Journal ArticleDOI
Performance Analysis of Single-Stage LED Buck Driver Topologies for Low-Voltage DC Distribution Systems
R. Srimathi,S. Hemamalini +1 more
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The demand for lean protein is the main reason for raising domesticated birds in poultry farms for the purpose of farming meat or eggs for food.Abstract:
The demand for lean protein is the main reason for raising domesticated birds in poultry farms for the purpose of farming meat or eggs for food. In these poultry farms, artificial lighting system i...read more
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Book ChapterDOI
Lighting Design for a Campus Hostel Building Using Single-Stage Efficient Buck LED Driver
TL;DR: A phase-shifted buck converter (PSBC) LED driver is designed and experimented for 24 and 6 W to retrofit the existing fluorescent lights in the two-bedded room as mentioned in this paper.
Book ChapterDOI
Efficiency Analysis of Quadratic Boost Converter Fed LED Drivers for Street Lighting
TL;DR: In this paper , three different types of LED drivers are designed based on dc-dc quadratic boost converters suitable for solar powered street lighting, and the efficiency of each driver is analyzed in detail and a comparison is presented.
An Efficient Boost Converter for Energy Storage Systems in a DC Distribution System
TL;DR: In this paper, a parallel switch Boost Converter (PBC) was designed for 400 W. The converter is designed for closed loop and the performance of the converters is analyzed in terms of output voltage ripple, input current ripple and efficiency.
References
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Journal ArticleDOI
Simplified analysis of PWM converters using model of PWM switch. II. Discontinuous conduction mode
TL;DR: In this article, it was shown that there is no theoretical or experimental justification for the disappearance of the inductor state as claimed by the method of state-space averaging for discontinuous conduction.
Journal ArticleDOI
Accurate Power Loss Model Derivation of a High-Current Dual Active Bridge Converter for an Automotive Application
Florian Krismer,Johann W. Kolar +1 more
TL;DR: The main reasons why the conventional method for converter analysis fails are described and the different steps required to predict the power losses more accurately are documents.
Journal ArticleDOI
LED Driver With Self-Adaptive Drive Voltage
Yuequan Hu,Milan M. Jovanovic +1 more
TL;DR: In this article, the output voltage of the preregulator is always self-adjusted so that the voltage across the linear current regulator of the LED string with the highest voltage drop is kept at the minimum value that is required to maintain the desired string current.
Journal ArticleDOI
Elimination of an Electrolytic Capacitor in AC/DC Light-Emitting Diode (LED) Driver With High Input Power Factor and Constant Output Current
Wu Chen,S. Y. Ron Hui +1 more
TL;DR: In this article, an ac/dc LED driver without electrolytic capacitor is studied and the operation principle, detailed design procedure of the main circuit, and control strategy are presented, and the feasibility of the proposed converter has been successfully verified by experiments.
Journal ArticleDOI
Spectral sensitivity of the domestic fowl (Gallus g. domesticus).
N. B. Prescott,C.M. Wathes +1 more
TL;DR: It is confirmed that broilers can 'see' into the UV(A) range and that their spectral sensitivity is different to the human and that the measurement of light intensity in poultry housing using the lux unit does not accurately describe the intensity perceived by fowl.