This book provides a comprehensive review and classification for dual active bridge DC-DC converters. Based on the unified topology architecture of the dual active bridge DC-DC converters, the topologies derivation law is studied and new converter topologies are deducted correspondingly. Several novel converters are provided to illustrate different topology modification methods, including modified IO types, modified active bridges, modified transformers, adding auxiliary high-frequency net...

This book starts with detailed community-based poverty-alleviation cases and focuses on several important aspects in this field to demonstrate the intervention methods, theoretical paradigms, and intervention models of poverty-alleviation social work. Based on the introduction to the characteristics, theoretical foundation, and practical model of community-based poverty-alleviation social work, this book elaborates the specific operation processes from the perspectives of community interve...