Design of LED Driver Power Based on LNK417EG
Journal Title: IOSR Journals (IOSR Journal of Electrical and Electronics Engineering) - Year 2017, Vol 12, Issue 1
Abstract
In recent years, people have been committed to the development and the design of new lighting sources. The life of LED lamps depends on the life of the LED driver which has a great relationship with the life of the electrolytic capacitor. In this paper the advantages of the drive power of the electrolytic capacitor are analyzed and the design of the PFC circuit and the transformer is described in details. On the basis of the LNK417 driver chip, a novel single-stage flyback drive circuit without the electrolytic capacitor is designed, which combines the power factor correction technology and constant current control to avoid the use of large electrolytic capacitors. The design and implementation of the control circuit are given and the overall performance is tested and analyzed in the article. The test results show that the driver is of high efficiency, high PF and long life etc. The efficiency is up to 85% and the PF value is not less than 0.9.
Authors and Affiliations
Fu Xiansong, Hao Changjie
Keywords
Related Articles
- EP ID EP389081
- DOI 10.9790/1676-1201041622.
- Views 129
- Downloads 0
Optimal Siting and Sizing of Dg in Distribution Networks for Power Loss Saving
This paper presents a methodology to determine optimal location and size of DG so as to minimize real/active power loss in the distribution network. For this purpose, suitable expressions have been derived to compute the...
Vertical-Edge-Based Car-License-Plate Detection Method
Vehicle plate recognition is a successful image processing technique used to recognize vehicles' plate numbers. There are several applications for this method which enlarge through many fields and attention groups. Vehic...
Impact of Large Scale Renewable Integration in Bangladesh Power System
Bangladesh, a small developing country of south Asia observing a rapid economic transition from agriculture to industry and facing a threat of unsatisfied consumer demand of energy exacerbating with growing population. K...
Selective Harmonic Elimination in a Conventional Single Phase Full-Bridge Inverter with Adjustable Output
Ordinary single-phase inverter gives a square wave output which when applied to electrical appliances may damage the later, reduce its efficiency as well as life as this inverter output waveform is not sinusoidal and con...
Smart Devices Control System By Using Android
Today, net of Things technology is most popular compared to manual systems. With the fast will increase within the variety of users of the net over the past decade, this case has created net a locality and approach of li...