Partial discharge signal sampling circuit with variable sampling frequency based on FPGA (Field Programmable Gate Array)

The utility model discloses an FPGA-based partial discharge signal sampling circuit with variable sampling frequency. The FPGA-based partial discharge signal sampling circuit comprises an ADC data acquisition module, an FPGA field programmable gate array and an upper computer data processing module which are in telecommunication connection in sequence. The FPGA serves as a processing platform of the system and is responsible for control and data exchange of the whole acquisition system, the FPGA is further in telecommunication connection with the storage, and sampled data stored in the storage space is uploaded to a data processing center of an upper computer to be processed based on the data transmission technology. 本实用新型公开了一种基于FPGA的可变采样频率的局放信号采样电路，包括依次电信连接的ADC数据采集模块、FPGA现场可编程门阵列、上位机数据处理模块。FPGA作为系统的处理平台，担负着整个采集系统的控制和数据交流，FPGA还电信连接存储器，基于数据传输技术，将存放于存储空间的采样后数据上传到上位机的数据处理中心进行处理。