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AC-DC power conversion equipment, and uninterruptible power supply provided with the AC-DC power conversion device
AC-DC power conversion equipment, and uninterruptible power supply provided with the AC-DC power conversion device
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机译：AC-DC电力转换设备以及具有该AC-DC电力转换设备的不间断电源
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摘要
PROBLEM TO BE SOLVED: To obtain an uninterruptible power supply device having a wide input voltage range.;SOLUTION: An AC/DC power conversion device comprises: a first power conversion unit 5 which is connected to one power line of an AC power supply 1, and is a single-phase full bridge inverter; a second power conversion unit 6 which is connected between an output of the first power conversion unit 5 and the other power line of the AC power supply 1, and operates by a drive signal of one pulse applied for each half period of the AC power supply 1 to convert AC to positive and negative DC; and a positive electrode side capacitor 7 and a negative electrode side capacitor 8 to which the second power conversion unit 6 supplies power. The first power conversion unit 5 transforms input current waveform from the AC power supply 1 so as to reduce a maximum current value of the input current waveform.;COPYRIGHT: (C)2014,JPO&INPIT
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