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HRPWM with Fine Edge

Placement

dsPIC33/PIC24 Family Reference Manual

Introduction

Note:  This family reference manual section is meant to serve as a complement to device data sheets. Depending on

the device variant, this manual section may not apply to all dsPIC33 devices. Please consult the note at the

beginning of the chapter in the specific device data sheet to check whether this document supports the device you

are using.

Device data sheets and family reference manual sections are available for download from the Microchip Worldwide

Website at: www.microchip.com.

This document describes the features and use of the High-Resolution Pulse-Width Modulated (PWM) with Fine Edge

Placement. This flexible module provides features to support many types of Motor Control (MC) and Power Control

(PC) applications, including:

•AC-to-DC Converters

•DC-to-DC Converters

•AC and DC Motor Control: Brushed DC, BLDC, PMSM, ACIM, SRM, Stepper, etc.

• Inverters

•Battery Chargers

•Digital Lighting

•Power Factor Correction (PFC)

High-Level Features

•Up to Eight Independent PWM Generators, each with Dual Outputs

•Operating modes:

–Independent Edge PWM mode

–Variable Phase PWM mode

–Independent Edge PWM mode, Dual Output

–Center-Aligned PWM mode

–Double Update Center-Aligned PWM mode

–Dual Edge Center-Aligned PWM mode

•Output modes:

– Complementary

– Independent

– Push-Pull

•Dead-Time Generator

•Dead-Time Compensation

•Leading-Edge Blanking (LEB)

•Output Override for Fault Handling

•Flexible Period/Duty Cycle Updating Options

•PWM Control Inputs (PCI) for PWM Pin Overrides and External PWM Synchronization

•Advanced Triggering Options

•Combinatorial Logic Output

© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM)DS70005320D-page 1

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