摘要 |
<p>The invention refers to a procedure for the conversion of electric energy, from direct to alternating, according to which the waveform of the AC voltage, with its applicable positive and negative half-cycles, is obtained taking the instantaneous values of the voltage amplitude to be obtained, by means of sequential sweeps of the junction or connection points in a plurality of DC supplies. More concretely, the sequential sweep of every two consecutive junction or connection points is made so that the connection in the second point starts before making the disconnection with the first, except in the changes of current reversal where a "zero" energy situation is established before making such a reverse.</p> |