METHOD FOR CONTROLLING OUTPUT WAVEFORMS OF AN UNINTERRUPTIBLE POWER SUPPLY
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United States of America Patent
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Issued Date -
Jan 23, 2014
app pub date -
Jul 23, 2012
filing date -
Jul 23, 2012
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Abandoned
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Abstract
A method for controlling output waveforms of an uninterruptible power supply (UPS) provides multiple types of output waveforms through a UPS for users to selectively switch to a waveform of output power after the UPS enters a battery mode. The output waveforms include square wave and sinusoidal wave. Based on load characteristics, users can choose either square wave or sinusoidal wave as the waveform of the output power. Accordingly, single UPS can meet the demand of high efficiency and longer discharge time or better output characteristics and low noise according to different load conditions.
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