The post Meet the Massive Prehistoric Fish That Survived on Plankton appeared first on A-Z Animals.
Leedsichthys problematicus dominated the Jurassic seas as the largest bony fish, surviving exclusively on microscopic plankton.
Assessing…
COLOMBO, Jan. 10 (Xinhua) — Sri Lanka has recorded 2,170 dengue cases during the first nine days of 2026, health officials said on Saturday.
Prashila Samaraweera, community medical specialist of the National Dengue Control Unit, told…
Authorities have approved plans to construct new water supply projects to address water shortages in Rawalpindi and Islamabad, with a target completion date of December 2027.
Officials approved the construction of the Dotara Dam and the…
Chinese company Roborock offered a sneak peek at CES 2026 of an autonomous vacuum cleaner that doesn’t just avoid stairs, but actively climbs and cleans them.
Mumbai: AIMIM chief Asaduddin Owaisi has said a hijab-clad woman would one day become India’s prime minister as the country’s Constitution accords equal status to people from all communities unlike that of Pakistan, which restricts top…
The universe has a habit of throwing curveballs. Just when astronomers think they have the big picture sorted out, something odd pops up in the data and refuses to fit the usual labels.
That is exactly what happened while researchers were quietly…
Chen, B. High frequency design and efficiency optimization of LLC resonant converter based on SiC devices. Appl. Comput. Eng. 145, 176–181. https://doi.org/10.54254/2755-2721/2025.22243 (2025).
Mao, W. & Ma, X. LLC resonant converter analysis in PO mode. J. Phys. Conf. Ser. 2758, 012051. https://doi.org/10.1088/1742-6596/2758/1/012009 (2024).
Galal, O. Y., Abdelsalam, I. & Marei, M. I. Partially isolated three-port converter for electric vehicle charging applications. Proc. MEPCON Conference (2024). https://doi.org/10.1109/MEPCON63025.2024.10850482
Rocha, J. et al. Design and implementation of a DC–DC resonant LLC converter for electric vehicle fast chargers. Energies 18, 1099. https://doi.org/10.3390/en18051099 (2025).
Farag, A. Y., Amer, M. R., El-Metwally, K. & Mahgoub, A. Design methodology of LLC resonant converter for PV-powered Li-ion battery charger. IEEE Access. 13, 115640–115652. https://doi.org/10.1109/ACCESS.2025.3585483 (2025).
Jia, P. & Liu, M. A wide range LLC resonant converter realized by an adjustable turns ratio transformer. IEEE Trans. Power Electron. 40, 10396–10401. https://doi.org/10.1109/TPEL.2025.3561804 (2025).
Beiranvand, R., Rashidian, B., Zolghadri, M. & Alavi, S. M. Using LLC resonant converter for designing wide-range voltage source. IEEE Trans. Ind. Electron. 58, 1746–1756. https://doi.org/10.1109/TIE.2010.2052537 (2011).
Zhou, X. et al. Wide voltage-regulation range synchronous-rectifier LLC converter with novel operation modes. IEEE Transactions Transportation Electrification in Press 1–1 (2025). https://doi.org/10.1109/TTE.2025.3545817
Song, H., Xu, D. & Zhang, A. J. Re-analysis on ZVS condition for LLC converter. 2021 IEEE Application Power Electronic Conference Exponential (APEC) 1874–1880 (2021). https://doi.org/10.1109/APEC42165.2021.9487400
Beiranvand, R., Rashidian, B., Zolghadri, M. R. & Alavi, S. M. H. A design procedure for optimizing the LLC resonant converter as a wide output range voltage source. IEEE Trans. Power Electron. 27, 3749–3763. https://doi.org/10.1109/TPEL.2012.2187801 (2012).
Hua, C. C., Lai, J. B. & Hung, W. C. A parallel dual LLC resonant converter with wide output voltage range for energy system applications. Energies 18, 1635. https://doi.org/10.3390/en18071635 (2025).
Yu, H., Xie, X., Yang, Q. & Lou, Y. Wide output voltage range LLC resonant converter for 800 V electric-vehicle battery chargers. J. Power Electron. 25, 1054–1067. https://doi.org/10.1007/s43236-025-01002-8 (2025).
Sim, D. H., Lee, J. A. & Lee, B. K. Design and control strategies for a 25 kW LLC converter with a wide output voltage range comprising distributed core transformers. J. Electr. Eng. Technol. 20, 2179–2190. https://doi.org/10.1007/s42835-025-02154-0 (2025).
Yoo, J. S., Gil, Y. & Ahn, T. Y. Steady-state analysis and optimal design of an LLC resonant converter considering internal loss resistance. Energies 15, 8144. https://doi.org/10.3390/en15218144 (2022).
Jami, M., Beiranvand, R., Mohamadian, M. & Ghasemi, M. Optimization the LLC resonant converter for achieving maximum efficiency at a predetermined load value. 6th Power Electronic Drive System Technology Conference (PEDSTC) 149–155 (2015). https://doi.org/10.1109/PEDSTC.2015.7093265
Yin, M. & Luo, Q. Stepwise multi-objective parameter optimization design of LLC resonant DC–DC converter. Energies 17 (1919). https://doi.org/10.3390/en17081919 (2024).
Zuo, Y., Niu, H., Zhang, R. & Pan, X. The modified FHA and simplified time-domain analysis methodologies for LLC resonant converter. IEEE 12th Energy Conversation Congress Exponential Asia (ECCE-Asia), 56–61 (2021)., 56–61 (2021). (2021). https://doi.org/10.1109/ECCE-Asia49820.2021.9479161
Zhang, S. et al. An accurate dynamic time-domain model for LLC resonant converter by considering nonideal components, various modulation strategies, and dynamic process. IEEE J. Emerg. Sel. Top. Power Electron. 13, 3119–3137. https://doi.org/10.1109/JESTPE.2025.3558288 (2025).
Luo, J., Wang, J., Fang, Z., Shao, J. & Li, J. Optimal design of a high efficiency LLC resonant converter with a narrow frequency range for voltage regulation. Energies 11, 1124. https://doi.org/10.3390/en11051124 (2018).
Bhuvela, P., Taghavi, H. & Nasiri, A. Design methodology for a medium voltage single stage LLC resonant solar PV inverter. In 12th International Conference Renewable Energy Research Applications (ICRERA) 556–562 (2023). https://doi.org/10.1109/ICRERA59003.2023.10269431
Yin, M. & Luo, Q. Stepwise multi-objective parameter optimization design of LLC resonant DC–DC converter. Energies 17, (1919). (2024) https://doi.org/10.3390/en17081919
Zhao, Y., Wang, C. & Lei, M. Multi-objective parameter optimization of LLC resonant converter based on PO mode. J. Electr. Eng. Technol. 20, 2479–2495. https://doi.org/10.1007/s42835-025-02207-4 (2025).
Park, S. S., Yang, S. H. & Kim, R. Y. Multi-objective optimal design for LLC converters based on TDA and surrogate model for high accuracy and low computational burden. In 2024 IEEE Energy Conversation Congress Exposure (ECCE). 4401–4407 (2024). https://doi.org/10.1109/ECCE55643.2024.10861802
De Simone, S., Adragna, C., Spini, C. & Gattavari, G. Design-oriented steady-state analysis of LLC resonant converters based on FHA. Int. Symp. Power Electron. Electr. Drives Autom. Motion (SPEEDAM), 200–207 (2006). ), 200–207 (2006). (2006). https://doi.org/10.1109/SPEEDAM.2006.1649771
Wei, Y., Luo, Q., Wang, Z. & Mantooth, H. A. A complete step-by-step optimal design for LLC resonant converter. IEEE Trans. Power Electron. 36, 3674–3691. https://doi.org/10.1109/TPEL.2020.3015094 (2021).
Xiao, Z., He, Z., Guan, R. & Luo, A. Piecewise-approximated time domain analysis of LLC resonant converter considering parasitic capacitors and deadtime. IEEE Trans. Power Electron. 38, 578–592. https://doi.org/10.1109/TPEL.2022.3207329 (2023).
Zhao, Q., Zhang, J., Gao, Y., Wang, D. & Yang, Q. Hybrid variable frequency LLC resonant converter with wide output voltage range. IEEE Trans. Power Electron. 38, 11038–11049. https://doi.org/10.1109/TPEL.2023.3283548 (2023).
Apple has long run its iPhone development roadmap in multi-year cycles. The company works in parallel with suppliers on several future generations, so it is hardly…