基于FPGA的数字电源调节器研究与设计

Research and Design of Digital Power Supply Regulator Based on FPGA

详细描述了基于FPGA方案的数字电源调节器。首先介绍了数字调节器的硬件功能模块设计,重点对用于采样电源输出电流的高速高精度AD7634的工作原理做了描述,并给出了AD7634采集一个电压信号的工作波形;其次介绍了数字调节器的软件设计,包括调节器算法、功能以及在FPGA内的实现方法;最后,以一台15 A/15 V校正磁铁电源为样机,进行了闭环调节实验,给出了测试结果。

The digital regulator of power supply based on FPGA is described in detail.Firstly,the hardware modules design of it is introduced,especially,the operation principle of AD7634 which is used for sampling output current of power supply with high speed and high precision is mainly presented,and the voltage waveforms that AD7634 sampled is given at the same time.Secondly,the software design of the digital regulator is described,including regulator algorithm and function,and also the method of how to realize the algorithm with FPGA is given.Finally,the closed loop control is carried out with a 15 A/15 V rectification magnet power supply as a prototype,and measurement results are given,too.