Microchip Technology Motor Control for AC Induction Motors

AC Induction Motor (ACIM) Overview

The AC Induction Motor (ACIM), sometimes called a squirrel cage motor, is one of the most popular motors used in consumer and industrial applications. Induction machines are the largest group of all industrial electrical machines, converting approximately 70-80% of all electrical energy into mechanical form. The devices have a very robust rotor construction, which makes them suitable for high-speed applications. With proper design, the devices have good overloading and field weakening characteristics.

The ACIM comprises a simple cage-like rotor and a stator containing three windings.

The changing field produced by the AC line current in the stator induces a current in the rotor, which interacts with the field and causes the rotor to rotate.

The rotor does not have any moving contacts, which eliminates sparking.

RECOMMENDED PRODUCTS

Microchip's award-winning 8-bit PIC® MCUs are an excellent solution for VF AC Induction motor control.

For 8-bit PIC MCUs for AC Induction Motor Control, Start with the: PIC16F917

For advanced closed-loop AC Induction motor control, Microchip’s dsPIC® family of digital signal controllers (DSCs) offers DSP performance and advanced motor control peripherals. For dsPIC DSCs for AC Induction Motor Control, Start with the: dsPIC33EP64MC206.

Microchip offers MIPS and ARM Cortex MCUs for high-performance, 32-bit motor control. These devices feature high-performance peripherals tailored for high-speed, closed-loop motor control.