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A Novel Synchronization Technique for High Frequency Rectifier in Wireless Power Transfer
Yongbin Jiang,Min Wu,Zexian Zeng,Yonghui Liu,Xiufang Hu,Laili Wang,Yue Wang 전력전자학회 2019 ICPE(ISPE)논문집 Vol.2019 No.5
This paper presents a novel synchronization technique for high frequency rectifier in wireless power transfer (WPT). To overcome the drawbacks of traditional phase-locked method based on DSP controller in high frequency rectifier, a novel phase-locked loop combined with the chained trigger mode (PLL-CTM) is proposed. The reasons why the driver pulses lose have been disclosed in detail. Then, the problem of pulse losing can be solved based on PLL-CTM. Finally, a 500W WPT prototype is built to verify the validity of the proposed synchronization technique.