View Single Post
Old 02-13-2013, 05:29 PM   #29
Penforhire
Wizard
Penforhire ought to be getting tired of karma fortunes by now.Penforhire ought to be getting tired of karma fortunes by now.Penforhire ought to be getting tired of karma fortunes by now.Penforhire ought to be getting tired of karma fortunes by now.Penforhire ought to be getting tired of karma fortunes by now.Penforhire ought to be getting tired of karma fortunes by now.Penforhire ought to be getting tired of karma fortunes by now.Penforhire ought to be getting tired of karma fortunes by now.Penforhire ought to be getting tired of karma fortunes by now.Penforhire ought to be getting tired of karma fortunes by now.Penforhire ought to be getting tired of karma fortunes by now.
 
Posts: 2,121
Karma: 7067396
Join Date: Nov 2007
Location: Southern California
Device: Kindle PW, PRS-650, iPhone 4, iPad 4
Hmm, You might be spot-on at 10 mW. I haven't found typical values for current draw by touch screen type. I see an example capacitive panel for sale at http://olink.en.alibaba.com/product/...uch_Panel.html claiming --
Deep sleep state current draw: 0.2 μA typical
Low power state current draw 0.8 mA typical
Active state current draw (continuous finger tracking): 8 mA typical

I imagine IR touchscreens use more energy (enough to create and detect many criss-cross IR beams).
Penforhire is offline   Reply With Quote