2004 Microchip Technology Inc.
Advance Information
DS70119B-page 85
dsPIC30F6010
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:
• 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
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
This module contains 4 duty cycle generators, num-
bered 1 through 4. The module has 8 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.
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