Zasilacz wysokonapiȩciowy lamp LED oparty na jednostopniowym przekształtniku typu boost ze sterowaniem histerezowym

Translated title of the contribution: High voltage led supply using a hysteretic controlled single stage boost converter

Antonio Leon-Masich, Valderrama Hugo, Maria Bosque Josep, Martinez Luis, Flores Freddy

Research output: Contribution to journalArticlepeer-review

Abstract

High voltage-gain transformerless single-stage boost converter requires extreme duty ratios. Hysteretic control can be a solution to achieve this goal, otherwise unaffordable with common PWM integrated circuits. With this technique voltage gains around 100, and duty cycles higher than 99% are feasible. As a possible application, a typical 50 W halogen-based car spot-light, is replaced by an array of 200-300 standard LED's in series consuming 8 -12 W. Although series connection simplifies current control and dimming, a high voltage current-source is required.

Translated title of the contributionHigh voltage led supply using a hysteretic controlled single stage boost converter
Original languageUndefined
Pages (from-to)26-30
Number of pages5
JournalPrzeglad Elektrotechniczny
Volume88
Issue number1 A
Publication statusPublished - 2012
Externally publishedYes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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