IMPROVEMENT OF AVERAGED DC-DC CONVERTER MODEL

  • Марина [Marina] Аркадьевна [A.] Амелина [Amelina]
  • Сергей [Sergey] Александрович [A.] Амелин [Amelin]
  • Олег [Oleg] Александрович [A.] Фролков [Frolkov]
Keywords: switch-mode power supplies, BUCK converter, state-space averaging (SSA), averaged model, сontinuous conduction mode (CCM) and discontinuous conduction mode (DCM), Micro-Cap

Abstract

Features of averaged models of DC-DC converters are considered, advantages and shortcomings are noted them. It is shown that the existing averaged models (Ben-Yaakov model, Vorperian model, Erickson-Maksimovich model) can lead to essential errors of modeling in some operating modes of the DC-DC converters. The model, free from the specified shortcomings is offered. In particular, this model for the buck converter correctly works even in a case when the output voltage is greater than the input, and also for duty factor of the control pulses significantly more than 0,5. The comparative analysis of models is carried out and advantages of the offered model are shown.

Information about authors

Марина [Marina] Аркадьевна [A.] Амелина [Amelina]

Science degree: Ph.D. (Techn.)
Workplace Electronics and Microprocessor Technology Dept., Branch of NRU MPEI in Smolensk
Occupation associate professor

Сергей [Sergey] Александрович [A.] Амелин [Amelin]

Science degree: Ph.D. (Techn.)
Workplace Electronics and Microprocessor Technology Dept., Branch of NRU MPEI in Smolensk
Occupation associate professor

Олег [Oleg] Александрович [A.] Фролков [Frolkov]

Workplace Branch of NRU MPEI in Smolensk
Occupation Director of the Engineering Center

References

1. Middlebrook D., Cuk S. A general unified approach to modeling switching-converter power stages // Intern. J. Electronics. 1977. V. 42. N 6. P. 521 — 550.
2. Christophe P. Basso switch-mode power supplies spice simulations and practical designs. McGraw-Hill Companies, 2008.
3. Амелина М.А., Амелин С.А. Программа схемо-технического моделирования Micro-Cap. Версии 9, 10. СПб.: Изд-во Лань, 2014.
Published
2018-12-14
Issue
No 2 (2016): Выпуск № 2
Section
Electrical Engineering (05.09.00)