N nohamed_sheckooo New Member Feb 20, 2009 #1 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]???????
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 Well-Known Member Feb 20, 2009 #2 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
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
N nohamed_sheckooo New Member Feb 20, 2009 #3 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]
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 Well-Known Member Feb 20, 2009 #4 get you some mcp9701a-e/10 the datasheet is here https://www.electro-tech-online.com/custompdfs/2009/02/21942a.pdf
get you some mcp9701a-e/10 the datasheet is here https://www.electro-tech-online.com/custompdfs/2009/02/21942a.pdf