Electronic Thermometer of Transistor Temperature Sensor

Published:2011/7/10 5:24:00 Author:Michel | Keyword: Transistor Temperature Sensor, Electronic Thermometer | From:SeekIC

The figure is electronic thermometer of the transistor temperature sensor.In the circuit VT1 is the transistor temperature sensor and its measuring range is -30一100℃.The circuit is composed of DC amplifier and benchmark voltage circuit, Al constitutes benchmark voltage circuit and A2 constitutes DC amplifier. S1 is used for temperature measuring range and it's 0一100℃ when 1 is swithced and it's 0一5℃ when 2 is switched.S2 is used for the header polarity switch.



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