A localized sampling and detection circuit
By using the domestically produced BR9261 detector chip and peripheral circuit components to form an RC filter circuit, the problems of high cost and inaccurate signal extraction in traditional signal detection circuits are solved, achieving accurate signal extraction and detection, and making it suitable for industrial signal monitoring and low-power embedded acquisition.
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING BBEF SCI & TECH
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-09
AI Technical Summary
Traditional signal detection circuits mostly use imported chips and circuits, which have problems such as high cost, unstable supply and difficulty in domestic substitution. At the same time, the existing sampling method is easily affected by the main circuit, resulting in inaccurate signal extraction and affecting the accuracy of subsequent processing.
Using the domestically produced BR9261 detector chip and peripheral configuration circuit devices, an RC filter circuit is formed by an induction coil, a filter capacitor, and a grounding resistor to achieve signal filtering, impedance matching, and anti-interference. It is particularly suitable for suppressing low-frequency noise and transmitting high-frequency electromagnetic signals.
It achieves accurate signal extraction and detection, reduces system cost and size, and improves the sensitivity and reliability of signal detection. It is suitable for applications such as domestic substitution, industrial signal monitoring, and low-power embedded acquisition.
Smart Images
Figure CN224343176U_ABST