Sunday, April 17, 2016

Fan control temperature using sensor LM35

Basic circuit of the LM35 are made to control the fan is either used on amplifier that requires automatic cooling. Its use on power amplifier circuit above and only requires DC fan. From basic sensors based on ic and amplifier op-amp is added again to the transistor Q1 to drive the fan.

Fan control  temperature using sensor LM35 circuit diagram


Part List :
R1___220K
R2___100K
R3___3K3
R4___22K
R5___1M
R6___150R
R7___2K2
R8___33R 4W
C1___100pF
D1___1N4148
IC1__7915
IC2__TL072
IC3__LM35
F1___DC Fan 12V

Electronic Circuit is a good site for hobbyist also who would like to try DIY because it shared good circuits. If you have a personalized circuit requirement you may feel free to request it through the comment box or contact me.

2 Comments

i know that lm35 works at a range of temperature, but what specific range does this circuit operate under?


EmoticonEmoticon