| 摘要 |
- 15 An inverter circuit contains a first DC source (1 Oa) and a second DC source (1 Ob) for providing a DC voltage; a common boost converter (12-16) for boosting both the DC 5 voltage provided by the first DC source (10a) and the DC voltage provided by the second DC source (1 Ob); an intermediate circuit capacitor (1 8a, 18b) which is connected between the outputs of the common boost converter (12-16); and an inverter (20) for converting the DC voltage provided by the intermediate circuit capacitor (1 8a, 18b) into an AC voltage. The common boost converter (12-16) 10 contains a series circuit which consists of a first inductance (12a) and a first rectifier element (16a) and is connected between an output of the first DC source (1Oa) and one side of the intermediate circuit capacitor as well as a series circuit which consists of a second inductance (1 2b) and a second rectifier element (1 6b) and is connected between an output of the second DC source (1 Ob) and another side of the 15 intermediate circuit capacitor. In addition, the common boost converter (12-16) contains a common switching element which is formed by at least two circuit breakers (1 4a, 14b) which are connected between the first and second DC sources (10a, 10b). 1b_ 12a 16a 20 14 1 1 8 DC 10a 12b 16b Fig.1 Fig.3 |
