Title:
BRIDGE CIRCUIT AND ENERGY CONVERSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/017740
Kind Code:
A3
Abstract:
The invention relates to a bridge circuit (10) for providing an alternating current at a phase terminal (AC) having a first direct current terminal (DC+) and a second direct current terminal (DC-) for connecting a direct current source or a direct current load, an intermediate circuit (17), and a bridge (11) with bridge switches, which bridge is configured to provide potentials at the direct current terminals (DC+, DC-) at a first bridge output (18a) and a second bridge output (18b) which are clocked independently of one another. A first connection path (15a) and a second connection path extend between the respective bridge outputs (18a) and the phase terminal (AC), wherein each of the connection paths (18a, 18b) has, on the bridge output side, a filter choke (12a, 12b) and the filter chokes (12a, 12b) of the connection paths (15a, 15b) are magnetically coupled to one another. A cut-off relay (13) with a plurality of relay contacts (14) is arranged between the bridge outputs (18a, 18b) and the phase terminal (AC) in such a manner that in each cut-off portion of the connection paths (15a, 15b) at least one of the relay contacts (14) is arranged in each of the connection paths (15a, 15b). Furthermore, the invention relates to an energy conversion system with such a bridge circuit (10).
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Inventors:
RIGBERS KLAUS (DE)
Application Number:
PCT/EP2023/069389
Publication Date:
March 21, 2024
Filing Date:
July 12, 2023
Export Citation:
Assignee:
SMA SOLAR TECHNOLOGY AG (DE)
International Classes:
H02M1/00; H02M1/12; H02M7/483; H02M7/487
Domestic Patent References:
| WO2021160791A1 | 2021-08-19 | |||
| WO2014203091A1 | 2014-12-24 |
Foreign References:
| US20210013796A1 | 2021-01-14 | |||
| KR20180106389A | 2018-10-01 | |||
| EP2963794B1 | 2018-09-19 | |||
| DE102012107122A1 | 2013-02-14 | |||
| CN107134937A | 2017-09-05 |
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