This book is a comprehensive single-source on the design of chip-scale high-voltage power supplies for low-power DC-link and grid applications. It is written in handbook style with systematic guidelines and includes implementation examples. The authors cover the full range, from technology fundamentals to circuit implementation details. The book includes guidelines for the application-specific selection of the converter topology, design guidelines for the inductive components, and a detailed description of low-power optimized control approaches and subcircuits. The authors also include guidelines for the selection and design of high-voltage on-chip power switches and for the reduction of parasitic effects such as capacitive losses.