Abstract
A single phase controlling method including: inputting a DC current to a DC terminal of a three phase inverting device; performing a de-coupling procedure to calculate a switching duty ratio of a three phase switch by calculating an average voltage between a ground of the DC terminal and a ground of a AC terminal of a three phase inverting device; performing a division procedure to obtain a single phase electricity output in accordance with an excitation status and a demagnetization status of a current variation; performing a summation procedure to integrate the current variation of the excitation status and the demagnetization status to obtain a switching duty ratio of the three phase switch in a next period.