Dual input AC and DC power supply having a programmable DC output utilizing a secondary buck converter

摘要

A dual input AC/DC power converter having dual inputs adapted to receive both an AC and DC input and provide a selectable DC voltage output and a second DC output. The dual input AC/DC power converter comprises a power converter circuit having an AC-to-DC converter, a DC-to-DC booster converter, a feedback circuit, a filter circuit and a DC-to-DC buck converter. Advantageously, the power converter resolves many of system management problems associated with carrying all of the different interface components necessary to power a wide variety of mobile products from either an AC or DC power supply. In addition, the power converter also advantageously includes dual output voltage terminals to allow for multiple mobile devices of varying power requirements to be powered simultaneously, by a single converter.