Breaking News
Design How-To

Ultralow-voltage energy harvester powers wireless sensors from waste heat (Part 1 of 2)

NO RATINGS
More Related Links
View Comments: Newest First | Oldest First | Threaded View
_hm
User Rank
CEO
re: Ultralow-voltage energy harvester powers wireless sensors from waste heat (Part 1 of 2)
_hm   1/17/2011 3:06:08 AM
NO RATINGS
Will Apple's iPhone, iPAD employ this device to harvest energy to power thier devices? Also, since energy level is at very low level, can you integrate transformer and may be some capacitors in this device so that we get truly magic device?

Simpleton
User Rank
Rookie
re: Ultralow-voltage energy harvester powers wireless sensors from waste heat (Part 1 of 2)
Simpleton   1/12/2011 9:07:34 AM
NO RATINGS
The sratup current required is in mA. I wonder if any small size TEG can generate this much current. I once tried to prepare a prototype for ambient light harvesting with this chip but could not succeed due to loading effect. Instead I built a simple circuit to charge the bulk cap and swicth the enegy to main circuit when sufficient to drive the it. David it would be appreciable if you can share some design idea or proven circuit based on LTC3108 for harvesting ambient light with PV cells.

Aleksandartomic
User Rank
Rookie
re: Ultralow-voltage energy harvester powers wireless sensors from waste heat (Part 1 of 2)
Aleksandartomic   1/11/2011 9:14:59 AM
NO RATINGS
Years ago instead make math calculation, I took peltier and heated one side while other has been cooled by running water. Energy released by this simple test, shows that peltier can be quite useful using as a solar power. Cooled water can circulate in the earth (rather then taking from the tap) and hot side of peltier can be painted in to black faced to the Sun inside greenhouse. I wander... can someone make some rough calculation of energy harvested using peltier as a solar generator on the roof of the average house? (green house - peltiers – cold water from the earth). Who ever do this for me can spare my life, as roof is quite dangerous place to make next “simple” test. Best Regards Alex

_hm
User Rank
CEO
re: Ultralow-voltage energy harvester powers wireless sensors from waste heat (Part 1 of 2)
_hm   1/9/2011 5:16:49 AM
NO RATINGS
This is a unique product and has vast potential for novel applications. However, I have two things to comment. First, in the introduction, you stressed for application where servicing is costly, dangerous.... However, in example given at the end, you give simple application of sensor attached to machinery. Is it possible to give more appripriate example for this type of product? Also, you have not compared it with other options of enrgy harvesting and why this approach my be better?

Flash Poll
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Times on Twitter
EE Times Twitter Feed
Top Comments of the Week