Device, method and electronic circuit for monitoring power supply voltage of electronic circuit

By designing a device including a voltage regulator, a critical timing generation module, a control signal regulation module and a power drop sensing module, the timing error problem caused by the power supply voltage drop of the digital circuit is solved, and accurate monitoring and timely response to the power supply voltage of the electronic circuit is achieved.

CN118641989BActive Publication Date: 2025-03-28BEIJING YOUZHUJU NETWORK TECH CO LTD +1
2 Cites 0 Cited by

Patent Information

Application Number
CN202310260003.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-03-13
Publication Date
2025-03-28
Estimated Expiration
2043-03-13

AI Technical Summary

Technical Problem

When the digital circuit is working, excessive current is drawn from the power supply network, causing the power supply voltage to fall instantly, which may cause timing errors and locking of the digital circuit.

Method used

A device is designed, including a voltage regulator, a critical timing generation module, a control signal regulation module and a power drop sensing module. The preset voltage is generated by processing the power supply voltage, and a critical timing signal and a drop indication signal are generated based on the original clock signal and the delay control signal to monitor whether the power supply voltage falls below the preset voltage.

Benefits of technology

Accurate monitoring of the power supply voltage of electronic circuits is achieved, and the power supply voltage drop can be detected in a timely manner, avoiding timing errors caused by power supply drop, thereby ensuring the normal operation of the digital circuit.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

Embodiments of the present disclosure provide a device, method and electronic circuit for monitoring the power supply voltage of an electronic circuit. The device includes: a voltage regulator, configured to process the power supply voltage to generate a preset voltage; a critical timing generation module, powered by the preset voltage, configured to generate a critical timing signal based on an original clock signal and a delay control signal, the critical timing signal being alternately in a first level state and a second level state; a control signal adjustment module, configured to adjust the delay control signal based on the critical timing signal, wherein when the critical timing signal is in a first level state, the delay control signal is increased, and when the critical timing signal is in a second level state, the delay control signal is reduced; and a power drop sensing module, powered by the power supply voltage, configured to generate a drop indication signal based on the original clock signal and the delay control signal, the drop indication signal indicating whether the power supply voltage drops below the preset voltage.
Need to check novelty before this filing date? Find Prior Art