About the author, janos melis who has been involved in research and development of hid electronic ballasts for over 17 years. Pdf analysis and design method for highfrequency self. Careful circuit design increases efficiency of electronic ballasts. However, if one lamp fails, all other lamps in the circuit will extinguish.
Many current and all future electronic ballast part numbers will not use the rhtp suf. If your facility is in use more than 8 hours per day, it may be cost. Ballast design a 26w electronic ballast circuit without pfc is designed around the irs2526ds mini8 ballast control ic. Mar 15, 2020 an electronic ballast will convert power frequency to a very high frequency to initialize the gas discharge process in fluorescent lamps by controlling voltage across the lamp and current through the lamp.
The circuit includes figure 5 the complete control for the halfbridge resonant output stage and the lamp. Class p ballast protection tp suffix are equipped with a thermally actuated automatic reclosing protective device. A new control method for dimmable highfrequency electronic ballasts. How to design a dimming fluorescent electronic ballast ee times. The software reduces electronic ballast design time, producing a schematic and complete bill of materials. Modern solidstate circuitry makes the electronic ballast practical, reliable and. To fulfill these requirements, the electronic ballast circuit first performs a low frequency acdc conversion at the input, followed by a high frequency dctoac conversion at the output. The procedure predicts preheat, ignition and running conditions based on fluorescent lamp manufacturers specifications.
High frequency electronic ballasts 110 electronic ballast fundamentals the job of a ballast. Electronic ballast design electronics project design. Finally a design example for the feedback controller is given to verify the theoretical analysis. Advanced display page of lamp requirements and ballast operating points. An1543d electronic lamp ballast design on semiconductor. Electronic ballast vs magnetic ballast in terms of. This compact, lightweight, highfrequency electronic ballast is designed to operate off the 230v ac mains supply at 5060 hz and is suitable for 36 40 w fluorescent tubes. Simple control circuits for electronic ballast design. If you installed an led tube that requires ballast removal into a fixture with the ballast still wired in you almost certainly did kill the led tube. At high load currents and high frequency, the transformer requirements for the dual role of frequency control and efficient transformation of output voltage becomes. Replacing standard fluorescent lamps with high efficiency fluorescent lamps saves energy and money.
In present paper the analysis and design procedure of a high frequency self oscillating electronic ballast with constant lamp current control is presented. High frequency unity power factor resonant converter with adjustable brightness for electronic ballast lamp applications m. Ballast losses may also be reduced by using a single ballast to drive three or four lamps, instead of only one or two. The electronic ballast design system ebds is a microcontrolled and fpgabased system and was developed to generate command signals to the half bridge inverter. High frequency electronic ballasts 14 fluorescent ballasts electronic optanium highefficiency electronic ballasts for a broad range of t8 lighting systems versatile and highperforming, advances optanium highefficiency electronic ballasts represent a breakthrough in fluorescent t8 system componentry. The national lighting product information program nlpip prepared this guide to specifying high frequency electronic. Ballast design assistant bda software a software program bda v4. Wattageindependent dynamic conductance model of compact. Can i put a led tube in a high frequency ballast fixture. In this paper, the same lamp model is simulated for high frequency operation and then validated experimentally with a 9 w test cfl driven by a compatible electronic ballast e ballast. Dynamic analysis of frequencycontrolled electronic ballasts. Principles of hf operation and frequency limits a characteristic of fluorescent lamps is that their efficacy lumenswatt increases with frequency. An electronic ballast or electrical ballast is a device which controls the starting voltage and the operating currents of lighting devices it does this through the principle of electrical gas discharge. Providing the proper voltage to establish an arc between the.
The lamp requires a current to preheat the filaments, a high voltage for ignition, and a high frequency ac current during running. While set to be replaced by more efficient led solutions, fluorescent tubes and compact lamps cfl are still rather popular. This program includes a graphical interface with a 5step design procedure. As new lamp types emerge on the market, with virtually no highfrequency lamp data available, the task of designing the output stage becomes even more difficult.
If your facility is in use more than 8 hours per day, it may be costeffective to replace standard ballasts immediately. Our light head and ballast are fully compatible with original m18 system and the dmx function can be customized with extra cost. For the purpose of setting efficiency standards, the department chose not to differentiate within a technology such as electronic high frequency ballasts and decided to choose bef levels that the vast majority of models would be able to meet. The high output frequency of an electronic ballast refreshes the phosphors in a fluorescent lamp so rapidly that there is no perceptible flicker. High frequency unity power factor resonant converter with. This approach has been used to design commercial highfrequency electronic ballasts. Ballast design program on your computer to work for microsoft.
This filtered current is then passes through a series of induction coils and fed to a high frequency oscillator. The flicker index, used for measuring perceptible light modulation, has a range from 0. As new lamp types emerge on the market, with virtually no high frequency lamp data available, the task of designing the output stage becomes even more difficult. The design contains an active power factor correction circuit for universal voltage input as well as a ballast control circuit using the ir2159. The development of a highfrequency electronic stevens ballast for fluorescent lamps is described. Electronic ballast desing program electronics projects circuits. Company confidential crcm boostmode pfc commonly used 17. Find electronic high frequency ballasts related suppliers, manufacturers, products and specifications on globalspec a trusted source of electronic high frequency ballasts information. Spr diagrams for low frequency square wave electronic ballasts.
Electronic ballast design is becoming more common due to its superior performance. Guide to specifying highfrequency electronic ballasts. A new procedure for highfrequency electronic ballast design. Company confidential adding power factor correction 16. Get free 2day shipping on qualified electronic, replacement ballasts products or buy lighting. Designing a high frequency electronic ballast output stage and choosing component values for various lamp types can be a difficult engineering challenge with many hidden pitfalls. High efficient electronic ballast with high power factor and low thd total harmonic distortion is presented. Though its initial cost is higher than the magnetic ballast, its payback will come in the long run.
Introduction highfrequency electronic ballasts for fluorescent lighting systems, also called. There is also a lot of features inductor desinger tool can be used in different applications. Peter green, senior lighting systems engineer, international rectifier, lighting. Ee 5741 design of electronic ballasts eric persson.
Now filtered dc voltage is fed to the highfrequency oscillation stage where oscillation is typically square wave and frequency range are from 20 khz to 80 khz. In addition, electronic ballasts, which convert the 60 hz supply frequency to high frequency, operate fluorescent lamps more efficiently than is possible at 60 hz. High frequency ballast solution stmicroelectronics. About the author electronic ballast design for hid. A practical overview of high efficient electronic ballast design for hid lamps. Electronic ballast operates at high frequencies from 20khz to 45khz and uses electronics circuitry to optimize the operation of the lamp. A new control method for dimmable highfrequency electronic. Operating the ballast at higher frequency means that the design can. Guide to specifying highfrequency electronic ballasts lighting.
A ballast for a fluorescent lamp has two primary functions. A new ballast design software program is also demonstrated. An electrical ballast is a device placed in series with a load to limit the amount of current in an electrical circuit. In this paper, the same lamp model is simulated for highfrequency operation and then validated experimentally with a 9 w test cfl driven by a compatible electronic ballast eballast. This reference design is a high efficiency, high power factor and digital dimming electronic ballast designed to drive rapid start fluorescent lamp types. After that, filtration of this dc voltage is done by using capacitor configuration. The vco pin sets the frequency of the halfbridge gate driver outputs, ho and lo pins. High frequency unity power factor resonant converter with adjustable brightness for electronic ballast lamp international organization of scientific research 3 p a g e when the mosfet q2 switches on the capacitor c1 charges by the source line current through the booster. Presenting specific features of hid lamps and related ballast requirements, and energy saving comparison method of different ballast. This paper presents an overview for designing a dimming electronic ballast for a t5 35w lamp. Ballasts can typically put out 300600 volts on the secondary side, so something deigned to run on 120v will not last long. A design methodology for acoustic resonancefree, high. High frequency ballasts in fluorescent lighting electronic. Ee 5741 design of electronic ballasts eric persson exec.
This hardware is responsible for the autonomous frequency generation in fm mode and pulse width pw both are. Microcontrollers simplify lamp ballast design power. This paper presents a methodology to design acoustic resonancefree, highfrequency, dimmable electronic ballasts for highpressure sodium vapour hpsv lamps having a range of rated wattage 70400 w. The primary advantage of highfrequency fluorescent lighting is the improvement of efficacy,as also reducing lamp flicker that is sometimes.
Microcontrollers simplify lamp ballast design power electronics. It outputs 10%15% more light output, does not have the 5060 cycles irritating hum, high frequency switching that does not have visible flicker to the human eyes, cooler and more reliable. Designing a highfrequency electronic ballast output stage and choosing component. It is claimed that use of this ballast could reduce use energy consumption by 1. Ballast basics modern electronic ballasts operate at a frequency above 20,000 hz. Ballast curves and power control, interactive design aid for electrical engineers, software version 2002. High frequency electronic ballasts philips advance ballast. Analysis and design of electronic ballast for stabilization. They may be used in addition to electronic ballast circuits produced ir, irs. The stevens ballast has a basic efficiency of 29 percent when used with conventional lamps. Electronic ballast vs magnetic ballast in terms of electrical. The software, irplbda4, reduces electronic ballast design time, producing a schematic and complete bill of materials.
The high output frequency of an electronic ballast refreshes the phosphors in a fluorescent lamp. The national lighting product information program nlpip was. The steps include selecting the control ic, the ballast input configuration, the lamp type, and the lamp configuration. About the author electronic ballast design for hid lamps. The program is easy to use after installation ballast design v4 click on the. This application also uses the eccp modules interrupt mechanism, which can adjust the drive signals for the halfbridge power inverter with small frequency steps by means of a simple software dithering scheme. New version of ballast design software is free power. Lamp requirements, dimming control methods, and resonant output stage design are all discussed in this paper. Compact, lightweight, highfrequency electronic ballast designed for tl 618 w and compact fluorescent pl 724 w lamps benefits optimum lamp lifetime compared with electromagnetic gear circuits is achieved in applications with long burning hours iec cycle.
Transformer and inductor design for high frequency switchmode power converters, not published. He has written several papers, studies and patents in electronic ballast subject. Variables such as humidity, line voltage, fixture design and variations within the. The electronic ballast consists of a rectifier which converts the a. Each requires a special ballast design to operate the lamps. They are driven by a high frequency power converter that most often has a power factor correction pfc frontend to ensure high efficiency and small size and weight.
New features in this version include support for dc input voltage applications and a new timedomain graph feature, based on a simplified numerical analysis technique. St lighting designer design your fluorescent tubes and cfls electronic ballast for ballast design program quite stylish and advanced pfc, etc. Ballast controller ic 2 was used to program the operating frequencies. Time domain graph showing actual ballast output waveforms. The lamp requires a current to preheat the filaments, a highvoltage for ignition, and a highfrequency ac current during running. It outputs 10%15% more light output, does not have the 5060 cycles irritating hum. Increasing the frequency of operation from that of the normal mains supply of 5060 hz to typically 30khz improves lamp efficacy by approximately 10%. Smartmate 156 t4 high power factor sound rated a high frequency electronic ballasts programmed start, normal light output series advance, 10275 west higgins road, rosemont, il 60018. Instantstart normal light output parallel high power factor sound rated a lamp data number watts win. Sep 27, 2010 how to design an optimal electronic load for high current, lowvoltage power supplies part 2.
Ic fluorescent dimming considerations electronic products. This ballast design uses a mcu to eliminate the need for a separate pfc controller and only requires a few lowcost passive external. How to design an optimal electronic load for highcurrent, lowvoltage power supplies part 2. Replacing standard fluorescent lamps with highefficiency fluorescent lamps saves energy and money. Build an efficient hid lamp driver circuit electronic design. Set your store to see local availability add to cart. They are driven by a highfrequency power converter that most often has a power factor correction pfc frontend to ensure high efficiency and small size and weight. Transformer and inductor design for high frequency. Designing a highfrequency electronic ballast output stage and choosing component values for various lamp types can be a difficult engineering challenge with many hidden pitfalls. How to design a dimming fluorescent electronic ballast. An electronic ballast will convert power frequency to a very high frequency to initialize the gas discharge process in fluorescent lamps by controlling. The primary advantage of high frequency fluorescent lighting is the improvement of efficacy,as also reducing lamp flicker that is sometimes.