Motor driving control device
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United States of America Patent
Stats
-
Oct 18, 2005
Grant Date -
Apr 22, 2004
app pub date -
Jul 28, 2003
filing date -
Jul 26, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Two inverters (INV1, INV2) supply phase currents to three-phase coils (Y1, Y2). Although two phase currents must conventionally be measured and four current sensors are thus required, according to the present invention, the number of phase currents to be measured is reduced as a result of use of an observer for phase current estimation.
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Family
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Cited Art Landscape
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