Affiliation:
1. Department of Electrical Engineering National Institute of Technology Warangal Warangal India
Abstract
SummaryLight emitting diode (LED) driver systems are now moving toward reduced processing power to improve conversion efficiency in indoor and outdoor applications. LED drivers connected to a single‐phase supply must meet the requirements for power factor correction with lower input current harmonics to maintain the alternating current (AC) power grid's quality and maintain a constant current through the LED load to eliminate the flickering effect in the light output. An LED driver is required to fulfill these requirements. In this paper, a new reduced processing power LED driver is proposed. By splitting the output capacitor into two capacitors and with the help of hardware design, the processing power can be reduced by using fewer semiconductors than in earlier designs. The proposed driver employs a simple ripple cancellation control approach to eliminate the 100 Hz ripple in the LED load current. Using this principle, an LED driver was designed and tested. The experimental results demonstrated that the proposed LED driver achieved an input power factor close to unity with lower input current harmonics and 92.5% of peak efficiency when operating at full power.
Subject
Applied Mathematics,Electrical and Electronic Engineering,Computer Science Applications,Electronic, Optical and Magnetic Materials
Cited by
2 articles.
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1. Single‐stage triple‐output Cuk power factor correction converter;International Journal of Circuit Theory and Applications;2023-09-20
2. High Efficient High Power Factor Single phase LED Driver with Constant Output Current without Electrolytic Capacitor*;2023 International Conference on Computer, Electronics & Electrical Engineering & their Applications (IC2E3);2023-06-08