A Novel Constant-Frequency Quasi-Resonant Converter

IEEE Access

卷:6

Tianyu Zhu¹  Jianze Wang¹  Yanchao Ji¹  Yiqi Liu² 

[1] School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin, China;

[2] School of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin, China;

关键词: LLC converter;    constant Frequency;    quasi-Resonant;    SCC;    ZVS;    design procedure;   

DOI  :  10.1109/ACCESS.2018.2854846

来源: DOAJ

【 摘 要 】

In this paper, a new constant-frequency LL switch-capacitor (LLSC) quasi-resonant converter is proposed. Compared with the traditional frequency voltage regulation instruments, the proposed converter can effectively reduce the volume of magnetic components. A switch-control capacitor is used in the LLSC converter and adjusts the capacitor parallel anti-series MOSFET turn-on delay to change the equivalent capacitance. At constant frequency, the output voltage is adjusted by impedance adjustment. The LLSC converter can achieve the primary side MOSFET zero-voltage switching. A new design procedure is proposed for the LLSC converter. The proposed converter is experimentally by experimental results using 80-120 V and 250-W output prototype.

【 授权许可】

Unknown