"Power conversion" can be described using a number of synonyms, each with their own connotations and nuances. Some alternative phrases include: - Energy transformation: This focuses on the process of converting one form of energy into another. - Voltage conversion: This specifically refers to the process of changing the level of electrical voltage. - Power exchange: This phrase suggests a give-and-take relationship between different sources and types of power. - Current conversion: Similar to voltage conversion, this refers to changing the level of electrical current. - Electro-mechanical conversion: This phrase emphasizes the use of mechanical devices in the process of converting power.