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Journals / Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi / 2018 / Cilt: 24 Sayı: 5

Application of 24V/20A LLC resonant converter for OLED TVs

OLED TV’ler için 24V/20A LLC rezonanslı dönüştürücü uygulaması

Çağatay Özçelik, Atiye Hülya Obdan

Pages
837–845
Publication Date
2018-10-12
DOI
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Özet

Normal 0 false false false TR X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Normal Tablo"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri",sans-serif; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi; mso-ansi-language:TR;} Bu çalışmada, LLC topolojisi kullanılarak çift transformatör yapısı ile transformatörlerin primer tarafları seri sekonder tarafları paralel bağlı olacak şekilde rezonanslı dönüştürücü ele alınmıştır. Seri rezonans karakteristiği sayesinde güç Mosfet’leri sıfır gerilim altında iletime girmektedir, böylece yarı iletkenler üzerindeki kayıplar azalmıştır. Önerilen dönüştürücüde transformatörlerin primer sargıları birbirlerine seri bağlanmıştır, bu sayede çıkış tarafına akım dengeli bir şekilde sağlanmıştır. Sekonder tarafta transformatörlerin sargıları birbirlerine paralel bağlanmıştır böylece yük akımı eşit biçimde dağıtılmış aynı zamanda transformatörlerin sekonder sargılarının ve çıkış doğrultucu diyotlarının akım stresi azalmıştır. Bu çalışmada LLC rezonanslı dönüştürücünün çalışma prensibi ele alınmıştır ve OLED TV güç kaynakları için 24V/20A çıkışlı devrenin PSIM simülasyon modeli ve prototipi oluşturulmuştur.

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Cite This Article

Özçelik, Ç., Obdan, A. H. (2018). Application of 24V/20A LLC resonant converter for OLED TVs. Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi, Cilt: 24 Sayı: 5, 837–845. https://ajindex.com/articles/1058720

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