一种基于多路检测的峰值自检电路及方法
By adding peak circuits and frequency divider circuits, combined with a polling mechanism, efficient self-testing of the peak detection circuit is achieved, solving the problem of insufficient self-testing coverage and ensuring the safety of the aviation power system.
CN115567043BActive Publication Date: 2026-07-17SHAANXI AVIATION ELECTRICAL
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHAANXI AVIATION ELECTRICAL
- Filing Date
- 2022-09-29
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
The existing peak detection circuit has insufficient self-test coverage, which can easily lead to failure of civil aviation AC power systems due to the failure of some components or poor soldering, thus affecting flight safety.
Method used
Add a peak circuit holding circuit and a frequency divider circuit, use the discharge cycle signal for high and low level sampling, and adopt a polling mechanism to detect only one peak circuit per cycle, realize the detection of key signals in two cycles, and ensure the real-time performance of the system.
Benefits of technology
This improves the self-test coverage of the peak detection circuit, reduces the probability of failures due to component failures or poor soldering, and ensures the safe operation of the aviation power system.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN115567043B_ABST
Abstract
本发明一种基于多路检测的峰值自检电路及方法，属于航空电气设计领域；包括分压、N个峰值电压保持电路、放电控制、多路转换电路、A / D转换电路、信号处理和放电脉冲电路、分频电路、电压限制电路；N‑1个分压分别接入N‑1个峰值电压保持电路，N个峰值电压保持电路的输出端依次连接多路转换电路、A / D转换电路、信号处理和放电脉冲电路，信号处理和放电脉冲电路产生的周期窄脉冲信号发送至放电控制，放电控制并联于N个峰值电压保持电路的两端；分频电路的输入端与接入信号处理和放电脉冲电路的输出端连接，输出端通过电压限制电路与第N个峰值电压保持电路的输入端连接，引入放电周期窄脉冲信号；本发明解决了峰值检测电路运行自检测覆盖率不足的问题。
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