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ATAVRMC200 - AC Motor Control

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The ATAVRMC200 is an evaluation kit dedicated to asynchronous AC motor control, using various sensors for regulation. The kit includes an evaluation board and a demonstration firmware. Supporting 110-230V motors, the kit also allows evaluation of BLDC motors using the AT90PWM3/3B AVR microcontroller. An additional asynchronous AC motor can be ordered from Atmel (ATAVRMC201) allowing for a comprehensive and ready-to-use evaluation. The ATAVRMC201 is a 3-phase, 4-pole motor manufactured by Almo (ref.: MTA56G4) and features 90W@230V with 1320RPM speed.
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ATAVRMC200 AC Induction Motor Control Evaluation Kit (Flyer, 2 pages, revision B, updated 12/07)

ATAVRMC200 Hardware Guide - Schematics (User Guide, 4 pages, revision B, updated 06/05)

ATAVRMC200 Hardware User Guide (User Guide, 37 pages, revision A, updated 05/06)
This document describes the board included in the ATAVRMC200 starter kit dedicated to AT90PWM3.

AVR494: AC Induction Motor Control Using the constant V/f Principle and a Natural PWM Algorithm (Application Note, 12 pages, revision A, updated 12/05)
Induction motors can only run at their rated speed when they are connected to the main power supply. This is the reason why variable frequency drives are needed to vary the rotor speed of an induction motor. The aim of this application note is to show how these techniques can be easily implemented on a AT90PWM3, an AVR RISC based microcontroller dedicated to power control applications.

AVR495: AC Induction Motor Control Using the Constant V/f Principle and a Space-vector PWM Algorithm (Application Note, 11 pages, revision A, updated 12/05)
In a previous application note [AVR494], the implementation on an AT90PWM3 of an induction motor speed control loop using the constant Volts per Hertz principle and a natural pulse-width modulation (PWM) technique was described. A more sophisticated approach using a space vector PWM instead of the natural PWM technique is known to provide lower energy consumption and improved transient responses. The aim of this application note is to show that this approach, though more computationally intensive, can also be implemented on an AT90PWM3.

AT90PWM2 AT90PWM2B AT90PWM3 AT90PWM316 AT90PWM3B