Acoustic-resonance-free electronic ballast for automotive HID lamps

2008 ◽  
Vol 44 (17) ◽  
pp. 1027 ◽  
Author(s):  
C.-A. Cheng ◽  
K.-J. Lin ◽  
Y.-M. Kao
Keyword(s):  
Acoustic Resonance ◽  
Electronic Ballast ◽  
Hid Lamps

Simulation And Development Of Electronic Ballast for High Pressure Discharge Lamps

2021 ◽  
pp. 86-92
Author(s):  
Vladimir G. Kulikov ◽  
Albert A. Ashryatov
Keyword(s):  
High Pressure ◽  
High Frequency ◽  
Acoustic Resonance ◽  
High Frequency Current ◽  
Electronic Ballast ◽  
Advantages And Disadvantages ◽  
Test Operation ◽  
Pressure Discharge ◽  
Frequency Current ◽  
High Pressure Discharge

The advantages and disadvantages of using electromagnetic ballasts for power supply of high pressuredischarge lamps (HPDL) are considered. The advantages of using electronic ballasts for supplying HPDL are shown. The analysis is fulfilled of the operation of the HPDL when powered by a high-frequency current, in particular, high-pressure sodium lamps (HPSL). It is indicated that when high-pressure discharge lamps are supplied with a high-frequency current, acoustic resonance may appear. The basic requirements to be met by electronic ballasts for HPSL have been determined. The topology of construction of electronic ballasts for supplying HPDL with a capacity of up to 1 kW has been selected. It has been established that half-bridge converters with inductive ballast and active power factor corrector (PFC) allow maintaining a stable power on the lamp while changing its parameters and efficiency. Mathematical modelling of the electronic ballast based on a half-bridge converter and an ignition device for the sodium discharge lamps DNaT type has been carried out. According to the proposed topology, the electronic ballast was developed for a DNaT 600 lamp powered from the 380 V network. Test operation of the lamps confirmed the reliability of the proposed electronic ballast topology.

Design of a two-stage low-frequency square-wave electronic ballast for HID lamps

2003 ◽  
Vol 39 (2) ◽  
pp. 424-430 ◽  
Author(s):  
Miaosen Shen ◽  
Zhaoming Qian ◽  
Fang Zheng Peng
Keyword(s):  
Low Frequency ◽  
Two Stage ◽  
Square Wave ◽  
Electronic Ballast ◽  
Hid Lamps

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

2019 ◽  
Vol 52 (4) ◽  
pp. 524-539
Author(s):  
B Gupta Bakshi ◽  
B Roy
Keyword(s):  
High Pressure ◽  
High Frequency ◽  
Design Methodology ◽  
Power Level ◽  
Harmonic Distortion ◽  
Acoustic Resonance ◽  
Electrical Characteristics ◽  
Electronic Ballast ◽  
Lamp Current ◽  
Sodium Vapour

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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