-
Posts
26 -
Joined
-
Last visited
Content Type
Profiles
Forums
Events
Posts posted by plouf
-
-
furthermore does exist any info of what all these (5 variable resistors) do in the final version ?
-
Hello
i have bought some generic IR LED for illumination, i forgot to ask of the exact code to check theri datasheet,
and wondering whats the general max power they work.
i found datasheet from 50 - to hundreds of mA, and i am confused !
i.e. LED are 20-25mA in general -
but its interesting on how do you actually can measure a LED light, if there is any more or less easy method with more or less accurancy
-
as i can see he supply a simple guide info and extra example premade connectors
for anybody to use....
well done gevv thanks :)
i use sprintlayout too and would be nice help to me too ;) -
LM138 supposed to have 0.0 - 0.2% diffirence with a worst case max 0.4
duno any other , however the bigger capacitor you add to input the more accurate output it gives ...
btw how can a circuit be so strict in power suply ?
most components are not so acurate anyway ?
it is a reference voltage ? -
firstly i heavily recoment too to use mozilla /firefox ;)
if you inist on IE however is this
http://support.microsoft.com/default.aspx?scid=kb;en-us;281679
the solution to your problem ? -
where are you all ?
btw since srv,irc,gr is not always the best for connections outside of greece
prefer one of these depending on your location
elli.irc.gr , virginia.irc.gr or jerseyirc.gr (USA)
phobos.irc.gr (UK)
styx.irc.gr (Germany)
cyprus.irc.gr (Cyprus) -
i found these
http://www.irf.com/product-info/datasheets/data/irf830.pdf
i i understand correct it can accept up to 4.5 Amps and 500Volts
and i make this quickly on proteus simulator i think it works OK
i.e max voltage on mosfet (on lamp off) = about 305V and with a lamp with a 450 ohm resistane needs 0.48 amps
( its a 100Watt lamp correct ?) -
hello i am selling my old sprint-layout ORIGINAL CD-rom
22 euro + shipment for outside European Union
it is a cheap and user-friendly pcb-designer for pc
generates gerber files , BMP,exelon
it has minor differnces with version 4
(autorouter in ver4 is not as in eagle. only connect one wire per time and not very smart)
more info http://www.abacom-online.de/uk/html/sprint-layout.html -
thanks for your notes
1) yes it has pulses its not alterante i miunderstood it last time
(my english are bad)
2) that i was asking from the first time . a mosfet inside thiese specs
3) its not the optocoupler i use and there is offcourse more circuit for led . its a AVR with dac and transistor controlling led
that reason 1 i wand to avoid sine generator (complicated)
4) hmmm another idea what about two SCR reverced intead of mosfet and no diode bridge , so half of period (positive) will heat SCR 1 ,negative period of pulse SCR 2 ?
better one ;)
any SCR with load of 1-2A in its specifications -
are you sure its a pn3906 and not 2n3906 ?
-
-
i was thinking about that in for lamp...
and since you confirm it i will go for "normal" ones
the idea is to use a diode bridge so no AC
the project i am working on supposed to dimm normal lamps so
an absolute maximun i guess 80 or 100 watt at 220v or less = about 0.5A if i am not wrong
i have think on connect it in series with lamp and via its gate
control the light -
hello
i am looking for a mosfet or any transistor able to drive about 1A
the idea is to use it powering a lamp does anyone knows any ?
and does anyone knows if there is anyware a table or somethink for transistors ,moseft,darliongton bipolar etc with specifications ? somethink like eca books ?
MCP2200 MICROCHIP USB 2.0 to UART Protocol Converter DDR
in Microelectronics
Posted
!!! MCP2200 is USB<> serial MCP6L04 is AMPLIFIER NOT EVEN CLOSE
there is NO direct drop in replacement for mcp2200 , may i ask why looking for equivelant, considering that MCP2200 is still under productio?
if you need some kind of equivelant you can compare with prolific 2303 / ftdiseries, and hundrent of others usb<>Serial//