نتایج جستجو برای: مبدل buck

تعداد نتایج: 7238  

Journal: :Electronics 2023

Buck-boost DC–DC converters are useful as DC grid interfaces for renewable energy resources. In the classical buck-boost converter, output voltages smaller than input voltage (the buck region) observed duty cycles between 0 and 0.5. Several recent have been designed to present higher gains. Nevertheless, those topologies show a reduced duty-cycle range, leading in region, thus require use of ve...

ژورنال: :روش های هوشمند در صنعت برق 2014
احسان موحدی مجید دلشاد احسان ادیب

در این مقاله یک مبدل افزاینده سوئیچینگ، فلای بک جدید ارائه گردیده است. در ابتدا مبدل به صورت سخت کلید زنی می شود که در این حالت به صورت کامل تحلیل شده است. سپس مدار کمکی جهت نرم کردن کلیدزنی کلید اصلی آن به مبدل اضافه شده است که مدار کمکی در این مبدل نه تنها شرایط سوئیچینگ نرم را برای کلید اصلی مبدل فراهم می سازد بلکه از جهش های ولتاژ دو سر کلید اصلی در هنگام خاموش شدن در اثر سلف نشتی ترانسفورم...

Journal: :Electronics 2021

Fly-buck converter is a multi-output with the structure of synchronous buck on primary side and flyback secondary side, can be utilized in various applications due to its many advantages. In terms control, fly-buck has same as converter, allowing constant-on-time (COT) control applied converter. However, inherent energy transfer principle, primary-side output voltage regulation COT controlled c...

In this paper, some Contents are presented to simulate the nonlinear converter of the Buck converter. In general, the Buck converter and studies done on it and a control method to obtain the average output voltage for equality with an optimum level, Provided control method includes a series of advantages and disadvantages. To improve disadvantages And also a better result on the output The line...

In this paper, a new transformerless buck-boost converter based on ZETA converter is introduced. The proposed converter has the ZETA converter advantages such as, buck-boost capability and input to output DC insulation. The suggested converter voltage gain is higher than the classic ZETA converter. In the presented converter, only one main switch is utilized. The proposed converter offers low v...

In this paper, a new embedded Z-H (EZ-H) buck-boost converter is proposed. In this topology, two identical dc voltage sources are embedded in a LC network in a series connection with the inductors. The proposed converter eliminates the shoot-through (ST) switching state and there is no need for a front-end diode. Other advantages of the proposed topology are having capability of buck and boost ...

In this paper, a generalized buck-boost Z-H converter based on switched inductors is proposed. This structure consists of a set of series connected switched-inductor cells. The voltage conversion ratio of the proposed structure is adjusted by changing the number of cells and the duty cycle. Like the conventional Z-H converter, the shoot-through switching state and the diode before LC network ar...

Journal: :Current Biology 2015
Steven L. Buck

In this Quick Guide, Steven Buck explains how, uniquely among the bright primary perceptual hues, yellow changes its hue when it appears dark, becoming the colour brown.

2010
DONALD G. AUSTIN

A problem which is appealing to the intuition in view of the relative frequency interpretation of probability is to define a measure on a countable space which assigns to each point the measure 0. Such a measure of course becomes trivial if it is countably additive. Finitely additive measures of this type have been discussed by R. C. Buck [l] and by E. F. Buck and R. C. Buck [2]. In a discussio...

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