A New Isolated DC-DC Converter for Discontinuous Input and Continuous Output

• Published in: IEEE transactions on industry applications Vol. 55; no. 4; pp. 4215 - 4224
• Main Authors: Richard, Christian, McDonald, Katie, St-Onge, Xavier Francis, Saleh, Saleh
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.07.2019; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Capacitors; Continuous conduction mode (CCM); Converters; Discharges (electric); discontinuous conduction mode; Electric potential; Electronics; flyback transformers; Inductance; isolated dc–dc power converters; Magnetization; Performance evaluation; switch-mode converters; Switches; Topology; Transformers; Windings
• ISSN: 0093-9994; 1939-9367
• DOI: 10.1109/TIA.2019.2901567

This paper presents the development, analysis, and performance evaluation of a new topology for an isolated dc power electronic converter (PEC). The proposed topology (called the reverse flyback dc PEC ) is developed to process a discontinuous input voltage and produce a continuous output voltage. The reverse flyback dc PEC is operated based on charging the inductive element in the high-frequency transformer, while discharging the energy to the output side through on - off  actions of the switching element, which is located on the secondary side of the high-frequency transformer. A prototype for the proposed reverse flyback dc PEC is constructed to evaluate its performance under different operating conditions. Performance results show that the reverse flyback dc PEC is capable of processing discontinuous input voltages with different duty ratios and maintaining continuous output voltages with a minor sensitivity to the load type of ratings.