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New iMOTION Appliance-Motor Control Mitigates Growing Energy Crisis in China

Authored on: Jun 12, 2006 by Toshio Takahashi

Technical Paper

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Estimates are that more than half of all electricity in China powers motors. The traditional mechanical control scheme wastes half of the electricity it uses. Inverterbased, variable-speed-drive designs can save most of these losses.

Advancing the adoption of inverter-based variable speed drives requires finding a means to achieve mechanical simplicity while maintaining the performance necessary to meet high-efficiency goals. A new iMOTION chipset consists of a unique MCE (Motion Control Engine) and a dedicated high-voltage IC to drive a PM (permanent-magnet) motor. This paper presents the chipset in the context of an air-conditioner design with corresponding test data.

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