Thermistor basic application circuit b


Posted on Mar 28, 2007

As shown for the basic application circuit thermistor. Figure (a) of the basic temperature measurement circuit. The circuit temperature measurement accuracy is not high, can on


Thermistor basic application circuit b
Click here to download the full size of the above Circuit.

ly be used for less demanding precision applications. RT is a positive temperature coefficient thermistor, the temperature rises, the output voltage vo is increased, decreased and vice versa; RT negative temperature coefficient thermistor, the temperature rises, the output voltage vo is lowered, increased and vice versa. Figure (b) is measured using a thermistor temperature differential operational amplifier circuit, temperature measurement accuracy improved. This circuit can detect a temperature difference between two points, which when RTi RT2 at a temperature lower than that RTi, operational amplifier (a) end potential is higher than (+) side potential, the output low; similarly, month in which temperature l rt2 when at high. fig il (c) use of an and logarithmic diode measurement circuit, thermistor linear compensate, rp adjustable gain amplifier, thereby further improving characteristics.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Simple Mobile Phone Battery Charger
am transmitter circuit
Description of an active reversible in-phase/quadrature modulator carrying out frequency UDC
SOLID STATE TESLA COIL
Micro Power Transmitting Station
Phantom and T powering for condenser microphones
Audio Signal Generator
Relay control auto transformer one AC power supply circuit
Burglar alarm circuit



Top