一种可重构多模态传感器前端接口电路
By designing a reconfigurable multimodal sensor front-end interface circuit and utilizing mode switching and feedback compensation techniques, the problems of large area and low reuse rate of traditional interface circuit systems are solved, achieving low-cost and high-efficiency multimodal signal measurement and reducing circuit complexity and power consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI JIAOTONG UNIV
- Filing Date
- 2023-02-14
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional reconfigurable sensor front-end interface circuit system chips have large areas and low reusability, making it difficult to complete the interface circuit design of various sensor application systems in a short time and at low cost.
A reconfigurable multimodal sensor front-end interface circuit is adopted, including a first-stage reconfigurable amplifier, a second-stage reconfigurable amplifier, an excitation current source, a switch, and a mode switching controller. The mode switching controller controls the switching of the switch to realize the measurement of three mode signals: voltage, current, and impedance. The circuit design is optimized by combining feedback compensation loop and chopper modulation technology.
A sensor interface circuit with small chip area, low power consumption and high reusability has been realized, which simplifies circuit design, increases the measurable range, reduces production and time costs, and reduces the impact of low-frequency noise in the circuit.
Smart Images
Figure CN116192058B_ABST