Microchip PIC18F4439 Manual

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 2003 Microchip Technology Inc. Advance Information DS39602C-page 1

PIC18F2539 MC EVAL KIT

Single phase induction motors are widely used in home

appliances, industrial fans, blowers, pumps, etc. When

these motors are connected to the specified supply,

they run at a constant speed. However, varying the

motor speed is desired in most of the applications.

Using power electronics and control systems, induction

motor speed can be varied. In addition to variable

speed, these drives are easy to control, provide energy

efficiency, and reduce noise.

Microchip Technology Inc. and Anacon Systems, Inc.

have jointly developed a motor control evaluation kit

used to demonstrate the PIC18F2539 motor control

microcontroller. The PIC18F2539 Motor Control

Evaluation Kit (PIC18F2539 MC Eval Kit) provides

great flexibility for the user to develop applications that

work directly with the motor control kernel that resides

in the PIC18F2539. The kit uses Programmable Motor

Control Processor Technology (ProMPT™). The

ProMPT board is a compact module containing propri-

etary circuits and a sophisticated firmware kernel

required for single phase induction motor control. The

motor control is based on open loop variable voltage

and variable frequency (VF) technology.

The PIC18F2539 MC Eval Kit includes the following

items:

• ProMPT Evaluation Board (EVB) with heat sink:

This is the single phase induction motor control

board.

• ProMPT-Eye board

• Control and display board

• Motor Control Evaluation Configuration CD:

- DashDriveMP™ V1.0 for Windows® 98,

Windows® Me, Windows® 2000 and

Windows® XP

- DashDriveMP User’s Guide

- PIC18F2539 Motor Control Evaluation Kit

User’s Guide

- Demo programs

• Input power cable

• Shaded pole induction motor

The DashDriveMP software is the Graphical User

Interface (GUI) that allows the user to configure the drive

parameters with ease and flexibility. The ProMPT EVB

with the ProMPT-Eye board, communicates with the

DashDriveMP software over the wireless media on infra-

red. The ProMPT EVB includes default motor parame-

ters and VF curves. The user can command a frequency

using the graphical interface and see the status on the

ProMPT EVB, such as motor current, bus voltage, and

heat sink temperature. The user can also modify the

parameters, including the acceleration rate, deceleration

rate and the VF curve using the DashDriveMP GUI.

The motor control circuit is built around Microchip's

FLASH microcontroller, PIC18F2539. This microcontrol-

ler has a powerful 8-bit RISC core with 24 Kbytes of on-

chip program memory, 1.4 Kbytes of data memory and

256 bytes of EEPROM. The peripherals include up to 5

channels of 10-bit Analog-to-Digital Converters (ADC),

PWMs, USART, I2C™, SPI™ and up to 21 digital I/Os.

The motor control kernel is embedded in the micro-

controller before shipping the kit. The user can develop

their own application around this kernel. A set of Appli-

cation Program Interface (API) methods are defined.

These methods are used to communicate between the

motor control kernel and application software. The appli-

cation program can be developed, debugged and exe-

cuted using MPLAB® IDE (Integrated Development

Environment). Microchip Technology also provides a low

cost In-Circuit Debugger, MPLAB® ICD 2, and the

C compiler, MPLAB® C18. The MPLAB ICD 2 debug-

ging tool allows the user to single-step, break and watch

required memory locations in the application program

while connected to the circuit. MPLAB ICD 2 can also be

used as a programmer for PICmicro® microcontrollers

with FLASH program memory.

FIGURE 1: PIC18F2539 PIN DIAGRAM

14 15

MCLR/VPP

RA0/AN0

RA1/AN1

RA2/AN2/VREF-

RA3/AN3/VREF+

RA4/T0CKI

RA5/AN4/SS/LVDIN

VSS

OSC1/CLKI

OSC2/CLKO/RA6

RC0/T13CKI

PWM2

PWM1

RC3/SCK/SCL

RB7/PGD

RB6/PGC

RB5/PGM

RB4

RB3

RB2/INT2

RB1/INT1

RB0

VDD

VSS

RC7/RX/DT

RC6/TX/CK

RC5/SDO

RC4/SDI/SDA

PIC18F2539

PIC18F2539 Motor Control Evaluation Kit

PIC18F2539 MC EVAL KIT

DS39602C-page 2 Advance Information  2003 Microchip Technology Inc.

Most of the I/O pins are brought out to the I/O expander

connector on the ProMPT EVB board. This enables the

user to develop hardware required for the application.

FIGURE 2: HARDWARE BLOCK DIAGRAM

Note: This control is suitable for Permanent

Series Capacitor (PSC) and shaded pole

single phase induction motors, to 230 volts

and 5 amps. Connecting other types of

motors may damage the PIC18F2539 MC

Eval Kit, the motor, or both. Additionally,

the drive may not function as intended.

Control

and

Display

Board

PIC18F2539 IGBT

Driver

ProMPT-Eye

Connector

ProMPT-Eye

Board

I/O Voltage

Monitor

Current

Monitor

IGBT

H-Bridge

Motor

PWM1

PWM2

+15V

+5V

GND

+18V

GND

MOV

1-Phase

AC Input

Gate

Drives

SMPS

ProMPT™ EVB

Expander

Isolated

Produkt Specifikationer

Mærke:	Microchip
Kategori:	Ikke kategoriseret
Model:	PIC18F4439

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