MINIATURIZED AC/DC POWER SUPPLY AND BATTERY CHARGER

摘要

A transformer connected to a power source, which consists of a primary coil, a secondary coil and a magnetic core, the secondary coil being configured to provide a regulated DC output voltage and/or current. The primary coil contains two portions, one portion being used to operate the transformer as a low voltage input converter and both portions being used when the transformer is used as a high voltage input converter.