Temperature compensated bandgap reference voltage generation circuit and linear voltage regulator

Abstract

The application discloses a segmented temperature compensation band gap reference voltage generating circuit and a linear voltage stabilizer, and the circuit comprises a reference voltage generating circuit, a compensation resistor and a compensation circuit; a control voltage output end of the reference voltage generating circuit is connected with a first end of the compensation resistor, a second end of the compensation resistor is connected with a first power supply, and the second end of the compensation resistor is used for outputting a reference voltage; the compensation circuit comprises a basic circuit and at least two cascaded segmented compensation circuits; the basic circuit comprises a first switch and a first resistor which are connected in series between the first power supply and a second power supply, and a control end of the first switch is connected with the control voltage output end; the segmented compensation circuit comprises at least two cascaded temperature compensation circuits; the temperature compensation circuit comprises a second switch and a second resistor which are connected in series between the control voltage output end and the second power supply; by arranging the segmented compensation circuit, the segmented compensation of temperature is realized, the compensation precision is improved, and the circuit structure is simple and low in power consumption.

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