[RESISTOR TO VOLTAGE CONVERTOR]

HI MP,

I did it by OP_AMP .
Is there any IC that it can do all of this by own?

Thank you,

[RESISTOR TO VOLTAGE CONVERTOR]

HI ALL,

I have a device that The voltage of input is 0 (v) till 12.5 (v) & current output is 4-20 ma.
So I need a schematic of resistor to voltage convertor so that in spite of 0 (ohm) it has 0 (v) & in spite of 900 (ohm) , it has 12.5 (v) .

THANK YOU,


abt4s

[computer power supply]

Hi. 
I need a schematic and pcb of computer power supply that it should have 400 or 450 watt .
thank you

[wireless transmit & receive data]

Hi.
I need a schematic for transmit & receive data that it should be wireless .
Frequency is not very important but it is better that the frequency won't be in FM band.
baud rate is among 600 till 19200 and I am going to use data from IC in AVR series or RS232

email :[email protected]

[wireless transmit & receive data]

hi my friendes
thank for your replies
dear Staigen . i need radio , a simple board  and range should be 400m or upper.

dear balong . this is my email address ([email protected]) , would you please send your circuit to me ?
 

[wireless transmit & receive data]

Thank you Staigen
Frequency is not very important but it is better that the frequency won't be in FM
band.
baud rate is among 600 till 9600 and I am going to use data from IC in AVR series. ;)

[wireless transmit & receive data]

Hi.
I need a schematic for transmit & receive data that it should be wireless ???