Power Stage Strategies For Motor Control In Home Appliance Design

by Brian Chu, Infineon Technologies, El Segundo, Calif., How2Power Today, Mar 21 2018

Focus:
In the design of the motor drive systems for appliances, the prevailing trend in power electronics has been in the integration of discrete components to create intelligent power module (IPM) devices. IPMs contribute to reliability and size reduction, while newer IPMs offer the designer needed flexibility and lessen their impact on system cost. This article discusses the different power stage options (discrete, hybrid, IPM and smart IPM), and uses designs for in-room air conditioners and refrigerators to illustrate the associated electrical, thermal, size and cost tradeoffs of the power stage options.

What you’ll learn:

• How to understand the different component integration options available for inverter power stages used in appliance motor drives
• How to understand the different levels of integration available from intelligient MOSFET or IGBT power modules

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