Electricity (Nov 2024)

Quadratic Boost Converter with Optimized Switching Ripple Based on the Selection of Passive Components

  • Edgar D. Silva-Vera,
  • Julio C. Rosas-Caro,
  • Jesus E. Valdez-Resendiz,
  • Avelina Alejo-Reyes,
  • Omar F. Ruiz-Martinez,
  • Johnny Posada Contreras,
  • Pedro Martín García-Vite

DOI
https://doi.org/10.3390/electricity5040044
Journal volume & issue
Vol. 5, no. 4
pp. 877 – 894

Abstract

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This work introduces a boost converter with quadratic gain. Its main advantage compared to well-known similar quadratic boost converters is that it requires capacitors with a relatively small capacitance and inductors with small inductance, leading to a reduction in the size or stored energy while performing a power conversion of similar power rating and the same switching ripples in both the input current and the output voltage. It is inspired by the recently introduced ISB converter and uses a specific PWM method. This results in achieving switching ripple constraints while using smaller energy storage elements (capacitors and inductors). The updated converter offers the same voltage gain compared to the conventional quadratic boost topology with the benefit of compact component sizes. While it has more passive elements, they are of reduced size. An analysis of energy storage revealed that this new converter uses only half the energy in inductors and 14% in capacitors when compared to specific design parameters.

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