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| Content Provider | IET Digital Library |
|---|---|
| Author | Lin, Bor Ren Chien, Chih Cheng |
| Abstract | This study presents a new DC/DC converter with series-connected transformers to achieve zero voltage switching (ZVS) for power switches, less transformer secondary winding and partial ripple current cancellation. Two three-level circuits using the same active switches are operated with interleaved half switching cycle. The voltage stress of all switches is clamped at V in/2. The transformers secondary windings are connected in series to balance the primary side currents. The current-doubler rectifier is adopted on the output side. Thus, the output inductor ripple currents can be partially cancelled each other and the resultant ripple current at the output capacitor is reduced compared with the output ripple current of the centre-tapped rectifier topology. Based on the resonant behaviour by the output capacitance of active switches and the leakage inductance (or external inductance), all power switches are turned on at ZVS. Laboratory experiments with a 1 kW prototype, verifying the effectiveness of the proposed converter, are described. |
| Starting Page | 202 |
| Ending Page | 213 |
| Page Count | 12 |
| ISSN | 17554535 |
| Volume Number | 6 |
| e-ISSN | 17554543 |
| Issue Number | Issue 1, Jan (2013) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-pel/6/1 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2012.0127 |
| Journal | IET Power Electronics |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Active Switches Centre-tapped Rectifier Topology Current-doubler Rectifier DC-DC Power Converter Interleaved Half Switching Cycle Leakage Inductance Output Capacitor Output Inductor Ripple Current Partial Ripple Current Cancellation Power 1 KW Power Converter Power Supplies to Apparatus Power Switch Power Transformer Primary Side Current PWM Power Converter Rectifying Circuit Series-connected Transformer Soft Switching DC-DC PWM Converter Switching Converter Three-level Circuit Transformer And Reactors Transformer Secondary Winding Transformer Windings Voltage Stress Zero Voltage Switching ZVS |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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