Superjunction devices tailored for Flyback applications
Designers are consistently challenged by the increasing demands for every new generation in the consumer sector. Among them are the underlying needs for lower temperature, improved form factors and increased efficiencies, along with significantly reduced system cost.
Infineon’s 700 V CoolMOSTM P7 is the first 700 V solution developed and produced on 300 mm for low power applications. It offers a price competitive solution for consumer applications such as flyback chargers and adapters in the power range from 10 W to 75 W. 700 V CoolMOSTM P7 is a tailored technology for flyback and DCM (discontinuous current mode) PFC applications and is not suitable for any half- or full-bridge topology.
This paper focuses on the highly popular flyback-based converters, with special emphasis on the role of MOSFETs within this topology. It will also illustrate the benefits of dedicated switching devices by benchmarking some real-world application examples and will give an overview of some of the latest devices on the market.
