Title:
RECTIFIER, CHARGING SYSTEM AND ELECTRIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2021/081967
Kind Code:
A1
Abstract:
Embodiments of the present application disclose a rectifier, a charging system, and an electric vehicle, which are used for reducing the cost of the rectifier while achieving highly efficient conversion. Comprising: an alternating current (AC)/direct current (DC) conversion circuit and a power factor correction (PFC) circuit; the AC/DC conversion circuit comprises a diode; and a three-phase AC terminal for receiving a three-phase AC voltage in the AC/DC conversion circuit is connected with the AC terminal of the PFC circuit; the DC terminal of the AC/DC conversion circuit is connected with the DC terminal of the PFC circuit; the AC/DC conversion circuit is used for converting a first phase AC voltage and a second phase AC voltage into a first DC voltage when the absolute value of the difference between the voltage value of the first phase AC voltage and the voltage value of the second phase AC voltage in the three-phase AC voltage is greater than a voltage value of a third phase AC voltage; and a PFC circuit is used for converting the third phase AC voltage into the second DC voltage.
Inventors:
FU DIANBO (CN)
LIANG YONGTAO (CN)
WANG SHAOHUA (CN)
LIANG YONGTAO (CN)
WANG SHAOHUA (CN)
Application Number:
PCT/CN2019/114904
Publication Date:
May 06, 2021
Filing Date:
October 31, 2019
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H02M7/757
Foreign References:
| CN109167524A | 2019-01-08 | |||
| CN101834539A | 2010-09-15 | |||
| US6636430B1 | 2003-10-21 |
Other References:
SOEIRO THIAGO B.; MAIA GEAN J.; ORTMANN M. S.; HELDWEIN MARCELO L.: "High Efficiency Three-Phase Unidirectional Buck-type PFC Rectifier Concepts", IECON 2013 - 39TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY, 10 November 2013 (2013-11-10), pages 7763 - 7768, XP032539679, ISSN: 1553-572X, DOI: 10.1109/IECON.2013.6700428
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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