Standby power supply system having a variable frequency inverter
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United States of America Patent
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Nov 29, 1994
Grant Date -
N/A
app pub date -
Sep 8, 1993
filing date -
Sep 8, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A standby power supply system is provided which prevents saturation of magnetic components thereof during its initial start-up. The power supply system includes a variable frequency inverter that is responsive to control signals for generating an initial frequency which is higher than the frequency of the utility line voltage and which is swept down gradually to the frequency of the line voltage when a detected logic signal is at the low logic level.
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