 The employ of the fluorescent lamps without electrodes (electrodeless) have been increasing, because of their features such as lifetime and lumen efficiency, when compared to conventional fluorescent and high pressure sodium (HPS) lamps. This paper presents a luminous flux variation strategy using a Single Ended Primary Inductance Converter (SEPIC) for feeding of electrodeless fluorescent lam...

In this paper, expressions of the neutral conductor current in three-phase networks with compact fluorescent lamps (CFLs) are obtained from a CFL “black-box” model proposed in the literature. These expressions allow studying and performing a sensitivity analysis of the impact of CFLs on neutral current. The influence of CFL model parameters, as well as supply voltage unbalance, number of CFLs p...

Energy efficiency can be an interesting field for alternative investments. The main question is: Are these investments worthwhile? This article presents a new approach to evaluate the risks and achievable returns of energy efficiency investments via the example of lighting devices: To the author’s knowledge, cost equivalents have not been used to compare alternative solutions in the field of en...

BACKGROUND With the fast growth in the market of fluorescent lamps, particularly compact fluorescent light, the associated risk of mercury exposure, which is an essential component in all types of fluorescent lamps, has received increasing public attention worldwide. Even low doses of mercury are toxic. OBJECTIVE To study the health consequences of occupational exposure to mercury in workers ...

The penetration of nonlinear loads on power systems increases the harmonics that can cause detrimental problems to power systems such as an increase in voltage distortion, equipment failure, system resonance, increase system losses and decrease system efficiency. Many factors affect the harmonics produced by nonlinear loads. Hence, the aim of this paper is to evaluate the impacts of system volt...

Abstract Piezoelectric transformers are mainly commercialized for a LCD back light inverter module. With regard to laptop computers, the required output power for a piezoelectric transformer is around 5 W at present, and higher power will be needed for wider displays in the near future. In addition, modules such as AC-DC adaptors or fluorescent lamps may require a higher output power of more th...

In a context where energy is valued, the use of Compact Fluorescent Light bulbs with low energy consumption (CFL) tends to generalize. However, the radio noise produced by these sources is currently the subject of many discussions, particularly about the issue of human exposure. This paper is dedicated to the characterization of the electric and magnetic fields radiated by various models of lam...