This document describes a device that generates electrical power from footstep motion. It uses a rack and pinion gear system attached to shoes to convert vertical foot motion into rotational motion of a DC gear motor. The motor's output is fed to a converter circuit board containing a bridge rectifier, capacitors, and voltage regulator. This regulates the output to 5V DC suitable for charging devices via a USB port on an attached power bank. The system aims to allow powering devices through normal walking or running activity.

2.  In this project we are generating electrical power as
non-conventional method by simply walking or running
on the foot step. Non-Conventional energy system is very
essential at this time to our nation.
 Non-Conventional energy using foot step is converting
mechanical energy into the electrical energy.
 A simple mechanical gear system is used to generate
mechanical motion from footstep, and further converting it
to a charging point.

3. I. The dependency on Smart gadgets is increasing,
inversely number of ports for charging are fallingshort.
&
II. As we are allstuckinto Gadgets,
WalkingHabits in our routine hasdecreased

5. S. No. COMPONENTS Quantity
1 Spur Gear 25 teeth, 25mm 2
2 Rack Gear 2
3 DC gear Motor 2
4 Metal Spring 1
5 Bridge Rectifier 1
6 Paper Capacitor 1
7 Electrolytic Capacitor 2
7 Voltage Regulator 7805 1
8 Connectors 1
9 Power Bank 1

6. A Rack and Pinion is a type of linear
actuator that comprises a pair of gear which convert
rotational motion into linear motion.
 A circular gear called "the pinion" engages teeth
on a linear gear bar called "the rack“.
 Rotational motion applied to the pinion causes
the rack to move relative to the pinion, thereby
translating the rotational motion of the pinion into
linear motion.

7.  A geared DC Motor has a gear assembly
attached to the motor.
 The speed of motor is counted in terms of
rotations of the shaft per minute and is termed
as RPM.
 The gear assembly helps in increasing the
torque and reducing the speed.

8.  Bridge Rectifiers are the circuits which convert
alternating current (AC) into direct current (DC)
using the diodes arranged in the bridge circuit
configuration.
 They usually comprise of four or more number
of diodes which cause the output generated to
be of the same polarity irrespective of the
polarity at the input.
GD W10M
Bridge Rectifier
Circuit Diagram

9. Electrolytic Capacitor : Ceramic Capacitor:
 They are used in circuits where high
currents or low frequencies are involved.
 Mainly used for storing up charge
 They are used in circuits which
circumvent high frequency signals to
ground.
 Mainly used in Eliminating Noise
elements

10. Pin
No
Function Name
1 Input voltage (5V-18V) Input
2 Ground (0V) Ground
3 Regulated output; 5V (4.8V-5.2V) Output
• A Voltage Regulator is a semiconductor device that
converts an input DC voltage to a fixed output DC voltage.
 78XX series of IC regulators is representative of three
terminal devices that are available several fixed positive
output voltages making them useful in a wide range of
applications.
 It has three terminals labeled as input, output, ground. The
last two digits designate the output voltage.
For example, IC 7805 is a +5v voltage regulator.
Circuit Diagram
IC 7805
Table: Pin descriptions of 7805

12. Mechanical
System
Convertor Circuit

13. • Rack and Pinion System • DC Gear Motor • Metal Spring
This is the system being externally attached to the your footwear.
Basically, it is using foot’s vertical to-and-fro motion, to rotate Gear
Motor attachment.
The Gear restrain back with the help of a Spring.
 The output from the DC motor is fed to Convertor Circuit.

14. This system is been embedded
into PCB.
It consists of :
 Bridge Rectifier :
It is converting the Alternating
current to pulsating Direct Current.
 Electrolytic Capacitor
It is used for Smoothening the pulsating DC to DC
 Ceramic Capacitor
For the cancellation of noise.
 Voltage Regulator 7805
It is converting the output from above mechanism i.e. about 12V to constant 5V
Circuit Diagram on PCB

15. +12 V
-12 V

16. Output from mechanical System :
Output from Bridge Rectifier :
Output from Electrolytic Capacitor :

17. Output from Voltage Regulator :
5 V , 100mA
Power Bank