| 摘要 |
PURPOSE:To efficiently convert by a simple circuit into an AC voltage near a sinusoidal wave by suitably selecting, converting and supplying the voltages of a plurality of battery units. CONSTITUTION:DC powers which are obtained from battery units 1A-1C such as solar battery or fuel battery are converted by switching elements 3-6 such as thyristors into AC powers, and supplied to a load 8. In this case, a plurality of battery units 1A-1C are employed, the DC voltage is applied to an inverter device through a switching circuit 2, this switching circuit 2 is switched and connected at the time interval of 1/6 of the half wavelength of a sinusoidal wave obtained as the AC output by a control circuit 2a by sequentially selecting the output terminal 2b from an input terminal 2e to 2d, 2c and from 2c to 2d, 2e. This switching circuit 2 efficiently converts to the AC voltage near the sinusoidal wave. |
