Low-power consumption current hunger type oscillator circuit

Abstract

The invention provides a low-power consumption current hunger type oscillator circuit which comprises a power source end, a grounded end, a reference generation circuit, a low-voltage ring oscillatorand a voltage transformation circuit, wherein the low-voltage ring oscillator is electrically connected with the reference generation circuit; the voltage transformation circuit is electrically connected with the low-voltage ring oscillator; the reference generation circuit comprises a first PMOS transistor; a source of the PMOS transistor is electrically connected with the power source end; a gate of the first PMOS transistor is electrically connected with an output end of an error amplifier; a drain of the first PMOS transistor is respectively electrically connected with a positive output end of the error amplifier and a first end of a first resistor; a second end of the first resistor is electrically connected with the grounded end. According to the low-power consumption current hungertype oscillator circuit provided by the invention, accurate oscillator frequency output and low power consumption can be realized, the operating voltage of the circuit has extremely small influence onthe oscillator frequency value, and the circuit structure is simple.

Description

technical field [0001] The invention relates to the field of integrated circuit design, in particular to a low power consumption current hungry oscillator circuit. Background technique [0002] With the development of integrated circuit technology, the oscillators in integrated circuits have an increasingly strong demand for low power consumption and high stability; the power consumption of traditional loop oscillators has a significant impact on power supply voltage changes, and traditional hysteresis oscillators There is also the defect of high power consumption and complicated circuit. Contents of the invention [0003] The invention provides a low-power consumption current-hungry oscillator circuit, and the purpose is to solve the problem that the power consumption of the oscillator is too large and affects the change of the power supply voltage. [0004] In order to achieve the above purpose, an embodiment of the present invention provides a low-power consumption cur...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a low power consumption current hungry oscillator circuit, the purpose of which is to solve the problem that the power consumption of the oscillator is too large and affects the change of the power supply voltage

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