UM0324 datasheet(2/105 Pages) STMICROELECTRONICS

2 / 105 page

UM0324

2/105

AC IM IFOC software library V1.0 features (CPU running at

60MHz)

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Speed feedback:

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Tacho generator

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Quadrature incremental encoder

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Current sampling method:

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2 isolated current sensors (ICS)

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3-shunt resistors placed on the bottom of the three inverter legs

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Current regulation for torque and flux control:

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PIDs sampling frequency adjustable up to the PWM frequency.

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Speed control:

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Open loop operation

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Closed loop operation, PID regulation with 0.5ms to 127ms sampling time

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16-bit space vector PWM generation frequencies:

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PWM frequency can be easily adjusted

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Centered PWM pattern type

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11 bits resolution at 14.6Khz

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Free C source code and spreadsheet for look-up tables

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CPU load below 30% (IFOC algorithm refresh frequency 8KHz)

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Motor control modules developed in accordance with MISRA C rules

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Code size 22.8KB (three shunt resistors for current reading, tacho generator for speed

feedback) + 8.2KB for LCD/joystick management

Note:

These figures are for information only; this software library may be subject to changes

depending on the final application and peripheral resources. Note that it was built using

robustness-oriented structures, thus preventing the speed or code size from being fully

optimized.

UM0324 Datasheet(PDF) 2 Page - STMicroelectronics

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