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A Method of Producing SPWM Waveform Based on PIC18F248

Jing Shi

Abstract

With the development of the technology of superconducting and power electronics,three-phase current source converter remains its dominant status in superconducting magnetic energy storage field.This paper gives an introduce in detail on a method of sinusoid pulse width modulation for CSC. The method produces SPWM waveform based on MCU PIC18F248.It can provide a certain control accuracy and meet real-time control demand by applying table-consulting and on-line calculation,and gives the flow chart for whole programme.The experimental results verify its validity and feasibility.

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Available abstract

Key concepts: Waveform, Flow chart, Pulse-width modulation, Microcontroller, Electronic engineering, Computer science, Power electronics, Power (physics)