DSPIC30F4012AT20ISLASHPF datasheet(93/236 Pages) MICROCHIP

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DS70135E-page 91

dsPIC30F4011/4012

15.0

MOTOR CONTROL PWM

MODULE

This module simplifies the task of generating multiple,

synchronized Pulse-Width Modulated (PWM) outputs.

In particular, the following power and motion control

applications are supported by the PWM module:

• Three-Phase AC Induction Motor

• Switched Reluctance (SR) Motor

• Brushless DC (BLDC) Motor

• Uninterruptible Power Supply (UPS)

The PWM module has the following features:

• 6 PWM I/O pins with 3 duty cycle generators

• Up to 16-bit resolution

• ‘On-the-Fly’ PWM frequency changes

• Edge and Center-Aligned Output modes

• Single Pulse Generation mode

• Interrupt support for asymmetrical updates in

Center-Aligned mode

• Output override control for Electrically

Commutative Motor (ECM) operation

• ‘Special Event’ comparator for scheduling other

peripheral events

• Fault pins to optionally drive each of the PWM

output pins to a defined state

This module contains 3 duty cycle generators, num-

bered 1 through 3. The module has 6 PWM output pins,

numbered PWM1H/PWM1L through PWM3H/PWM3L.

The six I/O pins are grouped into high/low numbered

pairs, denoted by the suffix H or L, respectively. For

complementary loads, the low PWM pins are always

the complement of the corresponding high I/O pin.

The PWM module allows several modes of operation

which are beneficial for

specific

power control

applications.

Note: This data sheet summarizes features of this group

of dsPIC30F devices and is not intended to be a complete

reference source. For more information on the CPU,

peripherals, register descriptions and general device

functionality, refer to the dsPIC30F Family Reference

Manual (DS70046). For more information on the device

instruction set and programming, refer to the “dsPIC30F/

33F Programmer’s Reference Manual” (DS70157).

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