Sensing Amplifier Circuit Temperature Timing Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sensing and amplifying circuits face challenges in maintaining a stable sensing margin across varying temperatures and operation modes, which affects their performance.
Innovation Solution
A sensing and amplifying circuit that includes a driving voltage control circuit to adjust voltage levels based on temperature, a delay control circuit to generate line and inverted line connection signals with adjustable timing intervals, and a sense amplifier to perform sensing and amplifying operations in response to these signals, ensuring optimal performance across different temperatures and modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed timing interval is used for line connection signals, then the circuit operation is simple, but the sensing margin becomes unstable across varying temperatures
Solution Approach 1:
The patent implements dynamic timing adjustment by making the enable timing interval between first and second line connection signals variable based on temperature. The delay control circuit adjusts the interval dynamically - extending it at high temperatures and reducing it at low temperatures - to maintain stable sensing margin across temperature variations, resolving the contradiction between simplicity and stability.
Solution Approach 2:
The patent changes the timing parameter (enable timing interval) of the line connection signals based on temperature conditions. By adjusting this temporal parameter dynamically rather than keeping it fixed, the sensing margin stability is maintained across different temperature environments without requiring complete redesign of the control logic.
2Reliability
If the enable timing interval is extended at high temperatures, then the sensing margin is improved, but the operation time is increased
Solution Approach 1:
The patent applies dynamic adjustment of the enable timing interval based on real-time temperature conditions. At high temperatures where sensing margin is compromised, the interval is extended to improve reliability. At low temperatures where sensing margin is adequate, the interval is reduced to minimize operation time. This dynamic approach resolves the contradiction by adapting the timing to actual environmental conditions rather than using a fixed conservative value.
3Reliability
If temperature-dependent timing adjustment is implemented, then sensing margin stability is improved, but the control circuit complexity increases
Solution Approach 1:
The patent introduces a temperature sensor as an intermediary element that provides temperature information to the delay control circuit. This intermediary enables the control circuit to make informed timing adjustments based on actual temperature conditions without requiring complex direct temperature sensing and processing, thus achieving temperature-dependent timing control with moderate circuit complexity.
Solution Approach 2:
The patent implements a feedback mechanism where the temperature sensor continuously monitors the operating temperature and feeds this information back to the delay control circuit. The control circuit then adjusts the enable timing interval of line connection signals based on this feedback, creating a closed-loop system that automatically maintains sensing margin stability without manual intervention or complex control algorithms.
Data Source
AI summary
A sensing and amplifying circuit includes a driving voltage control circuit configured to control a voltage level of a driving voltage based on a surrounding temperature of the sensing and amplifying circuit, a delay control circuit configured to generate a line connection signal and an inverted line connection signal in response to a delay start signal by being supplied with the driving voltage, and a sense amplifier configured to perform a sensing and amplifying operation in response to the line connection signal and the inverted line connection signal. An interval between enable timing of the line connection signal and enable timing of the inverted line connection signal is adjusted as the surrounding temperature changes.