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1. 发明公开

EP2445100A1 CIRCUIT FOR CONVERTING DC VOLTAGE TO AC VOLTAGE 审中-公开
标题翻译： SCH UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG
公开(公告)号：EP2445100A1
公开(公告)日：2012-04-25
申请号：EP10782891.5
申请日：2010-05-26
申请人： Beijing Kinglong New Energy Technology Co., Ltd
发明人： YU, Zhonglan
IPC分类号： H02M7/537
CPC分类号： H02M7/53871 , H02J3/383 , H02M1/44 , H02M7/5388 , Y02E10/563
摘要： A circuit for converting DC voltage to AC voltage comprises an inverter (2) and a DC power supply (1) comprising a solar energy generator (SG) and a capacitor (C1). The inverter (2) includes six switch devices (S1, S2, S3, S4, S5, S6), diodes (D1, D2, D3, D4, D5, D6) respectively connected in parallel with corresponding one of the switch devices (S1, S2, S3, S4, S5,S6), a seventh and an eighth diodes (D7, D8) and a first and a second inductors (L1, L2). The first, the third and the fifth switch devices (S1, S3, S5) are connected in series. The second, the fourth and the sixth switch devices (S2, S4, S6) are connected in series. The two series connected circuits are connected in parallel between the two terminals of the capacitor (C1). The cathode of the seventh diode (D7) is connected with the first terminal of the third switch device (S3) and the anode of the seventh diode (D7) is connected with the second terminal of the fourth switch device (S4). The cathode of the eighth diode (D8) is connected with the first terminal of the fourth switch device (S4) and the anode of the eighth diode (D8) is connected with the second terminal of the third switch device (S3). The first terminal of the first inductor (L1) is connected with the second terminal of the fourth switch device (S4). The first terminal of the second ductor(L2) is connected with the second terminal of the third switch device (S3). The second terminal of the first inductor (L1) and the second terminal of the second inductor (L2) are respectively connected with two terminals of an AC load or the mains supply. Electromagnetic interference can be reduced by the circuit.
摘要翻译：用于将直流电压转换为交流电压的电路包括逆变器（2）和包括太阳能发电机（SG）和电容器（C1）的直流电源（1）。逆变器（2）包括分别与对应的一个开关装置（S1（S））并联连接的六个开关装置（S1，S2，S3，S4，S5，S6），二极管（D1，D2，D3，D4，D5，D6），S2，S3，S4，S5，S6），第七和第八二极管（D7，D8）和第一和第二电感器（L1，L2）。第一，第三和第五开关装置（S1，S3，S5）串联连接。第二，第四和第六开关装置（S2，S4，S6）串联连接。两个串联的电路并联在电容器（C1）的两个端子之间。第七二极管（D7）的阴极与第三开关装置（S3）的第一端子连接，第七二极管（D7）的阳极与第四开关装置（S4）的第二端子连接。第八二极管（D8）的阴极与第四开关装置（S4）的第一端子连接，第八二极管（D8）的阳极与第三开关装置的第二端子连接（S3）。第一电感器（L1）的第一端子与第四开关装置的第二端子连接（S4）。第二导体（L2）的第一端子与第三开关装置（S3）的第二端子连接。第一电感器（L1）的第二端子和第二电感器（L2）的第二端子分别与AC负载或主电源的两个端子连接。电路可以减少电磁干扰。

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