DSPIC30F2010 datasheet(83/204 Pages) MICROCHIP

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DS70118H-page 83

dsPIC30F2010

14.0

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:

• Six PWM I/O pins with three 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

•FLTA pin to optionally drive each of the PWM

output pins to a defined state

This module contains three duty cycle generators,

numbered 1 through 3. The module has six 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.

A simplified block diagram of the Motor Control PWM

modules is shown in Figure 14-1.

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).

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