Bidirectional Voltage Differentiator Circuit for DC-Independent Sensing
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Solution Overview
Problem
Traditional voltage sensing circuits require additional circuitry to sense bidirectional voltage variations, reducing efficiency and increasing manufacturing costs, and often consider unnecessary DC components, leading to inefficiencies.
Innovation Solution
A bidirectional voltage differentiator circuit that senses changes in input voltage in both directions without regard to DC values, using start-up circuitry to accelerate response and logic circuitry to produce output signals indicative of voltage variations, comprising sensing, output, and logic components that operate independently of voltage direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional voltage sensing circuits use separate circuitry for sensing rising and falling voltage variations, then the sensing capability for bidirectional voltage changes is achieved, but the circuit complexity and manufacturing cost increase
Solution Approach 1:
The patent combines the sensing of rising and falling voltage variations into a single integrated circuit architecture. The voltage sensing circuit uses a unified structure that can detect both upward and downward voltage changes through shared components, eliminating the need for separate circuitry for each direction and thereby reducing overall circuit complexity while maintaining full bidirectional sensing capability
Solution Approach 2:
The sensing circuit is designed with universal components that perform multiple functions. The same circuit elements are used to detect both rising and falling voltage variations, making the circuit multi-functional rather than requiring dedicated separate paths for each sensing direction, thus reducing device complexity without compromising sensing reliability
2Reliability
If traditional voltage sensing circuits include additional circuitry for bidirectional sensing, then both rising and falling voltage changes can be detected, but the manufacturing cost increases
Solution Approach 1:
By merging the sensing functions for rising and falling voltage into a single circuit design, the patent reduces the total number of components required. This consolidation directly lowers manufacturing costs while preserving the ability to detect both types of voltage variations, as the unified circuit uses shared elements rather than requiring duplicate separate circuitry
3Loss of information
If traditional voltage sensing circuits consider the DC component of the sensed voltage, then comprehensive voltage information is obtained, but circuit efficiency decreases
Solution Approach 1:
The patent extracts and eliminates the DC component consideration from the sensing operation. The circuit is designed to focus only on detecting AC variations or changes in voltage levels without being influenced by or requiring processing of the DC offset. This extraction of the unnecessary DC component function improves circuit efficiency by reducing computational and processing overhead while still capturing all relevant voltage variation information
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
The solution enhances efficiency by eliminating the need for separate circuitry for rising and falling voltage detection, reduces component count, and improves manufacturing costs by integrating bidirectional sensing capabilities, effectively indicating voltage variations regardless of DC components.
Implementation Method 1
an input node capacitively coupled to a first circuit leg
Data Source
AI summary
A bidirectional voltage differentiator circuit comprises start-up circuitry, sensing circuitry, and output circuitry coupled to logic circuitry. The start-up circuitry acts to start-up the sensing circuitry when the circuit is powered on, and accelerates the response of the sensing circuitry thereafter. The sensing circuitry senses variation in an input voltage applied to an input node. Responsive to the voltage variation sensed by the sensing circuitry, the output circuitry produces a state change at a first or second output node. The logic circuitry receives the states of the output nodes and produces a logic output signal to indicate the occurrence of the variation sensed in the input voltage. The voltage sensing circuit is operable to sense variation of the input voltage regardless of whether the voltage is rising or falling and without regard to the DC value of the input voltage.