OPTIMIZED UPS POWER ARCHITECTURE FOR POWER AUGMENTATION TYPE OF APPLICATIONS

According to at least one aspect of the disclosure, a uninterruptible power supply includes a first input configured to be coupled to, and receive main power from, a main power source, a second input configured to be coupled to, and receive backup power from, a backup power source, an output configured to be coupled to at least one load, at least one current sensor, a four-quadrant inverter coupled to the first input, the second input, and the output, and at least one controller configured to control the four-quadrant inverter to provide power derived from the first input to the second input to charge the backup power source, and provide power derived from the second input to the output to supplement the main power.