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КВАЗИ-ИМПЕДАНСНЫЙ DC/DC ПРЕОБРАЗОВАТЕЛЬ С ПОСЛЕДОВАТЕЛЬНЫМ РЕЗОНАНСНЫМ LC-ЗВЕНОМ И МЯГКОЙ КОММУТАЦИЕЙ

Authors: Vinnikov, Dmitriy; Zakis, Janis; Liivik, Liisa; Rankis, Ivars;

КВАЗИ-ИМПЕДАНСНЫЙ DC/DC ПРЕОБРАЗОВАТЕЛЬ С ПОСЛЕДОВАТЕЛЬНЫМ РЕЗОНАНСНЫМ LC-ЗВЕНОМ И МЯГКОЙ КОММУТАЦИЕЙ

Abstract

This paper discusses further modifications of the recent popular qZS-based DC/DC converter design by the introduction of the resonant LC circuit in series to the primary winding of the isolation transformer. The primary aim is to achieve the zero voltage and zero current switching of transistors. As an additional benefit of the resonant LC circuit, the converter is able to perform the voltage buck function simply by changing the switching frequency of the transistors. The control principle of the converter and its main operating modes are explained. The theoretical assumptions are experimentally verified by help of the small-scale testbench of the converter.

Предложена модификация схемы квази-импедансного DC/DC преобразователя путем последовательного включения резонансного LC-звена и первичной обмотки изолирующего трансформатора. Это позволяет достичь коммутации транзисторов при нулевом токе и нулевом напряжении. К дополнительным преимуществам предложенной схемы DC/DC преобразователя можно отнести способность понижать напряжение путем изменения частоты коммутации транзисторов. Рассмотрен принцип управления преобразователем и его основные режимы работы. Предложенные гипотезы были экспериментально подтверждены с помощью лабораторного макета.

Keywords

qZS-based DC/DC converter; series resonant DC/DC converter; soft switching., квази-импедансный DC/DC преобразователь; DC/DC преобразователь с последовательным резонансным контуром; мягкая коммутация

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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