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Dive into the research topics where Melvin C. Cosby is active.

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Featured researches published by Melvin C. Cosby.


Journal of The Illuminating Engineering Society | 2004

Design, Analysis and Optimization of a Universal Power Factor Correction Circuit for Linear Fluorescent Lamps

Ana Vladan Stankovic; Divya Uppala; David Joseph Kachmarik; Melvin C. Cosby; L. Nerone

In this paper the analysis and optimization of a universal high power factor correction circuit for linear fluorescent lamps is presented. The design and analysis criteria for the converter include a universal voltage input, 120 to 277 V AC with power handling capability from no load to 110 watts. In addition a new PSPICE model for universal power factor correction circuit operating in the critical conduction mode has been developed. Simulation and analytical results have been validated against actual laboratory measurements.


Archive | 2011

Dimmable outdoor luminaires

Laszlo S. Ilyes; Melvin C. Cosby; Himamshu Prasad; Jason Creighton


Archive | 2006

Voltage fed inverter for fluorescent lamps

Louis Robert Nerone; Melvin C. Cosby


Archive | 2002

High frequency/high power factor inverter circuit with combination cathode heating

Timothy Chen; Melvin C. Cosby; James K. Skully


Archive | 2002

Method of delaying and sequencing the starting of inverters that ballast lamps

Louis Robert Nerone; David Joseph Kachmarik; Melvin C. Cosby


Archive | 2008

Dimmable instant start ballast

Louis Robert Nerone; Melvin C. Cosby


Archive | 2002

Ballast circuit with multiple inverters and dimming controller

Louis Robert Nerone; David Joseph Kachmarik; Melvin C. Cosby


Archive | 2000

Shutdown circuit for a half-bridge converter

Benito Trevino; Melvin C. Cosby; Gordon Alexander Grigor; Louis Robert Nerone


Archive | 2007

AUXILIARY LIGHTING CIRCUIT FOR HIGH INTENSITY DISCHARGE SYSTEM

Laszlo S. Ilyes; Louis Robert Nerone; Melvin C. Cosby


Archive | 2002

POWER FACTOR CORRECTION CIRCUIT WITH FASTER BUS CHARGING RATE DURING STARTUP

Louis Robert Nerone; David Joseph Kachmarik; Melvin C. Cosby

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