AC voltage regulator

专利名称：AC voltage regulator发明人：Suzuki, Yasunobu c/o I-Hits

Laboratory,Sugawara, Isao c/o ChiyodaCorporation

申请号：EP00304936.8申请日：20000609公开号：EP1059724A3公开日：20010314

专利附图：

摘要：An AC voltage regulator, which not only has a fast response speed with respectto input voltage fluctuations but also is small in size and light in weight and is capable to

boost an input voltage, comprises a high-frequency transformer 4, a first bi-directionalsemiconductor switch circuit 3, a second bidirectional semiconductor switch circuit 5 and athird bidirectional semiconductor switch circuit 6. An input AC voltage is ring-modulatedby the first bi-directional semiconductor switch circuit 3 and the obtained ring-modulatedvoltage is transformed at a high frequency by the high-frequency transformer 4 and thendemodulated by the second bi-directional semiconductor switch circuit 5. The obtainedAC demodulated voltage is added to the input AC voltage to produce an AC raisedvoltage. This AC raised voltage is pulse width modulated by the third bi-directionalsemiconductor switch circuit 6, which is controlled to become ON only while the secondbi-directional semiconductor switch circuit 5 is OFF, and the AC raised voltage iscontinuously regulated by continuous regulation of a duty ratio D of the second bi-directional semiconductor switch circuit 6 in the pulse width modulation.

申请人：I-HITS LABORATORY,CHIYODA CORPORATION

地址：3-3-4 Ekoda, Aoba-ku Yokohama-shi, Kanagawa JP,3-11, Nishikicho 1-chomeWarabi-shi, Saitama 335 JP

国籍：JP,JP

代理机构：Tothill, John Paul

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