12VDC Fluorescent Lamp Driver


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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. Here it is. It uses a normal 120 to 6V stepdown transformer in reverse to step 12V to about 350V to drive a lamp without the need to warm the filaments.

Schematic

Schematic for lamp driver

Parts

Part
Total Qty.
Description
Substitutions
C11100uf 25V Electrolytic Capacitor
C2,C320.01uf 25V Ceramic Disc Capacitor
C410.01uf 1KV Ceramic Disc Capacitor
R111K 1/4W Resistor
R212.7K 1/4W Resistor
Q11IRF510 MOSFET
U11TLC555 Timer IC
T116V 300mA Transformer
LAMP14W Fluorescent Lamp
MISC1Board, Wire, Heatsink For Q1

Notes

  1. Q1 must be installed on a heat sink.
  2. A 240V to 10V transformer will work better then the one in the parts list. The problem is that they are hard to find.
  3. This circuit can give a nasty (but not too dangerous) shock. Be careful around the output leads.

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Comments

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matt
12VDC Fluorescent Lamp Driver
Friday, November 21, 2014 6:03:28 PM
Hi, how long of an arc will this produce?
andikovaci
12VDC Fluorescent Lamp Driver
Thursday, January 05, 2012 3:34:19 AM
HI, I don't understand the 6V 300mA Transformer, u mean that 6V should be the output or the input of the transformer? If 6V is the output the input haw should be?
rohit
12VDC Fluorescent Lamp Driver
Friday, October 21, 2011 11:39:00 PM
why dont you post a circuit which has a input of 12vdc and out put 240v AC suitable to power any cfl, maximum out of 40watts
Dmax
12VDC Fluorescent Lamp Driver
Saturday, April 02, 2011 10:09:51 PM
Thanks for posting this up, I built the driver today , I had to use a NPN power transistor as I thats allI had at hand. works very well ,agin thank you :)
fazle haq
12VDC Fluorescent Lamp Driver
Tuesday, March 15, 2011 3:03:21 PM
i have a layout of PCB which has 6 resisters,3 capacitors,4 transistors one of them is 2N3055 and transformer of 220v/9v and 12 or 2A...so any one knows this circuit i can give the page
Sagar
12VDC Fluorescent Lamp Driver
Wednesday, July 21, 2010 4:51:24 AM
What does mean of T1,6V 300mA Transformer.Can you provide in detail.Also what about one end of both fillament both are open
anonymous
12VDC Fluorescent Lamp Driver
Saturday, March 20, 2010 9:22:03 AM
can I skip C4??
Carmelo
12VDC Fluorescent Lamp Driver for 8w neon
Friday, September 25, 2009 3:39:33 PM
Hi, i have 8w 56Volt 145 ma neon, this circuit i good for this one??? Otherwise how can modify this circuit for my neon??? Thanks
hamed
12VDC Fluorescent Lamp Driver
Saturday, July 18, 2009 11:18:53 AM
hi i cant use this map!this lampp is 4 w or 40w ?? tanks
Johnny
12VDC Fluorescent Lamp Driver
Sunday, May 17, 2009 7:35:44 AM
The transistor did not get hot when I put a transformer on this curcuit with a primary resistance of >3.00 but did with lower resistances.
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