Energy harvesting IC...

[mtripoli]

Just saw this on the Linear Technology site and thought it was interesting... has many interesting application ideas...
http://cds.linear.com/docs/Datasheet/35881f.pdf

Mike Tripoli

P.S. I understand there is a new forum being worked out? Just a thought; maybe a category for posting new IC's and such posted outside of the "Adverts" section for "finds" like this one...

[Byte_Butcher]

Well that's an interesting device. "Free" electricity from vibrational noise...
Interesting enough that I tossed 2 of them into my Digikey cart for future experimentation.

Thanks for the link.


steve

[ScaleRobotics]

I would be interested to know how it works with some cheap piezo's. The piezo they specify in the data sheet costs $69.00. You could make a pretty nice solar/battery system for that price!

[mtripoli]

Well that's an interesting device. "Free" electricity from vibrational noise...
Interesting enough that I tossed 2 of them into my Digikey cart for future experimentation.

Thanks for the link.


steve

You beat me to it...


I think it's worth trying with some cheap piezo's. I have a bunch of the things around here...

Mike Tripoli

[Byte_Butcher]

Yeah, I'd try first with cheap piezos out of "noise making" devices.

It should be easy enough to connect a piezo to the 'scope and see what kind of voltages it produces when you whack it...

steve

[falingtrea]

Check out the alternate power sources section on page 16 of the data sheet. You can connect it directly to 110AC. Or harvest from a Flourescent light fixture, or a solar panel, or a thermoelectric device. Not just the Piezo.

[Byte_Butcher]

Yeah, it's got lots of interesting options. That's why I got 2 to play with.
I'll lay out a little circuit board for it and slip it into my order next time I need boards for something.

steve

[ScaleRobotics]

Here is an energy harvesting product that Sparkfun sells, based on the LTC3588. They have some lower cost piezo transducers. But I am sure a lot lower ratings. http://www.sparkfun.com/commerce/pro...oducts_id=9946



Features:

• 950nA Input Quiescent Current (Output in Regulation – No Load)
• 450nA Input Quiescent Current in UVLO\
• 2.7V to 20V Input Operating Range
• Integrated Low-Loss Full-Wave Bridge Rectifier Up to 100mA of Output Current
• Selectable Output Voltages of 1.8V, 2.5V, 3.3V, 3.6V
• High Efficiency Integrated Hysteretic Buck DC/DC
• Input Protective Shunt – Up to 25mA Pull-Down at VIN ≥ 20V
• Wide Input Undervoltage Lockout (UVLO) Range

Just as interesting to me was their mini 8 pin soic 4 volt solar cell. Pretty cute.
http://www.sparkfun.com/commerce/pro...oducts_id=9962