Digital controller for an analog comparator

By designing a digital controller for the analog comparator, supporting multiple operating modes and flexible channel configuration, the problem of single mode in the existing technology is solved, realizing flexible control and wide applicability of the analog comparator.

CN116243972BActive Publication Date: 2026-06-09杭州领芯微电子有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
杭州领芯微电子有限公司
Filing Date
2023-03-09
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The digital control mode of analog comparators in existing MCUs is limited, and cannot achieve flexible channel comparison order and discontinuous comparison, thus limiting its applicability.

Method used

A digital controller for an analog comparator is designed, comprising an ACMP register group, a channel switching counter, a filter counter, a polling channel counter, and a positive and negative output channel selection module. It supports single continuous mode, single sequence mode, discontinuous sequence mode, and continuous sequence mode, and allows new polling channels to be configured and the channel order to be flexibly defined during the comparison process.

Benefits of technology

This analog comparator implements multiple working modes, allows for free control of channel switching time, and updates comparison results in real time. It is suitable for a variety of applications, thus expanding its applicability.

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Abstract

The application discloses a digital controller of an analog comparator, comprising an ACMP register group, a channel switching counter, a filter counter, a polling channel counter and a positive and negative terminal output channel selection module. Four working modes of single continuous mode, single sequence mode, intermittent sequence mode and continuous sequence mode are realized, the channel selection module is used for selecting the channel for comparison, the channel switching time can be freely controlled, and the comparison results of all the polling channels can be updated in real time. New polling channels can be configured in the comparison process, and the user can flexibly define the comparison order of the channels. The technical scheme of the application can realize the working modes of the analog comparator in multiple modes, is flexible in configuration, suitable for multiple working occasions and wide in application.
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