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The Implementtation of Modulation Signals in a SPWM Mode Based on ATmega8

Qu Liyang

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Abstract

Aiming at the hardware system to produce SPWM(Sine Pulse Wave Modulation)wave has some weakness including large discreteness,complex circuit and difficult control,introduces a method to generate SPWM wave by ATmega8 microcontroller in phase correct PWM model.Using the equivalence principle to generate SPWM pulse,which will be applied to the single-phase inverter power.Experimental result shows that the wave is well,and the method to produce SPWM wave is feasible and effective.

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What this paper is about

Aiming at the hardware system to produce SPWM(Sine Pulse Wave Modulation)wave has some weakness including large discreteness,complex circuit and difficult control,introduces a method to generate SPWM wave by ATmega8 microcontroller in phase correct PWM model.Using the equivalence principle to generate SPWM pulse,which will be applied to the single-phase inverter power.Experimental result shows that the wave is well,and the method to produce SPWM wave is feasible and effective.

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Available abstract

Aiming at the hardware system to produce SPWM(Sine Pulse Wave Modulation)wave has some weakness including large discreteness,complex circuit and difficult control,introduces a method to generate SPWM wave by ATmega8 microcontroller in phase correct PWM model.Using the equivalence principle to generate SPWM pulse,which will be applied to the single-phase inverter power.Experimental result shows that the wave is well,and the method to produce SPWM wave is feasible and effective.

Key concepts: Pulse-width modulation, Inverter, Sine wave, Electronic engineering, Pulse wave, Control theory (sociology), Modulation (music), Computer science

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