基于FPGA的尖峰电流检测方法

For the peak current in the power electronic system, the conventional method of current peak detection is based on the high-speed A/D converter, while the disadvantage is high cost and not suitable for wide application. This paper presents a new methods of peak current detection. Only FPGA controller, high-speed comparator circuit, high-speed sampling circuits, controlled regulator circuit and other sections can meet the requirements of peak current detection. The cost is significantly reduced at the same time. The hardware and software design methods of the detection circuit are elaborated. After some tests, it is confirmed fully meet the detect requirements, and has a good application prospect.