Signal Transfer Circuit With Adaptive Voltage Path Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Semiconductor devices face signal transmission errors due to the use of operating power sources with different voltage levels, leading to instability in signal recognition and transmission between circuits.
Innovation Solution
A signal transfer circuit that detects the voltage level difference between the operating power source and input signal, and adjusts the transmission path accordingly, using a combination of NMOS and PMOS transistors to ensure stable signal transmission by setting appropriate voltage levels and controlling switches based on detected voltage levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If signals are transmitted between circuits using different voltage levels, then device complexity is reduced, but signal transmission reliability deteriorates due to recognition errors
Solution Approach 1:
A voltage level conversion circuit is introduced as an intermediary between circuits operating at different voltage levels. This converter detects the voltage level of incoming signals and dynamically switches between different transmission paths to ensure proper voltage level matching, thereby maintaining signal transmission reliability while allowing circuits to operate at different voltage levels
Solution Approach 2:
The signal transfer circuit employs dynamic voltage level detection and adaptive path switching mechanisms. The circuit continuously monitors input signal voltage levels and adjusts its internal switching state in real-time to match the appropriate output voltage level, enabling reliable transmission across varying voltage conditions
2Reliability
If voltage level detection and path switching circuits are added, then signal transmission reliability is improved, but device complexity increases
Solution Approach 1:
The voltage level detection function and signal path switching control are merged into a single integrated circuit unit. The detection circuit and switching circuit share common components and control logic, allowing the system to achieve reliable voltage level adaptation without proportionally increasing overall circuit complexity
Solution Approach 2:
The signal transfer circuit is designed with multi-functional capabilities, where a single circuit block performs both voltage level detection and path switching operations. This universal design allows one circuit to handle multiple voltage level scenarios (both higher and lower voltage inputs) without requiring separate dedicated circuits for each case
Data Source
AI summary
A signal transfer circuit for receiving a first signal to transfer the received first signal as a second signal by using an operating power source having a second voltage level, the signal transfer circuit may include: a first setting circuit; and a second setting circuit, the first signal may swing between a first voltage level and a ground level, and the second signal may swing between a third voltage level and the ground level, the first setting circuit may be configured to set the third voltage level to be same as the second voltage level, when the first voltage level is higher than the second voltage level, and the second setting circuit may be configured to set the third voltage level to be same as the first voltage level, by detecting when the first voltage level is lower than or equal to the second voltage level.