Analog Circuit Design Volume 2

Chapter 40

Current sense circuit collection

Making sense of current

Tim Regan, Jon Munson, Greg Zimmer and Michael Stokowski

Introduction

Sensing and/or controlling current flow is a fundamental requirement in many electronics systems, and the techniques to do so are as diverse as the applications themselves. This Application Note compiles solutions to current sensing problems and organizes the solutions by general application type. These circuits have been culled from a variety of Linear Technology documents.

Circuits organized by general application

Each chapter collects together applications that tend to solve a similar general problem, such as high side current sensing, or negative supply sensing. The chapters are titled accordingly. In this way, ...