3-PHASE INVERTER CONTROLED BY FPGA CHIP USING VECTOR MODULATION TECHNIQUE

Theerayod Wiangtong and Worranart Sangchai

Department of Electronic Engineering

Mahanakorn University of Technology, Bangkok, 10530, Thailand.

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Manuscript received February 17, 2000,

Revised March 13, 2000

 

 


ABSTRACT

This paper presents an application of an ALTERA FPGA Device, in the FLEX10K family, producing Pulse Width Modulation (PWM) signals with the vector modulation technique for an IGBT inverter. Using a single FPGA chip for the practical implementation of the modulator, rather than a system consisting of microprocessor and external memory, has many advantages including less use of power and space, short design time, greater speed and reliability. The designed circuit can generate PWM signals at many different frequencies, and also, the input values used to adjust output signal may be obtained through either a 4x4 keypad or microprocessor port.

 

 

Keywords: PWM, three-phase inverter, FPGA chip

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