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Ingeniería Energética

versión On-line ISSN 1815-5901

Resumen

GUTIERREZ MENENDEZ, Armando Manuel; FERNANDEZ CORREA, Alexander  y  RODRIGUEZ DOMINGUEZ, Yandry. Implementation of electronic ballast with PIC microcontroller for high pressure sodiumlamps. Energética [online]. 2013, vol.34, n.3, pp.208-218. ISSN 1815-5901.

In the present work is offered a prototype of electronic ballast that guarantees the correctly operation in high frequency of a high pressure sodium lamp of 70 W, because it operates free of acoustic resonance (RA). An analysis of the phenomenon of the acoustic resonance is made, deepening in its origin and theoretical prediction. The modulation technique is described in frequency used to avoid this phenomenon, implemented in the microcontrolador of 8 bit PIC16F877 of Microchip, which is activated in dependence of the variation of the electric parameters of the lamp, like they are tension and current. They are shown the stages that give conformation to this prototype, besides the simulations carried out to the main elements that compose the ballast being presented. The practical results reached by the prototype are exposed, which are divided by stages to analyze the correct operation of each a them.

Palabras clave : ballast electronic; high pressure sodium lamp; acoustic resonance.

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