Current-Branch Voltage Detection Circuit for IC Supply Stability
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Solution Overview
Problem
Integrated circuits face stability issues due to voltage fluctuations, which existing technologies struggle to accurately detect and manage, leading to potential operational instability.
Innovation Solution
A voltage detection circuit and method that utilize a first current source with two branches, one including a voltage control current component and a load, and another with a current signal detection component and load, allowing real-time adjustment and detection of voltage changes by controlling currents through these branches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing voltage detection methods are used, then the integrated circuit can operate, but voltage fluctuation detection accuracy is insufficient leading to operational instability
Solution Approach 1:
The patent introduces a current signal detection component as an intermediary element that converts voltage fluctuations into current signals for detection. The detection circuit does not directly measure voltage but rather detects current changes in the second branch that correspond to voltage variations, improving measurement accuracy while maintaining system reliability
Solution Approach 2:
The patent replaces direct voltage measurement mechanisms with a current-based detection system. By using a voltage control current component and current signal detection component, the system substitutes traditional voltage sensing with current measurement, achieving higher detection accuracy and better operational stability
2Measurement precision
If a voltage detection circuit with real-time adjustment capability is implemented, then voltage fluctuation detection accuracy improves, but the device complexity increases
Solution Approach 1:
The detection circuit is segmented into distinct functional branches: a first branch with a voltage control current component and load, and a second branch with a current signal detection component and load. This segmentation allows each component to perform its specific function efficiently, improving detection accuracy while keeping the overall structure manageable through clear functional division
Solution Approach 2:
The voltage control current component serves multiple functions: it receives the voltage signal to be detected, controls the first current based on voltage magnitude, and works in conjunction with the current signal detection component. This multi-functionality reduces the need for separate dedicated components, thereby managing device complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate detection and analysis of voltage fluctuations, ensuring stable operation of integrated circuits by adjusting currents in response to detected voltage changes, thereby improving the reliability of the integrated circuit's power supply unit.
Implementation Method 1
the first voltage control current component is configured to adjust a first current flowing through the first branch according to a size of the voltage signal to be detected
Implementation Method 2
the current signal detection component is configured to output, in a real time manner, a preset signal characterizing a second current flowing through the second branch
Data Source
AI summary
A voltage detection circuit and method for an integrated circuit, and an integrated circuit are provided. The voltage detection circuit includes: a first current source, a first branch and a second branch. A current outputted by the first current source is allocated to the first branch and the second branch. The first branch includes a first voltage control current component and a first load connected in series. The second branch includes a current signal detection component and a second load connected in series. A voltage signal to be detected is inputted to a control signal input terminal of the first voltage control current component. The current signal detection component is configured to output, in real time, a preset signal characterizing a second current flowing through the second branch, to determine change of the voltage signal to be detected based on the preset signal.