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Fluorescent Light Circuits, Page 3
Fluorescent Lamp Circuits: #'s - B C - I
J - Z
Last Updated on:
Friday, July 18, 2008 11:32 AM
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| Links to electronic circuits, electronic schematics, designs for engineers,
hobbyists, students & inventors: |
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Low Cost Converter Drives Fluorescent Tubes: 03/31/94 EDN-Design Ideas / (added 03/03) In the last few months, several
designers have published circuits for cold-cathode fluorescent-tube (CCFT) power supplies, and a specialized power-supply IC is also now available. However, a significant number of CCFT
applications don't require the complexity and expense of a dual-FET resonant approach. Applications such as electronic night-lights, backlights for industrial equipment, such as gas pumps or
signs, simply can't justify the cost of building a resonant supply. The low-cost circuit in Fig 1 produces a small, very reliable drive for many of the smaller CCFT tubes....
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Low Cost Non-Dimming 220V Ballast Design / AN-42001: Fairchild Application Notes / (Circuit / schematic design added 6/06) |
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ML4833 220V Non-Dimming Ballast Design / ABR-42022: Fairchild Application Notes / (Circuit / schematic design added 6/06) |
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Novel Process for Vacuum Fluorescent (VF) Display Drivers: National Semiconductor -
Application Note (Circuit / schematic design added 6/06) |
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PIC Vacuum Fluorescent Display Interface: (Electronic circuit added 4/05) |
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Powering Fluorescent Lamps from Low Voltage DC!: inverter circuits (Electronic Schematic / circuit added 4/02) |
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Preheat Starter for Electronic Ballast: 10/04/01 EDN-Design Ideas / (Electronic Schematic / circuit added 4/02) / 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. |
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Switching Regulator Controls Ccft: 02/16/95 EDN-Design Ideas / (Electronic Circuit diagram added 03/03) - You can control
the current in a cold-cathode fluorescent tube (CCFT) and, hence, its brightness with a switching-regulator IC |
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Universal Input Linear Fluorescent Ballast using the IR2166: The IR2166 Demo Board is a high efficiency, high power factor,
fixed output electronic ballast designed for driving rapid start fluorescent lamp types. The design contains an EMI filter, active power factor correction and a ballast control circuit using
the IR2166. (circuit design added 3/05) |
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Fluorescent Lamp Circuits: #'s - B C - I
J - Z |
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