II. THE PROPOSED CONVERTER
The proposed converter is presented in Fig. 1. It is
composed by a single-phase full-wave rectifier with output
capacitor and by a DC-DC resonant half-bridge converter.
In the proposed converter, the high voltage stage is
obtained by the association of five transformers, with
primary sides connected in parallel and the secondary sides
connected to voltage-double rectifiers, which are connected
in series.
The parallel connections of primary sides provide the
sharing of the output power among the transformers. The
series connections of the voltage-double rectifiers provide
the sharing of the output voltage among the secondary-side
components.
This concept ensures modular design, where the output
voltage requirement can be meet by adding or removing the
block formed by the voltage transformer and the voltagedouble rectifier.
In Fig. 1, the inductance Lr represents the resonant
inductor, the capacitance Cp represents the resonant
capacitor, the capacitance Cs represents the DC current
blocking capacitor and the capacitance Cb represents the
voltage clamping capacitor.