The Design Of Three-Phase Sinusoidal Inverter Power Supply Based On FPGA

This artical emphasizes on studying and designing a kind of three-phase sinusoidal inverter power supply based on FPGA,inverting alternating current with voltage of 220V and frequency of 50Hz to one with adjustable scope and frequency in a certain extent, which will be supplied for the usage of other electronic equipment.The main content of this article contains hardware design and control system design. Hardware design mainly covers inverting, commuting, buck and every function module electrocircuit inverting and electrocircuit driving and so on. In the aspect of controlling system software design, the way of top-down FPGA is used to divide their controlling system functionally, DDS technique is used to engender standard sine wave and triangle wave, then the high speed comparing module will compare the scope and deferent triangle wave and sine wave, producing the needed SPWM wave shape, which will analyze its producing mechanism in view of in the stimulation and the experimental burr phenomenon and the dead area question, and offer an usal solution way, improving the system performance.