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International Journal of New Technology and Research

Impact Factor 3.953

(An ISO 9001:2008 Certified Online Journal)
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FPGA Based High Frequency PWM Waveform Generator Controller With Variable Duty Cycle

( Volume 2 Issue 4,April 2016 ) OPEN ACCESS

M Vinoth Kumar , Archit Malhotra, Kuldeep Kumar Tandewal, Sharon Shalini Tewari, Rahul Pandey


Field Programmable Gate Arrays (FPGA) provides very good hardware design flexibility. This paper specifies the generation of PWM signals for variable duty cycles using VHDL. The project employs the use of Spartan3e board. The PWM waveform generated is integrated with the MATLAB module to show simulation and after that the comparison with the arduino board. Pulse Width Modulation found in large number of applications as a voltage controller. It is used in controlling output voltage of inverter in most of the applications.PWM has a fixed frequency and a variable voltage. Voltage value changes from 0V to 5 V. The advantage of this method is that it is used to generate High-frequency variable duty cycle PWM output. The VHDL code is written and synthesized using Xilinx ISE. Behavioral simulation was performed and the results are verified by downloading the code into SPARTAN 3 FPGA. Pulse-Width modulation is commonly used in industrial applications for electrical motor control but is also used in audio applications, such as compact class-D power amplifiers, and drivers for light source based on light emitting diodes our main focus in this project is to control speed of DC motor at high frequency.


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