Title:
INVERTER CIRCUIT AND DRIVING METHOD THEREFOR, AND MULTI-PHASE INVERTER CIRCUIT AND INVERTER
Document Type and Number:
WIPO Patent Application WO/2023/019969
Kind Code:
A1
Abstract:
Disclosed in the present application are an inverter circuit and a driving method therefor, and a multi-phase inverter circuit and an inverter. The inverter circuit comprises a first switch (10), a freewheeling unit (20), a resonant unit (30), a bridge arm unit (40), and a control unit (50). The first switch (10) is connected to a DC power supply (200) and a midpoint of the freewheeling unit (20), respectively. The resonant unit (30) is connected to the midpoint of the freewheeling unit (20) and a midpoint of the bridge arm unit (40), respectively. The midpoint of the bridge arm unit (40) is further configured to be connected to a load (300). The freewheeling unit (20) is connected in parallel to the bridge arm unit (40) and is connected to the DC power supply (200). The control unit (50) is connected to the first switch (10) and a control end of the bridge arm unit (40), respectively. The control unit (50) is configured to control the switch state of the first switch (10) and to control the switch state of an inverter switch in the bridge arm unit (40), so as to convert the direct current of the DC power supply (200) into alternating current, and the alternating current is output at the midpoint of the bridge arm unit (40). In this way, the inversion function can be implemented by means of a relatively simple circuit, and the cost is relatively low.
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Inventors:
LEI JIANHUA (CN)
TANG CHAOYIN (CN)
MA HUI (CN)
QIN GENG (CN)
YIN XIANGZHU (CN)
TANG CHAOYIN (CN)
MA HUI (CN)
QIN GENG (CN)
YIN XIANGZHU (CN)
Application Number:
PCT/CN2022/085381
Publication Date:
February 23, 2023
Filing Date:
April 06, 2022
Export Citation:
Assignee:
SHENZHEN POWEROAK NEWENER CO LTD (CN)
International Classes:
H02M7/537
Foreign References:
| CN113395005A | 2021-09-14 | |||
| US20010033507A1 | 2001-10-25 | |||
| CN110277934A | 2019-09-24 | |||
| CN106787903A | 2017-05-31 | |||
| US5717584A | 1998-02-10 |
Other References:
WANG QIANG, WANG CHAO-YIN, LIU TIAN-SHI, XIAO-QIN: "Ｒesonant pole zero current soft-switching inverter with simple structure", ELECTRIC MACHINES AND CONTROL, vol. 20, no. 7, 30 July 2016 (2016-07-30), pages 102 - 110, XP093037345, ISSN: 1007-449X, DOI: 10.15938/j.emc.2016.07.014
SE-JIN SOHN ; KUI-JUN LEE ; RAE-YOUNG KIM ; DONG-SEOK HYUN: "An improved soft-switching inverter with an unidirectional auxiliary switch", ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE), 2010 IEEE, IEEE, PISCATAWAY, NJ, USA, 12 September 2010 (2010-09-12), Piscataway, NJ, USA , pages 2791 - 2796, XP031787364, ISBN: 978-1-4244-5286-6
SE-JIN SOHN ; KUI-JUN LEE ; RAE-YOUNG KIM ; DONG-SEOK HYUN: "An improved soft-switching inverter with an unidirectional auxiliary switch", ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE), 2010 IEEE, IEEE, PISCATAWAY, NJ, USA, 12 September 2010 (2010-09-12), Piscataway, NJ, USA , pages 2791 - 2796, XP031787364, ISBN: 978-1-4244-5286-6
Attorney, Agent or Firm:
LIUJIA CHINA IP LAW OFFICE (CN)
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