Hey all. I have small electronics project with the following specs.
- I am given a K-type thermocouple and I have to deisgn an amplifier using MOSFET BS170. The ouput should be 10mV/Kelvin (10 mV per 1 kelvin change).
Now I found out that the thermocouple gives 40uV/Kelvin and this means I have to design an amplifier voltage gain of 250.
-Decided to built a common source amplifier. The problem is that MOSFETS give small voltage gains, generaly less than 100, so if anyone knows a way to increase the gain to 250 or maybe a circuit configuration that can do that.
We are told that we should not use any other devices except the thermocouple, MOSFET and resistor
- I am given a K-type thermocouple and I have to deisgn an amplifier using MOSFET BS170. The ouput should be 10mV/Kelvin (10 mV per 1 kelvin change).
Now I found out that the thermocouple gives 40uV/Kelvin and this means I have to design an amplifier voltage gain of 250.
-Decided to built a common source amplifier. The problem is that MOSFETS give small voltage gains, generaly less than 100, so if anyone knows a way to increase the gain to 250 or maybe a circuit configuration that can do that.
We are told that we should not use any other devices except the thermocouple, MOSFET and resistor