1. APPLICATION OF ELECTRIC & ELECTRONIC
DRIVES
IN
ROBOTICS
Present by:-
Ashutosh Pd.
Shahi
Branch-Elect. Engg.
Reg.-1001211216Guided by Dr.-D. P. Das

2. CONTENTS
 Introduction
 History
 Electric Drives
• DC SERVO MOTOR
• DC STEPPER MOTOR
• BLOCK DIAGRAM OF ELECTRIC DRIVE
 Electronic Drives
 Application
 Conclusion

3. Robotics is the branch of technology that deals with
the design, construction, operation, and application
of robots, as well as computer systems for their
control, sensory feedback and information
processing.
These technologies deal with automated machines
that can take the place of humans in dangerous
environments or manufacturing processes, or
resemble humans in appearance, behaviour, and/or
cognition.

4. HISTORY
Elektro(1939)Westinghouse Electric
Electro is the nickname of a robot built by the Westinghouse Electric corporation
between 1937-1939. it could be walk by voice command, speak about 700words,
smoke cigarettes and move his head and arms. Elektro’s body consisted of a steel
gear, cam and motor skeleton covered by an aluminum skin.

5. ELECTRIC DRIVES
 The electric drive systems
are capable of moving
robots with high power or
speed.
• This types of robotics
operation can be done by
either DC servo motors or
DC stepping motors.
• The electric drive system
will be perfect for small
robots and precise
applications. Most
importantly, it has got

6. DC SERVO MOTOR
A servomotor is a rotary
device that allows for precise
control of angular
position, velocity and
acceleration.
 It consists of a motor coupled
to a sensor for position
feedback.

7. INTERNAL VIEW OF DC SERVO MOTOR

8. DC STEPPER MOTOR
A stepper motor is a brushless
DC electric motor that divides a
full rotation into a number of
equal steps.
 The motor's position can then
be commanded to move and
hold at one of these steps
without any feedback sensor.
 It is an open-loop controller.

9. INTERNAL VIEW OF DC STEPPER MOTOR

10. BLOCK DIAGRAM OF AN ELECTRIC DRIVES

11. POWER REQUIREMENT
 In general these type of electric drives
require 12V or 24V for its operation
 We can convert the 220V,50Hz ac into dc by
the help of rectifier
 The speed of these drive can be control by
PWM control
 IC 7805 use for conversion of voltage range
9-38v to 5v for electronic equipment.

12. MICRO CONTROLLER ATMEGA 32
An integrated circuit, or
IC, is small chip that can
function as an
amplifier, oscillator, timer, mi
croprocessor or even
computer memory.
 It is build from
semiconductor
materials, normally Silicon.
 In present scenario an IC
contain 1billions of transistor.

13. BLOCK DIAGRAM AND SPECIFICATION OF ATMEGA 32
Parameter value
Vcc 4.5-5v
Pin 40
RAM 32Kb
Frequency 16 MHz
CPU 8-bit AVR
Max I/O Pins 32
Temp. -40 to 85
CLK 3
EPROM 1B

14. SENSORS
A mechanical device sensitive to light, temperature, radiatio
n level etc, that transmits a signal to a
measuring or control instrument.
Temperature
sensor Light
sensor
Sound
sensor
Object
sensor

15. LED SENSOR
Fig.1 Fig.2
Fig.3 Fig.4

16. APPLICATION
 Weight lifting
 Protection
 Medical operation
 Welding
 Work in space
 Inspection
 Becoming a hero in movies
 Military

17. LINE FOLLOWER ROBOT
ATMEGA 32
LED
SENSOR
L293D IC7805

18. CONCLUSION
 The robots are an amazing technological advancement
 This will allow people save their time and precise life in a
more productive manner
 The robots provide a number of positive contributions to
human beings
 The degree of accuracy is very high

20. ACKNOWLEDGEMENTS
 http://en.wikipedia.org
 http://www.slideshare.net/
 https://www.google.co.in/