This paper discusses the soft switching circuit—Boost-ZVT converter, and studies the role of Boost-ZVT converter in the factor correction circuit(PFC). Distinguished from the past Boost converter, the Boost-ZVT converter implements the main switch of the soft turn-off, reducing switching losses and improving the system efficiency. At last, Matlab software is carried out the main circuit simulation. The simulation results show that Boost-ZVT circuit has a good effect in PFC circuit design, and has a wide application in practical circuit design.
Analysis of EMI Radiation Noise from a Novel Passive Energy Recovery type Soft Switching Circuit