Electronic Ballasts

Alonso, J.M.

doi:10.1016/b978-0-12-382036-5.00022-7

Cited by 4 publications

(6 citation statements)

References 22 publications

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“…This electrical characteristics and the suitable driving frequency at the rated lamp power are necessary to estimate the design ballast parameters. 19 2.1. Determination of eigenfrequencies and 'quiet window' The cylindrical arc tube of an HPSV lamp is characterized by longer length and smaller diameter.…”

Section: High-frequency Dimmable E-ballastmentioning

confidence: 99%

A design methodology for acoustic resonance-free, high-frequency, dimmable electronic ballast for high-pressure sodium-vapour lamps

Bakshi¹,

Roy

2019

Lighting Research & Technology

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This paper presents a methodology to design acoustic resonance-free, high-frequency, dimmable electronic ballasts for high-pressure sodium vapour (HPSV) lamps having a range of rated wattage (70–400 W). After estimation of the ‘quiet window’ of an HPSV lamp, the proposed iterative algorithm is able to determine the acoustic resonance-free driving frequencies of a design ballast corresponding to 50%–100% power level. On the other hand, a developed wattage and voltage independent HPSV lamp model facilitates finding the required electrical characteristics of HPSV lamps without performing laboratory experimentation. Using the estimated driving frequencies of a design ballast and the synthesized electrical characteristics of the lamp, the design circuit parameters of an electronic ballast are determined. Performance evaluation of the designed ballasts, carried out on the Matlab–Simulink platform, indicates several important attributes, viz. higher power control accuracy (deviation ≤3.69%), near-unity lamp power factor (≥0.98), lower lamp current crest factor (<1.7) and lower lamp current total harmonic distortion (≤12.63%). Results establish the effectiveness of the proposed design methodology to design lightweight and compact electronic ballasts for HPSV lamps with less effort than conventional design practice.

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Section: High-frequency Dimmable E-ballastmentioning

confidence: 99%

A design methodology for acoustic resonance-free, high-frequency, dimmable electronic ballast for high-pressure sodium-vapour lamps

Bakshi¹,

Roy

2019

Lighting Research & Technology

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“…[7] , [8] , [9] Ballast elektronik adalah konverter elektronika daya yang fungsinya untuk menyuplai discharge lamp. [10] , [11] , [12] Pada dasarnya, discharge lamp terdiri dari tabung discharge, didalamnya terdapat energi listrik yang diubah menjadi radiasi elektromagnetik. Setelah lampu dinyalakan, tabrakan antara elektron bebas dan atom menghasilkan panas dan suhu yang akan meningkat hingga mencapai kondisi operasi normal.…”

Section: Pendahuluanunclassified

Analisa Gangguan Konduksi pada Terminal Utama Lampu Hemat Energi

Wirapraja¹,

Wulandari²

2017

Jur. Tek. Pros. & Inov. Ind.

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Lampu hemat energi (LHE) tidak dapat dipisahkan dari kebutuhan masyarakat saat ini. Lampu hemat energi mempunyai beberapa kelebihan yaitu cahaya yang terang dan konsumsi energi yang rendah. Lampu hemat energi juga memiliki dampak negatif, salah satunya adalah medan magnet yang dihasilkan oleh komponen pasif yang terdapat pada ballast elektronik. Penelitian ini secara khusus menganalisa emisi konduksi yang dihasilkan oleh lampu hemat energi. Penelitian ini menggunakan dua kelompok lampu hemat energi yaitu LHE dengan harga ≤ Rp10.000,-dan > Rp10.000,-. Tujuan yang ingin dicapai pada penelitian ini adalah mengetahui emisi konduksi lampu hemat energi yang beredar di Indonesia berdasarkan harganya. Metoda pengujian mengacu pada CISPR 15 yaitu mains terminal disturbance voltage. Pada LHE dengan harga ≤ Rp10.000, semua lampu memiliki nilai quasipeak yang melebihi batas limit yang digunakan. 64% sampel yang diuji, memiliki nilaiquasipeakyang melebihi batas limit yang ada pada CISPR 15.

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“…Series-parallel resonant inverter (SPRI) topology is the most widely used configuration for fluorescent lamps’ e-ballast. 30,31 This topology, depicted in Figure 13, has two inverter switches S1 and S2 in a half-bridge arrangement. There are two load branches of the ballast: one series branch consists of an inductor ( L B ) and series capacitor ( C S ) and one shunt branch across the lamp with a small starting capacitor ( C P ).…”

Section: Design Of a Frequency Dimmable Electronic Ballastmentioning

confidence: 99%

“…Assuming the switching frequency to be same as the natural frequency of the ballast tank circuit, the ballast components are calculated by the following equations 31 …”

Section: Computation Of Ballast Elements (Lb Cs and Cp)mentioning

confidence: 99%

“…To ensure zero voltage switching (ZVS) of the inverter switches, the switching frequency is kept nearly equal to the natural frequency of the resonating tank circuit. With this consideration the ballast impedance ( Z B ) is computed by the following equation 31 α is selected as 0.95 to minimise the size of the ballast inductor. Putting I lamp = 0.2 A, the ballast impedance is computed as 679.7 Ω for 9 W lamp.…”

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confidence: 99%

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Wattage-independent dynamic conductance model of compact fluorescent lamps: Validation and application in high-frequency operation

Bakshi¹,

Roy

2017

Lighting Research & Technology

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A wattage-independent (7–18 W) compact fluorescent lamp (CFL) model has been developed in Matlab-Simulink and validated in low-frequency (50 Hz) operation in our earlier work. 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). Simulation results have shown a maximum 6.4% deviation compared to the measured data. Thereafter, the developed model is applied to obtain the arc resistance versus power and power versus frequency characteristics of CFLs required to design dimmable e-ballasts. An algorithm is developed to compute design parameters of a dimmable e-ballast based on voltage-fed series-parallel resonant inverter topology. The electrical performance of the designed e-ballast is simulated at three different power levels (100%, 75% and 50%) using Matlab-Simulink.

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Electronic Ballasts

Cited by 4 publications

References 22 publications

A design methodology for acoustic resonance-free, high-frequency, dimmable electronic ballast for high-pressure sodium-vapour lamps

A design methodology for acoustic resonance-free, high-frequency, dimmable electronic ballast for high-pressure sodium-vapour lamps

Analisa Gangguan Konduksi pada Terminal Utama Lampu Hemat Energi

Wattage-independent dynamic conductance model of compact fluorescent lamps: Validation and application in high-frequency operation

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