Lighting equipment built-in on-line uninterruptible power system capable of outputting AC sinusoidal power from a single DC source
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United States of America Patent
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Jun 10, 2003
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N/A
app pub date -
Feb 6, 2002
filing date -
Feb 1, 2002
priority date (Note) -
Expired
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Abstract
Disclosed is a lighting equipment built-in on-line uninterruptible power system (UPS) Capable of supplying AC sinusoidal power from a single DC source by boosting up the DC voltage of its battery unit and inverting it to an AC sinusoidal output via a DC to AC inverter circuit according to pulse width modulation (PWM) signals successively delivered by a controller circuit during the utility power failure, and at the same time, starts the built-in lighting equipment to illuminate the surroundings. The AC output power is intensified and stabilized through series and parallel connections of the inner circuit components of the UPS.
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