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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. 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

C1

1

100uf 25V Electrolytic Capacitor

C2,C3

2

0.01uf 25V Ceramic Disc Capacitor

C4

1

0.01uf 1KV Ceramic Disc Capacitor

R1

1

1K 1/4W Resistor

R2

1

2.7K 1/4W Resistor

Q1

1

IRF510 MOSFET

U1

1

TLC555 Timer IC

T1

1

6V 300mA Transformer

LAMP

1

4W Fluorescent Lamp

MISC

1

Board, 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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