Results 61 to 70 of about 223,494 (299)

Constant current and ripple control of LED driver without electrolytic capacitor

Dianzi Jishu Yingyong, 2018
When the traditional unloaded boost-buck LED driver power supply has a high power factor, it will produce significant low-frequency ripple current. Based on the buck-boost topology, this paper presents an innovative LED drive power technology.
Chen Chunkai, Li Yinlong
doaj   +1 more source

Built‐In Electric Field Regulated Electron Transport Channels of FeP Supported Os for Ampere‐Level Seawater Electrolysis

Advanced Energy Materials, EarlyView.
This work presents an Os/FeP heterostructure catalyst with EMSI and successfully utilizes the BEF to further modulate electron transfer through Os‐P‐Fe channels, proving an effective approach of developing low‐cost electrocatalysts with remarkable HER activity in ampere‐level seawater electrolysis. ABSTRACT Developing cost‐effective and robust hydrogen
Qing Liu, Yukun Zhang, Zili Liu, Yu Wang, Hongdong Li, Weiping Xiao, Wenli Yu, Lingfeng Zhu, Tianyi Ma, Jun Xing, Wei Jin, Liqun Ye, Lei Wang, Zexing Wu   +13 more
wiley   +1 more source

Sustainable Productivity Growth in Agriculture: The Role of Shifts in R&D Investments and Technology

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT The objective of the paper is to evaluate the long‐term prospects of sustainable productivity growth linked to plausible assumptions on public agricultural R&D investments as the key productivity driver. Second, it investigates the role of changing R&D focus from yield maximization to input saving technologies (fertilizers and pesticides). The
Zuzana Smeets Křístková, Michiel van Dijk, Robert M'Barek, Hans van Meijl, Tomas Ratinger   +4 more
wiley   +1 more source

Extended Analysis of Non-Isolated Bidirectional High Gain Converter

Advances in Electrical and Computer Engineering, 2023
This paper focuses on developing a non-isolated bidirectional high gain converter suited for EV charging. This converter has two ports with bidirectional features which functions in both buck and boost operation.
ANJANA, E., RAMAPRABHA, R.
doaj   +1 more source

PERBANDINGAN KINERJA BUCK-BOOST CONVERTER DUAL OUTPUT DENGAN BUCK-BOOST CONVERTER KONVENSIONAL [PDF]

, 2019
Penelitian ini menguraikan tentang perbandingan kinerja simulasi pada buck-boost converter dual output dengan buck-boost converter konvensional. Buck-boost converter adalah rangkaian penaik dan penurun tegangan DC.
Ardhenta, Lunde, Hasanah, Rini Nur, Ananda, Andhika Dwi   +2 more
core   +1 more source

ANALISIS PERBANDINGAN DOUBLE GAIN BUCK-BOOST CONVERTER DENGAN BUCK-BOOST CONVERTER [PDF]

, 2019
Penelitian ini membahas tentang analisis perbandingan kinerja simulasi pada rangkaian double gain buck-boost converter dengan buck-boost converter.
Sitinjak, Wira Raja, Ardhenta, Lunde, Purnomo, Hery   +2 more
core   +1 more source

Buck-Boost Charge Pump Based DC-DC Converter

Journal of Low Power Electronics and Applications, 2023
This paper presents a novel inductorless dual-mode buck-boost charge pump (CP) based DC-DC converter. The proposed architecture allows the same circuit to accomplish two modes of operation, buck and boost, for degrading or elevating the output voltage ...
Evi Keramida, George Souliotis, Spyridon Vlassis, Fotis Plessas   +3 more
doaj   +1 more source

Unpacking the Farmland Capitalization Effect of Ethanol Establishment

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT We unpack the impact of expansions in ethanol production—as measured by proximity to newly constructed ethanol plants and capacity expansions—on farmland values using land transaction data from Kansas in combination with modern causal inference techniques.
Gabriel S. Sampson, Jisang Yu
wiley   +1 more source

Design of a non-inverting synchronous buck-boost DC/DC power converter with moderate power level

, 2013
This paper presents the design of a non-inverting synchronous buck-boost DC/DC power converter with moderate power level for a solar power management system.
Shiau, Jaw-kuen, Shiau, Jaw-kuen; Cheng, Chun-jen   +1 more
core   +1 more source

Crop Insurance Design and On‐Farm Risk Adaptation

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT The United States spends billions annually on crop insurance premium subsidies, yet the prevailing distance‐based guarantee design unintentionally rewards risk‐taking by linking subsidies to yield variability. We consider a simple redesign: define guarantees in terms of probability so that coverage reflects a consistent likelihood of indemnity.
Gerald Van Tassell, Alan P. Ker
wiley   +1 more source