ZHU Caiqing, CAO Biao, ZHONG Lei, et al. Research on bridgeless PFC converter based on DSP. [J]. 50(1):63-66(2020)
DOI:
ZHU Caiqing, CAO Biao, ZHONG Lei, et al. Research on bridgeless PFC converter based on DSP. [J]. 50(1):63-66(2020) DOI: 10.7512/j.issn.1001-2303.2020.01.10.
Aiming at the harmonic pollution caused by the traditional switching power supply bridge rectifier filter,the high efficiency bridgeless power factor converter has become a research focus in academia and industry at home and abroad.Based on the dual-diode bridgeless PFC(2nd DBPFC)converter,the converter system design and components selection are completed,its working mode is analyzed in detail,and the 2nd DBPFC converter control system is completed combining the average current control strategy. Finally,based on the PIC32MK1024 MCF064 chip with DSP core,a 1 kW 2nd DBPFC converter was developed. The test results show that the converter has a power factor of 98.7% at 220 V input full load.
关键词
无桥功率因数变换器工作模态平均电流控制
Keywords
bridgeless PFC converterworking modeaverage current control