Fundamental structures of switching-mode limit-cycle oscillators

The presently treated switching-mode resonant inverters are to a certain extent unique, since they can be regarded as being limit-cycle oscillators. Their feedback-property is due to the switching instances being determined by the invertor own output. Their nonlinearity is inevitable, since the size of the feedback signals is constant and determined externally. The work deals with relatively generalized structural features of such oscillators operating in one phase and also in three-phases. It is shown that such topological considerations lead to practical implications