scholarly journals Analysis of the electronic circuits of 11 W and 15 W compact fluorescent lamps

2021 ◽  
Vol 40 (3) ◽  
pp. 501-517
Author(s):  
M.A. Adelabu ◽  
A.L. Imoize ◽  
G.U. Ughegbe
Keyword(s):  
User Interface ◽  
Graphical User Interface ◽  
Maximum Amplitude ◽  
Systems Design ◽  
Performance Characteristics ◽  
Development Environment ◽  
Electronic Ballast ◽  
Fluorescent Lamps ◽  
Compact Fluorescent Lamps ◽  
Lighting Systems

The introduction of electronic ballast in lighting systems design has dramatically revolutionized the lighting space. This is orchestrated by the entrance of the Compact Fluorescent Lamps (CFLs) and Light Emitting Diodes (LEDs) into the lighting market. The CFLs currently being used in domestic and industrial lighting systems provide highly competitive alternatives to conventional incandescent lamps. The electronic ballast incorporated into the CFLs helps eliminate the flickering and slow starting flaws prevalent in traditional fluorescent lamps. To properly evaluate the performance characteristics and limitations of the CFLs, a critical analysis of its electronic circuit becomes imperative. To this end, this paper presents experimental and simulation analyses of the CFL circuits. To achieve this, two Futina CFL bulbs of 11W and 15W model YPZ220/11-BMSP RR/RDD and YPZ220/15-BMSP RR/RDD, respectively, were analyzed and experimentally verified. A function-based programming paradigm was applied to develop a graphical user interface (GUI) used for the circuits analyses. The GUI is designed using MATLAB graphical user interface development environment (GUIDE). Experiments were conducted to obtain the performance characteristics of the CFLs, and measurements show that the 11W lamp has a higher amplitude than the 15W lamp. However, both lamps show similar waveforms after 300 seconds. The maximum voltage amplitudes for both CFLs are the same, with a peak value of 218V. The current waveforms in the spectral domain gave a maximum amplitude of 0.3 A for the 11W CFL and 0.2 A for the 15W. The voltage frequency (0.00196) of both CFLs are the same, whereas the current frequencies are different. This indicates that the wattage of a CFL does not affect the frequency of its voltage waveform. The frequency of the 11W CFL current (0.00157) is higher than that of the 15W CFL current (0.00784). This implies that the higher the CFL wattage, the lower the frequency of its current waveform. Additionally, simulation results revealed that the key difference between the CFLs is the current total harmonic distortion (THDI), which increases with an increasing rated power of the CFL or the aggregation of a number of the smaller rated CFLs.

scholarly journals POVIX: Una interfaz gráfica de usuario (GUI) en MatLab para calcular el polinomio de Villarreal

2020 ◽  
Vol 2 (2) ◽  
pp. 09
Author(s):  
Lenin Quiñones Huatangari ◽  
Manuel Emilio Milla Pino ◽  
Leonardo Damián Sandoval
Keyword(s):  
User Interface ◽  
Graphical User Interface ◽  
Development Environment ◽  
El Sistema

<p>El matemático peruano Federico Villarreal en 1879 propuso una fórmula para calcular la potencia n-ésima de un polinomio P(x), denominado Polinomio de Villarreal. El objetivo del presente trabajo fue crear una interfaz gráfica para usuario que nos permita calcular la potencia n-ésima entera de un polinomio, a partir de la fórmula propuesta por el científico. Para ello se utilizó la herramienta matemática MatLab v9.2 (R2017a) sobre el sistema operativo Windows 10. Con ayuda del Toolbox GUIDE (Graphical User Interface Development Environment) se diseñó la GUI basada en la fórmula propuesta por Villarreal. Además, con MatLab Compiler™ v9.01, se obtuvo una aplicación autónoma, capaz de ejecutarse en cualquier computadora que tenga una distribución de Windows 10. El resultado obtenido del presente trabajo fue la interfaz gráfica para usuario denonimada POVIX, la cual los resultados que estima son los mismos que se ha obtenido por otros métodos analíticos.</p>

scholarly journals Implementation of Pll in Rf Transceiver using SPI and Uart Protocols

2019 ◽  
Vol 8 (4) ◽  
pp. 10020-10024
Keyword(s):  
User Interface ◽  
Graphical User Interface ◽  
Software Defined Radio ◽  
Vital Role ◽  
Rf Transceiver ◽  
Development Environment ◽  
Integrated Development ◽  
Data Format ◽  
Cross Platform ◽  
Serial Peripheral Interface

Software Defined Radio plays vital role in many applications as the components in it are software selectable. We can select desired frequency and modulation technique which can be selected through software. The desired frequency selected should be locked in phase locked loop (PLL). The desired frequency is selected by giving commands from Graphical User Interface (GUI) using Universal Asynchronous Receiver Transmitter (UART) and Serial Peripheral Interface (SPI) protocols.GUI is created using Qt creator which is a cross platform C++ and java script Integrated Development Environment (IDE). GUI is designed to generate the desired frequency. As soon as we select a frequency, the corresponding address and data are generated to configure in the Radio Frequency (RF) transceiver. These address and data are first sent to the PIC microcontroller by communicating through UART protocol and after setting data format, these are sent from Peripheral Interface Controller (PIC) to RF transceiver by communicating through SPI protocol. With this process, the registers in RF transceiver are controlled by the user

scholarly journals COMPACT FLUORESCENT LAMPS AS SOURCES OF ELECTROMAGNETIC FIELDS OF RADIO- FREQUENCY RANGE (EXPERIMENTAL STUDY)

2019 ◽  
pp. 59-62
Author(s):  
V.N. Nikitina ◽  
G.G. Lyashko ◽  
N.I. Kalinina ◽  
E.N. Pankina
Keyword(s):  
Experimental Study ◽  
Radio Frequency ◽  
Electromagnetic Fields ◽  
Electric Fields ◽  
Experimental Studies ◽  
Frequency Range ◽  
Electronic Ballast ◽  
Fluorescent Lamps ◽  
Compact Fluorescent Lamps ◽  
Surrounding Space

The objects of this study are compact fluorescent lamps with an electronic ballast and the hygienic assessment of electromagnetic fields created by compact fluorescent lamps. As part of the work, the selection of samples of compact fluorescent lamps for the experimental study of electromagnetic fields was carried out. The background levels of electric and magnetic fields with a frequency of 50 Hz and high-frequency range were measured. Experimental studies of the spectrum and intensity of electromagnetic fields created by compact fluorescent lamps were carried out with different variants of lamp placement (in a cartridge without a light armature, in a local lighting fixture, in general lighting fixtures – chandeliers). The study showed that compact fluorescent lamps equipped with electronic ballast create electromagnetic fields of radio frequency range in the surrounding space. The main frequency of radiation in the examined lamp samples ranged from 32 to 58 kHz. The intensity of electric fields created by compact fluorescent lamps may exceed the permissible level set for consumer goods.

scholarly journals Design of Graphical User Interface Development Environment Software for sizing of Grid Connected Photovoltaic (GCPV) system

2018 ◽  
Vol 7 (3.15) ◽  
pp. 145
Author(s):  
S Z.Mohammad Noor ◽  
S Zaini ◽  
A M.Omar
Keyword(s):  
User Interface ◽  
System Design ◽  
Graphical User Interface ◽  
Performance Ratio ◽  
Specific Yield ◽  
Pv System ◽  
Development Environment ◽  
Array Configuration ◽  
Pv Module ◽  
And Performance

This work presents a design of graphical user interface development environment (GUIDE) software for sizing of Grid Connected Photovoltaic (GCPV) system. The simulation model of the GCPV system design is developed by using GUIDE in MATLAB. The developed GUI display the performance of the PV system based on the three scenarios. The three scenarios are sizing based on architecture constraint, the energy required and budget constraint. The size of the GCPV system is from 4.6 kW to 60.0 kW. A GUIDE is developed to design and calculate the suitable size of photovoltaic (PV) module, analyses the optimum array configuration, selection of inverter, size of cable, determine the specific yield and performance ratio. The GUI be able to make a user’s job easier and beneficial in assisting the GCPV system design process compared to the manual calculation of the GCPV system.  

High-efficient integrated electronic ballast for compact fluorescent lamps

2006 ◽  
Vol 21 (2) ◽  
pp. 532-542 ◽  
Author(s):  
M. Ponce ◽  
A.J. Martinez ◽  
J. Correa ◽  
M. Cotorogea ◽  
J. Arau
Keyword(s):  
Electronic Ballast ◽  
Fluorescent Lamps ◽  
Compact Fluorescent Lamps ◽  
High Efficient
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