A Line Power-Supply for LED Lighting using Piezoelectric Transformers in Class-E Topology

2006 ◽  
Author(s):  
F.E. Bisogno ◽  
S. Nittayarumphong ◽  
M. Radecker ◽  
A.V. Carazo ◽  
R.N. do Prado
Keyword(s):  
Power Supply ◽  
Led Lighting ◽  
Piezoelectric Transformers ◽  
Class E

scholarly journals Disturbances Generated by Lighting Systems with LED Lamps and the Reduction in Their Impacts

2019 ◽  
Vol 9 (22) ◽  
pp. 4894 ◽  
Author(s):  
Putz ◽  
Bednarek ◽  
Nawrowski
Keyword(s):  
Power Supply ◽  
Final Part ◽  
Test Results ◽  
Two Stage ◽  
Higher Harmonics ◽  
Led Lighting ◽  
Electrical Systems ◽  
Lighting Systems ◽  
Electromagnetic Disturbances

The paper deals with electromagnetic disturbances in the form of current higher harmonics, which are generated by LED lighting elements. It presents the problems related to the formation and impact of higher harmonics in the electrical systems of commercial facilities. The results of tests and analyses of current distortions for two different LED lamps are included, and these are in reference to the parameters set out in the normal applicable standards. A system was then proposed to improve the quality of energy in the mains of commercial facilities in the form of a two-stage power supply. Tests of the systems with the aforementioned LED lamps were conducted and commented upon after introduction of the two-stage power supply. The final part of the paper contains a summary of the obtained test results.

Non-Contact Power Supply LED Lighting System

2014 ◽  
Vol 971-973 ◽  
pp. 1099-1102
Author(s):  
You Qiang Lai ◽  
Jing Feng He ◽  
Min Ji
Keyword(s):  
Power Supply ◽  
Wireless Transmission ◽  
Lighting System ◽  
Transmit Power ◽  
Resonant Coupling ◽  
Led Lighting ◽  
Led Lights

The design using CVRCON control and drive the oscillating circuit, making the oscillating circuit resonant coupling, realizing the wireless transmission of power, and allowing the LED lights can be lit. The key can adjust the sampling resistor value, changing the transmit power, and controlling the LED brightness.

Design of Dimmable LED Lighting for DC Storage Power Supply

2013 ◽  
Vol 311 ◽  
pp. 238-242
Author(s):  
Yong Nong Chang ◽  
Hung Liang Cheng ◽  
Chih Ming Kuo
Keyword(s):  
Power Supply ◽  
High Efficiency ◽  
Power Converter ◽  
Operating Efficiency ◽  
Resonant Converter ◽  
Led Lighting ◽  
Zero Current Switching ◽  
Zero Current ◽  
Circuit Structure ◽  
Driving Circuit

In this paper, a dimmable LED lighting driving circuit with high efficiency for DC storage power supply is proposed. In this research, Class-E resonant converter is principal circuit structure and possesses superior efficiency in the power converter. LED lighting set accompanied with multiple transformers in cascade are employed, which can improve current uniform problem and increase operating reliability. Furthermore, integral cycle switching technique will be utilized to implement the dimmer design, integral cycle switching control dimmer possesses the advantage of zero-current-switching (ZCS) and can effectively promote the operating efficiency

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