Conference paper
A Hybrid Multitrack-Sigma Converter with Integrated Transformer for Wide Input Voltage Regulation
This paper presents a hybrid multitrack converter with the capability of partial power regulation. This converter incorporates the merits of the Multitrack converter and Sigma converter. The input power is distributed and transferred by a DC transformer (DCX) and a two-stage circuit, whose front stage is a PWM converter to realize voltage regulation and the next stage works as DCX.
The two DCXs are integrated into one transformer. The proposed converter realizes reduced device ratings, partial power regulation and integrated transformer. A 32-75V input, 5V, 20A output isolated dc-dc converter for data center applications is built to verify the effectiveness of the proposed circuit structure.
The peak efficiency of 95.1% is achieved at 48V nominal input voltage with 190W/inch3 power density.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2020 |
| Pages: | 1844-1850 |
| Proceedings: | 2020 IEEE Applied Power Electronics Conference and Exposition |
| Series: | Conference Proceedings - Ieee Applied Power Electronics Conference and Exposition - Apec |
| ISBN: | 1728148286 , 1728148294 , 1728148308 , 9781728148281 , 9781728148298 and 9781728148304 |
| ISSN: | 10482334 and 24706647 |
| Types: | Conference paper |
| DOI: | 10.1109/APEC39645.2020.9124223 |
| ORCIDs: | Li, Mingxiao , Ouyang, Ziwei and Andersen, Michael A.E. |
DC-DC converter DC-DC power converters DC-DC power convertors DCX Density measurement PWM converter PWM power convertors Power system measurements Prototypes Pulse width modulation converters Regulation Transformers current 20.0 A hybrid multitrack converter hybrid multitrack-sigma converter machine control nominal input voltage partial power regulation power density switching convertors two-stage circuit voltage 32.0 V to 75.0 V voltage 48.0 V voltage 5.0 V voltage control voltage regulators wide input voltage regulation
