Datasheet

© 2011 Microchip Technology Inc. DS70149E-page 97
dsPIC30F5015/5016
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:
• Eight PWM I/O pins with four 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
• Duty cycle updates are configurable to be
immediate or synchronized to the PWM time base
This module contains four duty cycle generators, num-
bered 1 through 4. The module has eight PWM output
pins, numbered PWM1H/PWM1L through PWM4H/
PWM4L. The eight I/O pins are grouped into high/low
numbered pairs, denoted by the suffix H or L, respec-
tively. 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 “16-bit MCU and DSC
Programmer’s Reference Manual”
(DS70157).