BEESTK-S08-STD Freescale Semiconductor, BEESTK-S08-STD Datasheet - Page 26
BEESTK-S08-STD
Manufacturer Part Number
BEESTK-S08-STD
Description
KIT TOOL BEEKIT WIRELESS CONN
Manufacturer
Freescale Semiconductor
Type
802.15.4/Zigbeer
Datasheet
1.BEESTK-S08-FLT.pdf
(75 pages)
Specifications of BEESTK-S08-STD
Product
Display Modules
For Use With/related Products
Beestack
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are
the property of their respective owners. © Freescale Semiconductor, Inc. 2006.
Application Diagram
Other purposes
Power Line
Start / Stop
Superior
system
Sensorless BLDC Motor Control using MC9S08AW60
3 Phase BLDC Power Stage
Module
Modul
GPIO
SCI
Zero Crossing
Period & Position
Recognition
e
Back EMF
Voltages
DC Bus Voltage & Current
3 Phase Back EMF Sensing
Generation
ADC Module
Ramp
Sensing
DC Bus
Voltage
1/T
Commutation
Required
Required
Control
torque
speed
Actual
speed
MC9S08AW60 Control Board
+ -
-
DC Bus
Current
PI Controller
PI Controller
3 Phase Inverter
Timer 1 Module
Torque
Speed
Limitations
Comm.
sequence
Duty cycle
BDM
►
On Board
Programming
FreeMaster
Sensorless Back-EMF zero cross algorithm
•
•
•
Sensing voltage on disconnected phase
When sensed voltage crosses half of DC bus voltage,
the rotor is in middle between two commutation
The detection of this zero crossing allows to detect
rotor position
3 Phase
BLDC
Motor
TM
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