ADJUSTABLE UNINTERRUPTIBLE POWER SUPPLY PROTECTION
摘要
<p>An uninterruptable power supply (UPS) designed to switch power inputs between an alternating current mode and a battery mode by adjusting the amplitude and/or frequency windows of the input voltage so that the uninterruptible power supply accepts the unstable voltage and/ or frequency. This prevents the uninterruptible power supply to switch back to the battery mode during a transfer time between the battery mode and the AC mode. The uninterruptable power supply includes a control circuit. The control circuit modifies the monitored value and/or actual amplitude and/or the frequency window when unstable amplitude and/or an unstable frequency are detected at the input terminal of the input voltage.</p>
申请公布号
WO2011139766(A1)
申请公布日期
2011.11.10
申请号
WO2011US34136
申请日期
2011.04.27
申请人
TOSHIBA INTERNATIONAL CORPORATION;MORISHIMA, YOICHI;WESTMORELAND, DAVID, M.