Power converter circuit and method for feeding a system from a DC voltage source
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United States of America Patent
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N/A
Issued Date -
Mar 6, 2008
app pub date -
Aug 21, 2007
filing date -
Aug 25, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Circuit and method for converting a DC voltage, which is not constant over time and is preferably from a solar energy installation, into an AC voltage. The circuit arrangement has an input inductor and an H-bridge having a respective first current valve and a respective second current valve, preferably an RB-IGBT, for each branch, each current valve having a switchable forward direction and a reverse direction. A capacitor is additionally connected between the two branches of the AC voltage connection of the H-bridge. During operation, the RB-IGBTs of the H-bridge operate in a cyclical pulsed mode and are occasionally used as step-up converters together with the input inductor.
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