Design of an LLC Resonant Converter for Driving Multiple LED Lights Using Current Balancing of Capacitor and Transformer
In this study, to achieve the constant current drive and brightness control without a separate pulse width modulation (PWM) converter, a single converter is designed and verified by experiment under the condition of a multiple LED light load with different output voltage (Vf) characteristics. In t...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2015-03-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1996-1073/8/3/2125 |
| _version_ | 1811300972149866496 |
|---|---|
| author | Jae-Hyun Han Young-Cheol Lim |
| author_facet | Jae-Hyun Han Young-Cheol Lim |
| author_sort | Jae-Hyun Han |
| collection | DOAJ |
| description | In this study, to achieve the constant current drive and brightness control without a separate pulse width modulation (PWM) converter, a single converter is designed and verified by experiment under the condition of a multiple LED light load with different output voltage (Vf) characteristics. In the case of the input of 140 Watt class level, the proposed converter can drive two voltage type 95 Vdc (300 mA) light emitting diode (LED) lights loads and 120 Vdc (300 mA) LED lights loads simultaneously. In addition, to improve commercial compatibility, the proposed converter is operated in a wide range of the input voltage 90~264 Vac; also, the Power Factor Correction (PFC) circuit with the input power factor of more than 0.9 is added. In order to maximize the power conversion efficiency, a LLC resonant converter is applied to the PFC block with the output voltage of 380 Vdc and to a DC-DC conversion block. Finally, reliability of the proposed converter is verified through total harmonic distortion (THD) and electromagnetic interference (EMI) tests. |
| first_indexed | 2024-04-13T06:59:19Z |
| format | Article |
| id | doaj.art-e5504219040847db8f568b86936284c2 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-13T06:59:19Z |
| publishDate | 2015-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-e5504219040847db8f568b86936284c22022-12-22T02:57:09ZengMDPI AGEnergies1996-10732015-03-01832125214410.3390/en8032125en8032125Design of an LLC Resonant Converter for Driving Multiple LED Lights Using Current Balancing of Capacitor and TransformerJae-Hyun Han0Young-Cheol Lim1LG Innotek Co., Ltd., 26, Hanamsandan 5beon-ro, Gwangsan-gu, Gwangju 506-731, KoreaDepartment of Electrical Engineering, Chonnam National University, Gwangju 500-757, KoreaIn this study, to achieve the constant current drive and brightness control without a separate pulse width modulation (PWM) converter, a single converter is designed and verified by experiment under the condition of a multiple LED light load with different output voltage (Vf) characteristics. In the case of the input of 140 Watt class level, the proposed converter can drive two voltage type 95 Vdc (300 mA) light emitting diode (LED) lights loads and 120 Vdc (300 mA) LED lights loads simultaneously. In addition, to improve commercial compatibility, the proposed converter is operated in a wide range of the input voltage 90~264 Vac; also, the Power Factor Correction (PFC) circuit with the input power factor of more than 0.9 is added. In order to maximize the power conversion efficiency, a LLC resonant converter is applied to the PFC block with the output voltage of 380 Vdc and to a DC-DC conversion block. Finally, reliability of the proposed converter is verified through total harmonic distortion (THD) and electromagnetic interference (EMI) tests.http://www.mdpi.com/1996-1073/8/3/2125multiple LED lightsLLC resonant convertercurrent balancingefficiencypower factortotal harmonic distortion (THD)electromagnetic interference (EMI) testlife time |
| spellingShingle | Jae-Hyun Han Young-Cheol Lim Design of an LLC Resonant Converter for Driving Multiple LED Lights Using Current Balancing of Capacitor and Transformer Energies multiple LED lights LLC resonant converter current balancing efficiency power factor total harmonic distortion (THD) electromagnetic interference (EMI) test life time |
| title | Design of an LLC Resonant Converter for Driving Multiple LED Lights Using Current Balancing of Capacitor and Transformer |
| title_full | Design of an LLC Resonant Converter for Driving Multiple LED Lights Using Current Balancing of Capacitor and Transformer |
| title_fullStr | Design of an LLC Resonant Converter for Driving Multiple LED Lights Using Current Balancing of Capacitor and Transformer |
| title_full_unstemmed | Design of an LLC Resonant Converter for Driving Multiple LED Lights Using Current Balancing of Capacitor and Transformer |
| title_short | Design of an LLC Resonant Converter for Driving Multiple LED Lights Using Current Balancing of Capacitor and Transformer |
| title_sort | design of an llc resonant converter for driving multiple led lights using current balancing of capacitor and transformer |
| topic | multiple LED lights LLC resonant converter current balancing efficiency power factor total harmonic distortion (THD) electromagnetic interference (EMI) test life time |
| url | http://www.mdpi.com/1996-1073/8/3/2125 |
| work_keys_str_mv | AT jaehyunhan designofanllcresonantconverterfordrivingmultipleledlightsusingcurrentbalancingofcapacitorandtransformer AT youngcheollim designofanllcresonantconverterfordrivingmultipleledlightsusingcurrentbalancingofcapacitorandtransformer |