Lazzarin TB, Barbi I. Design of a 660 V / 15 kVA single-phase UPS based on series connection of low-output-voltage modular UPS. Eletrônica de Potência [Internet]. 2012 Aug. 31 [cited 2024 Oct. 18];17(3):584-91. Available from: https://journal.sobraep.org.br/index.php/rep/article/view/540