Seven-level inverter with switched capacitors
The Journal of Engineering, 2019 The seven-level (7L) inverter with a nearly sinusoidal output voltage is suitable for renewable energy conversion applications. A novel 7L inverter topology with switched capacitors is proposed here.
Xuezhi Wu +5 more
doaj +1 more source
Analysis and Control of Electrolytic Capacitor-Less LED Driver Based on Harmonic Injection Technique
Energies, 2018 AC-DC LED drivers may have a lifespan shorter than the lifespan of LED chips if electrolytic capacitors are used in their construction. Using film capacitors solves this problem but, as their capacitance is considerably lower, the low-frequency ripple ...
Mahmoud Nassary +4 more
doaj +1 more source
A dimmable light-emitting diode (LED) driver with mag-amp postregulators for multistring applications [PDF]
, 2011 Current imbalance should be avoided when multiple LED strings are connected in parallel. In this paper, a dimmable LED driver with magnetic-amplifier postregulators for multistring applications is presented.
Chen, W, Hui, SYR
core +1 more source
Nonlinear Dimming and Correlated Color Temperture Control of Bi-Color White LED Systems [PDF]
, 2015 This paper proposes a nonlinear approach of controlling the luminous intensity and correlated color temperature (CCT) of white light-emitting diode (LED) systems with dual color temperatures. This LED system is made up of a warm color LED source (2700 K)
Chen, H, Hui, SYR, Tan, SC
core +1 more source
A capacitor mismatch calibration scheme for SAR ADC based on genetic algorithm
Electronics Letters, 2023 Capacitor mismatch problem due to process variation causes weight error, which deteriorates the linearity of SAR ADC. In this paper, a novel calibration scheme based on genetic algorithm(GA) combined with a radix‐less‐than‐2 SAR ADC is proposed to ...
Yujia Huang +4 more
doaj +1 more source
Elimination of an Electrolytic Capacitor in AC/DC Light-Emitting Diode (LED) Driver With High Input Power Factor and Constant Output Current [PDF]
, 2012 published_or_final_versio
Chen, W, Hui, SYR
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Islanding detection in three-phase and single-phase systems using pulsating high-frequency signal injection [PDF]
, 2015 This paper analyzes the use of pulsating high-frequency signal injection for islanding detection purposes. Active islanding detection using high-frequency signal injection is an appealing option due to its reduced nondetection zone, reduced cost, and ...
Blanco Charro, Cristian +3 more
core +2 more sources
Realization of a resistor-less CMOS super capacitor-multiplier using modified-current conveyors
e-Prime: Advances in Electrical Engineering, Electronics and EnergyThis paper presents the realization of a CMOS-grounded positive and negative capacitance multiplier (CM) with an extremely high multiplication factor. The proposed CM is primarily constructed by cascading configurable modified second-generation current ...
Ahmed Reda Mohamed, Muneer A. Al-Absi
doaj +1 more source
Zhongguo dianli, 2019 Three-phase four-switch rectifier has the problem of unbalanced capacitor voltage because one phase of its AC side is directly connected between two capacitor neutral points on the DC side.
Baoge ZHANG, Weijie MA
doaj +1 more source
Power Flow Analysis and Critical Design Issues of Retrofit Light-Emitting Diode (LED) Light Bulb [PDF]
, 2015 published_or_final_versio
Chen, H, Hui, SYR, Li, S, Tan, SC
core +1 more source