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Fluorescent Light Circuits, Page 2
Fluorescent Lamp Circuits:  #'s - A         B - D         E - H         I - Z
Last Updated on: Tuesday, August 18, 2015 06:55 AM


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

Backlight CCFL Direct Drive Design ReferenceAN-13 -  Application Note 13. . .  [Microsemi Corp]

 

Ballast that can Be Dimmed from a Domestic Phase Cut Dimmer. -  A system has now been developed, based aroundIR2156, whereballast is able to operate with minimal flicker over a considerable portion ofadjustment range of a dimmer andlight output may be controlled over this range from maximum output down to around 10%. . . . 

 

Black Light -  This circuit is a simple ultraviolate light that can be powered by a 6 volt battery or power supply that is capable of supplying 1 or more Amps. Circuit diagram Parts C1 0. 0047uf Mono Capacitor C2 0. 1uf Disc Capacitor D1, D2 1N4007 Diode FTB. . .  [Circuit designed by Aaron Cake]

 

Black Light -  This circuit is a simple ultraviolate light that can be powered by a 6 volt battery or power supply that is capable of supplying 1 or more Amps. Circuit diagram Parts C1 0. 0047uf Mono Capacitor C2 0. 1uf Disc Capacitor D1, D2 1N4007 Diode FTB. . . 

CFL Ballast for 26w/ Sprial Lamp 220Vac Input -  The IRPLCFL5E reference design is an electronic ballast for driving 26W compact fluorescent lamps from 220VAC. The circuit provides all ofnecessary functions for preheat, ignition and onstate operation oflamp and also includesEMI filter andrectification stage. The circuit is built aroundIR2520D Ballast Control IC. . . . 

 

CFL ballast to drive LEDs -  04/26/07  EDN Design Idea   A CFL ballast can drive a string of as many as 64 LEDs. . .  [by Christian Rausch, Unterhaching, Germany]

Compact Fluorescent Lamp (CFL). Part 1 -  Compact fluorescent lamps have some benefits in comparison with classic light bulbs. It is lower power consumption (to 80%) and much longer lifetime (5 to 15 times). Disadvantages are longer starts mainly at more expensive types, . . . 

 

Compact Fluorescent Lamp (CFL). Part 2 -  Failures Common failure is broken capacitor C3.It is possible mainly at cheap lamps, where are used cheaper components for lower voltage. Whet the pipe doesn't lights up on time, there are risk of destroying transistors Q1 and Q2 and next. . . 

 

Converter Drives Fluorescent Tube -  03/31/94 EDN Design Idea  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. . .  [by Steven C Hageman, Calex Manufacturing Co, Concord, CA]

 

Digital Dimming DALI Ballast for 32w/T8 110V Input -  This reference design is a high efficiency, high power factor, digital dimming electronic ballast designed to drive rapid start fluorescent lamp types. The design contains an active power factor correction circuit for universal voltage input as well as a ballast control circuit using the IR21592. The design also includes a PIC16F628 microcontroller and an isolation circuit for connecting to a Digitally Addressable Lighting Interface (DALI). . . . 

 

Digital Dimming DALI Ballast for 36w/T8 220V Input -  This reference design is a high efficiency, high power factor, digital dimming electronic ballast designed to drive rapid start fluorescent lamp types. The design contains an active power factor correction circuit for universal voltage input as well as a ballast control circuit using the IR21592. The design also includes a PIC16F628 microcontroller and an isolation circuit for connecting to a Digitally Addressable Lighting Interface (DALI). . . . 

 

Digitally Addressable DALI Dimming Ballast -  A digitally addressable digital dimming ballast has been developed. It conforms to DALI standard requiring very few parts and operates at very low power. Applications include building management or studio lighting where it is desired to control single or groups of lamps for conserving energy, performing lamp maintenance or creating prefect light quality. The design includes the digital dimming ballast, the code of the micro-controller and a platform to control the ballast by PC. . . .  [Authors are Cecilia Contenti and Tom Ribarich Applications Engineer, International Rectifier, Lighting Group]

 

Dimming DALI Ballast for 32w/T8 110V Input -  This reference design is a high efficiency, high power factor, dimming electronic ballast designed to drive rapid start fluorescent lamp types. The design contains an active power factor correction circuit for universal voltage input as well as a ballast control circuit using the IR21592. The design also includes a PIC16F628 microcontroller and an isolation circuit for connecting to a Digitally Addressable Lighting Interface (DALI). . . . 

 

Dimming DALI Ballast for 36w/T8 220V Input -  This reference design is a high efficiency, high power factor, dimming electronic ballast designed to drive rapid start fluorescent lamp types. The design contains an active power factor correction circuit for universal voltage input as well as a ballast control circuit using the IR21592. The design also includes a PIC16F628 microcontroller and an isolation circuit for connecting to a Digitally Addressable Lighting Interface (DALI). . . . 

 

Disturbance simulator checks lines -  10/14/00 EDN Design Idea   The simple line-disturbance simulator in Figure 1 helps you check the immunity of line-powered devices to line disturbances and noise; you can build the device from leftover parts found in a junk drawer. . . .  [by Peter Guettler, APS Software Engineering, Cologne, Germany]

 

Driving VFDs with a PIC -  Vacuum fluorescent displays, known as VFDs (because both vaccuum and fluoroscent are hard to spell) are commonly used in VCRs and microwaves. They are relatively bright and have a low power consumption. Some older calculators used them before LCDs became popular. Having obtained a few Futaba VFDs from a surplus dealer, I went about trying to interface it to a PIC. A plea went out on the PIC list and was soon answered by Kalle Pihlajasaari with a few details on VFDs. . . . 

 

Dual Monostable Drives Quasiresonant Inverter -  02/17/97 EDN Design Idea   A zero-voltage-switching (ZVS]controller usually integrates a one-shot circuit, embodied in a VCO system. An error Amplifier monitors the output voltage and adjusts the VCO's off-time to keep the output value at a constant level. . .  [by Designer Christophe Basso, Sinard, France]


Fluorescent Lamp Circuits:  #'s - A         B - D         E - H         I - Z


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