Voltage State Detector Circuit for Floating, High, and Low Nodes
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Solution Overview
Problem
Conventional voltage state detectors are limited in their ability to determine a floating state of a voltage node, as they can only detect predetermined fixed potentials, restricting their applications.
Innovation Solution
A voltage state detector is designed with an input terminal, voltage drop circuit, pull-down circuit, load circuit, transistor, and pull-up circuit, which output state determination signals to identify whether the input terminal is in a floating, high, or low voltage state by controlling the transistor based on detection current flow through these circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional voltage state detector is used, then the detector structure is simple, but it can only determine a predetermined fixed potential and cannot detect a floating state
Solution Approach 1:
The detector is divided into multiple independent functional modules: voltage drop circuit, pull-down circuit, pull-up circuit, and transistor control unit. Each module handles a specific aspect of voltage state detection, allowing the system to detect multiple states (floating, high, low) through coordinated operation of segmented components.
Solution Approach 2:
The detector is designed to perform multiple detection functions using a unified circuit structure. By configuring the voltage drop circuit, pull-down circuit, and pull-up circuit with specific resistance values and transistor control, a single detector can determine floating states, high voltage states, and low voltage states, making it universally applicable for various voltage detection scenarios.
2Measurement precision
If the detector is designed to detect multiple voltage states including floating state, then the detection capability is improved, but the circuit complexity increases
Solution Approach 1:
The detector employs dynamic control through transistor switching to achieve multiple detection states. The transistor's conductivity state changes based on the voltage applied to its control terminal, enabling the detector to dynamically respond to different voltage conditions (floating, high, low) without requiring separate static circuits for each state.
Solution Approach 2:
The detector achieves different detection states by changing electrical parameters such as resistance values in the voltage drop circuit, pull-down circuit, and pull-up circuit, as well as the conductivity state of the transistor. By adjusting these parameters, the detector can accurately distinguish between floating, high, and low voltage states with improved measurement precision.
Data Source
AI summary
A voltage state detector includes an input terminal, a voltage drop circuit, a pull-down circuit, a load circuit, a transistor, a pull-up circuit, a first output terminal, and a second output terminal. The voltage drop circuit is coupled to the input terminal. The pull-down circuit is coupled to the voltage drop circuit and a first reference terminal. The load circuit is coupled to a second reference terminal. The transistor has a first terminal coupled to the load circuit, a second terminal coupled to the first reference terminal, and a control terminal coupled to the voltage drop circuit. The pull-up circuit is coupled to the second reference terminal and the voltage drop circuit. The first output terminal is coupled to the first terminal of the transistor for outputting a first state determination signal. The second output terminal is coupled to the voltage drop circuit for outputting a second state determination signal.