Research of power source calibrating device of high voltage parameters based on DDS

Power source equipment as an important category of device, is widely applied in the fields of communications, detection, navigation, and especially in high-voltage power system. To assess the performance of high-voltage parameter power source as well as to verify its parameters, based on DDS technology, a calibrating device is designed through FPGA. This device can generate signal sources with multi-phase, frequency, and adjustable amplitude, and through power amplifier and high voltage test transformer, the original sources are transformed into 6kv-35kv high voltage standard sources, by which can check the power source. The experiments show that the performance and precision of the calibration device meet the design requirements, with the characteristics of user-friendly and reliable.