A New Circuit Design of AC/DC Converter for T8 LED Tube
This study is about an improved high-quality light-emitting diode (LED) converter for a T8 LED tube. The converter is separated into the AC driving circuit and DC driving circuit. Also, the LED tube was applied with an output ripple eliminator for the optical performance. The AC driving circuit and...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/1/421 |
| _version_ | 1797542393290948608 |
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| author | Sunghwan Kim Haiyoung Jung |
| author_facet | Sunghwan Kim Haiyoung Jung |
| author_sort | Sunghwan Kim |
| collection | DOAJ |
| description | This study is about an improved high-quality light-emitting diode (LED) converter for a T8 LED tube. The converter is separated into the AC driving circuit and DC driving circuit. Also, the LED tube was applied with an output ripple eliminator for the optical performance. The AC driving circuit and DC driving circuit are assembled at the end of the LED tube in a G13 base and a G13 base dummy, respectively, and the output ripple eliminator is located on an LED PCB. The proposed LED converter is founded on a SSBB (single-stage buck-boost) converter topology and was designed for 10 W operation for a 600 mm T8 LED tube. The light waveform of the LED tube was measured by a photosensor. The waveform had almost no ripple and was the same as a straight line. The average calculated percent flicker of the proposed LED converter was an average of 1.9% at 100 and 240 VAC, 50 and 60 Hz. The proposed converter has lower power efficiency than a conventional converter by 2.7% at 100–240 VAC, but it still has high power efficiency (>87%). The measurement results represent that the LED output current regulation is below 0.92% at 100–240 VAC and the converter obtains the power factor more than 0.84 and the total harmonic distortion is less than 14.3%. All of the current harmonics reach the IEC 61000-3-2 Class D standards for high-quality LED converters. |
| first_indexed | 2024-03-10T13:29:57Z |
| format | Article |
| id | doaj.art-63d97541d9cb4a54b83d8dc5e8f04a33 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T13:29:57Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-63d97541d9cb4a54b83d8dc5e8f04a332023-11-21T08:06:22ZengMDPI AGApplied Sciences2076-34172021-01-0111142110.3390/app11010421A New Circuit Design of AC/DC Converter for T8 LED TubeSunghwan Kim0Haiyoung Jung1Electrical Engineering Department, Inha University, 100 Inharo, Nam-gu Incheon 22212, KoreaFire and Disaster Prevention Department, Semyung University, 65 Semyung-ro, Jecheon-si, Chungcheongbuk-do 27136, KoreaThis study is about an improved high-quality light-emitting diode (LED) converter for a T8 LED tube. The converter is separated into the AC driving circuit and DC driving circuit. Also, the LED tube was applied with an output ripple eliminator for the optical performance. The AC driving circuit and DC driving circuit are assembled at the end of the LED tube in a G13 base and a G13 base dummy, respectively, and the output ripple eliminator is located on an LED PCB. The proposed LED converter is founded on a SSBB (single-stage buck-boost) converter topology and was designed for 10 W operation for a 600 mm T8 LED tube. The light waveform of the LED tube was measured by a photosensor. The waveform had almost no ripple and was the same as a straight line. The average calculated percent flicker of the proposed LED converter was an average of 1.9% at 100 and 240 VAC, 50 and 60 Hz. The proposed converter has lower power efficiency than a conventional converter by 2.7% at 100–240 VAC, but it still has high power efficiency (>87%). The measurement results represent that the LED output current regulation is below 0.92% at 100–240 VAC and the converter obtains the power factor more than 0.84 and the total harmonic distortion is less than 14.3%. All of the current harmonics reach the IEC 61000-3-2 Class D standards for high-quality LED converters.https://www.mdpi.com/2076-3417/11/1/421high circuit efficiencyphotosensorpower factor correctionSSBB converter topologyripple |
| spellingShingle | Sunghwan Kim Haiyoung Jung A New Circuit Design of AC/DC Converter for T8 LED Tube Applied Sciences high circuit efficiency photosensor power factor correction SSBB converter topology ripple |
| title | A New Circuit Design of AC/DC Converter for T8 LED Tube |
| title_full | A New Circuit Design of AC/DC Converter for T8 LED Tube |
| title_fullStr | A New Circuit Design of AC/DC Converter for T8 LED Tube |
| title_full_unstemmed | A New Circuit Design of AC/DC Converter for T8 LED Tube |
| title_short | A New Circuit Design of AC/DC Converter for T8 LED Tube |
| title_sort | new circuit design of ac dc converter for t8 led tube |
| topic | high circuit efficiency photosensor power factor correction SSBB converter topology ripple |
| url | https://www.mdpi.com/2076-3417/11/1/421 |
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