DSPIC33FJ12MC201TESS datasheet(155/304 Pages) MICROCHIP

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DS70265E-page 155

dsPIC33FJ12MC201/202

15.0

MOTOR CONTROL PWM

MODULE

The dsPIC33FJ12MC201/202 device supports up to

two dedicated Pulse Width Modulation (PWM)

modules. The PWM1 module is a 6-channel PWM

generator, and the PWM2 module is a 2-channel PWM

generator.

The PWM module has the following features:

• Up to 16-bit resolution

• On-the-fly PWM frequency changes

• Edge-Aligned 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 or BLDC

• Special Event comparator for scheduling other

peripheral events

• Fault pins to optionally drive each of the PWM

output pins to a defined state

• Duty cycle updates configurable to be immediate

or synchronized to the PWM time base

15.1

PWM1: 6-Channel PWM Module

This module simplifies the task of generating multiple

synchronized PWM outputs. The following power and

motion control applications are supported by the PWM

module:

• 3-Phase AC Induction Motor

• Switched Reluctance (SR) Motor

• Brushless DC (BLDC) Motor

• Uninterruptible Power Supply (UPS)

This module contains three duty cycle generators,

numbered 1 through 3. The module has six PWM

output pins, numbered PWM1H1/PWM1L1 through

PWM1H3/PWM1L3. 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.

15.2

PWM2: 2-Channel PWM Module

This

module

provides

additional

pair

complimentary PWM outputs that can be used for:

• Independent PFC correction in a motor system

• Induction cooking

This module contains a duty cycle generator that

provides two PWM outputs, numbered PWM2H1/

PWM2L1.

Note 1:

This data sheet summarizes the features

of the dsPIC33FJ12MC201/202 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 14. “Motor Con-

trol PWM”

(DS70187) of the “dsPIC33F/

PIC24H

Family

Reference

Manual”

which is available on the Microchip web-

site (www.microchip.com).

Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization”

this data sheet for device-specific register

and bit information.

DSPIC33FJ12MC201TESS Datasheet(PDF) 155 Page - Microchip Technology

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