DC power supply for electronic equipment has voltage doubler circuit for storing battery energy in capacitor followed by voltage regulator

摘要

The DC power supply (1) has a lithium battery (3). A capacitor (5) is charged by the battery via a voltage doubler circuit (4), which is placed between the battery and the capacitor. A voltage regulator (6) is placed between the capacitor and the electronic equipment so as to supply it with energy stored in the capacitor when necessary.