LED Drivers: the Role of the Rectifier on Flicker Immunity in ELV DC Environment
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24220%2F18%3A00006112" target="_blank" >RIV/46747885:24220/18:00006112 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1109/IAS.2018.8544611" target="_blank" >http://dx.doi.org/10.1109/IAS.2018.8544611</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/IAS.2018.8544611" target="_blank" >10.1109/IAS.2018.8544611</a>
Alternative languages
Result language
angličtina
Original language name
LED Drivers: the Role of the Rectifier on Flicker Immunity in ELV DC Environment
Original language description
Within dc operated networks, the ac-dc conversion stage in various appliances is not needed anymore and may be excluded from the design, thus increasing overall efficiency. Previous research showed that removing the diode bridge rectifier from the LED driver design can sometimes worsen and sometimes enhance the overall immunity of the LED lamp to supply voltage distortion in terms of produced luminous flicker (flicker immunity). This paper aims to explain this behavior by performing simulations of the analyzed drivers. It is found that: firstly, the voltage reference inside the driver integrated circuit is not affected by the voltage perturbations; secondly, the removal of the rectifier will not worsen the flicker immunity if the driver is properly loaded and the common mode rejection ratio is not too high in case high side current sensing is used; thirdly, the size of the smoothing capacitor does not affect the flicker immunity when dc supply is used.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
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Continuities
R - Projekt Ramcoveho programu EK
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
2018 IEEE Industry Applications Society Annual Meeting
ISBN
978-153864536-9
ISSN
0197-2618
e-ISSN
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Number of pages
6
Pages from-to
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Publisher name
IEEE
Place of publication
Portland, Oregon, USA
Event location
Portland, Oregon, USA
Event date
Jan 1, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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