How do you define the best possible circuit for RF wireless power transfer in use for embedded devices?
832051
I found, YOU read. \nHope it helps.
565166
Very briefly, antena, radio, router, power supply, processor, firmware/software.  A little more detailed... The antenna receives and transmits RF energy.  The power supply typically converts your 120VAC and provides the needed DC power levels to the internal components.  The 802.11a/b/g radio itself consists of various sub-components such as mixers, filters, oscillators, detectors and the electronics that connect them all.  The router processor consists of whatever router chipset is in use and implements TCP/IP and Ethernet.  There will also be some on-board flash (for saving image and config) and DRAM.  There will also be firmware/drivers for the 10/100 RJ45 physical interface for example.  There is also other firmware/software that gets loaded such as a management interface so you can configure it.  There may also be an internal POST component for bootup diagnostics.
186229
Here are some sites that may help.  Both have circuit examples utilizing LVDT's.  Hope this helps.
1125096
Check RF cafe and quizzes under the site map. Also check out the free tests on ETA international these are geared for electronic technicians but should give a good review of fundamental electronic components. \n\nEnjoy.
19361
Logitech! Get an RF one.
495154
a wireless communication standard.
480313
Monolithic microwave amplifiers are widely used in the industry for signal amplification. The majority of these amplifiers are specified to operate with fixed current. In the real world of low voltage supplies, fixed current is difficult to realize. Normally, a constant-current source is approximated by a voltage source, RF choke and a resistor.\n\nthe typical specifications of these amplifiers. One significant feature is that they can be operated over a wide voltage range, 2.8 to 5V. This makes them useable for battery powered applications\n\n\n\nhttp://360.yahoo.com/jcbroogley
948090
They send a radio frequency.  Max distance depends on circuit design, battery strength, intervening obstacles, and so on.  Anywhere from 15 to 30 feet.
824800
You can use an integrated circuit, like LTC6906 from Linear Technology which goes up to 1MHz at 2.25 - 5VDC supply,\nsee:  http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1010,C1096,P9790,D6998\nAlternative: MAX5094A by Maxim,  see:  http://www.maxim-ic.com/quick_view2.cfm/qv_pk/5017\nI didn't have the time to check the output power, but if it's not enough, a simple emitter stage transistor will do.
854524
Radio frequency, or RF, refers to that portion of the electromagnetic spectrum in which electromagnetic waves can be generated by alternating current fed to an antenna
230874
Hey, ive built some circuits....check out:\nwww.techlib.com\nwww.home.maine.rr.com\nwww.hanssummers.com\nwww.angelfire.com\nif they don't work try http:\nthey are all good website to build transmitters/recievers.......or google it
780693
MOOTS is the new theoretical wireless electricity. To research, try this site: http://www.moots.com or click on the site below for an article and more links.
381325
http://www.pentest.co.uk/documents/bt_dongle_mod/bt_dongle_mod.html
905192
It would help if you were more careful in your wording.\n\n"How would one design a snubber circuit for clamping in a flyback converter used as a 250 watt battery charger? The flyback converter switching frequency is 50 KHz and the max duty cycle is 45% on.", is my best guess at what you meant to say.\n\nThere is information on Wikipedia regarding flyback converters:\nhttp://en.wikipedia.org/wiki/Flyback_converter\n\nI am guessing that the snubber would be a zener diode and resistor in series, connected in parallel to the output terminals.\nRather than calculate the value of these components now, I would like to hear more from you regarding the location of the snubber in your circuit...\n\nHope this helps!
274304
Here's a good source of info:\nhttp://ece-www.colorado.edu/~kuester/Coax/connchart.htm
253517
should be able send signals with minimum (atenuations)loss of signals;\nshould have a high transmission speed-Bandwith;\nAccessibility and reparable;\nproduces what enters from the begining at the end;
225569
http://www.electronic-circuits-diagrams.com/remotecontrolsimages/remotecontrolsckt5.shtml\n\n A circuit of a remote control unit which makes use of the radio frequency signals to control various electrical appliances using DTMF (dual-tone multi frequency)technology. \n\nClick on the green link in the page to see the circuit diagram. Hope I helped.