Identification of steady-state operational modes of the seriesresonant DC-DC converter based on loosely coupled transformers inbelow-resonance operation

摘要

This paper identifies all the steady-state operational modes of anseries-loaded resonant DC-DC power converter (SRC) in below-resonancenoperation, taking into account the coupling quality of the isolatingntransformer. A novel operational plane is defined, and ten operationalnmodes are identified in this plane. Borders between neighboring domainsnof these operational modes are analytically defined. Results are givennin normalized form and experimentally verified