O'Reilly logo

Analog Circuit Design Volume Three by John Hamburger, Bob Dobkin

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 239

Supercapacitor-based power backup system protects volatile data in handhelds when power is lost

Jim Drew

Abstract

A supercapacitor-based power backup system that protects volatile data in handhelds when power is lost is described.

Keywords

Supercapacitor

Supercapacitor charger

LTC3226

Introduction

Handheld electronic devices play a key role in our everyday lives. Because dependability is paramount, handhelds are carefully engineered with lightweight power sources for reliable use under normal conditions. But no amount of careful engineering can prevent the mistreatment they will undergo at the hands of humans. For example, what happens when a factory worker drops a bar code scanner, causing the battery to pop out? Such ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required