Piezoeletric energy

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Hey freaks...

Last month we receive some piezoelectric and we performed some tests to it work as vibration sensor.

Then I started to think about some application using the piezoelectric as a generator. Does anyone has some experience on it, like some idea about the piezo capacity?

Something that I noted was that the piezo generate more energy when some force is above it than when it is fixed in a vibration local.

Regards,

Bruno Muswieck

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"Experience is what enables you to recognise a mistake the second time you make it."

"Good judgement comes from experience.  Experience comes from bad judgement."

"Wisdom is always wont to arrive late, and to be a little approximate on first possession."

"When you hear hoofbeats, think horses, not unicorns."

"Fast.  Cheap.  Good.  Pick two."

"We see a lot of arses on handlebars around here." - [J Ekdahl]

 

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PZT are often used as igniters for fire starters or gas grills.

 

I have designed PZT  a driver circuits for fuel injection, it recovers energy from the discharge, from the "open",  during the "close", significantly increasing driver efficiency.

 

I have thought a PZT transformer (power converter), would be small and neat, but too expensive and complex.

It all starts with a mental vision.

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Linear Technology have some devices for converting piezo energy into usable battery capacity. Had a quick look in my LT magazine back issues but haven't found it.

 

Ross McKenzie ValuSoft Melbourne Australia

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Advanced Linear Devices has some modules for likewise and maybe some devices in-work.

Advanced Linear Devices

Energy Harvesting for a Greener Environment

http://www.aldinc.com/pdf/EnergyHarvestingForAGreenerEnvironment.pdf

"Dare to be naïve." - Buckminster Fuller

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Linear Technology's piezoelectric energy harvesting solution:  http://www.linear.com/product/LT...