Inverter type AC generator with a zero-crossing detection circuit used to provide a synchronized operation and method of operating the same
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United States of America Patent
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Jan 26, 2010
Grant Date -
Aug 31, 2006
app pub date -
Feb 7, 2006
filing date -
Feb 7, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
An inverter type AC generator includes an inverter circuit converting a DC output into AC output of a predetermined frequency and supplying the AC output to a load via a load line in order to improve the quality of an AC output waveform at least in parallel operations. The inverter AC generator includes a zero-crossing detection circuit for detecting a timing of zero-crossings of an AC output voltage waveform on the output line. A controller generates a drive signal in synchronization with the timing of the detected zero-crossings, when a predetermined number of zero-crossings have been detected, and drives the inverter to perform a synchronized operation process.
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