Contents: o Introduction. o Outline of the project. o Parts of the device.o Principle of operation.o Detailed description.o Usage and implementation.o Advantages and limitations.

POWER GENERATING SHOE

INTRODUCTION

What is a piezoelectricity and piezoelectric material ?• Piezein is Greek for stress or squeeze.• Piezoelectricity is the electric charge that accumulates in certain

solid materials in response to applied mechanical stress.• Piezoelectric materials are ceramics ,crystal or group of crystals

that generate electricity when they are stressed.Main types include:• Crystals (eg., quartz).• Ceramics(eg., lead zirconite titanate).

Piezoelectric transducer- Converts mechanical stress to electrical energy.

Power bank- used to store electric charges and supply it to devices.

Rectifier – Used to convert AC to DC. Wires- Wires are used for electrical connections.

Parts of the device

Piezoelectric shoe works on the principle of conversion of change in stress into electrical energy.

When pressure acts on the piezoelectric material, it causes deformation, which causes a shift in the charge. When the pressure/mechanical energy is removed, the charge will return to normal.

The generated electrical energy will then be used as a source to produce voltage of the battery cell phone charger, mini power bank, etc.

Working Principle

Rectifier converts AC into DC. Four diode bridge rectifier is used to convert AC to

full wave DC. Capacitors can be used for smoothening the output signal

Rectifier

Advantages: Lesser parts and simple in fabrication. Low cost power generating accessory. They are eco friendly. Unaffected by external electromagnetic field.

Limitations: Comparatively low power generation. Input to output ratio is less. Cannot harvest mechanical energy wasted in the form of heat

energy.

ADVANTAGES AND LIMITATIONS

Materials Cost

Shoe 500 to 700.

Piezoelectric transducer

USB Power bank 240

Rectifier diode

Connecting wires

Estimated cost

Sole power Encyclopedia Wikipedia

Literature survey