Results 51 to 60 of about 16,944 (286)

A Z-Source Network Integrated Buck-Boost PFC Rectifier [PDF]

open access: yesInternational Journal of Industrial Electronics, Control and Optimization, 2019
This paper presents a wide range gain buck-boost type PFC rectifier based on the conventional buck-boost DC-DC converter. This novel rectifier is fed by a buck-type Z-source network at the DC side with the help of an inductor smoothing the AC side input ...
Mohammad Monfard   +2 more
doaj   +1 more source

Analisis Penerapan Auto Buck/boost Pada Generator Termoelektrik Sebagai Pembangkit Listrik Alternatif [PDF]

open access: yes, 2016
Generator termoelektrik merupakan pembangkit listrik terbarukan yang memanfaatkan perbedaan suhu dua buah semikonduktor untuk dirubah menjadi energi listrik melalui sebuah elemen termoelektrik berdasarkan prinsip efek Seebeck.
Anwar, M. C. (Mohamad)
core   +1 more source

Harmonizing the Pyrene and Ether Groups in Covalent Triazine Polymers for Highly Effective H2O2 Photosynthesis via One‐Step Two‐Electron Oxygen Reduction

open access: yesAdvanced Functional Materials, EarlyView.
The pyrene and ether groups are incorporated into the covalent triazine polymer (CTP) structure. The synergistic effect of the two functional groups endows CTP with better electron transfer, light absorption, and oxygen activation properties. An impressive apparent quantum yield (13.2% @420 nm) and a remarkable solar‐to‐chemical conversion efficiency ...
Chong Wang   +10 more
wiley   +1 more source

Three new DC-to-DC Single-Switch Converters

open access: yesRenewable Energy and Sustainable Development, 2017
This paper presents a new family of three previously unidentified dc-to-dc converters, buck, boost, and buck-boost voltage-transfer-function topologies, which offer advantageous transformer coupling features and low capacitor dc voltage stressing.
Barry W. Williams, Mona Fouad Moussa
doaj   +1 more source

A high efficiency non-inverting multi device buck-boost DC-DC converter with reduced ripple current and wide bandwidth for fuel cell low voltage applications [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2018
The voltage produced by the fuel cell (FC) device is unregulated and varies from 0.4 V to 0.8 V on full load to no-load respectively. When these devices are used in low voltage applications and output voltage lies between higher and lower values of input
Venkatesh Naik M., Samuel Paulson
doaj   +1 more source

Buck-boost dc voltage regulator [PDF]

open access: yes, 1970
Circuit provides voltage regulation through a wide range of operating frequencies without intervals of high power ...
La Vigna, T.
core   +1 more source

Modelling and analysis of switching DC-to-DC converters in constant-frequency current-programmed mode [PDF]

open access: yes, 1979
An analysis of dc-to-dc switching converters in constant-frequency current-programmed continuous conduction mode is performed, and leads to two significant results.
Brown, Art   +3 more
core   +1 more source

Engineering a Sonotherapeutic RBC Membrane‐Derived Nanoparticle Platform for the Treatment of Liver Cancer

open access: yesAdvanced Functional Materials, EarlyView.
Herein, an RBC membrane‐derived nanoparticle (CMN‐ICG) is engineered to efficiently deliver a sonosensitizing agent, indocyanine green (ICG), for sonotherapy of hepatocellular carcinoma (HCC). CMN‐ICG exhibits excellent cytocompatibility, significantly enhances hepatocyte uptake, and produces excessive reactive oxygen species (ROS) upon ultrasound ...
Alap Ali Zahid   +6 more
wiley   +1 more source

Constant current and ripple control of LED driver without electrolytic capacitor

open access: yesDianzi 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

Three-phase ac-dc buck-boost converter with a reduced number of switches [PDF]

open access: yes, 2015
A single-switch, single-stage, three-phase ac-dc buck-boost converter suitable for medium-voltage applications is proposed. Basic relations that govern steady-state converter operation are established, confirmed using PSCAD/EMTDC simulations, and ...
Abdallah Mohamed Abdelsalam, Ibrahim   +3 more
core   +1 more source

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