Small question

[nohamed_sheckooo]

firstly,I'm electrical power engineer ,so i have littel informations about this
subject ,so PLZ help me .

i want to make a protection to a DC motor against overheat

so, i use pic18f452 can i use thermocoupe to be connected to the micro


or the micro will not sense the millivolts that will be get from the thermocouple

If there is away to amplify the thermocouple signal ,how i can ??

If i can not use thermocouple, what can i use? [RTD]???????

 

[be80be]

Why would you use a 18f452 that's a 40 pin pic a 12f683 would be better here you something to get you started https://www.electro-tech-online.com/custompdfs/2009/02/00512e.pdf

 

[nohamed_sheckooo]

thanx for ur replay
i used 18f452 as i need it in another operations and this is additional one

i made the code and i simulated it also
but my problem about the low voltage of thermocouple below the resolution [4.88 mv]

 

[be80be]

get you some mcp9701a-e/10 the datasheet is here https://www.electro-tech-online.com/custompdfs/2009/02/21942a.pdf

 

[nohamed_sheckooo]

thanx
that i was talken about................