Design and construction of a 12Vrms 50W electronic transformer with programmable switching frequency control


Authors

DOI:

https://doi.org/10.22517/23447214.24251

Keywords:

AC-AC converters, MOSFET, programmable control, Switching frequency, transformers

Abstract

In order to reduce size and weight, alternatives have been implemented to scale voltage levels of the electrical network, maintaining high efficiency and low distortion. The purpose of this article is to present the results of the design and construction of an electronic transformer controlled by a microcontroller (μC). The characterization of a resonant transformer with a ferrite core was carried out, and simulations were developed with the real models of the electronic elements to validate the design stage. The prototype that switches to different frequencies with dead time of 2μs was built, obtaining as a result, an output signal of 12Vrms that operates for resistive loads that consume from 0 to 50W with an efficiency ( ) approximately 94%. The results show the viability of developing programmable electronic transformers, which unlike resonant electronic transformers, allow to work at any power value designed without depending on a load.

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Author Biographies

Nelson Enrique Trillos León, Universidad Industrial de Santander

Nelson Enrique Trillos León nació en Bucaramanga, Colombia. Es Ingeniero Electrónico egresado de la Universidad Industrial de Santander (Bucaramanga, Colombia). Las áreas de interés investigativo incluyen el diseño, construcción y desarrollo de dispositivos electrónicos y de telecontrol. Posee experiencia en desarrollo de proyectos de investigación, desarrollo e innovación (I+D+I). Actualmente se desempeña
como consultor experto y certificado en automatización inteligente y es integrante activo del grupo de investigación RadioGIS.

Jaime Guillermo Barrero Pérez, Universidad Industrial de Santander

Jaime Guillermo Barrero Pérez es ingeniero electricista, especialista en docencia universitaria y magister en potencia eléctrica de la Universidad Industrial de Santander (Bucaramanga, Colombia). Es profesor titular de la Escuela de Ingenierías Eléctrica, Electrónica y de Telecomunicaciones de la Universidad Industrial de Santander. Es integrante del grupo de investigación CEMOS. Las áreas de interés investigativo incluyen sistemas de potencia y electrónica industrial.

Jorge Eliecer Gómez Pinto, Universidad Industrial de Santander

Jorge Eliecer Gómez Pinto nació en Bogotá, Colombia. Es Ingeniero Electrónico egresado de la Universidad Industrial de Santander (Bucaramanga, Colombia). Su enfoque profesional está dedicado a la investigación, mantenimiento, diseño y nuevas tecnologías en el área de Wireline. Actualmente se desempeña como jefe de mantenimiento y control en base Expro Colombia.

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Published

2020-09-30

How to Cite

Trillos León, N. E., Barrero Pérez, J. G., & Gómez Pinto, J. E. (2020). Design and construction of a 12Vrms 50W electronic transformer with programmable switching frequency control. Scientia Et Technica, 25(3), 358–366. https://doi.org/10.22517/23447214.24251

Issue

Vol. 25 No. 3 (2020)

Section

Eléctrica

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