed to experiment with using small fluorescent lamps as a broad pattern source of modulated light. The circuit hits the small lamp with narrow 1us pulses at a rate of 10KHz. Each pulse launches about 10 watts of visible light. The lamp starting method is a bit crude but the circuit does work.


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

1 Watt Fluorescent Lamp Night Light -  If you are tired of replacing small night light lamps, try this circuit…. [Designed by David A. Johnson]
5W FLUORESCENT LAMP INTENSITY MODULATOR
The circuit was designed to experiment with using small fluorescent lamps as a broad pattern source of modulated light. The circuit hits the small lamp with narrow
…. [Designed by David A. Johnson]
12 Volt DC Fluorescent Lamp Driver (Aaron Cake) -  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 04/03/02)
12 Volt fluorescent lamp drivers -  Three schematics of 12 V drivers for 2, 8 and 20 Watt, plus a lot of explanations about fluorescent tubes. Use the drivers for camping, emergency, boating, etc. [Manfred Mornhinweg]
12v Fluorescent Inverter -  This is a low-cost project for 20 or 40 watt fluorescent tubes. However the most efficient is to use a 40 watt tube (or two 20 watt tubes in series)......(project added 04/09)
12VDC Fluorescent Lamp Driver -  A number of people have been unable to find the transformer needed for the Black Light project, so I looked around to see if I could find a fluorescent lamp driver that does not require any special components. I finally found one in Electronics Now.....(electronic design added 6/07)
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 (Aaron Cake) -  This40W fluorescent lamp inverter allows you to run40W fluorescent tubes from any12V source capable of delivering3A. (added 8/03)
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)
5W Fluorescent Lamp Intensity Modulator -  The circuit was designed to experiment with using small fluorescent lamps as a broad pattern source of modulated light. The circuit hits the small lamp with narrow 1us pulses at a rate of 10KHz. Each pulse launches about 10 watts of visible light. The lamp starting method is a bit crude but the circuit does work..... [Designed by David A. Johnson]
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,.....(app note added 2/06)
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),....[Designed by Andrew R. Morris  (added 9/05)]
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]
A simple inverter for florescent Lamps -  You can use this to light up fluorescent tubes from a DC source. Excellent way to recycle your dead fluorescent bulbs and energy saver lamps. Contents: Schematics, diagrams, PCBs, and photos.….(electronic schematic added 08/08)
ABR-42022/ ML4833 220V Non-Dimming Ballast Design -  Fairchild Application Notes / (app note added 6/06)
Addressable DALI Dimming Ballast -  (electronic circuit added 4/05)
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 r.....(app note added 2/06)
AN-13 LX1686 Backlight CCFL Direct Drive Design Reference -  Application Note Microsemi 1401 (added 3/07)
AN17 Emergency Lighting Systems & 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-33 Enhanced Multi-mode CCFL Controller -  Application Note Microsemi 1405 (added 2/07)
AN-378: A Novel Process for Vacuum Fluorescent   VF Display Drivers -  National Semiconductor Application Note.....[App Note]
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]
AN809: Digitally Addressable DALI Dimming Ballast App. -  Microchip Application Note Published 10-Apr-02.....[App Note]
Backlight CCFL Direct Drive Design Reference AN-13 -  Application Note 13 from Microsem.....[App Note]
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 08/08/08)

Fluorescent Lamp Circuits:  #'s - B     C - I     J - Z

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