A kind of three-phase reference sine wave signal generator based on DSP digital oscillator is designed.The system is composed of TMS320VC5416 minimum system,three TLC320AD50C chips and simple peripheral circuits.The system software and hardware design are introduced briefly in this paper.Three-phase predefined reference sine waves can be obtained by DSP digital oscillator technology and the design object is fulfilled.The experimental results show that the system has the characteristics of simple structure,high frequency precision, good symmetry, low waveform distortion, high-resolution, great ...