In this paper a repetitive control (RC) approach to improve current sharing between parallel-connected boost converters in DC microgrids is presented. The impact of changes in line impedance on current sharing is investigated. A repetitive controller is designed and connected in series with current controller of the boost converters to control the switching signals such that by regulating of th...

This paper describes design of high energy efficiency 32 bit parallel processor core using instructtion-levels data gating and dynamic voltage scaling (DVS) techniques. We present instruction-levels data gating technique. We can control activation and switching activity of the function units in the proposed data technique. We present instruction-levels DVS technique without using DC-DC converte...

We present a strategy to develop in a functional setting cor rect e cient and portable Divide and Conquer DC programs for mas sively parallel architectures Starting from an operational DC program mapping sequences to sequences we apply a set of semantics preserving transformation rules which transform the parallel control structure of DC into a sequential control ow thereby making the implicit ...

The new pyrrolo-dC derivative 4 tethered with an alkylamino side chain via a triazole linker was synthesized. Oligonucleotides containing the G-clamp 3 or the pyrrolo-dC derivative 4 were prepared. Oligonucleotide synthesis and deprotection under standard conditions led to unwanted side product formation. The side product was identified as an acrylonitrile adduct of the aminoalkyl side chain. C...

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This paper discusses our initial efforts in constructing physics of failure models for electrolytic capacitors subjected to electrical stressors in DC-DC power converters. Electrolytic capacitors and MOSFET’s are known to be the primary causes for degradation and failure in DC-DC converter systems. We have employed a topological energy based modeling scheme based on the bond graph (BG) modeling...

Soft Switcing techniques have recently been applied in the design of dc-ac converters, in order to achive better performance, higher efficiency, and power density. One of the soft switching techniques uesd in inverters is resonant dc links. These topologies have some disadvantages such as irregular current peaks, large voltage peaks, uncotrollble pulse width, etc. Another soft switching method ...

This paper proposes a new adaptive instantaneous average current sharing technique for load and minimizing circulating among parallel-connected converters in LV islanded DC microgrid. control is common parallel inverters AC systems, however, its use networks has not been reported the open literature. Unfortunately, conventional controller does come up with expected improvements terms of regulat...