Abstract

The cyclically switching circuit, a boost-buck converter in optimal topology, without load capacitor, is analysed by using the tool familiar to engineers, the Laplace transform. The key to this approach is the use of the equations of the recently defined circuit element, the aiternor. A modified nodal equations system, describing the global dynamic behaviour of the converter, is obtained. This permits a qualitative study of the switching power stage. The time-domain solution of the nodal system, together with boundary conditions in the circuit switching operation, is used for the computation of the accurate transient and steady-state response of the converter operated in the continuous conduction mode.

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