Dear all, I have the following problem:
I have to design a power supply voltage (about stable 50-100ma) that provides a "linear" change from 3 to 4 volts when the external temperature move from 20 to 45 degrees. Do you have any suggestion?
Thanks Eugenio
Use an LM35 temp sensor and an opamp with gain of 4 to give you a 1V change for a 25degC change in temperature. Then simply offset by the appropriate amount (at the input or output side) to give 3-4V output which drives an output buffer.
Dave :)
Just for the heck of it, what is your professor's name?
Jim
heh heh
You have a wicked sense of humour. I am impressed.
I have noticed a significant upswing in 'shrouded' (yeah right) student questions lately.
Cheers
PeteS
ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.