A UV-C LED Lamp Driver Circuit Applied to a Direct-Current-Input Voltage Source for Sterilization and Germicidal Applications
Source abstract
Abstract
UV-C LEDs, which offer short-wavelength characteristics and serve as an alternative to traditional UV mercury lamps, represent a new light source for applications in space decontamination and surface disinfection. This paper presents the design and development of a UV-C LED lamp driver circuit configured to operate with a DC-input voltage source for sterilization and germicidal purposes. The primary circuit integrates a modified buck converter with a flyback converter, resulting in an innovative single-stage, single-switch DC-DC power converter. Additionally, the proposed electronic driver recovers energy stored in the transformer’s leakage inductors, enhancing overall circuit efficiency. A prototype driver circuit with a 3.3 W power rating (10 V/330 mA) is developed for a UV-C LED lamp intended for sterilization and germicidal applications with a DC-input voltage source. The experimental results from the prototype circuit, tested at an 18 V DC input, confirm the functionality of the proposed electronic driver for UV-C LED sterilization and germicidal lighting. Additionally, the circuit achieves efficiency exceeding 91%.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Listeria monocytogenes in Food Safety · Medical Device Sterilization and Disinfection · Biosensors and Analytical Detection
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Electrical Engineering, I-Shou University, Kaohsiung City 84001, Taiwan
Funding
National Science and Technology Council (NSTC) of Taiwan
References (29)
Show source-provided references
1. Recent advances on the application of UV-LED technology for microbial inactivation: Progress and mechanism10.1111/1541-4337.12645 ↗
2. Evaluating UV-C LED disinfection performance and investigating potential dual-wavelength synergy10.1016/j.watres.2016.11.024 ↗
3. Thinking outside the treatment plant: UV for water distribution system disinfection10.1021/acs.accounts.9b00060 ↗
4. Koutchm, T., Popović, V., and Green, A. (2019). Chapter 1—Overview of Ultraviolet (UV) LEDs Technology for Applications in Food Production. Ultraviolet LED Technology for Food Applications, Academic Press.10.1016/B978-0-12-817794-5.00001-7 ↗
5. Application of ultraviolet light-emitting diodes (UV-LEDs) for water disinfection: A review10.1016/j.watres.2016.03.003 ↗
6. Kim, D., and Kang, D. (2018). UVC LED Irradiation Effectively Inactivates Aerosolized Viruses, Bacteria, and Fungi in a Chamber-Type Air Disinfection System. Appl. Environ. Microbiol., 84.10.1128/AEM.00944-18 ↗
7. Effects of ultraviolet light emitting diodes (LEDs) on microbial and enzyme inactivation of apple juice10.1016/j.ijfoodmicro.2017.08.007 ↗
8. Effect of UV-C irradiation and heat treatment on the shelf life stability of a lemon–melon juice blend: Multivariate statistical approach10.1016/j.ifset.2015.03.005 ↗
9. Guan, Z., Liu, P., Zhou, T., Zhou, L., Zhang, D., Xie, Q., Yu, Q., He, Y., Wang, S., and Wang, X. (2022). Study on the Light Field Regulation of UVC-LED Disinfection for Cold Chain Transportation. Appl. Sci., 12.10.3390/app12031285 ↗
10. Storm, N., McKay, L.G.A., Downs, S.N., Johnson, R.I., Birru, D., de Samber, M., Willaert, W., Cennini, G., and Griffiths, A. (2020). Rapid and complete inactivation of SARS-CoV-2 by ultraviolet-C irradiation. Sci. Rep., 10.10.1038/s41598-020-79600-8 ↗
11. Aerosol susceptibility of influenza virus to UV-C light10.1128/AEM.06960-11 ↗
12. Atari, N., Mamane, H., Silberbush, A., Zuckerman, N., Mandelboim, M., and Gerchman, Y. (2023). Disinfection of SARS-CoV-2 by UV-LED 267 nm: Comparing different variants. Sci. Rep., 13.10.1038/s41598-023-35247-9 ↗
13. Ma, B., Gundy, P.M., Gerba, C.P., Sobsey, M.D., and Linden, K.G. (2021). UV inactivation of SARS-CoV-2 across the UVC spectrum: KrCl excimer, mercury-vapor, and light-emitting-diode (LED) sources. Appl. Environ. Microbiol., 87.10.1128/AEM.01532-21 ↗
14. Comparison of UV-induced inactivation and RNA damage in MS2 phage across the germicidal UV spectrum10.1128/AEM.02773-15 ↗
15. Clerici. UV-C irradiation is highly effective in inactivating SARS-CoV-2 replication10.1038/s41598-021-85425-w ↗
16. Ultra Violet (UV) Light Irradiation Device for Hospital Disinfection10.4018/IJICTHD.313978 ↗
17. Radiation crosslinking of pigmented coating material by UV LEDs enabling depth curing and preventing oxygen inhibition10.1016/j.porgcoat.2020.105663 ↗
18. Chapter Two—Development of Deep UV LEDs and Current Problems in Material and Device Technology10.1016/bs.semsem.2016.08.002 ↗
19. Liang, J.J., Liao, C.C., Chang, C.S., Lee, C.Y., Chen, S.Y., Huang, S.B., Yeh, Y.F., Singh, K.J., Kuo, H.C., and Lin, Y.L. (2021). The Effectiveness of Far-Ultraviolet (UVC) Light Prototype Devices with Different Wavelengths on Disinfecting SARS-CoV-2. Appl. Sci., 11.10.3390/app112210661 ↗
20. Design strategies based on UV-C LED characterization to enhance Escherichia coli inactivation10.1016/j.jwpe.2024.105423 ↗
21. A 265-Nanometer High-Power Deep-UV Light-Emitting Diode Rapidly Inactivates SARS-CoV-2 Aerosols
22. Using UVC light-emitting diodes at wavelengths of 266 to 279 nanometers to inactivate foodborne pathogens and pasteurize sliced cheese10.1128/AEM.02092-15 ↗
23. Cheng, C.A., Lan, L.F., Hou, S.H., and Lin, C.K. (2023, January 27–29). A Single-Stage Electronic Lighting Driver for a Deep Ultraviolet LED Disinfection and Sterilization Lamp. Proceedings of the The Workshop on Wide Bandgap Power Devices and Applications in Asia (WiPDA-Asia 2023), Hsinchu, Taiwan.10.1109/WiPDAAsia58218.2023.10261897 ↗
24. Mathebula, T., Leuschner, F.W., and Chowdhury, S.P. (2018, January 28–29). The Use of UVC-LEDs for the Disinfection of Mycobacterium Tuberculosis. Proceedings of the 2018 IEEE PES/IAS PowerAfrica, Cape Town, South Africa.10.1109/PowerAfrica.2018.8521172 ↗
25. (2024, November 10). ICNIRP Statement Light-Emitting Diodes (LEDS): Implications for Safety. Available online: https://www.icnirp.org/cms/upload/publications/ICNIRPled2020.pdf.
26. Design and Implementation of a Germicidal UVC-LED Lamp10.1109/ACCESS.2020.3034436 ↗
27. Single-Switch Soft-Switching LED Driver Suitable for Battery-Operated Systems10.1109/TIE.2018.2844825 ↗
28. Cheng, C.-A., Chang, C.-H., Chang, E.-C., Cheng, H.-L., Yan, W.-Y., and Lan, L.-F. (2024, January 9–11). A Novel Electronic Lighting Driver for a UV-C LED Disinfection and Sterilization Lamp Applied to a DC-Input Voltage Source. Proceedings of the IEEE International Conference on Consumer Electronics (IEEE ICCE-TW 2024), Taichung, Taiwan.10.1109/ICCE-Taiwan62264.2024.10674395 ↗
29. Cheng, C.-A., Chang, C.-H., Cheng, H.-L., Chang, E.-C., Lin, Y.-R., and Lan, L.-F. (2023). A Novel Light-Emitting Diode Streetlight Driver Circuit Applied to a Direct Current-Input Voltage Source. Sustainability, 15.10.3390/su151410934 ↗