## Abstract

A DC/AC inverter whose voltage is constructed from discrete low level DC sources to form a stepped sine-wave-like output is introduced. The criterion of optimal approximation of the stepped waveform to a sinewave was the minimum mean square error. The internal resistance of the generated source voltage is time varying since the total series resistance changes with the wave shape. When a constant resistive load is connected to such a load, the load voltage shape does not follow the source voltage and the optimal approximation to a sinewave of the two voltages will depend on two different switching policies: one adaptive to the source voltage and the other adaptive to the load voltage. The proposed inverter has superior properties characterized by its low distorion and high efficiency.

Original language | English |
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Pages (from-to) | 192-199 |

Number of pages | 8 |

Journal | IEEE Transactions on Industrial Electronics |

Volume | IECI-24 |

Issue number | 2 |

State | Published - 1977 |