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see transformers relly mobile
and now the answer is quite simple. I have too large current (30mA). with the given schematics, it seems that supports only 15-20mA. I have to make some parts changes :)
switching ic 220 vac
I undertood that the schematic posted in the first topic, is something "classic". I'm not interested in safety at all, I just want to have 5v from 220v AC, in the CHEAPEST possible way. the circuit will function in a plastic case, so there's noo need for separation and etc.
charger without transformer
I already said, I need 30mA. The circuit is for a sensor of movement. it's pretty expensive to build a switching source. that's why i need something simple like this. but still something functional...
:(
nokia charger schematic
I have this schematic diagram, I made it practically and is not working. I do not understand why, the circuit suposed to work with the sch, requests about 30mA, but the schematics offer only 3V. 7 days past and I don't know what to do... please give me some tips, or...
I have a 7474 configured as bistable, and I don;t know why the circuit is not working. the scheme is presented here: **broken link removed** , everything is ok, the 555 works correct, but whatever signal is entered in 7474, the circuit is not working. in my opinion the circuit diagram is not...
build a motion detector
does anybody have WRITTEN INFOS about building such a motion detector ? I've searched almost 200 pages on google and i did not find any schmatic diagram. please share this info if you have it!
thanks!
help about dmx512
first of all, hello boys & girls, this is my first post in this forum. i want to make an USB to DMX512 converter, and then i want to develop a software for controlling 8 scanners and a sroboscope in my club. I need a schematics of such kind of converter, and any code program...
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