Patent ID: 9583974
Date: 2017-02-28
CPC Classifications: H02J

Claim:
1. An uninterruptible power supply system for supplying electrical power to an electrical apparatus, the system comprising: an alternating current (AC) power source providing AC power; a direct current (DC) power source providing DC power; a power selector system having a power selector for selecting AC power or DC power for powering the electrical apparatus, the power selector system having a sensor for determining if AC power is acceptable for powering the electrical apparatus; wherein the power selector system receives the AC power and the DC power and delivers either AC power or DC power directly to the electrical apparatus through a single shared connection for either AC or DC power to the electrical apparatus without using separate AC and DC lines leading to the electrical apparatus; a power automation system for charging the DC power source; and a power management module for controlling the power selector system and the power automation system, wherein the power management module commands the power system to immediately switch to DC power for powering the electrical apparatus when the AC power is unacceptable; wherein DC power is provided directly to the electrical apparatus when AC power is unacceptable without converting the DC power.