Using FPGA and CPLD ICs to Achieve High-Frequency PWM
PWM (Pulse width modulation) has been widely used in power converter control. This paper is the development of a high-frequency PWM generator architecture for power converter control using FPGA and CPLD ICs. The proposed architecture is based on a special design synchronous binary counter and can be easily interfaced to a microcontroller or DSP system. The resulting PWM frequency depends on the target FPGA or CPLD device speed grade and the duty cycle resolution requirements.
W. Fu and H. B. Yu, "Using FPGA and CPLD ICs to Achieve High-Frequency PWM", Advanced Materials Research, Vols. 271-273, pp. 314-319, 2011