Proceedings ArticleDOI
Analysis, design and implementation of soft switching in a synchronous converter
R. M. Amarsagar Reddy,N. Lakshminarasamma +1 more
- pp 1-6
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This paper analyzes the steady state operation of a Synchronous Soft Switched Buck Converter which has the advantages of both synchronous switching and soft switching and employs an auxiliary circuit to achieve soft switching.Abstract:
This paper analyzes the steady state operation of a Synchronous Soft Switched Buck Converter which has the advantages of both synchronous switching and soft switching This topology employs an auxiliary circuit to achieve soft switching The auxiliary circuit consists of a dependent voltage source, an auxiliary switch, a resonant diode, a resonant inductor and a resonant capacitor The dependent voltage source is realized by a mutually coupled inductor In this topology, the switching transitions of the active switch, the synchronous switch and the auxiliary switch are lossless The design guidelines are presented and a 33 Watt converter is designed, simulated and fabricated to validate the operation of the converter A microcontroller is used to generate the switching pulses An improvement of 6% in efficiency is observed over traditional topologiesread more
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Proceedings ArticleDOI
Analysis and Investigation of a Soft-Switched Synchronous Buck Converter
TL;DR: In this article, a soft-switched structure for the synchronous buck converters is proposed and analyzed, and the proposed converter is compared with other softswitched synchronous converters and the results are investigated comprehensively.
References
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Journal ArticleDOI
Novel zero-voltage-transition PWM converters
TL;DR: In this paper, a class of zero voltage transition (ZVT) power converters is proposed in which both the transistor and the rectifier operate with zero voltage switching and are subjected to minimum voltage and current stresses.
Proceedings ArticleDOI
A complete DC analysis of the series resonant converter
Vatche Vorperian,Slobodan Cuk +1 more
TL;DR: In this article, the dc-to-dc conversion ratio of the series resonant converter has been determined in the general discontinuous and continuous condection modes, and a complete description of the dc operation of the circuit for any load and for any switching frequency.
Proceedings ArticleDOI
A unified analysis of converters with resonant switches
Steve Freeland,R.D. Middlebrook +1 more
TL;DR: In this article, the authors derived the dc conversion ratio of a quasi-resonant converter in terms of the well-known PWM topology and derived a small-signal, low-frequency dynamic model whose parameters also incorporate the PWM conversion ratio.
Proceedings ArticleDOI
High frequency synchronous buck converter for low voltage applications
O. Djekic,M. Brkovic,A. Roy +2 more
TL;DR: In this paper, the effect of dead time delays on the efficiency of a 1 MHz low voltage, synchronous buck power converter was investigated and the overall efficiency was calculated as a function of the load current and the switching frequency with the dead time as a parameter.