Isolated full-bridge topologies are used in some industrial applications due to its characteristic of cost-effective and high power density. However, the transformer used for isolation in such topologies can be easily saturated. In this paper, a control algorithm to suppress flux density bias in the transformer is proposed. The algorithm can be easily implemented into a low cost DSP. Details of the practical implementation of the proposed algorithm are shown. An example of application over a 3 kW single-stage power factor corrector is presented. The experimental results illustrate the feasibility of the proposed digital control solution.
|Publikationsdato||1 dec. 2009|
|Status||Udgivet - 1 dec. 2009|
|Begivenhed||35th Annual Conference of the IEEE Industrial Electronics Society, IECON 2009 - Porto, Portugal|
Varighed: 3 nov. 2009 → 5 nov. 2009
|Konference||35th Annual Conference of the IEEE Industrial Electronics Society, IECON 2009|
|Periode||03/11/2009 → 05/11/2009|
|Sponsor||The Institute of Electrical and Electronics Engineers (IEEE), IEEE Industrial Electronics Society (IES), Society of Instrument and Control Engineers (SICE-Japan), University of Porto, NOVA University Lisbon|