Results 91 to 100 of about 366,320 (298)

Realization of a Photovoltaic Fed Sparse Alternating Current (AC)-Link Inverter

open access: yesThe Journal of Engineering Research, 2016
In this paper, a soft-switched alternating current (AC)-link buck-boost inverter with a reduced number of switches, referred to as a sparse AC-link buck-boost inverter, was designed and implemented for a photovoltaic (PV) interface. Important features of
R. Ramaprabha   +3 more
doaj   +1 more source

?????? ?????? ?????? ????????? ?????? ???????????? ??????-?????? DC-DC Buck-Boost ?????????

open access: yes, 2019
This paper presents a high performance DC-DC buck-boost converter by voltage-mode method. In a wide input voltage range, the converter operates in boost-mode, buck-boost mode and buck-mode. The converter is implemented in a TSMC 0.18um BCD process.
Choi, Yun Young   +3 more
core  

The Herfindahl neutral point: A firm‐level threshold for managing market concentration with evidence from US hog packing

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract This paper derives a firm‐level threshold, the Herfindahl Neutral Point, from the standard concentration index used in merger review. At this threshold, a marginal expansion leaves the index unchanged. Firms below the threshold reduce concentration when they expand; firms above it increase concentration.
Andrew J. Keller, Krishna P. Paudel
wiley   +1 more source

Topological Design and Modulation Strategy for Buck-Boost Three-Level Inverters

open access: yes, 2009
Udgivelsesdato: JulyTo date, designed topologies for dc-ac inversion with both voltage buck and boost capabilities are mainly focused on two-level circuitries with extensions to three-level possibilities left nearly unexplored.
Loh, Poh Chiang   +12 more
core   +1 more source

Crop insurance and irrigation behavior: The conditional role of pumping costs

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Excessive water use for irrigation can accelerate the depletion of water resources, undermining agriculture's resilience to weather‐related shocks. Understanding how farmers make water use decisions is essential for developing effective water management policies.
Sungmin Cheu, Molly Sears
wiley   +1 more source

Performance analysis of buck, boost, and buck-boost converters under variable load conditions

open access: yesWorld Journal of Advanced Research and Reviews, 2020
This paper presents a comprehensive performance analysis of three fundamental DC-DC power converter topologies: Buck, Boost, and Buck-Boost converters under variable load conditions. The study examines efficiency characteristics, voltage regulation, transient response, and thermal performance across different loading scenarios. Through detailed circuit
openaire   +1 more source

Switch ON mode of the non-inverted buck-boost converter.

open access: yes, 2022
Switch ON mode of the non-inverted buck-boost converter.
Rini Akmeliawati (718330)   +6 more
core   +1 more source

Risk management externalities in agrifood supply chains

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Firms may under‐ or over‐invest in risk management from the social planner's perspective, resulting in a negative externality on other economic agents in the supply chain. The externality of risk management is particularly relevant for agrifood supply chains, which frequently experience disruptions and play a primary role in preventing major ...
Jeffrey Hadachek, Meilin Ma
wiley   +1 more source

A Modified Topology of Two-Switch Buck-Boost Converter

open access: yesIEEE Access, 2017
Two-switch buck-boost (TSBB) is one of the non-isolated dc-to-dc converters that can change its mode from among buck, boost, and buck-boost modes. Changing its mode is possible by controlling gate signals. This paper presents a novel modified topology of
Byunghee Moon   +3 more
doaj   +1 more source

Positive buck-boost converter

open access: yes, 2009
Through the increasing advancement in technologies, more devices are designed with better efficiency and additional functionality. With the increasing demand for low-voltage devices, superior and efficient power management techniques are entrenched into ...
Hong, Zu Xin.
core  

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