Chapter 231

Micropower isolated flyback converter with input voltage range from 6V to 100V

Zhongming Ye

Abstract

A micropower isolated flyback converter with input voltage range from 6V to 100V is described.

Keywords

Flyback converter

LT8300

Introduction

Flyback converters are widely used in isolated DC/DC applications because of their relative simplicity and low cost compared to alternative isolated topologies. Even so, designing a traditional flyback is not easy—the transformer requires careful design, and loop compensation is complicated by the well known right-half plane (RHP) zero and the propagation delay of the optocoupler.

Linear Technology’s no-opto flyback converters, such as the LT3573, LT3574, LT3575, LT3511 and LT3512, ...

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