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1.发明授权公开(公告)号：US11631973B2
公开(公告)日：2023-04-18
申请号：US17484755
申请日：2021-09-24
发明人： Huaqiang Li , Seth O'Brien , Thomas M. Ruchti
摘要： A power conversion circuit having a solid-state circuit breaker integrated therein is disclosed. With a disconnect switch between a utility source and the power conversion apparatus described for meeting UL489, the power conversion circuit includes an input connectable to an AC source, a rectifier circuit connected to the input to convert an AC power input to a DC power, and a DC link coupled to the rectifier circuit to receive the DC power therefrom. The rectifier circuit comprises a plurality of phase legs each including thereon an upper switching unit and a lower switching unit, wherein at least one of the upper and lower switching units on each phase leg comprises a bi-directional switching unit that selectively controls current and withstands voltage in both directions, so as to provide a circuit breaking capability that selectively interrupts current flow through the rectifier circuit, while maintaining original power conversion functionalities.
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2.发明授权公开(公告)号：US12034292B2
公开(公告)日：2024-07-09
申请号：US18132062
申请日：2023-04-07
发明人： Huaqiang Li , Seth O'Brien , Thomas M. Ruchti
CPC分类号： H02H7/0833 , H02H3/202 , H02H7/1216 , H02H7/125 , H02M1/08 , H02M1/32 , H02M5/4585 , H02M7/2173
摘要： A power conversion circuit having a solid-state circuit breaker integrated therein is disclosed. With a disconnect switch between a utility source and the power conversion apparatus described for meeting UL489, the power conversion circuit includes an input connectable to an AC source, a rectifier circuit connected to the input to convert an AC power input to a DC power, and a DC link coupled to the rectifier circuit to receive the DC power therefrom. The rectifier circuit comprises a plurality of phase legs each including thereon an upper switching unit and a lower switching unit, wherein at least one of the upper and lower switching units on each phase leg comprises a bi-directional switching unit that selectively controls current and withstands voltage in both directions, so as to provide a circuit breaking capability that selectively interrupts current flow through the rectifier circuit, while maintaining original power conversion functionalities.
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3.发明公开公开(公告)号：US20230246435A1
公开(公告)日：2023-08-03
申请号：US18132062
申请日：2023-04-07
发明人： Huaqiang Li , Seth O'Brien , Thomas M. Ruchti
CPC分类号： H02H7/0833 , H02M7/2173 , H02M1/08 , H02H3/202 , H02M5/4585 , H02H7/125 , H02H7/1216 , H02M1/32
摘要： A power conversion circuit having a solid-state circuit breaker integrated therein is disclosed. With a disconnect switch between a utility source and the power conversion apparatus described for meeting UL489, the power conversion circuit includes an input connectable to an AC source, a rectifier circuit connected to the input to convert an AC power input to a DC power, and a DC link coupled to the rectifier circuit to receive the DC power therefrom. The rectifier circuit comprises a plurality of phase legs each including thereon an upper switching unit and a lower switching unit, wherein at least one of the upper and lower switching units on each phase leg comprises a bi-directional switching unit that selectively controls current and withstands voltage in both directions, so as to provide a circuit breaking capability that selectively interrupts current flow through the rectifier circuit, while maintaining original power conversion functionalities.
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4.发明授权公开(公告)号：US11152780B2
公开(公告)日：2021-10-19
申请号：US15692451
申请日：2017-08-31
发明人： Huaqiang Li , Seth O'Brien , Thomas M. Ruchti
摘要： A power conversion circuit having a solid-state circuit breaker integrated therein is disclosed. With a disconnect switch between a utility source and the power conversion apparatus described for meeting UL489, the power conversion circuit includes an input connectable to an AC source, a rectifier circuit connected to the input to convert an AC power input to a DC power, and a DC link coupled to the rectifier circuit to receive the DC power therefrom. The rectifier circuit comprises a plurality of phase legs each including thereon an upper switching unit and a lower switching unit, wherein at least one of the upper and lower switching units on each phase leg comprises a bi-directional switching unit that selectively controls current and withstands voltage in both directions, so as to provide a circuit breaking capability that selectively interrupts current flow through the rectifier circuit, while maintaining original power conversion functionalities.
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5.发明申请公开(公告)号：US20220014012A1
公开(公告)日：2022-01-13
申请号：US17484755
申请日：2021-09-24
发明人： Huaqiang Li , Seth O'Brien , Thomas M. Ruchti
摘要： A power conversion circuit having a solid-state circuit breaker integrated therein is disclosed. With a disconnect switch between a utility source and the power conversion apparatus described for meeting UL489, the power conversion circuit includes an input connectable to an AC source, a rectifier circuit connected to the input to convert an AC power input to a DC power, and a DC link coupled to the rectifier circuit to receive the DC power therefrom. The rectifier circuit comprises a plurality of phase legs each including thereon an upper switching unit and a lower switching unit, wherein at least one of the upper and lower switching units on each phase leg comprises a bi-directional switching unit that selectively controls current and withstands voltage in both directions, so as to provide a circuit breaking capability that selectively interrupts current flow through the rectifier circuit, while maintaining original power conversion functionalities.
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