[New Projects]

hi every one
i'm interested in communication branch so
I'm searching for new interesting projects in that branch
do u have list of that?
or can u guide me for useful sites
thanks for all

[Flashlight without batteries]

here is some pictures, see them ang give me your comments please

project.zip

[Flashlight without batteries]

if we want to use electromegnatic by shanking which produce ac current then by using bridge diode we convert it to dc current, then store this to capacitor, after that discharge the capacitor to lamp, is it will be working or not???
second which can we use to control the discharging of the capacitor??
aslo is the idea of radio wave applicable here. instead of electromegnatic

[Flashlight without batteries]

thank you very much for your point
but i don't want to use radio wave

i want to use i said before magnetic coil which produce ac current then by using bridge diodes (full wave rectifier) concert it to dc current, after that the dc is stored in a capacitor, then discharge it to some leds,

of course i use the current control to control this discharging, by my problem is how can avoid discharging in the opposite way of the daiodes?? :)which element can i use resistor or what???

[Flashlight without batteries]

sorry, i didn't det your point, would you explain more, how can i use transistor radio receiver circuit instead of coil as power source??
8)

[Flashlight without batteries]

thank you for youe attention,
really i found some clear picture about this project in this link

http://www.electro-tech-online.com/viewtopic.php?t=5998&postdays=0&postorder=asc&highlight=flashlight&start=30
i want u to read what was wrote there and give me the idea and the steps of design this project
and this is the main idea of the project
COIL -> Bridge Rectifier -> Capacitor -> Current control -> LED

[Flashlight without batteries]

thank you my dear
what you answer is exactly what I want
but unfort. i don't knew the circuit or how it is build?
if u knew something tell me please :)

[Flashlight without batteries]

hi all,
first of all i'm happy to become a member in this ammunity which is of course contains a lot of information about electronics, so i will be a good member and i will be helpful :)
second, I'm searching about project called flashlight with no batteries, if any one has some information or websites about it please tell me.
thanks :)