Inverter circuit free from power-source-voltage fluctuation
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United States of America Patent
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May 5, 2009
Grant Date -
Mar 8, 2007
app pub date -
Sep 1, 2006
filing date -
Sep 2, 2005
priority date (Note) -
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Abstract
An inverter circuit includes a bridge circuit constituted of a plurality of pairs of a high-side switching element and a low-side switching element, a command signal processing section, a pulse generating section for generating pulse signals to control the inverter bridge circuit according to the command signal to have a dead time to prevent short circuiting of the dc power source and a command signal compensation section. The compensation section modifies the command signal according to a current voltage level of the dc power source to control the dead zone, thereby preventing deformation of ac output power of the bridge circuit.
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