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Practical layout for current sensing circuit of IRMCF300 series IC

Posted: 08 Jun 2010 ?? ?Print Version ?Bookmark and Share

Keywords:IRMCF300 series IC? circuit practical layout? current sensing circuit?

This application note provides practical tips on PCB layout and how to set configuration registers when using the IRMCF300 series of sensorless motor control ICs. The control IC reconstructs the motor winding currents by sampling the current flowing in the inverter DC link. The IRMCF300 series ICs include the amplifiers, A/D and timing circuits required for motor current reconstruction. Careful design of the current feedback circuit layout will minimize noise and provide a high quality current measurement. Configuration registers in the IRMCF300 series ICs allow fine tuning of the sampling instants to maximize the fidelity of the measurement. The application note describes operating principles, practical implementation and test results.

View the PDF document for more information.

Click here to view related datasheets.





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