單相UPS的雙半波PFC電路分析

摘要：目前，單相UPS的逆變電路主要采用半橋結(jié)構(gòu)。但普通全橋型PFC電路難以為其提供電源，而雙半波PFC電路適合為半橋逆變電路提供電源。針對單相UPS的一種雙半波PFC電路，分別使用UCC28180D和TMS320F28027作為控制芯片，進(jìn)行了控制系統(tǒng)設(shè)計(jì)。結(jié)果表明，TMS320F28027更適合雙半波PFC控制系統(tǒng)的設(shè)計(jì)，為半橋逆變電路的前級PFC設(shè)計(jì)提供了一種思路。 敘詞：UPS 雙半波PFC UCC28180D TMS320F28027 Abstract： At present, the half-bridge inverter circuit is used in single-phase UPS. It is difficult to provide appropriate power supply for the half-bridge inverter using ordinary full-bridge PFC, but dual half-wave PFC could do it easily. The control system respectively based on UCC28180D and TMS320F28027 was designed for a dual half-wave PFC in single-phase UPS. The results show that TMS320F28027 is more suitable for dual half-wave PFC control system design. And this paper could help designing of PFC for the half-bridge inverter. Keyword：UPS, Dual half-wave PFC, UCC28180D, TMS320F28027