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PROJECT DESCRIPTION

The main goal of the project is to develop a speed-control system for a DC motor for all four quadrants with the help of a four-quadrant unit to control clockwise, counter clockwise, forward brake and reverse brake modes of a DC motor.

The four-quadrant operation of the DC motor provides ultimate solution for industries wherein motors are used as per the requirement of the application or load where they can rotate in clockwise, counter-clockwise, and also use and apply brakes immediately in both the directions.

The proposed system uses an H-bridge motor drive IC for controlling the DC motor from a corresponding switch used by the user for pressing. The four switches are connected to the circuit for controlling the movement of the motor. The 555 timers used in the project to develop the required pulses. The relays are used for changing the polarities of the motor as well as to brake the motor. In the regenerative mode, the current is applied to the circuit in such a way that a revere torque is produce.

The four-quadrant control of the DC motor is archived by the varying duty cycles and their changing polarity with the H-bridge IC by appropriate switch pressing. Alternative speed control feature can be achieved by push-button operation, but is not provided in this project.

This project in future can be improved by using higher-power electronic devices to operate high- capacity DC motors. Regenerative braking for optimizing the power consumption can also be incorporated.

×

The main goal of the project is to develop a speed-control system for a DC motor for all four quadrants with the help of a four-quadrant unit to control clockwise, counter clockwise, forward brake and reverse brake modes of a DC motor.

The four-quadrant operation of the DC motor provides ultimate solution for industries wherein motors are used as per the requirement of the application or load where they can rotate in clockwise, counter-clockwise, and also use and apply brakes immediately in both the directions.

The proposed system uses an H-bridge motor drive IC for controlling the DC motor from a corresponding switch used by the user for pressing. The four switches are connected to the circuit for controlling the movement of the motor. The 555 timers used in the project to develop the required pulses. The relays are used for changing the polarities of the motor as well as to brake the motor. In the regenerative mode, the current is applied to the circuit in such a way that a revere torque is produce.

The four-quadrant control of the DC motor is archived by the varying duty cycles and their changing polarity with the H-bridge IC by appropriate switch pressing. Alternative speed control feature can be achieved by push-button operation, but is not provided in this project.

This project in future can be improved by using higher-power electronic devices to operate high- capacity DC motors. Regenerative braking for optimizing the power consumption can also be incorporated.

PROJECT HIGHLIGHTS
Non-Microcontroller Project.
Simple Quadrant Operation w/o Programming.
Call/mail for Tech Support from 10 am - 7 pm IST.
Easy to use, Self-explanatory kit.
All-inclusive solution kit.
Extensive audio-visuals available.
Branding-free material.
Pre-programmed Microcontroller.
×
Non-Microcontroller Project.
Simple Quadrant Operation w/o Programming.
Call/mail for Tech Support from 10 am - 7 pm IST.
Easy to use, Self-explanatory kit.
All-inclusive solution kit.
Extensive audio-visuals available.
Branding-free material.
Pre-programmed Microcontroller.
BLOCK DIAGRAM
Hardware Requirements
  • Diodes
  • 555Timer
  • Relays
  • Transistors
  • Motor Driver IC
  • DC motor
  • Inverter IC
  • Push Buttons
  • Voltage Regulator
  • Transformer
×
  • Diodes
  • 555Timer
  • Relays
  • Transistors
  • Motor Driver IC
  • DC motor
  • Inverter IC
  • Push Buttons
  • Voltage Regulator
  • Transformer
Q & A
Q:  What are four quadrant operations?
A:  Four quadrant operation of DC motor means operating a DC motor in Forward, Reverse, Forward brake and Reverse brake.
Q:  Which microcontroller is used in this project?
A:  This project does not use any microcontroller. However refer the following links for microcontroller based projects.
228: http://www.edgefxkits.in/four-quadrant-dc-motor-speed-control-with-microcontroller
336: http://www.edgefxkits.in/four-quadrant-operation-of-dc-motor-remotely-controlled-by-android-applications
Q:  What is the rating of the DC motor used?
A:  High speed DC motor- 5 volt is used.
Q:  In which mode 555 timers is used?
A:  555 timers is used in Monostable Mode
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