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Voltage comparator with output-stage acceleration function

A voltage comparator and output stage technology, applied in multiple input and output pulse circuits, electrical components, pulse processing, etc., can solve the problem of imperfect voltage comparator functions, inability to achieve high precision, high speed and low power consumption at the same time, etc. question

Active Publication Date: 2021-04-09
SOUTHWEST UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to propose a voltage comparator with an output stage acceleration function to solve the problem that the traditional voltage comparator has imperfect functions and cannot simultaneously realize the performance of high precision, high speed and low power consumption

Method used

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Embodiment Construction

[0032] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0033] It should be noted that, in this document, the term "comprises", "comprises" or any other variant is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, but also Other elements not expressly listed, or inherent to the process, method, article, or apparatus, are also included. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.

[0034] Herein, use of suffixes such as 'module', 'part' or 'unit' for denoting elements is only for facilitating description of the present invention and has no specific meaning by itself. Therefore, "module" and "compone...

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PUM

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Abstract

The invention is applicable to the technical field of integrated circuits, and provides a voltage comparator with an output-stage acceleration function, which comprises a bias circuit, a two-stage comparator and an acceleration circuit, the bias circuit acts on the two-stage comparator and the accelerating circuit and provides voltage bias; the two-stage comparator comprises a first-stage comparison circuit and a second-stage comparison circuit; the acceleration circuit comprises an acceleration path, a first acceleration branch and a second acceleration branch; and according to the voltage comparator with the output stage acceleration function provided by the invention, the speed of turning the output of the two-stage comparator from a high level to a low level can be improved.

Description

technical field [0001] The invention relates to the technical field of integrated circuits, in particular to a voltage comparator with an output stage acceleration function. Background technique [0002] The voltage comparator is an important module in the integrated circuit. The voltage comparator mainly realizes the voltage comparison function, and is widely used in oscillators, switching power supply protection circuits, and ADC circuits. Especially in the application of protection circuits such as over-temperature protection, over-current protection, and over-voltage protection, on the one hand, the voltage comparator is required to have high precision, that is, the resolution of the input voltage is high, so as to ensure the realization of accurate protection points; On the one hand, the voltage comparator is also required to have a high speed, so as to ensure that it enters the protection state quickly, and prevents the circuit from being damaged due to the long-term o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K5/24
CPCH03K5/2472
Inventor 郑直岳磊解宜原
Owner SOUTHWEST UNIVERSITY