A high-frequency half-bridge driving circuit topology for HID lamps

Pan, Yuzhuo; Lin, Jian; Su, Shanhe; Shih, T-M

doi:10.1177/1477153515575585

Cited by 3 publications

(5 citation statements)

References 26 publications

(21 reference statements)

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“…Figures 7 and 8 present the temporal evolution of the arc current, the arc voltage and the 577 nm line of mercury(measured by a CCD camera) 23,24 during the pulsed mode under different amplitude of pulses: 6 A and 9 A.…”

Section: Resultsmentioning

confidence: 99%

Assessment of the effect of a pulsed power supply on the HgTlI lamp

Chammam

Nsibi

Mrabet

et al. 2018

Lighting Research & Technology

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The objective of this work is to study the influence of a pulsed power supply on the energy efficiency of high-intensity discharge lamps in comparison with a pseudo-continuous ballast. The results presented in this paper concern the dynamic behaviour of discharges in mercury vapour doped with thallium iodide. The acquisition of the arc current, arc voltage and spectral radiation enables us to investigate the influence of the pulsed power supply on the electrical characteristics of the lamp such as the behaviour of the lamp conductance and spectral radiance. The analysis of the 577 nm mercury line’s response to the current pulse excitation allowed us to identify several phases. Good agreement has been found between simulation and experimental results.

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Section: Resultsmentioning

confidence: 99%

Assessment of the effect of a pulsed power supply on the HgTlI lamp

Chammam

Nsibi

Mrabet

et al. 2018

Lighting Research & Technology

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show abstract

“…Operation of the boost PFC must be in DCM to ensure minimized supply current harmonics and near-unity input power factor of the e-ballast. 7,18 Considering the boundary between discontinuous and continuous conduction modes, the sizes of the boost inductor, L boost (mH) and the boost capacitor, C boost (mF) are estimated from equations (18) and (19) 29,30 where Prated is the rated lamp power in Watts, fboost is the chosen switching frequency of the boost converter in kHz, ηi is the efficiency of the SPRI stage which typically lies in the range of 95%–100% and ΔVr is the maximum allowable ripple content of V o in volts (peak–peak).…”

Section: Design Algorithm For Ar-free Dimmable E-ballastmentioning

confidence: 99%

Section: Estimation Of Circuit Parametersmentioning

confidence: 99%

“…Conventionally, the dimming action is accomplished by switching frequency variation of the inverter of an e-ballast. 10–12,18 In spite of these earlier significant contributions in e-ballast design procedures, a few research gaps are identified in these works as mentioned below lack of a systematic and generalized methodology to determine AR-free driving frequencies of e-ballast for a wide dimming range; a single lamp wattage is taken into consideration; an ‘equivalent resistance’ of the HF inverter stage is considered instead of actual arc impedance of the lamp. Because of this approximation, complex equations need to be solved to estimate the ballast circuit parameters. …”

Section: Introductionmentioning

confidence: 99%

“…Conventionally, the dimming action is accomplished by switching frequency variation of the inverter of an e-ballast. [10][11][12]18 In spite of these earlier significant contributions in e-ballast design procedures, a few research gaps are identified in these works as mentioned below (i) lack of a systematic and generalized methodology to determine AR-free driving frequencies of e-ballast for a wide dimming range; (ii) a single lamp wattage is taken into consideration;…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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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A Generalized Dynamic Conductance Model for High Intensity Discharge Lamps and its Prospective Application to Design Dimmable Electronic Ballast

Bakshi

Roy

2021

L&E

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A generalized model for high intensity discharge (HID) lamp is developed based on the Francis-Damelincourt dynamic conductance model of electric discharge by replacing the model constants A, B, C, D with four experimentally determined coefficient functions of rated lamp power and root mean square supply voltage. Experimental validation of this model is done, which shows a maximum deviation of about 5 %. Moreover, sensitivity analysis for the model coefficients is also performed, results of which conform to the physical behaviour of high pressure sodium (HPS) and metal halide (MH) lamps. This model is capable to simulate electrical characteristics of HPS and MH lamps of wide range of commercially available rated power (70–400) W fed by a wide range of supply voltage (180–250) V, 50 Hz. As a prospective application, the model is applied to design dimmable low frequency square wave electronic ballast for HID lamps. A design algorithm is proposed for this purpose. Performance analysis of the designed ballast is conducted in Matlab-Simulink environment, which shows fairly good performance of the circuit in terms of dimming accuracy (maximum deviation 2.64 %), lamp power factor (≥ 0.993), and lamp current crest factor (equal to 1.0). The model can also be utilized for designing electronic ballasts of other topologies.

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A high-frequency half-bridge driving circuit topology for HID lamps

Cited by 3 publications

References 26 publications

Assessment of the effect of a pulsed power supply on the HgTlI lamp

Assessment of the effect of a pulsed power supply on the HgTlI lamp

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

A Generalized Dynamic Conductance Model for High Intensity Discharge Lamps and its Prospective Application to Design Dimmable Electronic Ballast

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