Academic Journal
Dynamic Output Resistance Optimization for Duty-cycle Control in Hybrid Capacitive LED Drivers
| العنوان: | Dynamic Output Resistance Optimization for Duty-cycle Control in Hybrid Capacitive LED Drivers |
|---|---|
| المؤلفون: | Castellanos, Juan C., Turhan, Mert, Cantatore, Eugenio |
| المصدر: | Castellanos , J C , Turhan , M & Cantatore , E 2018 , Dynamic Output Resistance Optimization for Duty-cycle Control in Hybrid Capacitive LED Drivers . in 2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018 - Proceedings . , 8351545 , Institute of Electrical and Electronics Engineers , 2018 IEEE International Symposium on Circuits and Systems (ISCAS 2018) , Florence , Italy , 27/05/18 . https://doi.org/10.1109/ISCAS.2018.8351545 |
| بيانات النشر: | Institute of Electrical and Electronics Engineers |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Hybrid Switched Capacitor Converter, Integrated DC-DC converter, LED Driver |
| الوصف: | This paper proposes a technique to optimize dynamically the efficiency of hybrid switched capacitor converters, while changing their output voltage/current. Pulse width modulation can be used to change the output current in LED drivers based on hybrid converters. However, changes in duty-cycle cause a reduction in efficiency due to the increasing output resistance of the associated switched capacitor converter. The proposed solution re-configures dynamically the ratio among the flying capacitors and the size of the switches in the power train to minimize the output resistance in different duty-cycle ranges. Transistor level simulations, using 180nm CMOS technology, show the benefits of this technique in a 3:1 Dickson step-down hybrid capacitive LED driver using three duty-cycle optimization regions. A better efficiency and flatter output resistance over a variable conversion ratio was achieved with up to 8% efficiency improvement in this case study, without increasing the area occupied by power switches and flying capacitors. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| ردمك: | 978-1-5386-4881-0 1-5386-4881-4 |
| Relation: | urn:ISBN:9781538648810 |
| DOI: | 10.1109/ISCAS.2018.8351545 |
| الاتاحة: | https://research.tue.nl/en/publications/5cdd688d-78c6-4d0e-81be-e7269bac7722 https://doi.org/10.1109/ISCAS.2018.8351545 http://www.scopus.com/inward/record.url?scp=85057079852&partnerID=8YFLogxK |
| Rights: | info:eu-repo/semantics/closedAccess |
| رقم الانضمام: | edsbas.D0980225 |
| قاعدة البيانات: | BASE |
| ResultId |
1 |
|---|---|
| Header |
edsbas BASE edsbas.D0980225 812 3 Academic Journal academicJournal 811.885437011719 |
| PLink |
https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edsbas&AN=edsbas.D0980225&custid=s6537998&authtype=sso |
| FullText |
Array
(
[Availability] => 0
)
Array ( [0] => Array ( [Url] => https://research.tue.nl/en/publications/5cdd688d-78c6-4d0e-81be-e7269bac7722# [Name] => EDS - BASE [Category] => fullText [Text] => View record in BASE [MouseOverText] => View record in BASE ) ) |
| Items |
Array
(
[Name] => Title
[Label] => Title
[Group] => Ti
[Data] => Dynamic Output Resistance Optimization for Duty-cycle Control in Hybrid Capacitive LED Drivers
)
Array ( [Name] => Author [Label] => Authors [Group] => Au [Data] => <searchLink fieldCode="AR" term="%22Castellanos%2C+Juan+C%2E%22">Castellanos, Juan C.</searchLink><br /><searchLink fieldCode="AR" term="%22Turhan%2C+Mert%22">Turhan, Mert</searchLink><br /><searchLink fieldCode="AR" term="%22Cantatore%2C+Eugenio%22">Cantatore, Eugenio</searchLink> ) Array ( [Name] => TitleSource [Label] => Source [Group] => Src [Data] => Castellanos , J C , Turhan , M & Cantatore , E 2018 , Dynamic Output Resistance Optimization for Duty-cycle Control in Hybrid Capacitive LED Drivers . in 2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018 - Proceedings . , 8351545 , Institute of Electrical and Electronics Engineers , 2018 IEEE International Symposium on Circuits and Systems (ISCAS 2018) , Florence , Italy , 27/05/18 . https://doi.org/10.1109/ISCAS.2018.8351545 ) Array ( [Name] => Publisher [Label] => Publisher Information [Group] => PubInfo [Data] => Institute of Electrical and Electronics Engineers ) Array ( [Name] => DatePubCY [Label] => Publication Year [Group] => Date [Data] => 2018 ) Array ( [Name] => Subject [Label] => Subject Terms [Group] => Su [Data] => <searchLink fieldCode="DE" term="%22Hybrid+Switched+Capacitor+Converter%22">Hybrid Switched Capacitor Converter</searchLink><br /><searchLink fieldCode="DE" term="%22Integrated+DC-DC+converter%22">Integrated DC-DC converter</searchLink><br /><searchLink fieldCode="DE" term="%22LED+Driver%22">LED Driver</searchLink> ) Array ( [Name] => Abstract [Label] => Description [Group] => Ab [Data] => This paper proposes a technique to optimize dynamically the efficiency of hybrid switched capacitor converters, while changing their output voltage/current. Pulse width modulation can be used to change the output current in LED drivers based on hybrid converters. However, changes in duty-cycle cause a reduction in efficiency due to the increasing output resistance of the associated switched capacitor converter. The proposed solution re-configures dynamically the ratio among the flying capacitors and the size of the switches in the power train to minimize the output resistance in different duty-cycle ranges. Transistor level simulations, using 180nm CMOS technology, show the benefits of this technique in a 3:1 Dickson step-down hybrid capacitive LED driver using three duty-cycle optimization regions. A better efficiency and flatter output resistance over a variable conversion ratio was achieved with up to 8% efficiency improvement in this case study, without increasing the area occupied by power switches and flying capacitors. ) Array ( [Name] => TypeDocument [Label] => Document Type [Group] => TypDoc [Data] => article in journal/newspaper ) Array ( [Name] => Language [Label] => Language [Group] => Lang [Data] => English ) Array ( [Name] => ISBN [Label] => ISBN [Group] => ISBN [Data] => 978-1-5386-4881-0<br />1-5386-4881-4 ) Array ( [Name] => NoteTitleSource [Label] => Relation [Group] => SrcInfo [Data] => urn:ISBN:9781538648810 ) Array ( [Name] => DOI [Label] => DOI [Group] => ID [Data] => 10.1109/ISCAS.2018.8351545 ) Array ( [Name] => URL [Label] => Availability [Group] => URL [Data] => https://research.tue.nl/en/publications/5cdd688d-78c6-4d0e-81be-e7269bac7722<br />https://doi.org/10.1109/ISCAS.2018.8351545<br />http://www.scopus.com/inward/record.url?scp=85057079852&partnerID=8YFLogxK ) Array ( [Name] => Copyright [Label] => Rights [Group] => Cpyrght [Data] => info:eu-repo/semantics/closedAccess ) Array ( [Name] => AN [Label] => Accession Number [Group] => ID [Data] => edsbas.D0980225 ) |
| RecordInfo |
Array
(
[BibEntity] => Array
(
[Identifiers] => Array
(
[0] => Array
(
[Type] => doi
[Value] => 10.1109/ISCAS.2018.8351545
)
)
[Languages] => Array
(
[0] => Array
(
[Text] => English
)
)
[Subjects] => Array
(
[0] => Array
(
[SubjectFull] => Hybrid Switched Capacitor Converter
[Type] => general
)
[1] => Array
(
[SubjectFull] => Integrated DC-DC converter
[Type] => general
)
[2] => Array
(
[SubjectFull] => LED Driver
[Type] => general
)
)
[Titles] => Array
(
[0] => Array
(
[TitleFull] => Dynamic Output Resistance Optimization for Duty-cycle Control in Hybrid Capacitive LED Drivers
[Type] => main
)
)
)
[BibRelationships] => Array
(
[HasContributorRelationships] => Array
(
[0] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Castellanos, Juan C.
)
)
)
[1] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Turhan, Mert
)
)
)
[2] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Cantatore, Eugenio
)
)
)
)
[IsPartOfRelationships] => Array
(
[0] => Array
(
[BibEntity] => Array
(
[Dates] => Array
(
[0] => Array
(
[D] => 01
[M] => 01
[Type] => published
[Y] => 2018
)
)
[Identifiers] => Array
(
[0] => Array
(
[Type] => isbn-print
[Value] => 9781538648810
)
[1] => Array
(
[Type] => isbn-print
[Value] => 1538648814
)
[2] => Array
(
[Type] => issn-locals
[Value] => edsbas
)
)
[Titles] => Array
(
[0] => Array
(
[TitleFull] => Castellanos , J C , Turhan , M & Cantatore , E 2018 , Dynamic Output Resistance Optimization for Duty-cycle Control in Hybrid Capacitive LED Drivers . in 2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018 - Proceedings . , 8351545 , Institute of Electrical and Electronics Engineers , 2018 IEEE International Symposium on Circuits and Systems (ISCAS 2018) , Florence , Italy , 27/05/18 . https://doi.org/10.1109/ISCAS.2018.8351545
[Type] => main
)
)
)
)
)
)
)
|
| IllustrationInfo |