DSPIC30F4012 datasheet(97/238 Pages) MICROCHIP

97 / 238 page

DS70135G-page 97

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,

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 “16-bit MCU and DSC

Reference Manual” (DS70157).

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