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Analog Circuit Design Volume Three by John Hamburger, Bob Dobkin

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Chapter 242

Supercapacitors can replace a backup battery for power ride-through applications

Jim Drew

Abstract

The use of supercapacitors a a replacement for a backup battery for power ride-through applications is described.

Keywords

Power ride-through

supercapacitor

LTC3225 supercapacitor charger

Introduction

Supercapacitors (or ultracapacitors) are finding their way into an increasing number of applications for short-term energy storage and applications that require intermittent high energy pulses. One such application is a power ride-through circuit, in which a backup energy source cuts in and powers the load if the main power supply fails for a short time. This type of application has typically been dominated by batteries, but ...

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