A high-frequency electronic ballast for HID lamps based on a /spl lambda//4-long distributed constant line

Ohguchi, Hideki; Ohsato, M.H.; Shimizu, Toshihisa; Kimura, G.; Takagi, Hiroyuki

doi:10.1109/63.728329

Cited by 28 publications

(3 citation statements)

References 8 publications

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“…After the discharge, the lamp must be operated with AC current to expand their durability and protect them from being black. In addition, because HID lamp shows negative resistance characteristics in the operating region with characteristic of changing its resistance over time, the lamp driver must ensure stable operation of the lamp [2]. Therefore, a HID lamp driver needs to include a DC-AC converter to convert low DC voltage to high AC voltage and an igniter to output high DC voltage.…”

Section: Introductionmentioning

confidence: 99%

Simple Digital D1S Lamp System with a Power Structure of Flyback Converter and Full-Bridge Inverter

Jeong¹

2016

IJCA

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Section: Introductionmentioning

confidence: 99%

Simple Digital D1S Lamp System with a Power Structure of Flyback Converter and Full-Bridge Inverter

Jeong¹

2016

IJCA

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“…The immittance conversion characteristics (ICC) of a quarter-wave distributed constant line has been explored in the past for lamp ballasts [7], induction heating [8], and corona and plasma discharge applications [9]- [11] operating in the megahertz-range. Since the length of the distributed constant line becomes prohibitively long for power converters operating in kilohertz-range, some lumped-element IC topologies based on transmission line approximation, emulated using discrete inductors and capacitors, have been studied and reported [6].…”

Section: Introductionmentioning

confidence: 99%

Approximate Equivalent-Circuit Modeling and Analysis of Type-II Resonant Immittance Converters

Borage¹,

Nagesh²,

Bhatia³

et al. 2012

Journal of Power Electronics

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Resonant immittance converter (RIC) topologies can transform a current source into a voltage source (Type-I RICs) and vice versa (Type-II RICs), thereby making them suitable for many power electronics applications. RICs are operated at a fixed frequency where the resonant immittance network (RIN) exhibits immittance conversion characteristics. It is observed that the low-frequency response of Type-II RINs is relatively flat and that the state variables associated with Type-II RINs affect the response only at the high frequencies in the vicinity of the switching frequency. The overall response of a Type-II RIC is thus dominated by the filter response, which is particularly important for the controller design. Therefore, an approximate equivalent circuit model and a small-signal model of Type-II RICs are proposed in this paper, neglecting the high-frequency response of Type-II RINs. While the proposed models greatly simplify and speed-up the analysis, it adequately predicts the open-loop transient and small-signal ac behavior of Type-II RICs. The validity of the proposed models is confirmed by comparisons of their results with those obtained from a cycle-by-cycle simulation and with an experimental prototype.

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“…Therefore, HID lamps have been widely used for various indoor or outdoor lighting applications such as spotlights inside shopping stores, headlights of cars, LCD projectors, and small power HID lamps [1][2][3][4]. However, among these HID lamps, specially, a metal halide discharge lamp has many advantages such that consumption power is 40 % less, but light quantity and durability is three times and is four times more, respectively, compared to conventional halogen lamps, and size of light emission is small.…”

Section: Introductionmentioning

confidence: 99%

Implementation and Control of High Performance Car-Headlamp Driver

Jeong¹,

Kim²

2016

Advanced Science and Technology Letters

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Abstract. This paper presents implementation and control of high performance car-headlamp driver. The lamp used in the proposed system is a high intensity discharge lamp for cars. The proposed driver utilizes a power structure of flyback converter and full-bridge inverter. Because a low-cost 8-bit micom is utilized as the controller, the driver is very simple. The flyback converter of the proposed driver supplies boost DC and high voltage for the lamp drive and ignition, respectively. When the operation of the proposed driver arrives in steady-state, the driver controls the lamp with AC current using the DC-AC inverter. In this paper, the operation principle of the proposed driver is described, briefly. It is shown through the experimental results that the proposed system has good performance for the high performance car-headlamp.

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A high-frequency electronic ballast for HID lamps based on a /spl lambda//4-long distributed constant line

Cited by 28 publications

References 8 publications

Simple Digital D1S Lamp System with a Power Structure of Flyback Converter and Full-Bridge Inverter

Simple Digital D1S Lamp System with a Power Structure of Flyback Converter and Full-Bridge Inverter

Approximate Equivalent-Circuit Modeling and Analysis of Type-II Resonant Immittance Converters

Implementation and Control of High Performance Car-Headlamp Driver

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