Temperature-Sensitive Diode Application Circuit

Published:2011/7/10 2:47:00 Author:Robert | Keyword: Temperature-Sensitive Diode, Application | From:SeekIC

The circuit shown in the picture is the digital temperature meter circuit which uses temperature-sensitive diode as the temperature-measurement element. It is mainly made up of the A/D converter 7107, operational amplifier LM324, 3-digit LED display circuit and temperature-sensitive diode and so on. It features high accuracy, good stability, versatility, ease of use and so on. Its temperature measurement range is 0℃~100℃ with accuracy ±1℃. The voltage follower, which is made up of the operational amplifier A1, supply power for the A/D converter integrated circuit IC2 and the temperature sampling circuit separately to reduce the interaction between them. The semiconductor transistor VT1 and R1, R2, R3 supply stable bias current for the temperature-sensitive diode VD1.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Sensor_Circuit/Temperature_Sensor/Temperature_Sensitive_Diode_Application_Circuit.html

Print this Page | Comments | Reading(3)