High efficiency line VFI UPS invention

Abstract

Examples of the disclosure include a power system comprising a first output configured to be coupled to a load, a second output configured to be coupled to the load, a first input configured to be coupled to a power source, a second input configured to be coupled to the power source, a switch configured to switchably couple the second input to the second output, a series power injector coupled to a capacitor, the capacitor being coupled in series with the second output, and at least one controller configured to control the switch to couple the second input to the second output, and disable, based on controlling the switch to couple the second input to the second output, an inverter output power to the load.

CPC Classifications