High precision automatic voltage regulator using the series transformer

This paper presents the design and analysis of a PWM inverter type automatic voltage regulator (A.V.R). The proposed A.V.R consists of a DC/AC inverter with reversible voltage control and a transformer for voltage compensation. The designed A.V.R can be used to deal with both directions of voltage regulation with high efficiency and reliability. This A.V.R has the function as the custom-power, which make the performance of the power supply in high level. Besides, it has merits of a higher switching efficiency, a simple circuit structure and a simple control algorithm.