DSPIC33FJ64MC508 Microchip Technology Inc., DSPIC33FJ64MC508 Datasheet - Page 165

• Manufacturer Part Number: DSPIC33FJ64MC508
• Description: High-performance, 16-bit Digital Signal Controllers
• Manufacturer: Microchip Technology Inc.

15.0
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:
• 3-Phase AC Induction Motor
• Switched Reluctance (SR) Motor
• Brushless DC (BLDC) Motor
• Uninterruptible Power Supply (UPS)
The PWM module has the following features:
• 8 PWM I/O pins with 4 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
• Output override control for Electrically
• ‘Special Event’ comparator for scheduling other
• Fault pins to optionally drive each of the PWM
• Duty cycle updates are configurable to be
© 2007 Microchip Technology Inc.
Note:
Center-Aligned mode
Commutative Motor (ECM) operation
peripheral events
output pins to a defined state
immediate or synchronized to the PWM time base
MOTOR CONTROL PWM
MODULE
This data sheet summarizes the features
of this group of dsPIC33FJXXXMCX06/
X08/X10 Motor Control Family devices. It
is not intended to be a comprehensive
reference source. To complement the
information in this data sheet, refer to the
“dsPIC33F
Manual”.Refer to the Microchip web site
(www.microchip.com)
dsPIC33F
chapters.
dsPIC33FJXXXMCX06/X08/X10 MOTOR CONTROL FAMILY
family
Family
reference
for
the
Reference
manual
latest
This module contains 4 duty cycle generators,
numbered 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,
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.
DS70287A-page 163