ELECTRIC CURRENT DETECTION DEVICE AND MOTOR CONTROL DEVICE

WIPO Patent Application WO/2012/066800

A1

An electric current detection device for reducing the detection error included in a detected electric current in order to detect the output electric current of a PWM inverter, the device characterized in comprising electric current detection means (111, 112) for detecting the electric current at a plurality of specific timings in a fixed interval set in advance, and adding means (113u, 113w) for adding the electric current detection value of each of the plurality of specific timings in a fixed interval; and in that the electric current detection means detects the electric current at least once each for the rising side and the falling side of a triangular PWM carrier wave as the plurality of specific timings in a fixed interval.

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TANIGUCHI SHUN (JP)
NAKAZAWA YOSUKE (JP)
SUZUKI KENTARO (JP)
YUUKI KAZUAKI (JP)
YASUI KAZUYA (JP)
MAEKAWA KATSUMI (JP)
YAMAZAKI OSAMU (JP)

PCT/JP2011/057362

May 24, 2012

March 25, 2011

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TOSHIBA KK (JP)
TANIGUCHI SHUN (JP)
NAKAZAWA YOSUKE (JP)
SUZUKI KENTARO (JP)
YUUKI KAZUAKI (JP)
YASUI KAZUYA (JP)
MAEKAWA KATSUMI (JP)
YAMAZAKI OSAMU (JP)

H02P27/06; H02M7/48; H02P6/06; H02P6/08; H02P6/16; H02P6/18; H02P6/28; H02P21/00; H02P21/14; H02P21/22; H02P23/14; H02P25/022; H02P27/04; H02P27/08

JP2010183661A	2010-08-19
JP2010011639A	2010-01-14
JP2008182832A	2008-08-07

MIYOSHI, Hidekazu et al. (JP)
Hidekazu Miyoshi (JP)

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