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Microchip Inte kategoriserad dsPIC33EP128GS805

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Sida 1/130

 2008-2017 Microchip Technology Inc. DS70000323H-page 1

HIGHLIGHTS

This section of the manual contains the following major topics:

1.0 Introduction ....................................................................................................................... 2

2.0 Features............................................................................................................................ 3

3.0 Control Registers .............................................................................................................. 4

4.0 Architecture Overview..................................................................................................... 34

5.0 Module Description ......................................................................................................... 37

6.0 PWM Generator .............................................................................................................. 48

7.0 PWM Triggers ................................................................................................................. 62

8.0 PWM Interrupts............................................................................................................... 69

9.0 PWM Operating Modes................................................................................................... 70

10.0 PWM Fault Pins .............................................................................................................. 75

11.0 Special Features ............................................................................................................. 87

12.0 PWM Output Pin Control................................................................................................. 95

13.0 Immediate Update of PWM Duty Cycle .......................................................................... 98

14.0 Power-Saving Modes...................................................................................................... 99

15.0 External Control of Individual Time Base(s) (Current Reset Mode) .............................. 100

16.0 Application Information ................................................................................................. 101

17.0 PWM Interconnects with Other Peripherals .................................................................. 115

18.0 Related Application Notes............................................................................................. 118

19.0 Revision History............................................................................................................ 119

High-Speed PWM Module

dsPIC33/PIC24 Family Reference Manual

DS70000323H-page 2  2008-2017 Microchip Technology Inc.

1.0 INTRODUCTION

This section describes the High-Speed PWM module and its associated operational modes. The

High-Speed PWM module supports a wide variety of PWM modes and is ideal for power

conversion applications. Some of the common applications that the High-Speed PWM module

supports are:

• AC-to-DC Converters

• Power Factor Correction (PFC)

• Interleaved Power Factor Correction (IPFC)

• Inverters

• DC-to-DC Converters

• Battery Chargers

• Digital Lighting

• Uninterruptable Power Supply (UPS)

• AC and DC Motors

• Resonant Converters

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/PIC24 devices.

Please consult the note at the beginning of the “High-Speed PWM” chapter in the

current 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 Web site at: http://www.microchip.com.

 2008-2017 Microchip Technology Inc. DS70000323H-page 3

High-Speed PWM Module

2.0 FEATURES

The High-Speed PWM module consists of the following major features:

• Up to Nine PWM Generators

• Two PWM Outputs per PWM Generator

• Individual Time Base and Duty Cycle Control for Each PWM Output

• Duty Cycle, Dead Time, Phase Shift and a Frequency Resolution of 1.04 ns

• Independent Fault and Current-Limit Inputs for All PWM Outputs

• Redundant Output

• True Independent Output

• Center-Aligned PWM mode

• Output Override Control

• Special Event Trigger

• Prescaler for Input Clock

• Dual Trigger to Analog-to-Digital Converter (ADC) per PWM Period

• PWM

L and PWM

H Output Pin Swapping

• Independent PWM Frequency, Duty Cycle and Phase-shift Changes

• Leading-Edge Blanking (LEB) Functionality

• PWM Capture Functionality

• Up to Two Master Time Bases

• Dead-Time Compensation

• PWM Chopping

• Support for Class B Protection of Fault Control Registers

Note: Duty cycle, dead time, phase shift and frequency resolution is 8.32 ns in Center-Aligned

PWM mode.

Produktspecifikationer

Varumärke:	Microchip
Kategori:	Inte kategoriserad
Modell:	dsPIC33EP128GS805

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