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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Veerachary, M. |
| Copyright Year | 2014 |
| Description | Author affiliation: Dept. of Electr. Eng., Indian Inst. of Technol. Delhi, New Delhi, India (Veerachary, M.) |
| Abstract | A zero-voltage transition large step-down buck converter is proposed in this paper. It provides larger step-down voltage ratio together with soft transition to one of the switch during turn-ON process. Furthermore, it transfers power to load at reduced current ripple, which is smaller in comparison to the conventional buck converter source current ripple. A pseudo zero-voltage transition cell is introduced to achieve soft-switching feature during turn-ON transition to one of the switches. This cell not only results in ZVT performance to the main switch, but also gives zero-current transition features to all the diodes present in the converter. Various operating modes of the circuit are identified and then steady-state time-domain analysis is established. Necessary and sufficient conditions for ensuring soft-switching are derived. To demonstrate the effectiveness of the proposed zero-voltage transition converter, PSIM simulations are carried out and then verified through experiments. A 48 to 12 V, 50 kHz low power prototype is use for experimentation. Measured and theoretical predicted results are in close agreement with each other. |
| Starting Page | 1 |
| Ending Page | 6 |
| File Size | 330258 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781479930159 |
| DOI | 10.1109/EPE.2014.6910752 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-08-26 |
| Publisher Place | Finland |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Voltage measurement Soft-switching Zero voltage transition Current measurement Large step-down buck converter Steady-state analysis Switches DC-DC power converters Steady-state Inductors Switching circuits |
| Content Type | Text |
| Resource Type | Article |
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