Abstract
This paper proposes a bridgeless half-bridge ac-dc converter with series-connected two transformers. The proposed converter integrates the operation of the bridgeless power factor correction (PFC) boost rectifier and the asymmetrical pulse-width modulation half-bridge dc-dc converter. The proposed converter provides an isolated dc output voltage without any full-bridge diode rectifier. Conduction losses are lowered by eliminating the full-bridge diode rectifier. Switching losses are reduced by achieving zero-voltage switching of the power switches. To improve the power efficiency of the bridgeless half-bridge ac-dc converter, this paper presents the study results about the bridgeless half-bridge ac-dc converter with the series-connected two transformers. By using series-connected two transformers, the proposed convert has a simpler power circuit. The proposed converter gives a high efficiency, high power factor, and low cost. The proposed converter achieves a high efficiency of 93.5 % for 250 W (50 V / 5 A) output power at 90 Vrms line voltage.
| Original language | English |
|---|---|
| Title of host publication | 2013 28th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2013 |
| Pages | 3241-3245 |
| Number of pages | 5 |
| DOIs | |
| State | Published - 2013 |
| Event | 28th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2013 - Long Beach, CA, United States Duration: 2013.03.17 → 2013.03.21 |
Publication series
| Name | Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC |
|---|
Conference
| Conference | 28th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2013 |
|---|---|
| Country/Territory | United States |
| City | Long Beach, CA |
| Period | 13.03.17 → 13.03.21 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Quacquarelli Symonds(QS) Subject Topics
- Engineering - Electrical & Electronic
- Engineering - Petroleum
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