UPS with auto self test
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United States of America Patent
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Oct 17, 1995
Grant Date -
N/A
app pub date -
May 19, 1993
filing date -
May 19, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An uninterruptible power supply (UPS) is disclosed in which AC line power is used to charge a back-up battery and to operate a load during a stand-by mode of operation of the UPS. In the back-up mode of operation when AC line power is not available, the battery is used to supply power to the load. The UPS automatically tests the load and the battery when the AC line power is available to assure availability of back-up power in case of a failure of the AC power. The results of the test is displayed to the user.
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