High power factor sound rated a high frequency electronic ballasts programmed start, normal light output series advance, 10275 west higgins road, rosemont, il 60018. Peter green, senior lighting systems engineer, international rectifier, lighting group. These mains voltage quicktronic professional ecg offer very high energy efficiency and ensure long lamp life. High frequency electronic ballast provides line frequency. An electronic ballast is usually quieter than a magnetic one, which produces a linefrequency hum by vibration of the transformer laminations. Using shielded enclosures for the lamps may solve the problem, but it is expensive. For use with energy savings lamps only f96t12wm,ss,ew 0 b260i120ma is shorter than standard magnetic ballast. Ballast is necessary to operate lamp ballast operates zvs to minimize switching loss ballast controls frequency to adjust lamp current ballast self protects by shutdown when lamp misbehaves 21. A new procedure for highfrequency electronic ballast. In the past, socalled magnetic ballasts were used extensively. These are secured using quick release stainless steel clips allowing easy access for rapid installation and maintenance. If the coil secondary voltage rises too quickly, excessive high frequency energy is produced. An electronic ballast will convert power frequency to a very high frequency to initialize the gas discharge process in fluorescent lamps.
Ballast basics modern electronic ballasts operate at a frequency above 20,000 hz. Us6150773a model and method for highfrequency electronic. A full product range of t5 high frequency ballasts from osram designed for use with single, twin, triple and quad t5 16mm diameter fluorescent tubes rated between 14w and 80 watts. Because they operate at high frequency, electronic ballasts may produce electromagnetic interference emi or radio frequency interference rfi. An improved electronic ballast inverter for a gas discharge lamp includes an oscillator having at least two switching transistors for operating the gas discharge lamp at a high frequency during steadystate operation, a triggering circuit for initiating the operation of the oscillator, and an electrical circuit connected to the. Technical progress report, october 1, 1993december 31, 1994. This means an electronic ballast will correct for a generator which is slightly off speed. How does the electronic ballast work in tubelights. High frequency starting operation for fluorescent lamp. Reliable and energyefficient, advances broad line of centium high frequency electronic ballasts for t5, t8 and t12 fluorescent lamps offers all of the energysaving properties of advances standard electronic line plus the added benefits of extended life and small can size options for.
Recognized component recognition yellow card listing in. The square wave frequency is not referenced to the line hertz rate. The complete guide to ballasts for fluorescent lights. Ballast controls frequency to adjust lamp current ballast self protects by shutdown when lamp misbehaves 21. This standard is intended to cover high frequency ballasts which have rated opencircuit voltages of 2000 volts or less, operate the lamp at frequencies between 10 khz and 500 khz. Diodes d 8, d 9, d 5, d 6 clamp the output voltage values within the supply rails. However, normal ballastchokes which are woundinductors along with the starter create the high voltage for the tube to start up based on the principle that interrupting an inductor current suddenly creates a high. Nov 06, 2018 3dd07k low frequency amplification shell rated bipolar transistors. Mar 15, 2020 an electronic ballast or electrical ballast is a device which controls the starting voltage and the operating currents of lighting devices. High frequency electronic ballasts philips advance ballast. The electronicballast generates the high voltage for startup using a high frequency oscillator and so does not need the starter.
The primary of this transformer is driven by the current in the lamp circuit and operates at the resonant frequency of lc. Introduction highfrequency electronic ballasts for fluorescent lighting systems, also called. Lights which are operated with a high frequency ballast do not flicker, but instead light up instantly due to the frequency being much quicker. Lr7310 indicates ballast complies with national energy conservation amendments naeca of 1988 to. Unfortunately, the circuit is not self starting and must be pulsed by the diac connected to the. Small size, light weight, high efficacy, longer lifetime and controllable output are the main advantages of highfrequency electronic ballasts for gas discharge lamps. Tridonic basic square compact high frequency ballast. The electronic ballast generates the high voltage for startup using a high frequency oscillator and so does not need the starter. Modern solidstate circuitry makes the electronic ballast practical, reliable and. Diodes d 1 to d 4 and capacitors c 1 to c 3 provide the required dc voltage for the circuit.
A ballast for a fluorescent lamp has two primary functions. Most electronic ballasts for fluorescent lamps provide a sinusoidal. As shown in figures 1 and 2, sales of electronic ballasts in the. Providing the proper voltage to establish an arc between the.
The construction features a grp body and polycarbonate diffuser. While set to be replaced by more efficient led solutions, fluorescent tubes and compact lamps cfl are still rather popular. An electronic ballast can be smaller and lighter than a comparablyrated magnetic one. The high frequency current flowing through the lamp can generate significant radiated noise, which is unacceptable in noisesensitive applications, such as fluorescent lights in airplanes.
A novel singlestage highpowerfactor electronic ballast is presented in this paper. Simple control circuits for electronic ballast design. This energy is then lost into the airwaves by electromagnetic radiation from the ignition wiring. High frequency electronic ballasts 12 fluorescent ballasts electronic standard electronic for t8 and t12 instant or rapid start fluorescent lamps and for 39 watt, 40 watt, and 50 watt t5 rapid start long twin tube lamps reliable and energyefficient, advances broad line of standard electronic ballasts for t8, t12. Electronic ballasts require higher frequency than magnetic ballasts fe 20 khz. An electronic ballast uses solid state electronic circuitry to provide the proper starting and operating electrical conditions to power discharge lamps. Transistors t 1, t 2 and capacitors c 5, c 6 form the half bridge in the circuit electronic ballast for tube light. The april 2020 online edition is now available for viewing and download. However, normal ballast chokes which are woundinductors along with the starter create the high voltage for the tube to start up based on the principle that interrupting an inductor current suddenly creates a high. Small size, light weight, high efficacy, longer lifetime and controllable output are the main advantages of high frequency electronic ballasts for gas discharge lamps. The presented ballast consists of a powerfactorcorrection pfc converter.
A novel singlestage high powerfactor electronic ballast is presented in this paper. This means an increasing current will allow for some more current due to lowered resistance, and the tu. High frequency ballast solution stmicroelectronics. Lr7310 indicates ballast complies with national energy conservation amendments. 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. A twostage, frequency modulated fm, high frequency driven electronic ballast for metalhalide mh lamps is proposed. Pdf files of specifier reports and several searchable databases.
Optanium high efficiency programmed start electronic fluorescent ballasts for t8 lamps programmed start ignition provides extended lamp life in frequent switching applications, such as those where occupancy sensors or motion detectors are being used. Electronic ballasts using the costsaving ir215x drivers. For this reason they feed less power into the lamp than a magnetic ballast does. Advanced highfrequency electronic ballasting techniques for. Basic electronic ballasts for t12 lamp applications. The sterling ii hf features the same lightweight design but incorporates high frequency electronic control gear. The primary advantage of high frequency fluorescent lighting is the improvement of efficacy,as also reducing lamp flicker that is sometimes. Optanium highefficiency programmed start electronic fluorescent ballasts for t8 lamps programmed start ignition provides extended lamp life in frequent switching applications, such as those where occupancy sensors or motion detectors are being used. In this paper a discontinuous conduction mode dcm electronic ballast topology is presented that has a switching frequency of several khz, but gives a 400 hz lamp current, just like a magnetic ballast. Common electronic ballasts convert 60hz line voltage into a much higher frequency. Electronic ballasts 4 introduction high frequency electronic ballasts for. The advantages of highfrequency electronic ballast over older line frequency types. Starting input catalog power ballast tho power temp. Behaviour of a highintensity discharge lamp fed by a high.
The national lighting product information program nlpip prepared this guide to specifying highfrequency electronic. An electronic ballast or electrical ballast is a device which controls the starting voltage and the operating currents of lighting devices. Economic study of replacing conventional ballast with electronic. High frequency driven electronic ballast has been widely adopted for low pressure lamps as it offers a compact light weight lampballast system. The electronicballast generates the high voltage for startup using a highfrequency oscillator and so does not need the starter. It does this through the principle of electrical gas discharge. The ballast is obtained from the integration of a buckboost converter and a halfbridge lc resonant inverter. The highfrequency current flowing through the lamp can generate significant radiated noise, which is unacceptable in noisesensitive applications, such as fluorescent lights in airplanes. Request pdf on oct 1, 2001, enrico santi and others published high.
E14927 advance ballasts which meet the canadian standards association requirements for fluorescent ballasts per cancsa22. High frequency electronic ballasts standard instantstart normal light output parallel high power factor sound rated a lamp data number watts win. The primary advantage of highfrequency fluorescent lighting is the improvement of efficacy,as also reducing lamp flicker that is sometimes. The functions performed by present day electronic ballasts include electromagnetic interference emi filtering to block ballast generated noise, rectification, power factor correction pfc, a halfbridge resonant output stage for high frequency ac control of the lamp, and a control circuit for controlling each of the stages figure 1. Lr7310 indicates ballast complies with national energy conservation amendments naeca of 1988 to energy policy and conservation act epca of 1987. The fluorescent ballast case must be grounded either to the fluorescent fixture or, if remote mounted, by other means such as a wire from the ballast case to ground. High frequency control gear is a modern single ballast that performs the functions of all the different components in the standard switch start circuit. Design and implementation of frequencymodulated electronic. The main advantages of highfrequency electronic ballasts for.
Most electronic ballasts for fluorescent lamps provide a sinusoidal lamp. Electronic ballast for high pressure sodium lamp has reached a matured technological. Without proper fixture and ballast grounding, a shock hazard may exist due to the fluorescent fixture becoming energized by an internal ballast failure to case. Electronic ballast circuit configurations for fluorescent lamps. Pdf download for behaviour of a highintensity discharge lamp fed by a high. An electrical ballast is a device placed in series with a load to limit the amount of current in an electrical circuit a familiar and widely used example is the inductive ballast used in fluorescent lamps to limit the current through the tube, which would otherwise rise to a destructive level due to the negative differential resistance of the tubes voltagecurrent characteristic. A twostage, frequencymodulated fm, highfrequencydriven electronic ballast for metalhalide mh lamps is proposed. Most electronic ballasts for fluorescent lamps provide a sinusoidal lamp current at the switching frequency. High frequency electronic ballast provides line frequency lamp current. Some basic facts and some advanced information on ballasts. Electronic ballasts 4 introduction highfrequency electronic ballasts for. High frequency electronic ballasts standard to rapidstart x normal light output u series lamp data number. The typical electronic ballast is a current fed oscillator in the half bridge configuration. Electronic ignition overview electronic ignition capacitive discharge ignition cdi.
High frequency electronic ballasts programmedstart, normal light output series high power factor sound rated a centiumlow lamp data number ft80w 1 ft55w 1 2 ft50w 1 2 ft40w 1 ft36w 1 2 ft24w 1 2 watts min. The user specifies a plurality of parameters relating to the operation of the fluorescent lamp, including lamp running power, running voltage, maximum preheating voltage for the lamp, minimum running frequency for the lamp, and an input voltage for the ballast. A model and computer program for designing the output stage of a high frequency electronic ballast for a fluorescent lamp. High frequency ballasts in fluorescent lighting electronic. Guide to specifying highfrequency electronic ballasts. Implementation of pulse ignition circuit in electronic. Download the current version of pwrview software from. Pdf design and implementation of frequencymodulated. Fluorescent lamp modelling and electronic ballast design by the.
F0 input volts catalog number certifications 8 line current amps input power ansi watts ballast factor max. In the first part of this dissertation, two novel high power factor singlestage electronic ballast topologies are proposed to solve the poor power factor issue of the cfls that are currently on the. Technical progress report, october 1, 1993december 31, 1994 showing 14 of 5 pages in this report. High power factor ballasts are generally specified for all commercial lighting applications. Though the technology has been turned to lowfrequency square wave driven electronic ballast considering factor. However, power line quality and electromagnetic interference emi issues arise when a simple peak rectifying circuit is used. Tubelights are have negative differential resistance devices,meaning more the current flowing through them,lesser will be its resistance value. The high output impedance of the switching converter operating in dcm stabilizes the lamp. Electronic ballasts lighting research center rensselaer. Making fluorescent lamp ballast measurements with the tektronix. Ee 5741 design of electronic ballasts eric persson exec.
The procedure predicts preheat, ignition and running conditions based on fluorescent lamp. The frequency of the square wave is controlled by output control circuits attached to the ballasts little electronic cerebral cortexthe mother board. High frequency electronic ballasts for 2 or 1 cfl lamp. This extension of fluorescent lighting is a consequence of high luminous efficacy of the fluorescent sources compared to the incandescent ones. Pdf electronic ballast circuit configurations for fluorescent lamps. Electronic ballasts using the costsaving ir215x drivers figure 1.
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