Brushed DC Motor control by using PIC Microcontroller

Low-Cost Bidirectional Brushed DC Motor Control

Using the PIC16F684

INTRODUCTION

This application note discusses how to use the

Enhanced, Capture, Compare, PWM (ECCP) on the

PIC16F684 Microcontroller for bidirectional, brushed DC (BDC) motor

control. Low-cost brushed DC motor control can be

used in applications such as intelligent toys, small

appliances and power tools. The PIC16F684 takes

Microchip's Mid-Range Family of products to the next

level with its new ECCP peripheral. The ECCP

peripheral builds on the technology of the CCP module

with added features such as four PWM channels for

easy bidirectional motor control through the hardware.

This application note focuses on using the ECCP in

PWM mode using the full-bridge configuration. Using

the ECCP allows easy interfacing to a full-bridge

configuration for bidirectional BDC motor control.

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Brushed DC Motor control by using PIC microcontroller

I used PIC microcontroller to realize the control of BLDC motor. In the video, you can observe how the PID parameter affect the performance of motor. The different magnitudes (due to different PID parameters)

Efficient Brushless DC motor and Permanent Magnet Synchronous Motor Control

Demonstration of advanced sensorless algorithms such as field oriented control and trapezoidal control using sinusoidal drive for Brushless DC (BLDC) and Permanent Magnet (PM) Synchronous Motors

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Sensorless Brushed DC Motor control using a dsPIC Data and algorithm

This web seminar explains a sensorless Brushless Direct Current (BLDC) motor control algorithm, implemented using the dsPIC® digital signal controller (DSC).

Sensorless Brushed DC Motor control using a Majority Function Part 1 of 2



Sensorless Brushed DC Motor control using a Majority Function Part 2 pf 2




How a BLDC controller work - Giovanni Garraffa



Using the dsPIC30F for Sensorless BLDC Control
INTRODUCTION
This application note describes a fully working and
highly flexible software application for using the
dsPIC30F to control brushless DC (BLDC) motors
without position sensors. The software makes
extensive use of dsPIC30F peripherals for motor
control. The algorithm implemented for sensorless
control is particularly suitable for use on fans and
pumps. The program is written in C and has been
specifically optimized and well annotated for ease of
understanding and program modification.



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Sensorless BLDC Motor Control Using dsPIC30F2010
INTRODUCTION
This application note describes how to provide sensorless
BLDC motor control with the dsPIC30F2010
Digital Signal Controller. The technique used is based
on another Microchip application note: Using the
dsPIC30F for Sensorless BLDC Control (AN901).
This application note explains how to apply the
dsPIC30F2010 device to the hardware and software
described in AN901, which uses the dsPIC30F6010
device and dsPICDEM™ MC1 Motor Control Development
Board. The 80-pin dsPIC30F6010 has 144
Kbytes of Flash Program Memory, 8 Kbytes of RAM
available and abundant I/O. The 28-pin
dsPIC30F2010, on the other hand, has limited I/O, only
12 Kbytes of Flash program memory and 512 bytes of
RAM. As you can see, the resources are finite.
This application note prescribes changes to the hardware,
software and user interface described in AN901
to facilitate the easy transfer of the code to the
dsPIC30F2010 device.



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Brushed DC Motor Basics Video

Brushed DC Motor Basics Part 1 of 2
This video on brushed DC motor basics is part 1 of a four part series of web seminars that will go into motor control drive topologies, pulse width modulation ( PWM ), and the new enhanced PWM.



Brushed DC Motor Basics Part 2 of 2




Brushed DC Motor Fundamentals
INTRODUCTION
Brushed DC motors are widely used in applications
ranging from toys to push-button adjustable car seats.
Brushed DC (BDC) motors are inexpensive, easy to
drive, and are readily available in all sizes and shapes.
This application note will discuss how a BDC motor
works, how to drive a BDC motor, and how a drive
circuit can be interfaced to a PIC® microcontroller.

PRINCIPLES OF OPERATION
The construction of a simple BDC motor is shown in
Figure 1. All BDC motors are made of the same basic
components: a stator, rotor, brushes and a commutator.
The following paragraphs will explain each component
in greater detail.



SIMPLE TWO-POLE BRUSHED DC MOTOR
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AC or DC? Brushed or Brushless?

DC Motors provide high power in a small package. Oriental Motor manufacturers a wide range of AC and brushless DC (BLDC) products. So why choose one technology over the other? There are several key differences between the different technologies.

Motor Construction



Brushed DC motors depend on a mechanical system to transfer current, while AC and brushless DC motors use an electronic mechanism to control current. The brushed motors have a wound armature attached to the center with a permanent magnet bonded to a steel ring surrounding the rotor. As the brushes come into contact with the commutator the current passes through to the armature coils.
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