scholarly journals High power factor in epitaxial Mg2Sn thin films via Ga doping

2021 ◽  
Vol 119 (25) ◽  
pp. 254101
Author(s):  
Mariana S. L. Lima ◽  
Takashi Aizawa ◽  
Isao Ohkubo ◽  
Takahiro Baba ◽  
Takeaki Sakurai ◽  
...  
Keyword(s):  
Thin Films ◽  
Power Factor ◽  
High Power ◽  
High Power Factor ◽  
Ga Doping

Highly (00l)-oriented Bi2Te3/Te heterostructure thin films with enhanced power factor

Nanoscale ◽  
2018 ◽  
Vol 10 (43) ◽  
pp. 20189-20195 ◽  
Author(s):  
Hong-Jing Shang ◽  
Fa-Zhu Ding ◽  
Yuan Deng ◽  
He Zhang ◽  
Ze-Bin Dong ◽  
...  
Keyword(s):  
Thin Films ◽  
Power Factor ◽  
High Power ◽  
High Power Factor ◽  
Filtering Effect ◽  
Energy Dependent

A high power factor was obtained in highly (00l)-oriented Bi2Te3/Te heterostructure thin films via energy-dependent carrier filtering effect.

scholarly journals Stable n-type thermoelectric multilayer thin films with high power factor from carbonaceous nanofillers

Nano Energy ◽  
2016 ◽  
Vol 28 ◽  
pp. 426-432 ◽  
Author(s):  
Chungyeon Cho ◽  
Mario Culebras ◽  
Kevin L. Wallace ◽  
Yixuan Song ◽  
Kevin Holder ◽  
...  
Keyword(s):  
Thin Films ◽  
Power Factor ◽  
High Power ◽  
Multilayer Thin Films ◽  
High Power Factor

High Power Factor Based Novel Design of Sodium Lamps

2010 ◽  
Vol 4 (2) ◽  
pp. 1-6
Author(s):  
S. Sankar ◽  
◽  
G. Gokula Krishnan ◽  
Keyword(s):  
Power Factor ◽  
High Power ◽  
High Power Factor ◽  
Novel Design

scholarly journals A Novel Single-Switch Single-Stage LED Driver with Power Factor Correction and Current Balancing Capability

Electronics ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1340
Author(s):  
Yih-Her Yan ◽  
Hung-Liang Cheng ◽  
Chun-An Cheng ◽  
Yong-Nong Chang ◽  
Zong-Xun Wu
Keyword(s):  
Power Factor ◽  
High Power ◽  
Pulse Width Modulation ◽  
Power Factor Correction ◽  
Harmonic Distortion ◽  
Boost Converter ◽  
Single Stage ◽  
Led Driver ◽  
Flyback Converter ◽  
High Power Factor

A novel single-switch single-stage high power factor LED driver is proposed by integrating a flyback converter, a buck–boost converter and a current balance circuit. Only an active switch and a corresponding control circuit are used. The LED power can be adjusted by the control scheme of pulse–width modulation (PWM). The flyback converter performs the function of power factor correction (PFC), which is operated at discontinuous-current mode (DCM) to achieve unity power factor and low total current harmonic distortion (THDi). The buck–boost converter regulates the dc-link voltage to obtain smooth dc voltage for the LED. The current–balance circuit applies the principle of ampere-second balance of capacitors to obtain equal current in each LED string. The steady-state analyses for different operation modes is provided, and the mathematical equations for designing component parameters are conducted. Finally, a 90-W prototype circuit with three LED strings was built and tested. Experimental results show that the current in each LED string is indeed consistent. High power factor and low THDi can be achieved. LED power is regulated from 100% to 25% rated power. Satisfactory performance has proved the feasibility of this circuit.

Voltage-sharing converter to supply single-phase asymmetrical four-level diode-clamped inverter with high power factor loads

2010 ◽  
Vol 25 (10) ◽  
pp. 2507-2520 ◽  
Author(s):  
Arash A. Boora ◽  
Alireza Nami ◽  
Firuz Zare ◽  
Arindam Ghosh ◽  
Frede Blaabjerg
Keyword(s):  
Power Factor ◽  
High Power ◽  
Single Phase ◽  
High Power Factor
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