Freescale Semiconductor DRM079 manual Variable Speed DC Fan Control using the MC9RS08KA2

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Variable Speed DC Fan Control using the MC9RS08KA2

Designer Reference Manual

by: Vincent Ko

Freescale Semiconductor, Inc. Hong Kong

To provide the most up-to-date information, the revision of our documents on the World Wide Web will be the most current. Your printed copy may be an earlier revision. To verify that you have the latest information available, refer to http://www.freescale.com

The following revision history table summarizes changes contained in this document. For your convenience, the page number designators have been linked to the appropriate location.

Revision History

Date

Revision

 

Description

Page

Level

 

Number(s)

 

 

 

 

 

 

 

 

05/2006

0

Initial release

 

N/A

 

 

 

 

 

Variable Speed DC Fan Control using the MC9RS08KA2, Rev. 0

Freescale Semiconductor

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Contents Variable Speed DC Fan Control using the MC9RS08KA2 Page Revision History Variable Speed DC Fan Control using the MC9RS08KA2Freescale Semiconductor Table of Contents Freescale Semiconductor Introduction Chapter IntroductionDC Fan Reference Design Targets Freescale’s New Generation Ultra Low Cost MCUBi-Phase Bldc Motor Diagram Bi-Phase Bldc MotorFreescale Semiconductor Chapter Motor Control CommutationRotor Position Control Speed Control Commutation WaveformsMotor Startup Fault DetectionFreescale Semiconductor Block Diagram Chapter ImplementationHardware Resources Control Loop Firmware Control Loop = V DD⎜ RC⎟ Temperature Sensor Measurement#63, Mtimmod ACMPSCACF, AcmpscAcmpsc Temperature Conversion Temperature Conversion Table Freescale Semiconductor VR1 Freescale Semiconductor Appendix B Program Listing Acmpoutputboth RtidisableMtimtclkfalling Mtimtclkrising#ICSDIV2, ICSC2 #HIGH613NVICSTRM, PageselMAPADDR6NVFTRIM, Icssc MAPADDR6NVICSTRM, Icstrm $3FFA#255, Mtimmod KbiesKbipe #MTIMBUSCLKMTIMDIV256, MtimclkRts Drive coil MAPADDR6SRSMTIMSCTOF, Mtimsc KBISCKBACK, Kbisc#24, Mtimmod KbiscBUZZER, Ptad #6, Mtimmod#30, Mtimmod Page How to Reach Us