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Fifth‐order Π‐type load resonant converters analysis based‐on immittance property for constant output current applications
Author(s) -
Khoshsaadat Alireza,
Moghani Javad Shokrollahi,
Ehsanipour Mansour
Publication year - 2018
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.2463
Subject(s) - immittance , converters , robustness (evolution) , topology (electrical circuits) , voltage , control theory (sociology) , network topology , inverter , minification , current source , constant current , computer science , electronic engineering , mathematics , engineering , electrical engineering , mathematical optimization , control (management) , artificial intelligence , biochemistry , chemistry , gene , operating system
Summary Passive resonant tanks (PRTs) with immittance property are suitable candidates to achieve constant output current in load resonant converters (LRCs). In this paper, fifth‐order Π‐type LC networks are investigated to accede this target. At the first step, fifth‐order Π‐type passive LC networks that can be applied as a PRT are specified based on source and sink natures. Also, their structural advantages are described in detail to give a suitable perspective for the topology selection. At the second step, immittance property is verified for the proposed topologies and immittance PRTs (IPRTs), with their immittance operation conditions, are derived. To confirm the effectiveness, a 150‐W LRC is implemented leveraging new Π‐type IPRTs. A deep investigation is devoted to analyze the current/voltage stress in the components of the designed LRC. Moreover, kVA/kW ratio is considered as a key parameter for the reactive component size minimization. The proposed constant current LRC presents high load regulation capability in addition to the minimum reactive power and zero‐voltage switching (ZVS) on the inverter MOSFETs under the various loads. A significant robustness against load variations, less sensitivity versus parameters variation, and relatively higher efficiency are the main superiorities of the fifth‐order IPRTs to the lower order counterparts.