12 Volt
DC Fluorescent Lamp Driver: This fluorescent lamp driver
uses a normal120 to 6V step-down transformer in reverse to
step12V to about350-Volt to drive a lamp without the need to
warm the filaments. |
40 Watt Fluorescent Lamp Inverter: This40W fluorescent lamp
inverter allows you to run40W fluorescent tubes from any12V
source capable of delivering3A. |
Black
Light: |
Dual MonoStable Drives Quasiresonant Inverter: 02/17/97 EDN-Design
Ideas / Circuit to power a fluorescent lamp from12V
|
Electronic Ballasts using the Cost Saving IR215X:
application note AN-995 from International Rectifier |
Electronic Fluorescent Lamp Ballast: International Rectifier
application note in PDF format |
Fluorescent Ballast: Design uses Passive PFC and Crest
Factor Control. Also available in PDF format
|
Fluorescent Desk Lamp: This circuit will power a 6
inch4-Watt fluorescent tube off a12 volt supply, consuming300 mA.
It may also be powered by a suitably rated universal AC/DC
adapter. |
Fluorescent Lamps, Ballasts, & Fixtures: |
Half bridge Inverter has Variable Frequency: 10/09/97 EDN-Design
Ideas |
High-Efficiency Inverter Drives Compact Fluorescent :
08/19/02 Electronic Design - Ideas for Design / The
inverter circuit shown is designed to drive a 7-W, four-pin
compact fluorescent lamp (CFL) from a 12-V dc power supply. The
main features of this inverter circuit include direct-drive
capability, preheat for improved startup, high efficiency,
and... |
Low Cost Converter Drives Fluorescent Tubes: 03/31/94 EDN-Design
Ideas |
Low Cost Fluorescent Lighting System: lighting system
suitable for videography |
Powering
Fluorescent Lamps from Low Voltage DC!: inverter circuits |
Preheat Starter for Electronic ballast: 10/04/01 EDN-Design
Ideas / PDF contains multiple circuits - scroll to find the one
of interest / Electronic ballasts for fluorescent lamps use
various techniques to turn on the bulbs. The design usually
involves a compromise between turn-on voltage and lamp life
because the two are inversely related. One way to reach a
reasonable compromise is to initially allow a momentary inrush
current to warm the filaments, followed by a series of
interrupted short circuits across the lamp that generate the
required high voltage to trigger the fluorescent. With a
preheated filament, the necessary strike potential reduces to
half.
|
Switching Regulator Controls CCFT: 02/16/95 EDN-Design
Ideas / You can control the current in a cold-cathode
fluorescent tube (CCFT) and, hence, its brightness with a
switching-regulator IC |