Inverter apparatus and a semiconductor device used for the same

Details Inverter apparatus and a semiconductor device used for the same Inverter apparatus and a semiconductor device used for the same

2011-07-26

2011-07-26

Masih, Karen (Department: 2837)

Electricity: motive power systems

Induction motor systems

Primary circuit control

C318S781000, C318S434000

Reexamination Certificate

active

07986121

ABSTRACT:
An inverter apparatus is for correcting deviations among current detectors of a three-phase motor. The inverter apparatus includes bidirectional switching elements that have on and off states in the cases in which there are 1 and 0 mean on- and off-states. The states are alternately repeated by controlling the switches, and measurement for correcting the deviations among the current detectors are obtained in the state Currents have the same amplitude flow on a U phase and a V phase. In the state of normal use, the inverter apparatus is operated by correcting detected current values based on the measurement data.

REFERENCES:
patent: 2005/0178609 (2005-08-01), Uryu
patent: 2003-235268 (2003-08-01), None
patent: 2003-324985 (2003-11-01), None
patent: 2004-225580 (2004-08-01), None
patent: 2006-230766 (2006-09-01), None
patent: 2006-230766 (A) (2006-09-01), None
Chinese Office Action dated Feb. 12, 2011, with English translation.

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