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Electronic device and method for calibrating a comparator in the electronic device

An electronic device and comparator technology, applied in the field of signal processing, can solve problems such as affecting accuracy, and achieve the effects of reducing labor costs, reducing resource consumption, and reducing and costing

Active Publication Date: 2021-10-26
RAYMEASURE MEDICAL TECH CO LTD SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conversion error of the comparator may affect the accuracy of the measurement results of devices such as X-ray detectors and digital PET detectors

Method used

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  • Electronic device and method for calibrating a comparator in the electronic device
  • Electronic device and method for calibrating a comparator in the electronic device
  • Electronic device and method for calibrating a comparator in the electronic device

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Embodiment Construction

[0045] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only used to explain a part of the embodiments of the present application, not all Examples are not intended to limit the scope of the application or the claims. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the scope of protection of this application.

[0046] It should be noted that when an element is referred to as being “disposed on” another element, it may be directly disposed on the other element or there may also be an intervening element. When an element is referred to as being "connected / coupled" to another element, it can be directly connected / coupled to the other element or intervening elements...

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Abstract

The embodiment of the present application discloses an electronic device and a method for calibrating the comparator in the electronic device. The electronic device includes: a comparator; input connected to provide a white noise signal to the comparator; a controller connected to a second input of the comparator to control the voltage at the second input; a counter connected to the controller and the an output terminal of the comparator connected to count the number of transitions of the output signal of the comparator; and a processor connected to the counter to determine the comparison according to the number of transitions recorded by the counter Converter error. Through the technical solution provided by this application, the comparator can be calibrated by using the white noise signal provided by the operational amplifier inside the electronic device without requiring additional devices to provide the signal, thus reducing software and hardware expenses and labor costs.

Description

technical field [0001] The present application relates to the field of signal processing, in particular to an electronic device and a method for calibrating a comparator in the electronic device. Background technique [0002] The descriptions in this section merely provide background information related to the disclosure in this application and may not constitute prior art. [0003] A comparator is a circuit that compares the voltage amplitude of an analog signal with the voltage amplitude of a reference signal, which can realize the conversion of an analog signal to a digital signal. The working principle of the comparator is as follows: when the voltage at the P terminal is greater than the voltage at the N terminal, it outputs 1, otherwise, it outputs 0. [0004] The comparator can be widely used in many electronic devices, for example, X-ray detectors and digital positron emission tomography (PET) detectors. However, the comparators used in the above-mentioned electron...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M1/10
CPCH03M1/1009H03M1/1071
Inventor 吴杰奚道明陈瑞刘苇曾晨张鹏飞谢庆国
Owner RAYMEASURE MEDICAL TECH CO LTD SUZHOU