"Power conversion loop" is a commonly used phrase in the field of electrical engineering. However, there are several synonyms that can be used to describe this process. One of the most commonly used is "power electronics", which refers to the use of electronic devices to control and convert electrical power. Another term is "power management", which refers to the process of managing, regulating, and controlling the flow of power in a system. Other synonyms include "energy conversion", "power conditioning", and "power flow control". These terms are all used to describe the process of controlling and converting electrical power in various systems and applications.