Temperature sensing circuit and temperature sensor
A temperature sensor and circuit technology, which is applied in the direction of thermometers, thermometers, and instruments that use electrical/magnetic components that are directly sensitive to heat, and can solve the problems of complex signal output of temperature sensing circuits.
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[0024] The present invention will be further explained by means of specific embodiments in combination with the accompanying drawings.
[0025] figure 2 The schematic diagram of the temperature sensor provided for the first embodiment of the present invention, by figure 2 It can be seen that in this embodiment, the temperature sensor 2 provided by the present invention includes: a temperature sensing circuit 21, an ADC conversion module 22 and a processing module 23; wherein,
[0026] The temperature sensing circuit 21 is used to generate and output a voltage signal according to the temperature of the environment where the temperature sensor is located. Specifically, the temperature sensing circuit 21 may include a first branch and a second branch. The first branch includes a first current connected in series source, at least one resistor and a first temperature-sensing transistor, and the second branch circuit includes a second current source connected in series, at least ...
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