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A New Dual Output LLC Resonant DC/DC Converter using Single Control IC  

Yoon, Jong-Kyu (국민대 전자공학과)
Cho, Sang-Ho (국민대 전자공학과)
Roh, Chung-Wook (국민대 전자정보통신공학부)
Hong, Sung-Soo (국민대 전자정보통신공학부)
Kim, Jong-Hae (삼성전기(주) P&M 사업부)
Lee, Hyo-Bum (삼성전기(주) P&M 사업부)
Han, Sang-Kyu (국민대 전자정보통신공학부)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.13, no.6, 2008 , pp. 453-460 More about this Journal
Abstract
This paper proposes a new multi-output LLC resonant converter by using single control IC, which has the tight-regulated dual output voltage without additional power devices and controller. The proposed converter has master and slave outputs, of which regulations are achieved by the PWM(pulse width modulation) and PFM(pulse frequency modulation), respectively. Different from the conventional dual-output LLC resonant converter, the proposed converter has no additional post-regulators like a boost converter. Therefore, it features a low cost, small size, and high efficiency. To confirm the validity and prove the superiority of proposed converter, simulated and experimental results on a 50" FHD PDP power set prototype are presented.
Keywords
Medium power system; LLC resonant converter; Dual-output; Single Control IC; PDP TV; SMPS;
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  • Reference
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