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Voltage detection circuit and chip

A voltage detection circuit and voltage detection technology, applied in the field of integrated circuits, can solve the problems of poor stability and large layout area of ​​the voltage detection circuit, and achieve the effects of rapid voltage detection speed, small layout area, and fewer components.

Pending Publication Date: 2022-07-12
CHANGXIN MEMORY TECH INC
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The present disclosure provides a voltage detection circuit and chip, at least to a certain extent, overcomes the problems of large layout area and poor stability of the voltage detection circuit provided in the related art

Method used

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  • Voltage detection circuit and chip

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Embodiment Construction

[0051] Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0052] The terms "first" and "second" in the text are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as "first", "second" may expressly or implicitly include one or more of said features. In the description of the present application, "plurality" means two or more, unless otherwise clearly defined.

[00...

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Abstract

The invention provides a voltage detection circuit and a chip, and relates to the technical field of integrated circuits. The voltage detection circuit comprises a reference voltage generation module which is connected with a first node and is used for generating constant reference voltage and outputting the reference voltage through the first node; the voltage detection module is connected with a to-be-detected voltage, the first node and a second node, and is used for generating a voltage detection signal representing the to-be-detected voltage under the control of the reference voltage and outputting the voltage detection signal through the second node; and the voltage conversion module is connected with the second node and is used for generating and outputting a voltage detection output signal according to the voltage detection signal received by the second node. According to the voltage detection circuit provided by the invention, the voltage detection accuracy can be improved, and the circuit layout occupied area is reduced.

Description

technical field [0001] The present disclosure relates to the technical field of integrated circuits, and in particular, to a voltage detection circuit and a chip. Background technique [0002] In electronic circuits, when the power supply voltage is abnormal due to faults or loads, the performance of the power supply may be damaged or the electronic equipment receiving the power supply may not work properly. A voltage detection circuit for the power supply voltage is usually added to the electronic circuit to detect whether the output voltage of the power supply deviates from a predetermined range. [0003] In the related art, the voltage dividing value of the resistor and the reference voltage are usually input into the comparator to obtain the detection signal. However, the comparator, the reference circuit for providing the reference voltage, the voltage dividing resistor and other components have problems such as large circuit area and poor stability. [0004] It should...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/25G01R15/04
CPCG01R19/2503G01R19/2509G01R15/04
Inventor 程伟杰
Owner CHANGXIN MEMORY TECH INC
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