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BLDC Motor Speed Control with RPM Display
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PROJECT DESCRIPTION

The main objective of this project is controlling speed of BLDC motors and displays its speed using an IR method of speed sensor mechanism. The DC motor has various application used in industries like in drilling, lathes, spinning, elevators and etc.

The speed control of the DC motors is very essential. This proposed system provides a very precise and effective speed control system. The user can increase or decrease the speed as per the requirement and the motor will run at that exact speed.

The project is divided into three stages: input, processing and output stage. The input stage consists of entering the required speed through switches. The processing stage provides RPM reference of the motor, by a shaft mounted IR sensor interfaced to the microcontroller in the circuit.

The microcontroller develops PWM pulses which are varied with switches to regulate the DC power to the motor such that the desired speed is achieved. The output stage uses a MOSFET being driven by the microcontroller output.

An 8051 family microcontroller is used with a set of switches to increase or decrease the speed of the BLDC motor. This speed is sensed by the sensors and is given to microcontroller which in turn displays it on a LCD display.The above operation is carried out by using one opto-isolator and a MOSFET for driving the brushless DC(BLDC) motor. IR sensing is used for getting the speed reference to the microcontroller.

PROJECT HIGHLIGHTS
Extensive audio-visuals available.
Branding-free material.
Call/mail for Tech Support from 10 am - 7 pm.
Pre-programmed Microcontroller.
All-inclusive solution kit.
Easy to use, Self-explanatory kit.
DC Motor Operation @ Desired Speed.
BLOCK DIAGRAM
Hardware Requirements
  • 8051 series Microcontroller
  • Level Shifter IC
  • GSM modem
  • LCD
  • LED
  • Crystal
  • Relay driver IC
  • Resistors
  • Capacitors
  • Diodes
  • Transformer
  • Voltage Regulator
  • Opto Isolator
  • Digital Energy Meter
  • Lamp
Software Requirements
  • Keil compiler
  • Language: Embedded C or Assembly
Q & A
Q:  How is the speed sensing taking place?
A:  Speed sensing is taking place by using IR sensor reflection arrangement.
Q:  Can I use bigger stepper/ induction motor to sense the speed?
A:  Yes any motor with reflecting surface from shaft can be used to sense the speed.
Q:  What is the role of EEPROM?
A:  EEPROM is used for data restoration or backup
Q:  How can I control the speed?
A:  One can control the speed using the push buttons provided in the project.
READ WHAT OTHERS HAVE SAID
Average Rating
 4.7/5
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Showing 3 of 3 reviews
Mayurnikhar, Maharashtra on 21st May, 2014, 02:03 PM

I saw the website and it was very easy to understand. U are giving correct solutions to the projects.I like my project very much and technical support was very good.

Askar, on 9th November, 2012, 04:58 AM

Recently I have purchased this project and done it successfully with the help of audio visuals and the documentation provided along with the project. Thanks to Edgefx.

Sankar, on 12th September, 2012, 11:32 AM

Edgefx support team is very good. They have helped me a lot in submitting my project work.

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