A power factor correction(PFC)circuit with a negative voltage shutdown function and an output of 400 V,250 W and efficiency of about 97％is designed,By using the characteristics of silicon carbide field-effect tubes(SiC MOSFET),and the MC33262 power factor control chip.The circuit reduces the turn-off lossse of the MOS tube,improves the power factor of the power supply,Suppresses voltage and current harmonic coefficients,to improve power utilization and stability.
SiCnegative voltage shutdown circuitPFCpower factor
万方数据
维普
