Multi-Interface Transmission Circuit With Selectable Signal Modes
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Solution Overview
Problem
Electronic apparatuses with diverse interfaces face challenges in data exchange due to differing interface standards, limiting the ability to achieve various interfaces efficiently.
Innovation Solution
A transmission device comprising selectors, control signal generators, and drivers that can alternate between signals and their inversions, allowing for the selection of different voltage levels and operation modes to accommodate multiple interfaces, enabling the transmission of data through differential, three-phase, or single-phase signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple processors are used to achieve various interfaces, then interface versatility is improved, but device complexity and cost increase
Solution Approach 1:
The transmission device is designed to perform multiple interface functions through a single integrated unit. By incorporating selectors that can switch between different signal types (differential signals, three-phase signals, single-phase signals) and voltage levels (1.8V, 3.3V, 5V), the device achieves multi-functionality without requiring separate processors for each interface type, thereby reducing overall device complexity while maintaining interface versatility
2Adaptability or versatility
If multiple processors are used to achieve various interfaces, then interface versatility is improved, but cost increases
Solution Approach 1:
The transmission device achieves multiple interface types through a single integrated unit with configurable signal selection capabilities. The device can operate in differential signal mode, three-phase signal mode, or single-phase signal mode, and support multiple voltage levels, eliminating the need for multiple separate processors and reducing manufacturing cost
Solution Approach 2:
The invention merges the functions of multiple interface processors into a single transmission device. By combining signal selection, voltage level adjustment, and multiple output modes in one unit, the design reduces component count and associated costs while maintaining the ability to support various interface standards
3Productivity
If three voltage levels are used for data exchange, then data transmission capability is improved, but interface compatibility becomes more difficult
Solution Approach 1:
The transmission device incorporates dynamic voltage level selection capability through control signal generators that can switch between 1.8V, 3.3V, and 5V output levels. This dynamic adaptability allows the device to match the voltage requirements of different interface standards, maintaining compatibility across various devices while supporting high-speed data transmission through three-phase and single-phase signal modes
Data Source
AI summary
A transmission device of the disclosure includes a first selector configured to select one of a first signal and a second signal, and output the selected signal; a second selector configured to select one of an inversion signal of the first signal, the second signal, and an inversion signal of the second signal, and output the selected signal; a first control signal generator configured to generate a first control signal, a second control signal, and a third control signal, based on the first signal, the second signal, and a third signal; a first driver configured to set a voltage of a first output terminal, based on an output signal of the first selector and the first control signal; and a second driver configured to set a voltage of a second output terminal, based on an output signal of the second selector and the second control signal.