Over-Temperature Switch


Posted on Jul 4, 2012

The output goes high when a preset temperature is exceeded. A fixed half-supply reference voltage feeds a reference


Over-Temperature Switch
Click here to download the full size of the above Circuit.

current to the inverting input, and a variable current is fed to the noninverting input. Resistor R6 is a negative-temperature-coefficient (NTC) thermistor, so the potential at the junction of R5 and R6 rises with temperature. The op amp will switch high when that voltage exceeds the half-supply value. The trip temperature can be preset via R5.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

MOSFET Headphones
Passive Audio Mixer
HiFi stereo preamplifier with tone control
Low energy consumption audio signal generator
5800 Xpressmusic LCD Screen Display Problem Repair Procedure
cv mega mixer
Audio Distortion Meter Circuit with Diagram
Speaker to microphone converter circuit
The MAX4104 4105 4304 4305 as the driving capacitive loads
AC load impedance R3 added after



Top