Adjustable Voltage Detection Threshold for Process Variation
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Solution Overview
Problem
Existing voltage detection circuits have a fixed detection threshold that cannot be regulated, making them inflexible in responding to changes in process stability or device modifications.
Innovation Solution
A voltage detection circuit comprising a threshold setting module and a voltage conversion module, where the threshold setting module adjusts the detection threshold based on a regulation signal, allowing for flexible regulation of the voltage detection threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed threshold is used in the voltage detection circuit, then the circuit structure is simple, but the detection threshold cannot be regulated flexibly
Solution Approach 1:
The patent implements a dynamic threshold regulation mechanism where the threshold setting module can adjust the detection threshold based on process stability or device changes. The threshold regulation signal dynamically modifies the threshold value, transforming the fixed threshold system into an adaptable one that responds to changing conditions.
Solution Approach 2:
The patent changes the threshold parameter from a fixed value to a regulatable value through the threshold setting module. By introducing a threshold regulation signal, the detection threshold parameter can be modified according to actual conditions, enabling flexible adaptation without fundamentally redesigning the voltage conversion module.
2Reliability
If the detection threshold is fixed, then the voltage conversion module does not need modification, but the circuit cannot respond to process instability or device changes
Solution Approach 1:
The patent establishes a feedback mechanism where the threshold setting module receives threshold regulation signals that reflect process stability or device change conditions. This feedback loop enables the system to automatically adjust the detection threshold to maintain reliable detection accuracy under varying operating conditions.
Solution Approach 2:
The threshold setting module performs preliminary adjustment of the detection threshold based on anticipated or detected changes in process stability or device characteristics. By proactively regulating the threshold before detection errors occur, the system maintains reliable operation across different conditions.
Data Source
AI summary
A voltage detection circuit including a threshold setting module and a voltage conversion module, and a voltage detection method are provided. In the threshold setting module, a first input end is configured to receive a voltage to be detected, a second input end is configured to receive a threshold regulation signal, a power supply end is connected to a first voltage and is configured to set a voltage regulation range according to the threshold regulation signal, determine a first voltage regulation value in the voltage regulation range according to the voltage to be detected, and generate a control voltage according to the first voltage and the first voltage regulation value. The voltage conversion module is configured to output a first level when the control voltage is greater than a preset value and output a second level when the control voltage is less than or equal to the preset value.