Investigation of the effects of different operating regions of ZVS LLC resonant converter on the converter performance

Küçük Resim Yok

Tarih

2024

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Gazi Univ

Erişim Hakkı

info:eu-repo/semantics/openAccess

Özet

FM controlled ZVS LLC resonant converter operates with low switching losses at high switching frequencies for a wide input voltage range. To obtain a constant output voltage against varying input voltage and load, the DC voltage gain of the converter, hence its operating intervals, needs to be changed. In different operating intervals, many operating parameters change besides the DC voltage gain of the converter. In this study, ZVS operating intervals of the converter are compared in terms of efficiency, switch stresses, and soft switching for constant output voltage against varying input voltage and load. The prototype circuit of the converter with the input voltage range of 80-120 V, nominal input voltage of 100 V, and output voltage of 8 V is established. The measurement results obtained from the prototype circuit for much different input voltage and load values are presented comparatively. The effect of different ZVS operating intervals on the operating parameters of the converter is revealed in many ways. Moreover, it is observed that the operating performance of the converter around series resonance frequency is better than the operating frequencies far from this frequency value.

Açıklama

Anahtar Kelimeler

LLC resonant converter, ZVS, FM control, soft switching

Kaynak

Journal of Polytechnic-Politeknik Dergisi

WoS Q Değeri

N/A

Scopus Q Değeri

Cilt

27

Sayı

1

Künye