Method and apparatus for providing uninterruptible power
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United States of America Patent
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Nov 25, 2008
Grant Date -
Mar 2, 2006
app pub date -
Aug 31, 2004
filing date -
Aug 31, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
Methods and apparatus for providing uninterruptible power are provided by aspects of the invention. One aspect is more particularly directed to an uninterruptible power supply for providing power to a load. The uninterruptible power supply includes an input to receive input power, an output to provide output power, a back-up power source coupled to the output to provide backup power at the output, a contactor coupled to the input and having an open state and a closed state, a contactor control circuit having an output coupled to the contactor to provide an output voltage to control an operational state of the contactor, the contactor control circuit being configured to provide an output voltage having a first voltage level to the contactor to control the contactor to switch from the open state to the closed state and to provide a second output voltage having a second voltage level to maintain the contactor in the closed state.
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