Abstract—This paper presents a multioutput converter using
an asymmetrical pulsewidth modulation half-bridge flyback
topology employing a parallel–series-connected transformer.
Compared to conventional multioutput topologies, the proposed
converter operates using a single-output controller without the
need for additional control loops and devices. In order to solve
the cross-regulation problem, the output stages of the proposed
converter are stacked in series. In addition, the voltage regulation
of the proposed multioutput converter is improved through the
analysis of its resonant characteristics under load variations and
minimizing the secondary conduction loss. The proposed multioutput
converter shows excellent performance in terms of its output
regulation from no-load to full-load conditions and good cross regulation
under high output currents. The design methodology and
performance of the proposed converter have been verified through
experimentation employing a 110-W (3.3 V/16 A, 5 V/12 A) prototype
converter.