Xantrex Truecharge 20+ Amp Owner's Manual - How Truecharge+ Works

Introduction

1–6

How Truecharge+ Works

Truecharge+ changes the alternating current (AC) supply from the utility 

to the controlled low-voltage, direct current (DC) required to charge the 

battery by using high-frequency, switched-mode power conversion 

circuits. The high-frequency power conversion method is similar to that 

used in power supplies for computers and other electronic equipment. It 

results in a significantly smaller and lighter charger than other power 

conversion methods allow.

The controlled DC output is fed to three isolations diodes, one for each 

battery bank. These diodes isolate the batteries from each other and 

prevent current flow from one battery to the others.