jadonvikas109[at]gmail.com
sir pls snd me all components details and pdf on shoes charger...

piezoelectric shoe charger

Shoe Charger is a popular project for middle school, high school and college students, and also for hobbyists. This is my best try. I encountered lots of challenges throughout this science project. I added some of my failed experiments at the end of my written project.

At the beginning of the project, I was hoping to invent a shoe charger to charge a smart phone. After many failed tries, my new goal was changed to turn on the smallest ipod for 2 seconds. Nevertheless, it was a fun project and I learned a lot from it.

Could walking or running generate enough energy to power your cell phone or GPS device? Dr. Ville Kaajakari has developed an innovative piezoelectric generator prototype small enough to be embedded in the sole of a shoe that's designed to produce enough power to operate GPS receivers, location tags and eventually, even a cell phone.

Harnessing kinetic energy is not without its challenges because it’s difficult to generate enough energy to power today’s applications. That’s where Kaajakari's invention - which has recently been featured in the MEMS Investor Journal - comes in.

The shoe generator uses a low-cost polymer transducer with metalized surfaces for electrical contact. Traditionally, ceramic transducers are hard and therefore unsuitable to use in shoes but Kaajakari's generator is soft as well as strong so it could replace a normal heel shock absorber without loss to the user experience.

According to Kaajakari, the new voltage regulation circuits can convert the piezoelectric charge into a usable voltage and combined with the polymer transducer give a time-averaged power of two milliwatts per shoe on an average walk - that’s comparable to lithium coin/button cells and enough to power running sensors, RF transponders and GPS receivers.