Open AccessQuasi‐duality between SS and SP topologies of basic electric‐field coupling wireless power transfer system
Author(s) -
Ishihara M.,
Umetani K.,
Umegami H.,
Hiraki E.,
Yamamoto M.
Publication year - 2016
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2016.1253
Subject(s) - topology (electrical circuits) , network topology , maximum power transfer theorem , wireless power transfer , electronic circuit , equivalent circuit , power (physics) , computer science , coupling (piping) , series (stratigraphy) , electronic engineering , electrical impedance , wireless , engineering , electrical engineering , physics , telecommunications , voltage , computer network , quantum mechanics , mechanical engineering , paleontology , biology
Series–series (SS) topology and series–parallel (SP) topology of the electric‐field coupling wireless power transfer system are widely utilised for practical applications. However, selecting the appropriate circuit topology, which maximise the output power by design optimisation, is often difficult, because these circuit topologies are generally analysed using different circuit models. This difficulty by analysing novel equivalent circuits for SS and SP topologies is addressed. As a result, the output power of SP topology is found to be approximated by that in SS topology with transformed load impedance. This result can offer a simple strategy for topology selection as well as design optimisation.