采用插值DDS设计的程控功率源,在使用同等大小的查找表的情况下,提高了输出的精度,同时保持了传统DDS在电路参数的控制,变频相位的连续性,变频变相响应时间,精度等方面都具有很高的性能,可用于电力系统的交流采样装置、继电保护装置和高精度标准源等,具有较好的应用。 The program-controlled power source designed by interpolation DDS improves the output precision while using the same size look-up table, while maintaining the control of the traditional DDS in the circuit parameters, the continuity of the frequency conversion phase, the response time and accuracy of the inverter Has a very high performance, can be used for power system AC sampling device, relay protection devices and high-precision standard source, has a good application.