Signal Conversion Circuit for Single-Line Data and Power Transmission
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Solution Overview
Problem
Existing signal conversion circuits face challenges in reducing wiring difficulty and ensuring signal transmission quality, particularly in products with limited size where separate circuit wirings for data and power signals are impractical, leading to signal interference and attenuation during long-distance transmission.
Innovation Solution
A signal conversion circuit integrating data and power signals using a voltage adjustment circuit and a control circuit, where the control circuit provides a control signal to the voltage adjustment circuit to change between different voltage levels or decide on a default voltage based on the input data signal, effectively converting the data signal into a data power signal for simultaneous transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate circuit wirings are used for data signals and power signals, then signal transmission reliability is improved, but wiring complexity increases
Solution Approach 1:
The patent combines data signal transmission and power signal transmission into a single transmission line. The voltage adjustment circuit converts the input data signal into a data power signal that carries both data information and power, eliminating the need for separate wiring and reducing overall system complexity while maintaining transmission reliability through intelligent signal processing.
Solution Approach 2:
The transmission line is designed to serve multiple functions simultaneously: it transmits both data signals and power signals. The voltage adjustment circuit enables the same physical medium to carry different types of signals at different voltage levels, making the transmission line universal and reducing wiring complexity without compromising reliability.
2Volume of moving object
If transmission line length is increased to accommodate product size, then product integration is improved, but signal interference increases
Solution Approach 1:
The voltage adjustment circuit dynamically changes voltage parameters based on the input data signal. By converting data signals into data power signals with varying voltage levels, the system can transmit information over longer distances without significant attenuation or interference, as the power-carrying nature of the signal provides better noise immunity and signal integrity.
3Adaptability or versatility
If multiple power sources with different voltage levels are used, then data signal generation flexibility is improved, but signal interference increases
Solution Approach 1:
The voltage adjustment circuit serves as a universal interface that can handle multiple voltage levels from a single power source. It dynamically adjusts the output voltage based on the input data signal requirements, providing the flexibility of multiple power sources while avoiding their interference problems by using a unified power delivery mechanism.
Data Source
AI summary
A signal conversion circuit including a voltage adjustment circuit and a control circuit is provided. An input terminal and an output terminal of the voltage adjustment circuit are respectively coupled to a power voltage and an output terminal of the signal conversion circuit. The control circuit provides a control signal to a control terminal of the voltage adjustment circuit, controls the control signal to change between a first control voltage level and a second control voltage level according to a signal level of an input data signal, or decides whether to provide a default voltage to the output terminal of the voltage adjustment circuit according to the input data signal.