I have a NTC-resistor in series with constant resistor (R). I know the current in the NTC-resistor will increase when the temperature rises. Is NTC or R going to be closest to +5V?
I have a NTC-resistor in series with constant resistor (R). I know the current in the NTC-resistor will increase when the temperature rises. Is NTC or R going to be closest to +5V?
As far as I know a NTC resistor is a temperature sensitive resistor whose (T)emperature (C)oefficient is (N)egative: resitance decreases as (T)emperature increases. The rest of your post does not make much sense.
Regards
i totally agree, it doesnt make sense:S
Normally you make a voltage divider with a thermistor and a fixed resistor.
And measure the voltage variation on the tap of the voltage divider.
If you choose the value of the fixed resistor the same as the value of the thermistor, you get the most variation in voltage.
Leo..
My guess: I think he "gets" the voltage divider concept and just wants to know whether the therm or the R should be "on top" (attached to Vcc).
Component placement depends whether you want the voltage to go higher or lower with the rise of temperature.
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