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1. 发明申请

WO1997047070A1 AC/AC CONVERTER 审中-公开
标题翻译： AC / AC转换器
公开(公告)号：WO1997047070A1
公开(公告)日：1997-12-11
申请号：PCT/JP1996001538
申请日：1996-06-06
申请人： I-HITS LABORATORY CORPORATION , CHIYODA CORPORATION , SUZUKI, Yasunobu , SUGAWARA, Isao
发明人： I-HITS LABORATORY CORPORATION , CHIYODA CORPORATION
IPC分类号： H02M05/293
CPC分类号： H02M7/2173 , H02M5/225
摘要： An AC/AC converter includes first to sixth AC switches. A series of the first and second AC switches and a series of the third and fourth switches are connected in parallel with each other between both ends of an AC input. One end of the primary winding of a transformer is connected to the node of the first and second AC switches and the other end to the node of the fourth and third AC switches. One end of the secondary winding of the transformer is connected to one end of the fifth AC switch and the other end one end of the sixth AC switch. The other ends of the fifth and sixth AC switches are connected to one of the output terminals and the mid point of the secondary winding to the other. The AC/AC converter further includes a control means which alternately operates a group of the first, third, and fifth AC switches and a group of the second, fourth, and sixth AC switches at a frequency higher than that of the input. The AC input repeatedly and alternately flows through the primary winding of the transformer in different directions at a frequency which is sufficiently higher than that of the AC input. Namely, the AC input is converted into an AC of a higher frequency. An arbitrary voltage proportional to the turn ratio of the transformer appears on the secondary side of the transformer at the higher frequency. On the secondary side, the direction of the AC is again controlled by means of the secondary-side AC switches which operate synchronously with the primary-side AC switches and the waveform of the AC closely resembles or is similar to the original waveform. Since a high frequency is impressed upon the transformer, the size of the transformer is reduced and the efficiency of the transformer is improved.
摘要翻译： AC / AC转换器包括第一至第六交流开关。一系列第一和第二AC开关和一系列第三和第四开关在AC输入的两端彼此并联连接。变压器的初级绕组的一端连接到第一和第二AC开关的节点，另一端连接到第四和第三AC开关的节点。变压器的次级绕组的一端连接到第五交流开关的一端，另一端连接第六交流开关的一端。第五和第六交流开关的另一端连接到另一个输出端子和次级绕组的中点之一。 AC / AC转换器还包括控制装置，其以比输入的频率高的频率交替地操作一组第一，第三和第五AC开关以及一组第二，第四和第六AC开关。交流输入以与交流输入相当高的频率反复地并且交替地流过变压器的初级绕组。即，将AC输入转换为较高频率的AC。与变压器的匝数比成比例的任意电压在变压器的次级侧以较高的频率出现。在次级侧，通过与初级侧AC开关同步操作的次级侧AC开关再次控制AC的方向，并且AC的波形与原始波形相似或类似。由于高频被压在变压器上，所以变压器的尺寸减小，变压器的效率得到提高。

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