The dual limit temperature alarm circuit (2)

Published:2011/7/20 23:50:00 Author:Borg | Keyword: temperature alarm circuit | From:SeekIC

Element selectionR1～R16 are selected with the 1/4 metal film resistor or the carbon film resistor; RT is the negative coefficient thermistor; RP1 and RP2 are the small multi-turn potentiometers; C1～C4, C6 and C7 are the aluminum electrolytic resistors of 16V; C5 is the dacron or monolith capacitor; VD1～VD3 are the 1N4148 silicon switches diodes; VL1～VL3 are the high brightness LED of φ3mm, VL1 is yellow, VL2 is red, VL3 is green.



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