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http://dx.doi.org/10.6113/TKPE.2016.21.2.102

High Frequency Dual Mode Control LLC Resonant Converter with Wide Input Voltage Range  

Joo, Hyung-Ik (Electronic Engineering, Kookmin University)
Yang, Jung-Woo (Electronic Engineering, Kookmin University)
Jo, Kang-Ta (Samsung Electro-Mechanics Co.,LTD.)
Han, Sang-Kyoo (Electronic Engineering, Kookmin University)
Sakong, Suk-Chin (Electronic Engineering, Kookmin University)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.21, no.2, 2016 , pp. 102-110 More about this Journal
Abstract
In this paper, a high-frequency dual mode control LLC resonant converter with wide input voltage range is proposed through zero voltage switching (ZVS) under the universal line input voltage and every load conditions. Conventional small power adapter driving should be satisfied with universal line input voltage because it has no power factor correction circuit regulation. The conventional LLC resonant converter for an adapter can reduce the size of transformer in terms of high-frequency driving and ZVS. However, this converter has a disadvantage in terms of design of resonant tank under various input voltages because the frequency modulation range is very wide to satisfy voltage conversion gain. Compared with the conventional one, the proposed LLC converter can be adapted to universal line input voltage and high-frequency driving because it is controlled by pulse width modulation and pulse frequency modulation with control voltage. The validity of the proposed LLC converter is proved through the 60 W prototype.
Keywords
LLC Resonant converter; High frequency; PWM; ZVS; Dual mode control;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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