Temperature-Compensated Delay Circuit for Stable Memory Timing
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Solution Overview
Problem
Conventional delay circuits in integrated circuits are affected by real-time environmental factors, leading to deviations between actual and predetermined delay times, which compromises the stability and reliability of signal transmission.
Innovation Solution
A temperature compensation control circuit is introduced to generate a target temperature compensation control signal based on ambient temperature and initial signals, coupled with a delay circuit to dynamically adjust delay times, ensuring accurate and stable signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional delay circuit is used, then the circuit structure is simple, but the delay time deviates from the predetermined value due to temperature variations
Solution Approach 1:
The patent changes the control parameter of the delay circuit from a fixed initial control signal to a dynamically adjusted temperature compensation control signal. The temperature compensation control circuit monitors temperature variations and adjusts the control signal accordingly, ensuring the delay circuit maintains accurate delay time across different temperature conditions without requiring complex hardware modifications.
Solution Approach 2:
The patent implements a feedback mechanism where the temperature compensation control circuit continuously monitors the temperature environment and feeds back adjustment signals to the delay circuit. This closed-loop control ensures that the delay time remains accurate by compensating for temperature-induced variations in real-time, resolving the contradiction between simplicity and precision.
2Reliability
If temperature compensation is implemented, then the stability of signal transmission is improved, but the circuit complexity increases
Solution Approach 1:
The patent adjusts the control parameter dynamically based on temperature conditions, transforming a static delay circuit into an adaptive one. This allows the circuit to maintain high reliability across temperature variations while keeping the structural complexity manageable through parameter-based adaptation rather than structural redesign.
Solution Approach 2:
The temperature compensation control circuit serves multiple functions: it monitors temperature, calculates compensation values, and adjusts the delay control signal. This multi-functionality approach improves reliability without proportionally increasing circuit complexity, as a single integrated control block performs multiple tasks.
3Manufacturing precision
If the delay circuit is designed for high precision, then the manufacturing complexity increases, but the conventional design is simpler to manufacture
Solution Approach 1:
The patent achieves high manufacturing precision through parameter adjustment rather than precision manufacturing of physical components. By controlling the delay circuit through software or programmable logic that adjusts timing parameters based on temperature, the system achieves high precision without requiring complex physical manufacturing processes.
Solution Approach 2:
The patent replaces mechanical/physical precision requirements with electronic/software-based parameter control. Instead of manufacturing precision delay elements, the system uses programmable control logic to achieve precise delay times, significantly easing manufacturing requirements while maintaining high precision.
Data Source
AI summary
Delay circuitry includes a temperature compensation control circuit and a delay circuit. The temperature compensation control circuit is configured to generate a target temperature compensation control signal based on an initial control signal, a real-time ambient temperature signal, a temperature coefficient compensation enable signal, and a temperature coefficient control signal. The delay circuit is connected to the temperature compensation control circuit, and is configured to generate a temperature compensated target delay signal based on the target temperature compensation control signal and an initial delay signal such that a delay time of the target delay signal generated by the delay circuit can be dynamically compensated based on a real-time ambient temperature signal collected by a temperature sensor.