energy scavenging for low-pwer radios

[galilu]

Hi

any one have an idea about this type of technology, converting vibration to energy.... :?:

 

[asena]

Check Berkley university department, they have good work on that.
This department has work on that, ive seen it, do search:

https://bwrc.eecs.berkeley.edu/

https://bwrc.eecs.berkeley.edu/Research/Pico_Radio/Default.htm

**broken link removed**


hope this is of some help

asena

 

[flatulent]

another method

There is another method that uses an antenna and a diode to rectify high RF fields. The output is used to power your radio. This was very popular back in the days of germanium transistors which could run on 0.4 V or so.

 

[galilu]

Hi
Thanks for reply, but I mean some deep information about MEMS used in this technology. I'm interested in "Scavenging" Only not the applications depend on it...

Mr. flatulent if you can give simple blocks for this idea it will be great, especially I did not know how antenna work in details, my first intuition that the Antenna used to generate the field would cause interference and distortion for the signal used in me radio, as it will cause harmful harmonics with aid of diode…. Please answer soon.

thanks

 

[flatulent]

long wire

The antenna was a very long wire. The power came from local MW broadcast transmitters.

The schematic was long wire - diode- capacitor - ground. You tapped the power from the top of the capacitor.

On the harmonics, yes, it would generate them. This was a child's toy and so perfect performance was not required.