Results 11 to 20 of about 420,285 (299)

Task Switching in Predictable and Unpredictable Cases [PDF]

open access: yes, 2010
Fourteen experiments have been run in order to provide evidence regarding the cognitive processes that underlie the switching between simple cognitive tasks.
Andreadis, Nikolaos
core   +7 more sources

A capacitor voltage self‐balancing method of modular multilevel converters based on switching state matrix construction

open access: yesIET Power Electronics, 2023
This study presents a submodule capacitor voltage self‐balancing method for modular multilevel converters (MMCs) based on switching state matrix construction, which has an advantage over eliminating massive sensor demanding and alleviating computational ...
Zhou Yiyuan   +7 more
doaj   +1 more source

Soft switch-avalanche IGBT convertor

open access: yesElectronics Letters, 1990
A full bridge dc-dc converter using a zero voltage and zero current switching technique is described. This circuit utilizes the characteristics of the IGBT to achieve power and frequency combinations that are much higher than those previously reported for this device.
K. Chen, T.A. Stuart
openaire   +1 more source

Depth comparison of common inductor and common capacitor passive current sharing methods for multiphase LLC converter

open access: yesIET Power Electronics, 2023
Common inductor (CIM) and common capacitor (CCM) passive current‐sharing methods have the advantages of simple implementation and low cost. However, there is still a lack of detailed comparative research on the two methods, which makes researchers ...
Zhifeng Sun   +5 more
doaj   +1 more source

IGBT convertor with active snubber for soft switching

open access: yesElectronics Letters, 1991
This full bridge dc-dc convertor with IGBTs uses zero voltage switching (ZVS) for one leg of the bridge and zero current switching (ZCS) for the other. It is shown that an active snubber greatly improves the performance over previous methods. Experimental results are shown for a 6 kW circuit switching at 20 kHz.
B.J. Masserant, J. Shriver, T.A. Stuart
openaire   +1 more source

Design of Optimal QFT Controller and Prefilter for Buck Converter Using Metaheuristic Algorithms

open access: yesModelling and Simulation in Engineering, 2018
A buck converter is a step-down switching regulator. Buck convertors are being widely used in industrial applications that rely on regulated output voltage under fluctuating input voltage.
Nitish Katal, Shiv Narayan
doaj   +1 more source

Characteristic curves for analysing limit cyclebehaviour in switching convertors

open access: yesElectronics Letters, 1999
The concept of characteristic curves (CCs) for analysing the behaviour of limit cycles in elementary DC-DC switching converters is introduced. The CC is derived by considering opposite vector fields in the on and off configurations. Feedback regulated converters with PWM or hysteresis control are investigated using this approach.
L. Benadero   +4 more
openaire   +1 more source

Improved switched-capacitor algorithmic analogue-to-digital convertor

open access: yesElectronics Letters, 1985
A novel switched-capacitor circuit is presented for algorithmic analogue-to-digital conversion. Besides the reduced component count, the proposed circuit shows that it can accept a differential analogue signal. A conversion accuracy higher than 12 bits is easily attainable with its integrated version.
H. Matsumoto, K. Watanabe
openaire   +1 more source

New bilinear switched-capacitor immittance convertor circuit

open access: yesElectronics Letters, 1980
A new switched-capacitor immittance convertor circuit is proposed which enables the conversion of the capacitive (n+1)-terminal networks into the corresponding bilinearly equivalent inductive (n+1)-terminal networks. The proposed immittance converter circuit requires only two operational amplifiers and five capacitors.
T. Inoue, F. Ueno
openaire   +1 more source

Code Switching and Code Mixing In Indonesian Language Learning at The Junior High School Level [PDF]

open access: yes, 2023
This study aims to explain and describe the results of observations carried out at SMP Negeri 1 Sanrobone. Based on the results of these observations or research, it is known that in the Indonesian language learning process many or often use code ...
Dewi, Anita Candra; Universitas Negeri Makassar   +1 more
core   +1 more source

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