Amplifying Circuit Switching for Signal Polarity and Layout
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Solution Overview
Problem
Conventional amplifying circuits with multiple transmission paths face issues where signal polarity changes when paths are switched, causing burden on subsequent circuits and limiting circuit layout due to shared loading.
Innovation Solution
An amplifying circuit design with a switching circuit that directs output signals from gain adjusting circuits to specific output terminals based on operating modes, ensuring consistent signal polarity and flexible layout by connecting gain adjusting circuits to different terminals of a shared loading circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If multiple transmission paths share a common loading terminal, then the circuit layout flexibility is limited, but the device complexity is reduced
Solution Approach 1:
The patent divides the loading circuit into multiple independent loading terminals (first loading terminal and second loading terminal) instead of using a single shared terminal. This segmentation allows different transmission paths to connect to different terminals, thereby improving circuit layout flexibility without significantly increasing overall device complexity.
2Adaptability or versatility
If gain adjusting circuits output signals with different polarities, then the adaptability of the amplifying circuit is improved, but the reliability of subsequent signal processing is degraded
Solution Approach 1:
The patent introduces a switching circuit as an intermediary component between the gain adjusting circuits and the output. This switching circuit selectively connects different transmission paths to the output terminal based on the required signal polarity, ensuring that only signals with the correct polarity are output. This maintains adaptability while ensuring signal processing reliability.
Solution Approach 2:
The patent uses inversion by switching between different transmission paths that have opposite polarity characteristics. When one path produces incorrect polarity, the switching circuit connects to the other path that produces the correct polarity, effectively using the opposite characteristic to solve the problem.
3Reliability
If a switching circuit is added to manage signal polarity, then the signal processing reliability is improved, but the device complexity increases
Solution Approach 1:
The switching circuit is designed to perform multiple functions: it selects transmission paths based on signal polarity requirements, controls signal routing to appropriate output terminals, and manages the connection between gain adjusting circuits and loading terminals. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity while maintaining improved reliability.
Data Source
AI summary
An amplifying circuit includes a first gain adjusting circuit, a second gain adjusting circuit, a load circuit and a switch module. When the amplifying circuit operates in a first mode, the first gain adjusting circuit receives a first input signal, and generates a first output signal to a second output terminal of the amplifying circuit via the load circuit and the switch module; and when the amplifying circuit operates in a second mode, the second gain adjusting circuit receives a second input signal, and generates a second output signal to a first output terminal of the amplifying circuit via the load circuit and the switch module.