Design of Transient Recorder Based on USB 2.0

The paper developed an transient recorder based on USB2.0 interface. It makes full use of the high-speed transfer capability of USB chips and FPGA technology to achieve high-speed acquisition for transient signal in the offline state, and uses FLASH memory to store the large-capacity data. At the same time, the instrument uses the power supply circuit of sensor to supply directly for the external sensor, and uses the lithium battery-powered unit to supply the entire system, so as to enhance its anti-jamming ability. The instrument which can be used for electrical equipment condition monitoring and fault recording features small size, low cost, convenient to use, and achieve a greater success in practical application.