Abstract:

The traditional power supply design has the problems of low switching frequency,high frequency fluctuation,large electromagnetic interference,and can not be adjusted in real time.In this paper the ucd9240 control chip to complete a project of hardware platform of digital power supply scheme,the design of hardware circuit and software configuration parameters,and the theoretical calculation and the actual value were compared.The results show that the design can satisfy the design requirements.

Key words: digital power;UCD9240;PWM controller