A novel single-stage half-bridge series-resonant buck-boost inverter (HB-SRBBI) is proposed. The main attribute of the novel inverter topology is the fact that it generates an ac output voltage larger or lower than the dc input one, depending on the instantaneous duty cycle. This property is not found in the classical voltage source inverter (VST), which produces an ac output instantaneous voltage always lower than the dc input voltage. The proposed inverter circuit topology provides the main switch for turn-on at zero-current-switching (ZCS) by an auxiliary resonant cell built before the output choke. A state-space averaging approach is employed to analyze the system. A design example of 500 W ac/dc inverter is examined to assess the inverter performance and it provides high power efficiency above 90.7% under the rated power.
Novel single-stage half-bridge series-resonant buck-boost inverter
IEEE Transactions on Aerospace and Electronic Systems ; 40 , 4 ; 1262-1270
2004-10-01
1674806 byte
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Novel Single-Stage Half-Bridge Series-Resonant Buck-Boost Inverter
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