dspic33fj128mc204 Microchip Technology Inc., dspic33fj128mc204 Datasheet - Page 207

• Manufacturer Part Number: dspic33fj128mc204
• Description: High-performance, 16-bit Digital Signal Controllers
• Manufacturer: Microchip Technology Inc.

16.0
The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/
X04, and dsPIC33FJ128MCX02/X04 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 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 configurable to be immediate
© 2009 Microchip Technology Inc.
Note:
Center-Aligned mode
Commutative Motor (ECM) operation or Brushless
DC (BLDC)
peripheral events
output pins to a defined state
or synchronized to the PWM time base
MOTOR CONTROL PWM
MODULE
This data sheet summarizes the features
of
dsPIC33FJ64MCX02/X04,
dsPIC33FJ128MCX02/X04
devices. It is not intended to be a
comprehensive reference source. To com-
plement the information in this data sheet,
refer to the “dsPIC33F Family Reference
Manual”, Section 14. “Motor Control
PWM” (DS70187), which is available from
the
chip.com).
Microchip
the
dsPIC33FJ32MC302/304,
website
(www.micro-
families
and
Preliminary
of
16.1
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.
16.2
This
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.
module
PWM1: 6-Channel PWM Module
PWM2: 2-Channel PWM Module
provides
an
additional
DS70291C-page 205
pair
of