Abstract—The digital implementation of Sinusoidal Pulse Width Modulation (SPWM) generators have dominated over their counterparts based on analog circuits. Here an FPGA based SPWM generator is implemented, which is capable to support the high switching frequencies more than 1 MHZ, thus it is capable to support the high switching frequency requirements of modern single-phase dc/ac power converters. This design occupies a small fraction of a medium sized FPGA and, thus can be integrate in larger designs. In addition to that, it has a flexible architecture that can be implemented to a variety of single-phase dc/ac inverter applications. This experimental results confirm that compared to the past-proposed microcontrollers and DSPs generation unit designs, the SPWM generator exhibits much faster frequency, lower power consumption, and higher accuracy of generating the desired SPWM waveform.

Index Terms—SPWM, DC, AC, FPGA, DSP  

Cite: M Angelin Ponrani and R Vel Murugan, "SPWM GENERATOR BASED ON FPGA FOR HIGH SWITCHING FREQUENCY DC/AC INVERTERS," International Journal of Electrical and Electronic Engineering & Telecommunications, Vol. 4, No. 1, pp. 7-12, January 2015.