Waveform shaping circuit and electronic equipment

Abstract

The embodiment of the invention relates to the technical field of electronic circuits, and discloses a waveform shaping circuit and electronic equipment. The waveform shaping circuit comprises: an amplitude detection unit and a comparator, wherein the waveform input end is connected with the first input end of the comparator; one end of the amplitude detection unit is connected with the waveform input end, and the other end of the amplitude detection unit is connected with the second input end of the comparator; an amplitude detection unit which is used for receiving the input voltage of the waveform input end and generating a reference voltage in direct proportion to the amplitude of the input voltage; and a comparator which is used for receiving the reference voltage and the input voltage of the waveform input end, comparing the input voltage with the reference voltage and outputting a level signal after waveform shaping. The embodiment of the invention further provides electronic equipment. Not only can waveform shaping be performed on a signal through a simple circuit structure, but also the problem of application limitation of a waveform shaping circuit in the prior art can besolved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of electronic circuits, in particular to a waveform shaping circuit and electronic equipment. Background technique [0002] Signal waveform shaping is widely used in modern electronic technology, and the most commonly used is to shape non-square wave signals (such as sine wave signals) into square wave signals so that digital systems can recognize and process them. Traditional square wave shaping circuits such as figure 1 , figure 2 As shown: the signal Vi to be shaped is input to one of the input terminals of the comparator, and the other input terminal of the comparator is connected to a fixed voltage Vr as a reference voltage. When the signal Vi to be shaped rises above the reference voltage Vr or falls below the reference voltage Vr, the output level of the output terminal of the comparator is reversed, thereby outputting the square wave signal Vo of the signal Vi to be shaped. ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a waveform shaping circuit and electronic equipment, which can not only perform waveform shaping on signals through a simple circuit structure, but also solve the limitation of the application of the waveform shaping circuit in the prior art

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